D2HW-BL252MR

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Technical content

D H W D2HW Sealed Ultra Subminiature Basic Switch Smallest sealed snap-action switch in the industry with a very long stroke for reliable ON/OFF action

• The case dimensions are 78% of conventional models, contributing to down-sizing of mechanical modules.
• Extra-long stroke even without levers. (OT reference value: 1.4 mm).
• Made of environmentally-friendly materials. All models are lead-free, including molded lead wire models. RoHS Compliant Model Number Legend 1. Mounting Structure A : Without posts (base-mounting) BR : Long post on right BL : Long post on left C : M3-screw mounting models ER : Short post on right EL : Short post on left 2. Raitings 2 : 5 VDC 1mA to 12 VDC 2A 3. Actuator 0 : Pin plunger 1 : Hinge lever 2 : Long hinge lever 3 : Simulated roller lever 4 : Hinge roller lever 5 : Straight leaf lever 6 : Leaf lever 7 : Simulated roller leaf lever 8 : Long leaf lever 4. Contact form 1 : SPDT 2 : SPST-NC (Molded lead wire models only) 3 : SPST-NO (Molded lead wire models only) 5. Terminals D, DS : PCB terminals (Straight) DR, DRS : PCB Terminals (Right-angled) DL, DLS : PCB Terminals (Left-angled) H, HS : Solder terminals M, MS : Molded lead wires downwards MR, MRS : Molded lead wires on right-side ML, MLS : Molded lead wires on left-side Note. UL/CSA approved versions are available. In this case, a "S" will be added to the end of the model number. The Lead wire is a UL approved wire (AWG24, UL1007). 6. Special Specification 7. Special Industry Specification 123 4 - -567

D2HW Sealed Ultra Subminiature Basic Switch D H W List of Models

• PCB-mounted Models Note1. Angled terminals and posts are the same direction. Note2. "S" is added to the end of the model number for the UL/C SA-approved version Consult your OMRON sales representative for details. List of Models Long post on right Short post on rightActuator Terminals Contact form Pin plunger For PCB Straight SPDT Angled D2HW-BR201DR D2HW-ER201DR Hinge lever Straight -- Angled D2HW-BR211DR D2HW-ER211DR Long hinge lever Straight -- Angled D2HW-BR221DR D2HW-ER221DR Simulated roller hinge lever Straight -- Angled D2HW-BR231DR D2HW-ER231DR List of Models Long post on left Short post on left Without posts Actuator Terminals Contact form Pin plunger For PCB Straight SPDT - - D2HW-A201D Angled D2HW-BL201DL D2HW-EL201DL - Hinge lever Straight - - D2HW-A211D Angled D2HW-BL211DL D2HW-EL211DL - Long hinge lever Straight - - D2HW-A221D Angled D2HW-BL221DL D2HW-EL221DL - Simulated roller hinge lever Straight - - D2HW-A231D Angled D2HW-BL231DL D2HW-EL231DL -

D2HW Sealed Ultra Subminiature Basic Switch D H W

• Models with Solder Terminals or Molded Lead Wires Note1. The length of standard lead wires (AVSS 0.5) for molded lead wire models shown above is 30 cm. Note2. "S" is added to the end of the model number for the UL/CSA-approved version The lead wire models are UL approved wires (A WG24, UL1007). Consult your OMRON sales representative for details. List of Models Long post on right Short post on right Actuator Terminals Contact form Pin plunger Solder SPDT D2HW-BR201H D2HW-ER201H Molded lead wires Downwards SPDT D2HW-BR201M D2HW-ER201M SPST-NC D2HW-BR202M D2HW-ER202M SPST-NO D2HW-BR203M D2HW-ER203M Right-side SPST-NC D2HW-BR202MR D2HW-ER202MR SPST-NO D2HW-BR203MR D2HW-ER203MR Left-side SPST-NC D2HW-BR202ML D2HW-ER202ML SPST-NO D2HW-BR203ML D2HW-ER203ML Hinge lever Solder SPDT D2HW-BR211H D2HW-ER211H Molded lead wires Downwards SPDT D2HW-BR211M D2HW-ER211M SPST-NC D2HW-BR212M D2HW-ER212M SPST-NO D2HW-BR213M D2HW-ER213M Right-side SPST-NC D2HW-BR212MR D2HW-ER212MR SPST-NO D2HW-BR213MR D2HW-ER213MR Left-side SPST-NC D2HW-BR212ML D2HW-ER212ML SPST-NO D2HW-BR213ML D2HW-ER213ML Long hinge lever Solder SPDT D2HW-BR221H D2HW-ER221H Molded lead wires Downwards SPDT D2HW-BR221M D2HW-ER221M SPST-NC D2HW-BR222M D2HW-ER222M SPST-NO D2HW-BR223M D2HW-ER223M Right-side SPST-NC D2HW-BR222MR D2HW-ER222MR SPST-NO D2HW-BR223MR D2HW-ER223MR Left-side SPST-NC D2HW-BR222ML D2HW-ER222ML SPST-NO D2HW-BR223ML D2HW-ER223ML Simulated roller hinge lever Solder SPDT D2HW-BR231H D2HW-ER231H Molded lead wires Downwards SPDT D2HW-BR231M D2HW-ER231M SPST-NC D2HW-BR232M D2HW-ER232M SPST-NO D2HW-BR233M D2HW-ER233M Right-side SPST-NC D2HW-BR232MR D2HW-ER232MR SPST-NO D2HW-BR233MR D2HW-ER233MR Left-side SPST-NC D2HW-BR232ML D2HW-ER232ML SPST-NO D2HW-BR233ML D2HW-ER233ML Hinge roller lever Solder SPDT D2HW-BR241H D2HW-ER241H Molded lead wires Downwards SPDT D2HW-BR241M D2HW-ER241M SPST-NC D2HW-BR242M D2HW-ER242M SPST-NO D2HW-BR243M D2HW-ER243M Right-side SPST-NC D2HW-BR242MR D2HW-ER242MR SPST-NO D2HW-BR243MR D2HW-ER243MR Left-side SPST-NC D2HW-BR242ML D2HW-ER242ML SPST-NO D2HW-BR243ML D2HW-ER243ML Straight leaf lever Solder SPDT D2HW-BR251H D2HW-ER251H Molded lead wires Downwards SPDT D2HW-BR251M D2HW-ER251M SPST-NC D2HW-BR252M D2HW-ER252M SPST-NO D2HW-BR253M D2HW-ER253M Right-side SPST-NC D2HW-BR252MR D2HW-ER252MR SPST-NO D2HW-BR253MR D2HW-ER253MR Left-side SPST-NC D2HW-BR252ML D2HW-ER252ML SPST-NO D2HW-BR253ML D2HW-ER253ML Leaf lever Solder SPDT D2HW-BR261H D2HW-ER261H Molded lead wires Downwards SPDT D2HW-BR261M D2HW-ER261M SPST-NC D2HW-BR262M D2HW-ER262M SPST-NO D2HW-BR263M D2HW-ER263M Right-side SPST-NC D2HW-BR262MR D2HW-ER262MR SPST-NO D2HW-BR263MR D2HW-ER263MR Left-side SPST-NC D2HW-BR262ML D2HW-ER262ML SPST-NO D2HW-BR263ML D2HW-ER263ML Simulated roller leaf lever Solder SPDT D2HW-BR271H D2HW-ER271H Molded lead wires Downwards SPDT D2HW-BR271M D2HW-ER271M SPST-NC D2HW-BR272M D2HW-ER272M SPST-NO D2HW-BR273M D2HW-ER273M Right-side SPST-NC D2HW-BR272MR D2HW-ER272MR SPST-NO D2HW-BR273MR D2HW-ER273MR Left-side SPST-NC D2HW-BR272ML D2HW-ER272ML SPST-NO D2HW-BR273ML D2HW-ER273ML Long leaf lever Solder SPDT D2HW-BR281H D2HW-ER281H Molded lead wires Downwards SPDT D2HW-BR281M D2HW-ER281M SPST-NC D2HW-BR282M D2HW-ER282M SPST-NO D2HW-BR283M D2HW-ER283M Right-side SPST-NC D2HW-BR282MR D2HW-ER282MR SPST-NO D2HW-BR283MR D2HW-ER283MR Left-side SPST-NC D2HW-BR282ML D2HW-ER282ML SPST-NO D2HW-BR283ML D2HW-ER283ML

D2HW Sealed Ultra Subminiature Basic Switch D H W

• Models with Solder Terminals or Molded Lead Wires Note1. The length of standard lead wires (AVSS 0.5) for molded lead wire models shown above is 30 cm. Note2. "S" is added to the end of the model number for the UL /CSA-approved version The lead wire models are UL approved wires (AWG24, UL1007). Consult your OMRON sales representative for details. List of Models Long post on left Short post on left M3-screw mounting Actuator Terminals Contact form Pin plunger Solder SPDT D2HW-BL201H D2HW-EL201H D2HW-C201H Molded lead wires Downwards SPDT D2HW-BL201M D2HW-EL201M D2HW-C201M SPST-NC D2HW-BL202M D2HW-EL202M D2HW-C202M SPST-NO D2HW-BL203M D2HW-EL203M D2HW-C203M Right-side SPST-NC D2HW-BL202MR D2HW-EL202MR D2HW-C202MR SPST-NO D2HW-BL203MR D2HW-EL203MR D2HW-C203MR Left-side SPST-NC D2HW-BL202ML D2HW-EL202ML - SPST-NO D2HW-BL203ML D2HW-EL203ML - Hinge lever Solder SPDT D2HW-BL211H D2HW-EL211H D2HW-C211H Molded lead wires Downwards SPDT D2HW-BL211M D2HW-EL211M D2HW-C211M SPST-NC D2HW-BL212M D2HW-EL212M D2HW-C212M SPST-NO D2HW-BL213M D2HW-EL213M D2HW-C213M Right-side SPST-NC D2HW-BL212MR D2HW-EL212MR D2HW-C212MR SPST-NO D2HW-BL213MR D2HW-EL213MR D2HW-C213MR Left-side SPST-NC D2HW-BL212ML D2HW-EL212ML - SPST-NO D2HW-BL213ML D2HW-EL213ML - Long hinge lever Solder SPDT D2HW-BL221H D2HW-EL221H D2HW-C221H Molded lead wires Downwards SPDT D2HW-BL221M D2HW-EL221M D2HW-C221M SPST-NC D2HW-BL222M D2HW-EL222M D2HW-C222M SPST-NO D2HW-BL223M D2HW-EL223M D2HW-C223M Right-side SPST-NC D2HW-BL222MR D2HW-EL222MR D2HW-C222MR SPST-NO D2HW-BL223MR D2HW-EL223MR D2HW-C223MR Left-side SPST-NC D2HW-BL222ML D2HW-EL222ML - SPST-NO D2HW-BL223ML D2HW-EL223ML - Simulated roller hinge lever Solder SPDT D2HW-BL231H D2HW-EL231H D2HW-C231H Molded lead wires Downwards SPDT D2HW-BL231M D2HW-EL231M D2HW-C231M SPST-NC D2HW-BL232M D2HW-EL232M D2HW-C232M SPST-NO D2HW-BL233M D2HW-EL233M D2HW-C233M Right-side SPST-NC D2HW-BL232MR D2HW-EL232MR D2HW-C232MR SPST-NO D2HW-BL233MR D2HW-EL233MR D2HW-C233MR Left-side SPST-NC D2HW-BL232ML D2HW-EL232ML - SPST-NO D2HW-BL233ML D2HW-EL233ML - Hinge roller lever Solder SPDT D2HW-BL241H D2HW-EL241H D2HW-C241H Molded lead wires Downwards SPDT D2HW-BL241M D2HW-EL241M D2HW-C241M SPST-NC D2HW-BL242M D2HW-EL242M D2HW-C242M SPST-NO D2HW-BL243M D2HW-EL243M D2HW-C243M Right-side SPST-NC D2HW-BL242MR D2HW-EL242MR D2HW-C242MR SPST-NO D2HW-BL243MR D2HW-EL243MR D2HW-C243MR Left-side SPST-NC D2HW-BL242ML D2HW-EL242ML - SPST-NO D2HW-BL243ML D2HW-EL243ML - Straight leaf lever Solder SPDT D2HW-BL251H D2HW-EL251H D2HW-C251H Molded lead wires Downwards SPDT D2HW-BL251M D2HW-EL251M D2HW-C251M SPST-NC D2HW-BL252M D2HW-EL252M D2HW-C252M SPST-NO D2HW-BL253M D2HW-EL253M D2HW-C253M Right-side SPST-NC D2HW-BL252MR D2HW-EL252MR D2HW-C252MR SPST-NO D2HW-BL253MR D2HW-EL253MR D2HW-C253MR Left-side SPST-NC D2HW-BL252ML D2HW-EL252ML - SPST-NO D2HW-BL253ML D2HW-EL253ML - Leaf lever Solder SPDT D2HW-BL261H D2HW-EL261H D2HW-C261H Molded lead wires Downwards SPDT D2HW-BL261M D2HW-EL261M D2HW-C261M SPST-NC D2HW-BL262M D2HW-EL262M D2HW-C262M SPST-NO D2HW-BL263M D2HW-EL263M D2HW-C263M Right-side SPST-NC D2HW-BL262MR D2HW-EL262MR D2HW-C262MR SPST-NO D2HW-BL263MR D2HW-EL263MR D2HW-C263MR Left-side SPST-NC D2HW-BL262ML D2HW-EL262ML - SPST-NO D2HW-BL263ML D2HW-EL263ML - Simulated roller leaf lever Solder SPDT D2HW-BL271H D2HW-EL271H D2HW-C271H Molded lead wires Downwards SPDT D2HW-BL271M D2HW-EL271M D2HW-C271M SPST-NC D2HW-BL272M D2HW-EL272M D2HW-C272M SPST-NO D2HW-BL273M D2HW-EL273M D2HW-C273M Right-side SPST-NC D2HW-BL272MR D2HW-EL272MR D2HW-C272MR SPST-NO D2HW-BL273MR D2HW-EL273MR D2HW-C273MR Left-side SPST-NC D2HW-BL272ML D2HW-EL272ML - SPST-NO D2HW-BL273ML D2HW-EL273ML - Long leaf lever Solder SPDT D2HW-BL281H D2HW-EL281H D2HW-C281H Molded lead wires Downwards SPDT D2HW-BL281M D2HW-EL281M D2HW-C281M SPST-NC D2HW-BL282M D2HW-EL282M D2HW-C282M SPST-NO D2HW-BL283M D2HW-EL283M D2HW-C283M Right-side SPST-NC D2HW-BL282MR D2HW-EL282MR D2HW-C282MR SPST-NO D2HW-BL283MR D2HW-EL283MR D2HW-C283MR Left-side SPST-NC D2HW-BL282ML D2HW-EL282ML - SPST-NO D2HW-BL283ML D2HW-EL283ML -

D2HW Sealed Ultra Subminiature Basic Switch D H W Contact form Contact Specifications Ratings Note. The above rating values apply under the following test conditions. (1) Ambient temperature: 20±2°C (2) Ambient humidity: 65±5 % (3) Operating frequency: 30 operations/min Approved Safety Standard Consult your OMRON sales representative for specific models with standard approvals. UL (UL1054/CSA C22.2 No.55) Characteristics Note. The data given above are initial values. *1. For the pin plunger models, the abov e values apply for use at the free position, operating position, and total travel position. For the lever models, they apply at the total travel position. Close or open circuit of the contact is 1ms max. *2. For testing conditions, consult your OMRON sales representative.

• SPDT ● SPST-NC, (Molded Lead Wire Models Only)
• SPST-NO, (Molded Lead Wire Models Only) COM (Black) NO (Blue) NC (Red) COM (Black) NC (Red) COM (Black) NO (Blue) Molded lead wire colors are indicated in parentheses. Contact Specification Crossbar Material Gold alloy Gap (standard value) 0.5 mm Minimum applicable load (see note) 5 VDC 1mA Rated voltage Resistive load 125 VAC 0.1A

12 VDC

24 VDC

42 VDC

0.5A Model D2HW Rated voltage Item Resistive load 125 VAC 0.1A

12 VDC 2A

24 VDC 1A

42 VDC 0.5A Permissible operating speed 1 mm to 500 mm/s (for pin plunger models) Permissible operating frequency 30 operations/min Insulation resistance 100 MΩ min. (at 500 VDC with insulation tester) Contact resistance (initial value) Terminals 100 mΩ max. Molded lead wire models 150 mΩ max. Dielectric strength Between terminals of the same polarity

600 VAC 50/60 Hz 1min

1,500 VAC 50/60 Hz 1 min Between terminals and non-current-carrying metal parts 1,500 VAC 50/60 Hz 1 min Vibration resistance * 1 Malfunction 10 to 55 Hz, 1.5 mm double amplitude Shock resistance Durability 1,000 m/s2 {approx. 100G} max. Malfunction * 1 300 m/s2 {approx. 30G} max. Durability * 2 Mechanical 1,000,000 operations min. (30 operations/min) Electrical 100,000 operations min. (20 operations/min) Degree of protection Terminals IEC IP67 (excluding the terminals on terminal models) molded lead wire models IEC IP67 Ambient operating temperature -40 to +85°C (at ambient humidity of 60% max.) (with no icing or condensation) Ambient operating humidity 95% max. (for +5 to +35°C) Weight Approx. 0.7 g (for pin plunger models with terminals)

D2HW Sealed Ultra Subminiature Basic Switch D H W Mounting Structure and Reference Positions for Operating Characteristics (Unit: mm) Note. The reference positions used for Free Position (FP), Operating Position (OP), and Total Travel Position (TTP) values are as shown above for each type of mounting.

• Without posts D2HW-A@
• Long post D2HW-B@ Mounting Hole Dimensions (Reference)
• M3-screw Mounting Models D2HW-C@ Mounting Hole Dimensions (Reference)
• Short post D2HW-E@ FP OPTTP 7 Standard Position 1.7 dia. 13.3 5.3 FP OPTTP 3 6.5 8±0.1 1.7 dia. Standard Position 13.3 5.3 2.6±0.05 5ç0 ɹ-0.2 8±0.1 2.6 2.4+0.1 ɹɹ 0 2.4+0.1 dia. holes0 (depth: D2HW-E@: 1.5 mm min. D2HW-B@: 5 mm min.) FP OP 2.65 13±0.1 TTP 3.1+0.13 -0.03 6 6.5Standard Position 3.3±0.15 dia. 18.5 1.5 0 -0.11.5 0 -0.1 3 0 dia.-0.1 5.3 13±0.1 M3 Tap 3+0.1 dia. holes0 (depth: 1.5 mm min.) FP OPTTP 3 6.5 8±0.1 1.7 dia. 13.3 5.3 2.6±0.05 1.5 +0 -0.2

D2HW Sealed Ultra Subminiature Basic Switch D H W Terminals/Appearances (Unit: mm)

• PCB terminals (Straight) <PCB Mounting Dimensions (Reference)>
• PCB Terminals (Left-angled) <PCB Cutout Dimensions (Reference)>
• PCB terminals (Right-angled)
• Solder terminals
• Molded Lead Wires on Left-side ●Molded Lead Wires on Right-side ●Molded Lead Wires Downwards 5.08 5.08 3-0.6 2.5 0.5 5.08±0.1 5.08±0.1 3-1+0.1 dia. holes0 5.08 5.08 3-0.6 0.5 ʢ3.1ʣ 5.08±0.1 5.08±0.1 2.6 2.4+0.1 dia. holes0 (depth: 5 mm min.) 8±0.1 6±0.1 2.4+0.1 ɹɹ 0 3-1+0.1 dia. holes0 5.08 5.08 3-0.6 0.5 ʢ3.1ʣ 1.8 4.38 1.2 3-2 3.5 0.5 4.38 ʢ5ʣ 300±10 ʢ13.3ʣ ʢ12ʣ COM AVSS 0.5 (Black)* NC AVSS 0.5 (Red) or NO AVSS 0.5 (Blue) UL approved wires (AWG24, UL1007) are used for UL/CSA standard approved items. 300±10ʢ13.3ʣ ʢ12ʣ ʢ5ʣ COM AVSS 0.5 (Black) NC AVSS 0.5 (Red)* Or NO AVSS 0.5 (Blue) UL approved wires (AWG24, UL1007) are used for UL/CSA standard approved items. 300±10 ʢ12ʣ COM AVSS 0.5 (Black)* NO AVSS 0.5 (Blue) NC AVSS 0.5 (Red) ʢ5ʣ UL approved wires (AWG24, UL1007) are used for UL/CSA standard approved items.

D2HW Sealed Ultra Subminiature Basic Switch D H W Dimensions (Unit: mm) /Operating Characteristics The following illustrations and drawings are representative models. When ordering, replace @ with the code for the mounting structure, contact form and terminal that you need. See the "■List of Models" for available combinations of appearances. Refer to page 3 to 4 for the mounting structures and terminal forms. Note1. Unless otherwise specified, a tolerance of ±0.2mm applies to all dimensions. Note2. The operating characteristics are for operation in the A direction ( ). 1.7 dia. FP OP TTP 7 5.3 A

• Pin plunger D2HW-@20@@ Operating characteristics Type Without posts Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 0.75N {76 gf} 0.10N {10 gf} Overtravel OT Movement Differential MD Max. 1.4 mm (reference value) 0.25 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 11.2 mm 10.4±0.2 mm 9.1 mm 7.2 mm 6.4±0.2 mm 5.1 mm
• Hinge Lever D2HW-@21@@ Operating characteristics Type Without posts Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 0.75N {76 gf} 0.07N {7 gf} Overtravel OT Movement Differential MD Max. 1.6 mm (reference value) 0.5 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 12.8 mm 11.5±0.5 mm 10 mm 8.8 mm 7.5±0.5 mm 6 mm FP OP TTP 7ʢ0.4ʣ 13 t0.3 Stainless-steel lever ʢ1.15ʣ 3.4A Operating characteristics Type Without posts Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 0.5N {50 gf} 0.03N {3 gf} Overtravel OT Movement Differential MD Max. 2.5 mm (reference value) 0.8 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 15.5 mm 13.3±0.8 mm 11 mm 11.5 mm 9.3±0.8 mm 7 mm FP OP TTP 7ʢ0.4ʣ 20 t0.3 Stainless-steel lever ʢ1.15ʣ 3.4A
• Long Hinge Lever D2HW-@22@@
• Simulated Roller Lever D2HW-@23@@ Operating characteristics Type Without posts Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 0.65N {66 gf} 0.05N {5 gf} Overtravel OT Movement Differential MD Max. 1.9 mm (reference value) 0.5 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 16.5 mm 15.2±0.5 mm 13.5 mm 12.5 mm 11.2±0.5 mm 9.5 mm FP OP TTP 7ʢ0.4ʣ t0.3 Stainless-steel lever ʢ1.15ʣ 3.4A
• Hinge Roller Lever D2HW-@24@@ Operating characteristics Type Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 0.65N {66 gf} 0.03N {3 gf} Overtravel OT Movement Differential MD Max. 1.9 mm (reference value) 0.6 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 15.3 mm 14±0.6 mm 12.3 mm 8±0.1 TTP FP OP t0.3 Stainless-steel lever 4.8×2.8 dia. Polyacetal resin roller ʢ4.6ʣA ʢ0.4ʣ ʢ1.15ʣ 6.5

D2HW Sealed Ultra Subminiature Basic Switch D H W Note1. Unless otherwise specified, a tolerance of ±0.2mm applies to all dimensions. Note2. The operating characteristics are for operation in the A direction ( ).

• Leaf straight lever D2HW-@25@@ Operating characteristics Type Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 1.2N {122 gf} 0.05N {5 gf} Overtravel OT Movement Differential MD Max. 2.5 mm (reference value) 0.7 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 11.9 mm 8.1±0.8 mm 6.0 mm FP OPTTP 3 6.5 8±0.1 1.7 dia. 13.3 5.3 2.6±0.05 1.5 +0 -0.2
• Leaf Lever D2HW-@26@@ Operating characteristics Type Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 1.8N {183 gf} 0.20N {20 gf} Overtravel OT Movement Differential MD Max. 1.8 mm (reference value) 0.5 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 9.3 mm 7.4±0.5 mm 5.8 mm ʢ1.7ʣ 6.5 TTP 8±0.1 FP OP 2.65 t0.3 Stainless-steel lever 3.4A
• Simulated Roller Lever D2HW-@27@@ Operating characteristics Type Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 1.8N {183 gf} 0.20N {20 gf} Overtravel OT Movement Differential MD Max. 2.0 mm (reference value) 0.5 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 13.0 mm 10.8±0.5 mm 8.9 mm 162.65 ʢ1.7ʣ 3.4 6.5 R2 t0.3 Stainless-steel lever FP OP TTP 8±0.1 A
• Long Leaf Lever D2HW-@28@@ FP OP TTP 18.5 2.65 ʢ13.3ʣ 13±0.1 20.85±1 3.3±0.15 dia. t0.2 Stainless-steel lever ʢ12ʣ 300±10 3.1+0.13 -0.03 3 0 dia.-0.1 1.5 0 -0.11.5 0 -0.1 5.3 ʢ5ʣ COM AVSS 0.5 (Black) NO AVSS 0.5 (Blue) NC AVSS 0.5 (Red) A UL approved wires (AWG24, UL1007) are used for UL/CSA standard approved items. Operating characteristics Type Models with Posts M3-screw Mounting Models Operating Force OF Max. Releasing Force RF Min. 0.9N {92 gf} 0.05N {5 gf} Overtravel OT Movement Differential MD Max. 2.8 mm (reference value) 0.7 mm Free Position FP Max. Operating Position OP Total Travel Position TTP Max. 19 mm 15.4±1.5 mm 12.8 mm

D2HW Sealed Ultra Subminiature Basic Switch D H W Precautions ★Please refer to "General Information" for correct use.

• Degree of Protection
• Do not use this product underwater. Although molded lead wire models satisfy the test conditions for the standard given below, this test is to check the ingress of water into the switch enclosure after submerging the Switch in water for a given time. Satisfying this test condition does not mean that the Switch can be used underwater. JIS C0920: Degrees of protection provided by enclosures of electrical apparatus (IP Code) IEC 60529: Degrees of protection provided by enclosures (IP Code) Degree of protection: IP67 (check water intrusion after immersion for 30 min. submerged 1m underwater)
• Do not operate the Switch when it is exposed to water spray, or when water drops adhere to the Switch surface, or during sudden temperature changes, otherwise water may intrude into the interior of the Switch due to a suction effect.
• Prevent the Switch from coming into contact with oil and chemicals. Otherwise, damage to or deterioration of Switch materials may result.
• Do not use the Switch in areas where it is exposed to silicon adhesives, oil, or grease. Otherwise faulty contact may result due to the generation of silicon oxide.
• Soldering When soldering the lead wire to the terminal, first insert the lead wire conductor through the terminal hole and then conduct soldering. Make sure that the temperature of the soldering iron tip does not exceed 300°C, and complete the soldering within 3 seconds. Do not apply any external force for 1 minute after soldering. Soldering at an excessively high temperature or soldering for more than 3 seconds may deteriorate the characteristics of the Switch. In case of automatic soldering, please do not apply the heat beyond 260°C within 5 seconds. Pay careful attention so that flux or solder liquid does not flow over the edge of the PCB panel.
• Side-actuated (Cam/Dog) Operation
• When using a cam or dog to operate the Switch, factors such as the operating speed, operating frequency, push-button indentation, and material and shape of the cam or dog will affect the durability of the Switch. Confirm performance specifications under actual operating conditions before using the Switch in applications.
• Mounting
• Turn OFF the power supply before mounting or removing the Switch, wiring, or performing maintenance or inspection. Failure to do so may result in electric shock or burning.
• For M3-screw mounting models, use M3 mounting screws with plane washers or spring washers to securely mount the Switch. Tighten the screws to a torque of 0.27 to 0.29 N·m {27.5 to 29.5 gf}. Exceeding the specified torque may result in deterioration of the sealing or damage.
• For models with posts, secure the posts by thermal caulking or by pressing into an attached device. When pressed into an attached device, provide guides on the opposite ends of the posts to ensure that they do not fall out or rattle. Thermal caulking conditions varies according to the equipment, jig and base used for switch mounting. Consult your OMRON sales representative for details.
• Operating Body
• Use an operating body with low frictional resistance and of a shape that will not interfere with the sealing rubber, otherwise the plunger may be damaged or the sealing may deteriorate.
• Handling
• Do not handle the Switch in a way that may cause damage to the sealing rubber.
• When handling the Switch, ensure that pressure is not applied to the posts in the directions shown in the following diagram. Also, ensure that uneven pressure or pressure in a direction other than the operating direction is not applied to the Actuator as shown in the following diagram. Otherwise, the post, Actuator, or Switch may be damaged, or the service life may be reduced.
• Wiring Molded Lead Wire Models
• When wiring molded lead wire models, ensure that there is no weight applied on the wire or that there are no sharp bends near the parts where the wire is drawn out. Otherwise, damage to the Switch or deterioration in the sealing may result.
• Using Micro Loads
• Even when using micro load models within the operating range shown below, if inrush/surge current occurs, it may increase the contact wear and so decrease durability. Therefore, insert a contact protection circuit where necessary. Cautions Correct Use

D2HW Sealed Ultra Subminiature Basic Switch D H W  Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.  Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or equipment, and be sure to provide the system or equipment with double safety mechanisms. Cat. No. B105-E1-08 0517(0207)(O) Note: Do not use this document to operate the Unit. OMRON Corporation Electronic and Mechanical Components Company Contact: www.omron.com/ecb