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431 Page 1 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ©2003 TELEDYNE RELAYS

www.teledynerelays.com 431/1203/Q1 ESTABLISHED RELIABILITY SERIES 431ESTABLISHED RELIABILITY TO-5 RELAYS SENSITIVE SPDT

DESCRIPTION

The TO-5 relay, originally conceived and developed by Teledyne, has become one of the industr y standards for low-level switching from dry circuit to 1 ampere. Designed for high-density PC board mounting, its small size and low coil power dissipation make the 431 relay one of the most versatile ultraminiature relays available. The following unique construction features and manufacturing techniques provide excellent resistance to environmental extremes and overall high reliability.

  • All welded construction.
  • Unique uni-frame design, providing high magnetic efficiency and mechanical rigidity.
  • High force/mass ratios for resistance to shock and vibration.
  • Advanced cleaning techniques provide maximum assurance of internal cleanliness.
  • Precious metal alloy contact material with gold plating assures excellent high current and dry circuit switching capabilities. The Series 431D and 431DD relays have internal discrete silicon diodes for coil suppression and polarity reversal protection. The hybrid 431T relay features an internal silicon suppression diode and transistor driver. This hybrid package reduces required PC board floor space by reducing the number of external components needed to drive the relay. By virtue of its inherently low intercontact capacitance and contact circuit losses, the 431 relay has proven to be an excellent ultraminiature RF switch for frequency ranges well into the UHF spectrum. A typical RF application for the TO-5 relay is in handheld radio transceivers, wherein the combined features of good RF performance, small size, low coil power dissipation and high reliability make it a preferred method of T -R switching (see Figure 1). INTERNAL CONSTRUCTION SERIES DESIGNATION RELAY TYPE

431 SPDT basic relay

431D SPDT relay with internal diode for coil suppression 431DD SPDT relay with internal diodes for coil transient suppression and polarity reversal protection 431T SPDT relay with internal transistor driver and coil transient suppression diode UPPER STATIONARY CONTACT LOWER STATIONARY CONTACT MOVING CONTACT UNI-FRAME ARMATURE ENVIRONMENTAL AND PHYSICAL SPECIFICATIONS Temperature (Ambient) –65°C to +125°C Vibration (General Note 1) 30 g’s to 3000 Hz Shock (General Note 1) 75 g’s, 6 msec, half-sine Acceleration 50 g’s Enclosure Hermetically sealed Weight 0.109 oz. (3.09g) max.

431 Page 3 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ©2003 TELEDYNE RELAYS

www.teledynerelays.com 431/1203/Q1 ESTABLISHED RELIABILITY DIMENSIONS ARE SHOWN IN INCHES (MILLIMETERS) .370 (9.40) DIA. MAX. .335 (8.51) DIA. MAX. .375 (9.52) MAX. .035 (.89) ± .010 (0.25) 45°± 3° TYP. CASE DETAIL .031 (.79) ± .003 (0.08) .200 (5.08) ± .010 (.25) DIA. WIRE LEAD: .75 (19.05) MIN. (See Note 6) LEAD & PIN LOCATIONS (Viewed from Terminals)

5 LEADS 36°± 3°

TYP. 8 LEADS PIN NUMBERS (For reference only) 431T 431431, 431D, 431DD 431T SERIES 431 OUTLINE DIMENSIONS GENERAL NOTES 1. Relay contacts will exhibit no chatter in excess of 10 μsec or transfer in excess of 1 μsec. 2. “Typical” characteristics are based on available data and are best estimates. No on-going verification tests are performed. 3. Unless otherwise specified, parameters are initial values. 4. For reference only. Coil resistance not directly measurable at relay terminals due to internal series semiconductor. 431DD and 431T only. 5. Unless otherwise specified, relays will be supplied with either gold-plated or solder-coated leads. 6. The slash and characters appearing after the slash are not marked on the relay. 7. Limit Base Emitter current to 15 mAdc. 8. Applicable to all coil voltages. See Base current to turn on. 9. Screened HI-REL versions available. Contact factory. 10. SCHEMATICS ARE VIEWED FROM TERMINALS 431 431D 431T 431DD Vcc Vr Notes: Logic 1 activates the relay. Logic 0 de-activates the relay. Vcc = logic bias power. Vr = coil energization voltage. Pin 2 Pin 3 Pin 1 Pin 4 Logic element 1 = 0.20 to 1.20mA 0 = 0.3Vdc min. SCHEMATIC DIAGRAMS TYPICAL LOGIC INTERFACE (See Note 8) Teledyne Part Numbering System for T2R® Established Reliability Relay ER 431 Y M3 - 26 A / S Q Established Reliability Designator Pad Option (See Appendix) Relay Series Optional Ground Pin (See Appendix) Q= Solder Coated Leads G= Gold Plated Leads (Notes 5 and 6) S= .187" leads (Note 6) Coil Voltage Screening and Reliability Level Teledyne Part Numbering System for Military Qualified (JAN) Relays J 431 M3 - 26 P L Military (JAN) Designator Pad Option (See Appendix) Relay Series Terminal Variant P = 0.187" Coil Voltage Screening and Reliability Level

bottom view dimensions Height For use with the following: Dim. H Max. “M4” Pad for TO-5 ER411T ER412, ER412D, ER412DD .295 (7.49) 712, 712D, 712TN, RF300, RF310, RF320 .300 (7.62) ER420, ER422D, ER420DD, 421, ER421D, ER421DD, ER422, ER422D, ER422DD, 722, 722D, RF341 .305 (7.75) ER431T, ER432T, ER432, ER432D, ER432DD .400 (10.16) 732, 732D, 732TN, RF303, RF313, RF323 .410 (10.41) RF312 .350 (8.89) “M4” Pad for TO-5 ER411, ER411D, ER411DD .295 (7.49) ER431, ER431D, ER431DD .400 (10.16) RF311 .300 (7.62) RF331 .410 (10.41) “M4” Pad for Centigrid® 172, 172D .305 (7.75) ER114, ER114D, ER114DD, J114, J114D, J114DD .300 (7.62) ER134, ER134D, ER134DD, J134, J134D, J134DD .400 (10.16) RF100 .315 (8.00) RF103 .420 (10.67) “M9” Pad for Centigrid® 122C, A152 .320 (8.13) ER116C, J116C .300 (7.62) ER136C, J136C .400 (10.16) RF180 .325 (8.25) A150 .305 (7.75) Notes: 1. Spacer pad material: Polyester /g191 lm. 2. To specify an “M4” or “M9” spacer pad, refer to the mounting variants portion of the part numbering example in the applicable datasheet. 3. Dimensions are in inches (mm). 4. Unless otherwise speci/g191 ed, tolerance is ± .010 (.25). 5. Add 10 m/g525 to the contact resistance show in the datasheet. Ø.150 [3.81] (REF) Dim H MAX Dim H MAX Dim H MAX .156 [3.96] (REF) .256 [6.5] (REF) Dim H MAX Appendix A: Spacer Pads © 2008 Teledyne Relays SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

bottom view dimensions Height For use with the following: Dim. H Max. “M” Pad 5/ 6/ ER411T, J411T, ER412, ER412D ER412DD, J412, J412D, J412DD ER412T, J412T .388 (9.86) 712, 712D, 712TN .393 (9.99) ER431T, J431T, ER432, ER432D ER432DD, J432, J432D, J432DD ER432T, J432T .493 (12.52) 732, 732D, 732TN .503 (12.78) ER420, J420, ER420D, J420D ER420DD, J420DD, ER421, J421 ER421D, J421D, ER421DD J422D, ER422DD, J422DD, 722 .398 (10.11) “M2” Pad 7/ 8/ ER411T ER412, ER412D, ER412DD J412, J412D, J412DD .441 (11.20) 712, 712D .451 (11.46) ER421, ER421D, ER421DD 722, 732D .451 (11.46) ER431T ER432, ER432D, ER432DD .546 (13.87) 732, 732D .556 (14.12) “M3” Pad 5/ 6/ 9/ ER411, ER411D, ER411DD ER411TX ER412X, ER412DX, ER412DDX ER412TX .388 (9.86) 712X, 712DX, 712TNX .393 (9.99) ER420X, ER420DX, ER420DDX ER421X, ER421DX, ER421DDX ER422X, ER422DX ER422DDX, 722X, 722DDX .398 (10.11) ER431, ER431D, ER431DD ER431TX ER432X, ER432DX, ER432DDX ER432TX .493 (12.52) 732X, 732DX, 732TNX .503 (12.78) Notes: 1. Spreader pad material: Diallyl Phthalate. 2. To specify an “M”, “M2” or “M3” spreader pad, refer to the mounting variants portion of the part number example in the applicable datasheet. 3. Dimensions are in inches (mm). 4. Unless otherwise speci/g191 ed, tolerance is ± .010” (0.25). 5/. Add 25 m/g525 to the contact resistance shown in the datasheet. 7/. Add 50 m/g525 to the contact resistance shown in the datasheet. 8/. Add 0.025 oz (0.71 g) to the weight of the relay assembly shown in the datasheet. 9/. M3 pad to be used only when the relay has a center pin (e.g. ER411M3-12A, 722XM3-26.) .370 [9.4] MAX SQ .150 [3.81] .100 [2.54] .200 [5.08] .300 [7.62] .100 [2.54] Dim H MAX .370 [9.4] MIN .014 [0.36] (REF) .390 [9.91] SQ .300 [7.62] .100 [2.54] .300 [7.62] .100 [2.54] .150 [3.81] .150 [3.81] .130 [3.3] Dim H MAX .370 [9.4] MAX SQ .150 [3.81] .100 [2.54] .200 [5.08] .300 [7.62] .100 [2.54] Dim H MAX .370 [9.4] MIN .014 [0.36] (REF) Appendix A: Spreader Pads (800) 284-7007 • www.teledynerelays.com /g391 +44 (0) 1236 453124 • www.teledyne-europe.com © 2008 Teledyne Relays

.100 [2.54] .100 [2.54] .100 [2.54] "Y" POSITION "Z" POSITION .100 [2.54] .100 [2.54] .100 [2.54] "W" POSITION "U" POSITION (ER116C and ER136C only) "X" POSITION "Z" POSITION "Y" POSITION .050 [1.27] 36°±3° Ø.200 [Ø5.08] "Z" POSITION "Y" POSITION "X" POSITION 45°±3° "Z" POSITION "Y" POSITION Ø.200 [Ø5.08] Centigrid® Relays: RF100, RF103, ER114, ER134, 172 Centigrid® Relays: RF180, ER116C, 122C, ER136C TO-5 Relays: ER411T, ER412, ER412T, ER420, ER421, ER422, ER431T, ER432, ER432T, 712, 712TN, 400H, 400K, 400V , RF300, RF303, RF341, RF312, RF310, RF313, RF320, RF323 TO-5 Relays: ER411, ER431, RF311, RF331 NOTES 1. Terminal views shown 2. Dimensions are in inches (mm) 3. Tolerances: ± .010 (±.25) unless otherwise speci/g191 ed 4. Ground pin positions are within .015 (0.38) dia. of true position Indicates ground pin position Indicates glass insulated lead position Indicates ground pin or lead position depending on relay type Appendix A: Ground Pin Positions © 2008 Teledyne Relays SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE