DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 3

Technical content

Document No. 008-0542-0 Page 1 - 3 Rev. A www.ctscorp.com Series 73M1A, 73M2A, 73M3x & 73M5 Current Sensing Resistors – Up To 5W Power

FEATURES

 Metal Plate Construction – Copper Alloy  Power Rating @ +70°C, Options 1 – 5 Watts  Resistance Range, 0.25 – 120 milliohms  Operating Temperature to +155°C  EIA Standard Package Sizes  Terminal Finish – Tin (e3)  Reflow capable per JEDEC J-STD-020, 260°C maximum  Tape and Reel Packaging  RoHS/Green Compliant [6/6]

APPLICATIONS

Ideal for applications such as current detection and limiting, regulated battery circuits, motor control, power supply, hard disk drives, inverter/converter, industrial equipment and automotive.

ORDERING INFORMATION

Notes: 1. No dashes or spaces to appear in part number. 2. Example Part Numbers: 73M2AR0015F [1.5m Ohms, ±1%] 73M3AR00025F [0.25m Ohms, ±1%] 73M3BR050F [50m Ohms, ±1%] 73M5R120F [120m Ohms, ±1%] R73M Not all performance combinations and resistor values may be available. Contact your local CTS Representative or CTS Customer Service for availability. RESISTOR CODE 1A = 1 Watt Rating 2A = 2 Watt Rating 3A = 3 Watt Rating 3B = 3 Watt Rating 5 = 5 Watt Rating TOLERA NCE F = ±1% TYPE 4, 5 or 6-Character Resistor Code "R" indicates decimal point. Ex. R100 = 100m Ohms R0015 = 1.5m Ohms R00025 = 0.25m Ohms Standard Resistance Values [Based on EIA E-24 Sequence] 4, 5, 6-Digit Codes Resistor Value Resistor Code Resistor Value Resistor Code Resistor Value Resistor Code Resistor Value Resistor Code 0.00025Ω R00025 0.0090 Ω R009 0.0300 Ω R030 0.0820 Ω R082 0.00050Ω R0005 0.0100 Ω R010 0.0330 Ω R033 0.0910 Ω R091 0.0010Ω R001 0.0110 Ω R011 0.0360 Ω R036 0.1000 Ω R100 0.0015Ω R0015 0.0120 Ω R012 0.0390 Ω R039 0.1100 Ω R110 0.0020Ω R002 0.0130 Ω R013 0.0430 Ω R043 0.1200 Ω R120 0.0025Ω R0025 0.0150 Ω R015 0.0470 Ω R047 0.0030Ω R003 0.0160 Ω R016 0.0500 Ω R050 0.0040Ω R004 0.0180 Ω R018 0.0510 Ω R051 0.0050Ω R005 0.0200 Ω R020 0.0560 Ω R056 0.0060Ω R006 0.0220 Ω R022 0.0620 Ω R062 0.0070Ω R007 0.0240 Ω R024 0.0680 Ω R068 0.0080Ω R008 0.0270 Ω R027 0.0750 Ω R075

Document No. 008-0542-0 Page 2 - 3 Rev. A Series 73M1A, 73M2A, 73M3x & 73M5 Current Sense Resistor – up to 5W Power

ELECTRICAL CHARACTERISTICS

Rated wattage is the maximum continuous power applicable at ambient temperature from -55°C to +70°C [73M5: -55°C to +105°C]. For ambient temperature above +70°C [+105°C], power rating is in accordance with Derating Curves below. MECHANICAL SPECIFICATION Type Rated Wattage [Watts] Resistance [mΩ] Tolerance [%] T.C.R [ppm/°C] Rated Am bient Temperature Operating Temperature Range R ≥ 0.010Ω: ±50 R < 0.010Ω: ±100 R < 0.010Ω: ±100 R ≥ 0.010Ω: ±50 R ≤ 0.001Ω: ±200 R > 0.001Ω: ±100 R < 0.010Ω: ±100 R ≥ 0.010Ω: ±50 -55°C to +155°C73M1A 1 1 - 50 ±1 +70°C +70°C -55°C to +155°C73M2A 2 1 - 75 ±1 +70°C 73M3A 3 73M3B 3 73M5 5 0.25 - 3 4 - 100 1 - 120 RECOMMENDED LAND PATTERN Type Dimensions [mm] Resistance [mΩ] A B C 2.0 3.5 4.1 - 75 73M3A 7.1 3.8 1.4 0.25 - 1.5 3.4 2.2 2.0 3.2 2.6 2.5 2.9 3.2 3.0 3.4 6.8 5.1 - 120 PACKAGE DRAWING Dimensions [mm] L W t c Resistance [mΩ] 1.3 Max. 2.2 ±0.3 0.25, 0.50 1.4 Max. 1.0 1.3 Max. 1.5 1.2 Max. 1.8 ±0.3 2.0 1.6 ±0.3 2.5 1.3 ±0.3 3.0 1.8 ±0.3 5.1 - 120 73M5 Only NOTES 1. Terminal: Base Metal - Copper [Cu]. Barrier Plating - Nickel [Ni]. Finish Plating – Matte Tin [Sn].

Document No. 008-0542-0 Page 3 - 3 Rev. A Series 73M1A, 73M2A, 73M3x & 73M5 Current Sense Resistor – up to 5W Power PACKAGING INFORMATION EMBOSSED TAPE P0 P2Do 1.55 ±0.05 1.55 ±0.05 Ao B o K o tType W P1 E F REEL [mm] 73M2A 4,000 73M3A 1,000 73M3B 1,000 +2.0 -0.0 16.2 ±0.5 16.2 ±0.5 C 73M5 500 24.4 W 12.0 ±0.5 16.2 ±0.5 DQuantity Per ReelType M A B MARKING Type Rxxx = "R" is the decimal point and 3 digits [E24] are significant values. See resistor tables for codes. Rxxx = "R" is the decimal point and 3 digits [E24] are significant values. See resistor tables for codes. 73M2A 73M3x Rxxx = "R" is the decimal point and 3 digits [E24] are significant values. See resistor tables for codes. Rxxx = "R" is the decimal point and 3 digits [E24] are significant values. See resistor tables for codes. Nominal resistances that includes a decimal point; marking is denoted by "m" expressing a decimal point in milliohms and three digits. Ex. 1m50 [1.5m Ohms] Nominal resistances that includes a decimal point; marking is denoted by "m" expressing a decimal point in milliohms and three digits. Ex. 0m25 [0.25m Ohms] 73M1A Part Marking 73M5