Series 73Mx Current Sensing Resistors ? Metal Plate

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Series 73Mx Current Sensing Resistors ? Metal Plate

Product catalog summary

Features

Very low resistance suitable for applications like current limiting, detection, motor control, power supply, and hard disk drives.
High precision and accuracy in current detection.
Good electrical characteristics with a surface mount package.
Nickel barrier solder-coated pads, reflow capable up to 260°C as per JEDEC J-STD-020.
Available in tape and reel packaging, RoHS/Green compliant.

Ordering Information

Part numbers are continuous without dashes or spaces.
Examples include 73M1R005F (5m Ohms, ±1%) and 73M1R100G (100m Ohms, ±2%).
Resistor codes use 'R' to indicate the decimal point, e.g., R005 for 5m Ohms.

Standard Resistor Values

Based on EIA E24 sequence, values range from 0.003Ω to 0.100Ω with corresponding codes like R003, R100, etc.

Electrical Characteristics

Rated wattage options: 1W (73M1) and 2W (73M2).
Resistance range: 0.003Ω to 0.100Ω with tolerances of ±1% or ±2%.
Temperature coefficient of resistance (T.C.R) varies with resistance value, e.g., ±300 ppm/°C for 0.003Ω ≤ R < 0.005Ω.
Operating temperature range: -55°C to +180°C, rated ambient temperature at +70°C.

Mechanical Specification

Dimensions for 73M1: L = 6.2mm, W = 3.1mm, T = 1.0mm.
Dimensions for 73M2: L = 6.4mm, W = 3.5mm, T = 1.2mm max.
Recommended land pattern dimensions provided for both types.

Packaging Information

Embossed tape dimensions for 73M1 and 73M2 provided, with specific measurements for A, B, F, L, M, and J.
Reel quantity is 1,000 units per reel for both types, with a reel dimension of 15.4mm ±1.0mm.

Catalog excerpts

Series 73Mx Current Sensing Resistors ? Metal Plate-1

Current Sensing Resistors – Metal Plate FEATURES • Very Low Resistance • Suitable for Current Limiting, Current Detection, Motor Control, Power Supply and Hard Disk Drives • High Precision and Excellent Accuracy for Current Detection • Good Electrical Characteristics • Surface Mount Package • Nickel Barrier Solder-Coated Pads [e3] • Reflow capable per JEDEC J-STD-020, 260°C maximum • Tape and Reel Packaging • RoHS/Green Compliant (6/6) TYPE 1 = 1 Watt Rating 2 = 2 Watt Rating RESISTOR CODE Notes: 1. No dashes or spaces to appear in part number. 4-Digit Resistor Code "R" indicates decimal point.

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Series 73Mx Current Sensing Resistors ? Metal Plate-2

Current Sensing Resistor – Metal Plate ELECTRICAL CHARACTERISTICS Type Rated Wattage (Watts) Rated Ambient Temperature Operating Temperature Range MECHANICAL SPECIFICATION PACKAGE DRAWING Dimensions (mm) 73M1 73M2 RECOMMENDED LAND PATTERN A

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Series 73Mx Current Sensing Resistors ? Metal Plate-3

Current Sensing Resistor – Metal Plate PACKAGING INFORMATION EMBOSSED TAPE [mm]

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