SR731HTTC3R60F Equivalent & Substitute Parts

Part Overview

The SR731HTTC3R60F is a 3.6 Ohms ±1% 0.1W thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package. This component is designed for current sensing applications in automotive environments and meets AEC-Q200 qualification standards. The part is classified as "Not For New Designs," indicating that it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary to support existing inventory management, legacy system maintenance, and design continuity for applications currently utilizing this component.

Substiute Parts

SR731HTTC3R60F

KOA Speer Electronics, Inc.In Stock: 1107SR731HTTC3R60F Datasheet

Current PartRFQ

SR731HTTCM3R60F

KOA Speer Electronics, Inc.In Stock: 1054SR731HTTCM3R60F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SR731HTTC3R60F is determined by strict equivalence across the following critical parameters:

• Resistance Value: 3.6 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.1W / 1/10W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: 0 / +400ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Automotive Qualification: AEC-Q200 (exact match required)
• Application Classification: Current Sense (exact match required)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected (exact match required)

Substitute parts must satisfy all parameters listed above without exception. Parts differing in any of these specifications are not electrically or mechanically equivalent and cannot be used as direct replacements.

Parameter Comparison

Engineering Selection Recommendations

The SR731HTTCM3R60F is the direct equivalent substitute for the SR731HTTC3R60F. Both components are manufactured by KOA Speer Electronics, Inc. within the SR73 series and satisfy identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product status: the SR731HTTC3R60F is designated "Not For New Designs," while the SR731HTTCM3R60F carries "Active" status. This indicates that the SR731HTTCM3R60F represents the current production equivalent and is the appropriate selection for ongoing applications requiring this 3.6 Ohms ±1% current sense resistor in the 0201 package.

Both parts maintain full compliance with AEC-Q200 automotive qualification, ROHS3 environmental standards, and REACH regulatory requirements. The electrical performance, thermal characteristics, and mechanical dimensions are identical, ensuring direct functional interchangeability in all circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the SR731HTTCM3R60F be used as a direct replacement for the SR731HTTC3R60F?

A: Yes. The SR731HTTCM3R60F is electrically and mechanically equivalent to the SR731HTTC3R60F. All critical parameters including resistance value, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range are identical. The substitute part is suitable for direct replacement in existing designs.

Q: What is the significance of the "Not For New Designs" status on the SR731HTTC3R60F?

A: This designation indicates that the SR731HTTC3R60F has been superseded in the manufacturer's product line. The SR731HTTCM3R60F is the active equivalent. For new circuit designs, the SR731HTTCM3R60F should be specified. For legacy systems currently using the SR731HTTC3R60F, the SR731HTTCM3R60F provides continued component availability.

Q: Are there any differences in the physical package between these two parts?

A: No. Both parts use the 0201 (0603 Metric) package with identical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are mechanically interchangeable on printed circuit boards.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the SR731HTTC3R60F and SR731HTTCM3R60F are qualified to AEC-Q200 standards, confirming suitability for automotive applications. Both maintain identical operating temperature ranges of -55°C ~ 125°C and temperature coefficient specifications of 0 / +400ppm/°C.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications. Regulatory and environmental compliance is equivalent.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts carry Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements. No special storage or handling precautions are necessary.

Q: Can these parts be used interchangeably in current sensing circuits?

A: Yes. Both parts are classified for current sense applications and carry identical electrical specifications. The 3.6 Ohms ±1% resistance value and 0.1W power rating are maintained across both components, ensuring equivalent performance in current sensing circuits.