CSR1206JTR120 Equivalent & Substitute Parts

Part Overview

The CSR1206JTR120 is a 120 mOhms ±5% 0.5W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This current sense resistor is designed for precision measurement applications requiring low resistance values with stable performance across industrial temperature ranges. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed tolerance and package parameters.

Substiute Parts

CSR1206JTR120

Stackpole Electronics IncIn Stock: 821CSR1206JTR120 Datasheet

Current PartRFQ

RCWE1206R120FKEA

Vishay DaleIn Stock: 118753RCWE1206R120FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206JTR120 is determined by the following criteria:

Resistance value must be 120 mOhms with tolerance equal to or tighter than ±5%. Package must be 1206 (3216 Metric) with compatible termination count (2 terminations). Power rating must be 0.5W minimum. Composition must be thick film. Temperature coefficient must be ±100ppm/°C or better. Operating temperature range must cover -55°C ~ 155°C minimum. RoHS3 compliance is required. Moisture Sensitivity Level must be 1 or equivalent.

The RCWE1206R120FKEA qualifies as a substitute because it meets all electrical parameters with improved tolerance (±1%), maintains identical package specifications, and provides additional automotive qualification (AEC-Q200) and moisture resistance features without compromising the core application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR1206JTR120 and RCWE1206R120FKEA are Active status components with ROHS3 compliance. The RCWE1206R120FKEA provides tighter tolerance specification (±1% versus ±5%), which may improve measurement accuracy in current sense applications. The RCWE1206R120FKEA includes AEC-Q200 automotive qualification and moisture resistant features, making it suitable for applications requiring enhanced environmental performance. Both parts maintain identical operating temperature ranges and thermal coefficients. Physical dimensions are within standard 1206 package tolerances. Selection between these parts depends on application-specific tolerance requirements and environmental qualification needs.

Frequently Asked Questions (FAQ)

Q: Can RCWE1206R120FKEA directly replace CSR1206JTR120 in existing designs?

A: Yes. Both parts share identical resistance value (120 mOhms), power rating (0.5W), package (1206), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Physical dimensions are within standard 1206 package tolerances. The RCWE1206R120FKEA has tighter tolerance (±1%) and additional automotive qualification.

Q: What is the tolerance difference between these parts?

A: CSR1206JTR120 has ±5% tolerance. RCWE1206R120FKEA has ±1% tolerance. Tighter tolerance in the substitute part provides improved measurement precision in current sense applications.

Q: Are there package compatibility concerns?

A: No. Both parts use 1206 (3216 Metric) package with 2 terminations. Dimensional variations (0.120" vs 0.122" length, 0.061" vs 0.063" width, 0.026" vs 0.028" height) are within standard 1206 package specifications and do not affect PCB footprint compatibility.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control. RCWE1206R120FKEA additionally carries AEC-Q200 automotive qualification.

Q: Is moisture sensitivity a factor in substitution?

A: No. Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity concerns for standard storage and handling conditions.