CSR1206JTR270 Equivalent & Substitute Parts

Part Overview

The CSR1206JTR270 is a 270 mOhms ±5% thick film chip resistor in 1206 package format, rated for 0.5W power dissipation. Designed for current sensing applications, this component is manufactured by Stackpole Electronics Inc and maintains active product status with ROHS3 compliance. Substitute parts may be required due to inventory constraints, application-specific tolerance requirements, or automotive qualification needs in end-use systems.

Substiute Parts

CSR1206JTR270

Stackpole Electronics IncIn Stock: 751CSR1206JTR270 Datasheet

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RCWE1206R270FKEA

Vishay DaleIn Stock: 47509RCWE1206R270FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206JTR270 is determined by strict equivalence across the following critical parameters:

• Resistance value: 270 mOhms (exact match required)
• Package format: 1206 (3216 Metric) with compatible footprint dimensions
• Power rating: 0.5W minimum
• Composition: Thick film construction
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C minimum
• Termination count: 2 terminations
• RoHS3 compliance and MSL 1 rating

The RCWE1206R270FKEA qualifies as a direct substitute based on matching all core electrical and mechanical parameters. Enhanced tolerance (±1% versus ±5%) and automotive AEC-Q200 qualification represent improvements over the original specification without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RCWE1206R270FKEA serves as a qualified substitute for the CSR1206JTR270 in applications requiring direct component replacement. Selection between these parts should be based on the following criteria:

CSR1206JTR270 is appropriate for general-purpose current sensing applications where standard ±5% tolerance meets circuit requirements and tape & reel packaging aligns with production workflows.

RCWE1206R270FKEA is suitable for applications requiring tighter tolerance control (±1%), automotive-grade reliability through AEC-Q200 qualification, or enhanced moisture resistance. The substitute maintains identical electrical performance and thermal characteristics while offering improved precision and environmental robustness.

Both components satisfy ROHS3 compliance and MSL 1 moisture sensitivity requirements. Physical dimensions remain compatible within standard PCB assembly tolerances, with maximum height differences of 0.002" (0.05mm) between seated positions.

Frequently Asked Questions (FAQ)

Q: Can RCWE1206R270FKEA replace CSR1206JTR270 in existing designs?

A: Yes. Both components share identical resistance, power rating, package format, and operating temperature range. The substitute's improved ±1% tolerance and AEC-Q200 qualification provide enhanced performance without requiring circuit redesign.

Q: What is the significance of the ±1% tolerance in the substitute part?

A: The RCWE1206R270FKEA maintains tighter resistance accuracy compared to the ±5% specification of the original part. This reduces circuit parameter variation and improves current sensing measurement precision in applications where tolerance stack-up affects system performance.

Q: Are there physical compatibility concerns between these parts?

A: No. Both components use the 1206 (3216 Metric) package with compatible footprints. Maximum seated height difference is 0.002" (0.05mm), which falls within standard PCB assembly tolerances and does not affect placement or soldering processes.

Q: What does AEC-Q200 qualification mean for the substitute part?

A: AEC-Q200 is an automotive industry standard for passive component reliability. The RCWE1206R270FKEA meets this qualification, making it suitable for automotive applications requiring enhanced quality assurance and failure rate documentation.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that circuit design tolerances accommodate the original ±5% specification. If the design requires ±1% tolerance, the substitute part offers improved performance. Packaging differences (Tape & Reel versus Cut Tape & Digi-Reel) may affect procurement and assembly workflows but do not impact electrical compatibility.