CSR1206JTR430 Equivalent & Substitute Parts

Part Overview

The CSR1206JTR430 is a 430 mOhms ±5% thick film chip resistor in 1206 (3216 Metric) package rated for 0.5W power dissipation. Manufactured by Stackpole Electronics Inc, this current sense resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is active in production with 857 units in current inventory. Substitute parts may be required due to supply constraints, design upgrades for improved tolerance specifications, or automotive qualification requirements.

Substiute Parts

CSR1206JTR430

Stackpole Electronics IncIn Stock: 880CSR1206JTR430 Datasheet

Current PartRFQ

RCWE1206R430FKEA

Vishay DaleIn Stock: 47015RCWE1206R430FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206JTR430 is determined by the following critical parameters:

• Resistance Value: Must be 430 mOhms
• Package Type: Must be 1206 (3216 Metric)
• Power Rating: Must be 0.5W minimum
• Composition: Thick film construction
• Operating Temperature Range: Must support -55°C to 155°C
• Compliance: ROHS3 compliance required

The RCWE1206R430FKEA qualifies as a direct substitute. While it features improved tolerance (±1% versus ±5%), this represents an upgrade that maintains full compatibility. The substitute maintains identical resistance, package, power rating, temperature range, and compliance status. Additional automotive AEC-Q200 qualification and moisture-resistant properties in the substitute provide enhanced reliability without compromising interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The RCWE1206R430FKEA is a qualified substitute for the CSR1206JTR430 based on the following criteria:

• Both parts maintain identical electrical specifications for resistance value, power rating, and operating temperature range
• Package compatibility is confirmed for 1206 (3216 Metric) footprint
• Both parts achieve ROHS3 compliance and unlimited moisture sensitivity rating
• The substitute offers improved tolerance specification (±1% versus ±5%), which represents a performance upgrade without introducing incompatibility
• AEC-Q200 automotive qualification of the substitute provides additional reliability assurance for applications requiring automotive-grade components
• Dimensional variations (0.02" length and 0.002" height differences) remain within standard PCB layout tolerances for 1206 packages

Selection between these parts should be based on application requirements for tolerance precision and automotive qualification status.

Frequently Asked Questions (FAQ)

Q: Can the RCWE1206R430FKEA replace the CSR1206JTR430 in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package type, and operating temperature range. The substitute's improved tolerance and automotive qualification do not create incompatibility with designs specified for the original part.

Q: What is the significance of the tolerance difference between ±5% and ±1%?

A: Tolerance defines the acceptable resistance variation from the nominal 430 mOhm value. The ±1% tolerance of the substitute provides tighter resistance control, which may benefit applications requiring precise current sensing accuracy. The ±5% tolerance of the original part is suitable for general current sense applications where wider tolerance is acceptable.

Q: Are there physical differences that affect PCB layout?

A: Minor dimensional variations exist. The substitute is 0.002" longer and 0.002" taller than the original part. These differences fall within standard 1206 package tolerances and do not require PCB layout modifications.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard for discrete semiconductors. The substitute's AEC-Q200 rating indicates it meets automotive reliability and quality requirements. This qualification is beneficial for automotive applications but does not affect compatibility in non-automotive designs.

Q: Are both parts RoHS compliant?

A: Yes. Both the CSR1206JTR430 and RCWE1206R430FKEA are ROHS3 compliant and meet environmental regulatory requirements.