CSRN2512JKR430 Equivalent & Substitute Parts

Part Overview

The CSRN2512JKR430 is a 430 mOhms ±5% 2W chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This current sense thick film resistor is designed for automotive applications and carries AEC-Q200 qualification. The part is active and in stock, with 1019 units available. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, lead time considerations, or design flexibility needs.

Substiute Parts

CSRN2512JKR430

Stackpole Electronics IncIn Stock: 1106CSRN2512JKR430 Datasheet

Current PartRFQ

RLP73K3AR43FTDF

TE Connectivity Passive ProductIn Stock: 2948RLP73K3AR43FTDF Datasheet

DirectRFQ

RLP73K3AR43JTE

TE Connectivity Passive ProductIn Stock: 7272RLP73K3AR43JTE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSRN2512JKR430 is determined by the following critical parameters:

• Resistance value: 430 mOhms (exact match required)
• Power rating: 2W (exact match required)
• Package type: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match or better required)
• Termination count: 2 (exact match required)
• RoHS and MSL compliance: ROHS3 Compliant, MSL 1 (exact match required)

Tolerance variation is permitted within the substitute group when all other parameters remain constant. The identified substitutes from TE Connectivity Passive Product maintain all critical electrical and mechanical specifications while offering alternative tolerance grades.

Parameter Comparison

Engineering Selection Recommendations

Both TE Connectivity substitutes maintain full compliance with ROHS3 and MSL 1 requirements. RLP73K3AR43FTDF offers improved tolerance specification at ±1%, providing tighter resistance accuracy for applications requiring enhanced precision. RLP73K3AR43JTE matches the original ±5% tolerance specification. Both substitutes are active products with higher inventory availability than the original part. The seated height difference of 0.005" (0.14mm) maximum between the original and substitutes must be evaluated for applications with strict height constraints or automated assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can RLP73K3AR43FTDF be used as a direct replacement for CSRN2512JKR430?

A: Yes. The RLP73K3AR43FTDF maintains identical resistance, power rating, package, composition, temperature coefficient, and operating temperature range. The ±1% tolerance is tighter than the original ±5%, making it suitable for applications where improved accuracy is beneficial or neutral. The maximum seated height is 0.005" (0.14mm) greater than the original.

Q: What is the difference between RLP73K3AR43FTDF and RLP73K3AR43JTE?

A: Both parts are electrically and mechanically equivalent to the CSRN2512JKR430. The primary difference is tolerance: RLP73K3AR43FTDF specifies ±1% while RLP73K3AR43JTE specifies ±5%. Selection depends on circuit accuracy requirements. Both have identical seated height and all other specifications.

Q: Are there any package or footprint compatibility concerns?

A: All three parts use the 2512 (6432 Metric) package with identical length and width dimensions (0.250" x 0.124"). The seated height varies slightly: CSRN2512JKR430 at 0.028" maximum versus 0.033" maximum for both TE Connectivity parts. PCB layout and clearance requirements must accommodate the maximum height specification of the selected part.

Q: Do the substitute parts carry automotive qualification?

A: The CSRN2512JKR430 carries AEC-Q200 qualification. The TE Connectivity substitutes are specified as current sense thick film resistors but do not list AEC-Q200 in the provided specifications. Automotive application requirements must be verified against actual qualification documentation.

Q: What is the impact of tolerance selection on circuit performance?

A: In current sense applications, tolerance directly affects measurement accuracy. The ±1% tolerance of RLP73K3AR43FTDF provides superior accuracy compared to ±5%. Selection should align with the circuit's required current measurement precision and acceptable error margins.