CSR2512JKR430 Equivalent & Substitute Parts

Part Overview

The CSR2512JKR430 is a 430 mOhms ±5% 2W chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This thick film current sense resistor operates across -55°C to 155°C and is designed for precision current measurement applications. The part is active in production with 968 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

CSR2512JKR430

Stackpole Electronics IncIn Stock: 1050CSR2512JKR430 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

Substitute parts for the CSR2512JKR430 are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 430 mOhms
• Power rating: 2W
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Composition: Thick Film
• Features: Current Sense

Mechanical Parameters (Must Match):

• Package / Case: 2512 (6432 Metric)
• Number of terminations: 2
• Packaging format: Tape & Reel (TR)

Allowed Variation:

• Tolerance: ±5% or tighter (±1% acceptable)
• Physical dimensions: Minor variations within standard 2512 package specifications

The identified substitutes maintain all critical electrical and mechanical parameters while offering alternative tolerance grades or sourcing options from qualified manufacturers.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance. Selection between the CSR2512JKR430 and its substitutes depends on tolerance requirements and sourcing availability.

CSR2512JKR430 (Stackpole Electronics Inc): Use when Stackpole sourcing is preferred or when ±5% tolerance meets application requirements. 968 units currently in stock.

RLP73K3AR43FTDF (TE Connectivity): Use when tighter tolerance (±1%) is required for precision current sensing applications. This part offers improved accuracy over the standard ±5% specification. 2934 units in stock.

RLP73K3AR43JTE (TE Connectivity): Use as a direct functional equivalent with ±5% tolerance matching the original specification. Highest inventory availability at 7185 units in stock. Suitable for applications where tolerance grade equivalence is the primary selection criterion.

All parts are REACH Unaffected and classified as EAR99 for export control purposes.

Frequently Asked Questions (FAQ)

Q: Can RLP73K3AR43FTDF replace CSR2512JKR430 in my circuit?

A: Yes. RLP73K3AR43FTDF is electrically and mechanically compatible. The ±1% tolerance is tighter than the original ±5%, making it suitable for applications requiring higher precision. All other parameters including resistance value, power rating, package, operating temperature range, and thermal coefficient are identical.

Q: What is the difference between RLP73K3AR43FTDF and RLP73K3AR43JTE?

A: Both are TE Connectivity 2512 package current sense resistors with 430 mOhms resistance and 2W power rating. The primary difference is tolerance: RLP73K3AR43FTDF offers ±1% tolerance while RLP73K3AR43JTE matches the original ±5% tolerance. All other electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical across all three parts?

A: The parts are mechanically compatible within the 2512 (6432 Metric) package standard. Minor dimensional variations exist: CSR2512JKR430 measures 0.252" L x 0.126" W (6.40mm x 3.20mm) with 0.026" max height, while TE Connectivity parts measure 0.250" L x 0.124" W (6.35mm x 3.15mm) with 0.033" max height. These variations are within standard package tolerances and do not affect PCB layout or functionality.

Q: Do all parts have the same moisture sensitivity rating?

A: Yes. All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Which part should I select for new designs?

A: Selection depends on tolerance requirements and sourcing strategy. For standard applications, RLP73K3AR43JTE provides direct equivalence with highest availability. For precision current measurement requiring tighter tolerance control, RLP73K3AR43FTDF is specified. Both are active production parts with full compliance certifications.