CSRN2512FKR620 Equivalent & Substitute Parts

Part Overview

The CSRN2512FKR620 is a 620 mOhms ±1% 2W chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This thick film current sense resistor is designed for automotive applications and carries AEC-Q200 qualification. The part is active in production with 831 pieces currently in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Substiute Parts

CSRN2512FKR620

Stackpole Electronics IncIn Stock: 854CSRN2512FKR620 Datasheet

Current PartRFQ

RLP73K3AR62FTDF

TE Connectivity Passive ProductIn Stock: 2117RLP73K3AR62FTDF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSRN2512FKR620 is determined by strict alignment of the following parameters:

Resistance value must be 620 mOhms with ±1% tolerance. Power rating must be 2W. Package must be 2512 (6432 Metric) with matching physical dimensions (0.250" L x 0.124" W / 6.35mm x 3.15mm). Composition must be thick film. Temperature coefficient must be ±200ppm/°C. Operating temperature range must span -55°C to 155°C. RoHS3 compliance and MSL 1 rating are required. The substitute part RLP73K3AR62FTDF meets all these criteria and is therefore classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both CSRN2512FKR620 and RLP73K3AR62FTDF are active production parts with identical electrical specifications and package dimensions. Both carry ROHS3 compliance and MSL 1 ratings. The primary distinction is the maximum seated height: CSRN2512FKR620 at 0.028" (0.70mm) versus RLP73K3AR62FTDF at 0.033" (0.84mm). Selection between these parts should be based on PCB layout constraints and available board space. Both parts are suitable for automotive current sense applications requiring AEC-Q200 qualification or equivalent thick film performance.

Frequently Asked Questions (FAQ)

Q: Can RLP73K3AR62FTDF replace CSRN2512FKR620 in all applications?

A: RLP73K3AR62FTDF is electrically and mechanically equivalent. The height difference (0.028" vs 0.033") must be evaluated against specific PCB design requirements. If board clearance permits the additional 0.005" height, direct substitution is valid.

Q: Are both parts suitable for automotive applications?

A: CSRN2512FKR620 carries explicit AEC-Q200 qualification. RLP73K3AR62FTDF is specified for current sense applications with equivalent operating temperature and tolerance specifications. Automotive qualification requirements should be confirmed with application specifications.

Q: What is the significance of the 2512 package designation?

A: 2512 is the imperial designation (0.250" x 0.124") equivalent to 6432 metric (6.4mm x 3.2mm). Both parts use this identical package, ensuring PCB footprint compatibility.

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

A: Yes. Both CSRN2512FKR620 and RLP73K3AR62FTDF carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: What is the temperature coefficient significance?

A: Both parts specify ±200ppm/°C temperature coefficient across the -55°C to 155°C operating range. This ensures predictable resistance drift in thermal cycling environments typical of automotive applications.