CSRN2512FKR110 Equivalent & Substitute Parts

Part Overview

The CSRN2512FKR110 is a 110 mOhms ±1% 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 meets AEC-Q200 qualification standards. The part is active in production with 815 pieces in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when supply chain diversification is required.

Substiute Parts

CSRN2512FKR110

Stackpole Electronics IncIn Stock: 875CSRN2512FKR110 Datasheet

Current PartRFQ

RLP73K3AR11FTDF

TE Connectivity Passive ProductIn Stock: 24205RLP73K3AR11FTDF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CSRN2512FKR110 are qualified based on the following electrical and mechanical parameters:

• Resistance value: 110 mOhms
• Tolerance: ±1%
• Power rating: 2W
• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Number of terminations: 2
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

The RLP73K3AR11FTDF from TE Connectivity Passive Product meets all these critical parameters and is therefore classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the CSRN2512FKR110 and RLP73K3AR11FTDF are active production parts with ROHS3 compliance and REACH unaffected status. The primary difference is the seated height: the Stackpole part measures 0.028" (0.70mm) maximum, while the TE Connectivity part measures 0.033" (0.84mm) maximum. This 0.005" (0.14mm) difference must be evaluated against PCB layout constraints and clearance requirements in the target application. Both parts are suitable for automotive current sense applications with identical electrical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can RLP73K3AR11FTDF be used as a direct replacement for CSRN2512FKR110?

A: Yes, the RLP73K3AR11FTDF meets all critical electrical parameters. However, the seated height difference of 0.005" (0.14mm) must be verified against PCB design constraints before implementation.

Q: Are there any automotive qualification differences between these parts?

A: The CSRN2512FKR110 carries explicit AEC-Q200 designation. The RLP73K3AR11FTDF is specified as a current sense thick film resistor but does not list AEC-Q200 in the provided data. Automotive application requirements must be confirmed with the design specification.

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

A: Yes, both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: What is the significance of the ±200ppm/°C temperature coefficient?

A: This parameter defines the resistance change per degree Celsius across the operating temperature range. Both parts have identical temperature coefficients, ensuring equivalent thermal performance in the -55°C to 155°C operating range.

Q: Are there inventory considerations for substitution?

A: The CSRN2512FKR110 has 815 pieces in stock, while the RLP73K3AR11FTDF has 24,184 pieces available. The substitute offers significantly higher inventory availability for supply chain continuity.