RC1210FR-07124KL Equivalent & Substitute Parts

Part Overview

The RC1210FR-07124KL is a 124 kOhms ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by YAGEO. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). The part is suitable for general-purpose applications requiring precision resistive elements with moisture resistance.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements mandate automotive-grade qualification, or when alternative manufacturers' inventory provides better lead times and availability.

Substiute Parts

RC1210FR-07124KL

YAGEOIn Stock: 662RC1210FR-07124KL Datasheet

Current PartRFQ

AC1210FR-07124KL

YAGEOIn Stock: 4347AC1210FR-07124KL Datasheet

UpgradeRFQ

ERJ-14NF1243U

Panasonic Electronic ComponentsIn Stock: 6544ERJ-14NF1243U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1210FR-07124KL is determined by the following mandatory parameters:

• Resistance value: 124 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Package: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• RoHS compliance: ROHS3 Compliant (minimum requirement)
• Moisture sensitivity: MSL 1 (minimum requirement)

Two substitute parts meet these criteria:

AC1210FR-07124KL (YAGEO, Upgrade variant): Identical electrical and mechanical specifications with added automotive AEC-Q200 qualification and moisture resistance features.

ERJ-14NF1243U (Panasonic Electronic Components, MFR Recommended): Meets all mandatory electrical parameters with automotive AEC-Q200 qualification. Marked as Not For New Designs but functionally equivalent.

Parameter Comparison

Engineering Selection Recommendations

AC1210FR-07124KL is the primary substitute for new designs. It maintains identical electrical specifications and mechanical dimensions while adding automotive AEC-Q200 qualification. Both parts are Active status, ensuring continued availability and support. This variant is suitable for applications requiring automotive-grade reliability without design changes.

ERJ-14NF1243U is functionally equivalent but carries a "Not For New Designs" status. This designation indicates the part is in mature phase with limited future support. Selection of this part should be limited to legacy system maintenance or when specific supply chain requirements mandate Panasonic sourcing. Minor dimensional variations exist: the ERJ-14NF1243U has slightly larger length (0.126" vs 0.122") and height (0.028" vs 0.024"), which may impact PCB layout in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1243U be used in new product designs?

A: ERJ-14NF1243U carries "Not For New Designs" status. For new designs, AC1210FR-07124KL is the recommended substitute, as it maintains Active product status and identical specifications.

Q: Are there dimensional differences between the substitutes?

A: Yes. RC1210FR-07124KL and AC1210FR-07124KL share identical dimensions (0.122" L x 0.102" W, 0.024" max height). ERJ-14NF1243U has slightly larger dimensions (0.126" L x 0.098" W, 0.028" max height). Verify PCB layout clearances before substitution.

Q: What is the significance of AEC-Q200 qualification?

A: AEC-Q200 is an automotive industry standard qualification. AC1210FR-07124KL and ERJ-14NF1243U both carry this certification, indicating suitability for automotive applications. RC1210FR-07124KL lacks this certification but remains suitable for general-purpose applications.

Q: Are all three parts RoHS3 compliant?

A: Yes. RC1210FR-07124KL, AC1210FR-07124KL, and ERJ-14NF1243U are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What determines substitution compatibility?

A: Substitution is based on exact matching of resistance (124 kOhms), tolerance (±1%), power rating (0.5W), package (1210), composition (Thick Film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). All three parts meet these criteria.