RK73G1HTTC1302F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC1302F is a 13 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73G1HTTC1302F

KOA Speer Electronics, Inc.In Stock: 926RK73G1HTTC1302F Datasheet

Current PartRFQ

RK73G1HTTCM1302F

KOA Speer Electronics, Inc.In Stock: 996RK73G1HTTCM1302F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC1302F is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (13 kOhms), tolerance (±1%), and power rating (0.05W) must be identical. Temperature coefficient (±50ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Specifications: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm maximum) must match exactly to ensure PCB compatibility and assembly process compatibility.

Compliance & Ratings: AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 rating are mandatory for equivalent substitution in automotive applications.

Composition: Thick film construction must be maintained to preserve electrical performance characteristics.

Parts meeting all these criteria are classified as direct equivalents and may be substituted without circuit redesign or re-qualification.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM1302F is a direct equivalent substitute for the RK73G1HTTC1302F. Both parts are manufactured by KOA Speer Electronics, Inc., within the RK73G series, and share identical electrical, mechanical, and compliance specifications. The primary distinction is product status: the original part is classified as "Not For New Designs," while the substitute is Active.

For new designs and ongoing production, the RK73G1HTTCM1302F is the recommended selection. This part maintains full AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating, ensuring compatibility with automotive applications and regulatory requirements. The transition from RK73G1HTTC1302F to RK73G1HTTCM1302F requires no circuit modifications, re-qualification, or assembly process changes.

For existing designs currently using RK73G1HTTC1302F, substitution with RK73G1HTTCM1302F is a direct replacement with no functional or performance impact.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM1302F be used as a direct replacement for RK73G1HTTC1302F in existing designs?

A: Yes. Both parts are electrically and mechanically identical. All critical parameters—resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range—are equivalent. No circuit redesign or re-qualification is required.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. RK73G1HTTC1302F is classified as "Not For New Designs," indicating it has been superseded. RK73G1HTTCM1302F is the active equivalent in the manufacturer's current product line. Both parts meet identical specifications and certifications.

Q: Are both parts AEC-Q200 qualified for automotive applications?

A: Yes. Both RK73G1HTTC1302F and RK73G1HTTCM1302F carry AEC-Q200 automotive qualification and are suitable for automotive circuit applications.

Q: Do these parts have the same physical dimensions and package compatibility?

A: Yes. Both parts are packaged in 0201 (0603 Metric) with identical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are fully compatible with the same PCB footprints and assembly processes.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and are REACH unaffected. Regulatory and compliance status is identical.

Q: Which part should be specified for new designs?

A: RK73G1HTTCM1302F should be specified for new designs. As the active product in the manufacturer's line, it ensures long-term supply availability and ongoing manufacturer support.