RK73H2HTTE34R8F Equivalent & Substitute Parts

Part Overview

The RK73H2HTTE34R8F is a 34.8 Ohm ±1% 0.75W thick film chip resistor manufactured by KOA Speer Electronics in the 2010 (5025 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction. The part is currently in active production status. Substitute parts are identified based on matching electrical specifications, mechanical dimensions, and automotive qualification requirements to ensure functional equivalence in circuit applications.

Substiute Parts

RK73H2HTTE34R8F

KOA Speer Electronics, Inc.In Stock: 1222RK73H2HTTE34R8F Datasheet

Current PartRFQ

CRCW201034R8FKEF

Vishay DaleIn Stock: 6700CRCW201034R8FKEF Datasheet

Parametric EquivalentRFQ

ERJ-12SF34R8U

Panasonic Electronic ComponentsIn Stock: 15295ERJ-12SF34R8U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H2HTTE34R8F are qualified based on the following criteria:

Electrical Parameters: Resistance value of 34.8 Ohms, tolerance of ±1%, and power rating of 0.75W must be identical across all substitutes.

Mechanical Parameters: Package designation of 2010 (5025 Metric) with matching physical dimensions (0.197" L x 0.098" W / 5.00mm x 2.50mm) and maximum seated height of 0.028" (0.70mm) ensures PCB footprint compatibility.

Environmental & Compliance Parameters: Temperature coefficient of ±100ppm/°C, operating temperature range of -55°C ~ 155°C, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating must be maintained.

Composition: Thick film construction is required for functional equivalence.

All identified substitutes meet these criteria and are suitable for direct replacement in automotive applications requiring AEC-Q200 qualified components.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: The RK73H2HTTE34R8F from KOA Speer Electronics is recommended for new designs. This part maintains active production status and full automotive qualification.

First Alternative: The CRCW201034R8FKEF from Vishay Dale is a direct parametric equivalent with active product status. This substitute is suitable for applications where KOA Speer supply is constrained or where Vishay Dale components are preferred in the design.

Secondary Alternative: The ERJ-12SF34R8U from Panasonic Electronic Components meets all electrical and mechanical specifications. However, this part carries a "Not For New Designs" status, indicating it is in mature or end-of-life phase. This substitute is appropriate only for legacy system maintenance, repair, or where existing design qualification has been established with this component.

All three parts maintain identical electrical performance, mechanical compatibility, and automotive compliance requirements. Selection should prioritize active production status for new designs and supply chain availability for production planning.

Frequently Asked Questions (FAQ)

Q: Can CRCW201034R8FKEF be used as a direct replacement for RK73H2HTTE34R8F?

A: Yes. Both parts share identical resistance value (34.8 Ohms), tolerance (±1%), power rating (0.75W), package dimensions (2010 / 5025 Metric), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. Electrical and mechanical compatibility is complete.

Q: Why is ERJ-12SF34R8U marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase with limited future availability. While it meets all technical specifications and remains suitable for existing applications, new circuit designs should prioritize parts with active production status such as RK73H2HTTE34R8F or CRCW201034R8FKEF.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 qualification, ROHS3 compliance, and MSL 1 rating, meeting automotive industry standards for reliability and environmental performance.

Q: What determines if a part can substitute for RK73H2HTTE34R8F?

A: Substitution requires matching resistance value, tolerance, power rating, package type, temperature coefficient, operating temperature range, and automotive qualification level. All identified substitutes meet these criteria.

Q: Are there differences in physical dimensions between these parts?

A: No. All three parts use the 2010 (5025 Metric) package with identical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) and maximum seated height of 0.028" (0.70mm). PCB footprint compatibility is guaranteed.