RK73H1HTTC34R8F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC34R8F is a 34.8 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in 0201 package format. 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 with 834 units available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are maintained across alternative manufacturers or product variants.

Substiute Parts

RK73H1HTTC34R8F

KOA Speer Electronics, Inc.In Stock: 868RK73H1HTTC34R8F Datasheet

Current PartRFQ

RK73H1HTTCM34R8F

KOA Speer Electronics, Inc.In Stock: 952RK73H1HTTCM34R8F Datasheet

MFR RecommendedRFQ

AC0201FR-0734R8L

YAGEOIn Stock: 1051AC0201FR-0734R8L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC34R8F are qualified based on the following criteria:

Electrical Equivalence: Resistance value of 34.8 Ohms, tolerance of ±1%, and power rating of 0.05W (1/20W) must be maintained.

Mechanical Compatibility: Package format must be 0201 (0603 Metric) with identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm).

Environmental & Compliance Standards: Operating temperature range of -55°C ~ 155°C, temperature coefficient of ±200ppm/°C, AEC-Q200 automotive qualification, and ROHS3 compliance are required.

Material & Construction: Thick film composition with moisture-resistant properties and MSL 1 rating.

Substitutes are grouped into two categories: manufacturer-recommended variants within the KOA Speer Electronics RK73H series, and direct cross-manufacturer equivalents from alternative suppliers meeting identical specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: RK73H1HTTC34R8F remains the specified component with full moisture-resistant construction and Tape & Reel packaging confirmation.

Manufacturer-Recommended Substitute: RK73H1HTTCM34R8F is a KOA Speer Electronics variant within the same RK73H series. This part maintains all critical electrical and mechanical parameters with higher current inventory (906 units). The moisture-resistant specification is not explicitly stated for this variant; however, it shares the same series designation and AEC-Q200 compliance. This substitute is suitable for applications where KOA Speer Electronics supply chain continuity is prioritized.

Cross-Manufacturer Equivalent: AC0201FR-0734R8L from YAGEO provides full electrical and mechanical equivalence with explicit moisture-resistant construction and Tape & Reel packaging. This part meets all AEC-Q200 and ROHS3 compliance requirements. Current inventory is 971 units. This substitute is suitable for applications requiring multi-source qualification or when YAGEO supply availability is preferred.

All three parts are active production components with unlimited moisture sensitivity levels and identical operating temperature ranges, making them functionally interchangeable within the specified design parameters.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the RK73H1HTTC34R8F?

A: Substitutes must maintain the following specifications: 34.8 Ohm resistance value, ±1% tolerance, 0.05W power rating, 0201 package format with 0.024" L x 0.012" W dimensions, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating.

Q: Can RK73H1HTTCM34R8F be used as a direct replacement?

A: RK73H1HTTCM34R8F is a manufacturer-recommended variant from KOA Speer Electronics within the RK73H series. It matches all critical electrical and mechanical parameters. The moisture-resistant specification is not explicitly documented for this variant, though it shares the same series and AEC-Q200 rating as the primary part.

Q: Is AC0201FR-0734R8L from YAGEO fully equivalent?

A: AC0201FR-0734R8L meets all electrical specifications (34.8 Ohms ±1%, 0.05W), mechanical dimensions (0201 package), environmental ratings (-55°C ~ 155°C), and compliance standards (AEC-Q200, ROHS3, MSL 1). It includes explicit moisture-resistant construction and Tape & Reel packaging, making it a complete functional equivalent.

Q: Are there differences in packaging between these parts?

A: RK73H1HTTC34R8F and AC0201FR-0734R8L are both supplied in Tape & Reel (TR) format. RK73H1HTTCM34R8F packaging format is not specified in available documentation.

Q: What is the significance of AEC-Q200 rating for these resistors?

A: AEC-Q200 is an automotive qualification standard. All three parts meet this requirement, confirming suitability for automotive applications with specified reliability and performance standards across the -55°C to 155°C operating range.

Q: Can these parts be used interchangeably in high-reliability applications?

A: All three parts are active production components with identical electrical specifications, mechanical compatibility, and automotive compliance ratings. Selection between them should be based on supply chain requirements, inventory availability, and manufacturer preference within your design documentation.