Equivalent & Substitute Parts for RK73H1HTTC34R0F

Part Overview

The RK73H1HTTC34R0F is a 34 Ohm ±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 with moisture-resistant construction.

The main part carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support ongoing production requirements for existing applications.

Substiute Parts

RK73H1HTTC34R0F

KOA Speer Electronics, Inc.In Stock: 10761RK73H1HTTC34R0F Datasheet

Current PartRFQ

RK73H1HTTCM34R0F

KOA Speer Electronics, Inc.In Stock: 1175RK73H1HTTCM34R0F Datasheet

MFR RecommendedRFQ

AC0201FR-0734RL

YAGEOIn Stock: 1051AC0201FR-0734RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC34R0F are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters (Must Match):

• Resistance value: 34 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package / Case: 0201 (0603 Metric)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Height - Seated (Max): 0.010" (0.26mm)
• Number of terminations: 2

Compliance & Certification (Must Match):

• AEC-Q200 automotive qualification
• RoHS3 compliance
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitute parts must maintain identical electrical performance, physical footprint compatibility, and automotive-grade reliability standards to ensure direct interchangeability in existing designs.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM34R0F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended equivalent from KOA Speer Electronics, Inc. It maintains active product status and carries identical electrical specifications, package dimensions, and AEC-Q200 automotive qualification. The primary distinction is the absence of explicit moisture-resistant designation in the provided data, though both parts share MSL 1 (Unlimited) rating. This substitute is suitable for direct replacement in applications where the original part is no longer available from the manufacturer's active catalog.

AC0201FR-0734RL (YAGEO)

This part represents a cross-manufacturer substitute from YAGEO, maintaining all critical electrical parameters, mechanical compatibility, and automotive compliance standards. It carries active product status and includes explicit moisture-resistant construction matching the original part's environmental specifications. The AC series thick film resistor is qualified to AEC-Q200 standards and provides equivalent performance across the full operating temperature range. This substitute is suitable for applications requiring multi-source component qualification or when KOA Speer supply is constrained.

Both substitute parts satisfy the electrical and mechanical requirements for direct interchangeability with the RK73H1HTTC34R0F in automotive and industrial applications requiring AEC-Q200 qualification.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM34R0F be used as a direct replacement for RK73H1HTTC34R0F?

A: Yes. Both parts share identical resistance (34 Ohms), tolerance (±1%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 qualification. The primary difference is product status: the original is "Not For New Designs" while the substitute is "Active." Electrical and mechanical interchangeability is complete.

Q: What is the difference between the KOA Speer and YAGEO substitutes?

A: Both parts meet identical electrical specifications and AEC-Q200 automotive standards. The key difference is manufacturer: KOA Speer (RK73H1HTTCM34R0F) versus YAGEO (AC0201FR-0734RL). The YAGEO part explicitly specifies moisture-resistant construction, while the KOA Speer substitute does not include this designation in the provided data. Both carry MSL 1 (Unlimited) rating. Selection depends on supply availability, qualification requirements, and multi-source component strategy.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts conform to the 0201 (0603 Metric) package standard with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprint and assembly compatibility are identical.

Q: Do all substitute parts meet automotive AEC-Q200 qualification?

A: Yes. The RK73H1HTTC34R0F, RK73H1HTTCM34R0F, and AC0201FR-0734RL all carry AEC-Q200 qualification, confirming suitability for automotive applications requiring this standard.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations and does not require special moisture-control handling during storage, transportation, or assembly. All three parts carry this rating, ensuring equivalent environmental robustness.

Q: Are there packaging format differences between the substitutes?

A: The RK73H1HTTC34R0F and AC0201FR-0734RL are supplied in Tape & Reel (TR) format. The RK73H1HTTCM34R0F packaging format is not specified in the provided data. Confirm packaging requirements with the supplier before procurement.