RK73H1HTTC6340F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC6340F is a 634 Ohm ±1% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification with moisture-resistant construction. The part is classified as "Not For New Designs," indicating it has been superseded. Identification of equivalent and substitute parts is necessary for design continuity, legacy system support, and component sourcing optimization.

Substiute Parts

RK73H1HTTC6340F

KOA Speer Electronics, Inc.In Stock: 961RK73H1HTTC6340F Datasheet

Current PartRFQ

RK73H1HTTCM6340F

KOA Speer Electronics, Inc.In Stock: 1033RK73H1HTTCM6340F Datasheet

MFR RecommendedRFQ

AC0201FR-07634RL

YAGEOIn Stock: 857AC0201FR-07634RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC6340F is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 634 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3
• Moisture sensitivity: MSL 1

All substitute parts listed meet these exact specifications. Substitution is valid only when all parameters align with the main part specification.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM6340F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended successor from KOA Speer Electronics. It maintains identical electrical and mechanical specifications to the main part while carrying Active product status. Selection of this part is appropriate for applications requiring continuity with the original KOA Speer product line. The part is currently in stock with 926 units available.

AC0201FR-07634RL (YAGEO)

This part is a direct cross-reference alternative from YAGEO, meeting all electrical and mechanical requirements. It carries Active product status and includes moisture-resistant construction. This part is suitable for applications where multi-source component strategy is required or where YAGEO supply chain availability is preferred. The part is currently in stock with 773 units available.

Both substitute parts are qualified for automotive applications under AEC-Q200 and maintain full RoHS3 compliance with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM6340F be used as a direct replacement for RK73H1HTTC6340F?

A: Yes. Both parts share identical resistance (634 Ohms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The primary difference is product status: the substitute is Active while the original is Not For New Designs.

Q: What is the difference between RK73H1HTTC6340F and AC0201FR-07634RL?

A: Both parts are electrically and mechanically equivalent across all specified parameters. The differences are manufacturer (KOA Speer vs. YAGEO) and product series designation (RK73H vs. AC). Both meet AEC-Q200 automotive qualification and ROHS3 compliance.

Q: Are all three parts interchangeable in PCB assembly?

A: Yes, all three parts are interchangeable. They share identical package dimensions (0201 / 0.60mm x 0.30mm), termination count (2), and height specifications (0.010" maximum seated height). PCB footprints and reflow profiles are identical.

Q: Why is the original part marked "Not For New Designs"?

A: This designation indicates the part has been superseded by newer alternatives. For new design work, RK73H1HTTCM6340F or AC0201FR-07634RL should be selected. The original part remains available for legacy system support and repair applications.

Q: Do all substitute parts meet automotive requirements?

A: Yes. All three parts carry AEC-Q200 automotive qualification, operate across -55°C ~ 155°C, and maintain ROHS3 compliance with MSL 1 moisture sensitivity rating.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture-control packaging requirements. All three parts share this rating, eliminating moisture-related handling constraints.