Equivalent & Substitute Parts for RK73H1HTTC1301F

Part Overview

The RK73H1HTTC1301F is a 1.3 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package format. This component is rated for 0.05W (1/20W) power dissipation and meets AEC-Q200 automotive qualification standards with moisture-resistant construction.

The RK73H1HTTC1301F carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part number to obsolescence or replacement. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for existing applications utilizing this resistor specification.

Substiute Parts

RK73H1HTTC1301F

KOA Speer Electronics, Inc.In Stock: 28567RK73H1HTTC1301F Datasheet

Current PartRFQ

RK73H1HTTCM1301F

KOA Speer Electronics, Inc.In Stock: 690RK73H1HTTCM1301F Datasheet

MFR RecommendedRFQ

AC0201FR-071K3L

YAGEOIn Stock: 20683AC0201FR-071K3L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC1301F are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match Exactly):

• Resistance value: 1.3 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match Exactly):

• 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):

• Automotive AEC-Q200 rating
• Moisture-resistant thick film composition
• RoHS3 compliance
• MSL 1 (Unlimited) moisture sensitivity level

Substitute parts identified below meet all electrical, mechanical, and compliance requirements and are therefore functionally and physically interchangeable with the RK73H1HTTC1301F in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM1301F (KOA Speer Electronics, Inc.) - MFR Recommended Substitute

The RK73H1HTTCM1301F is the manufacturer-recommended equivalent from KOA Speer Electronics, Inc. This part maintains identical electrical and mechanical specifications to the RK73H1HTTC1301F while carrying an Active product status. Selection of this part number ensures continuity within the KOA RK73H series and provides access to current manufacturing processes and quality assurance protocols. Current inventory availability is 677 pieces.

AC0201FR-071K3L (YAGEO) - Direct Cross-Reference Substitute

The AC0201FR-071K3L from YAGEO is a direct cross-reference substitute meeting all electrical, mechanical, and compliance requirements. This part is from an alternative manufacturer and carries Active product status. The AC series thick film resistor maintains identical resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 rating are preserved. Current inventory availability is 20,580 pieces.

Both substitute parts are suitable for direct replacement in applications currently utilizing the RK73H1HTTC1301F. Selection between these options should be based on supply chain preferences, inventory availability, and existing qualification documentation within the design organization.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM1301F be used as a direct replacement for the RK73H1HTTC1301F?

A: Yes. The RK73H1HTTCM1301F is the manufacturer-recommended equivalent from KOA Speer Electronics, Inc. All electrical parameters (1.3 kOhms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C), mechanical specifications (0201 package, 0.024" L x 0.012" W), and compliance certifications (AEC-Q200, RoHS3, MSL 1) are identical. The primary difference is product status: RK73H1HTTCM1301F is Active, while RK73H1HTTC1301F is Not For New Designs.

Q: Is the YAGEO AC0201FR-071K3L compatible with the original KOA part?

A: Yes. The AC0201FR-071K3L meets all electrical and mechanical requirements for substitution. Resistance, tolerance, power rating, package dimensions, temperature coefficient, operating temperature range, and all compliance ratings (AEC-Q200, RoHS3, MSL 1) are identical to the RK73H1HTTC1301F. The difference is manufacturer: YAGEO versus KOA Speer Electronics, Inc.

Q: What are the key parameters that determine if a part can substitute for the RK73H1HTTC1301F?

A: Substitution eligibility is determined by exact matching of: (1) Resistance value and tolerance (1.3 kOhms ±1%), (2) Power rating (0.05W), (3) Package type and dimensions (0201, 0.024" L x 0.012" W), (4) Temperature coefficient (±200ppm/°C), (5) Operating temperature range (-55°C ~ 155°C), (6) Automotive AEC-Q200 qualification, (7) Thick film composition with moisture resistance, (8) RoHS3 compliance, and (9) MSL 1 rating.

Q: Why is the RK73H1HTTC1301F marked as "Not For New Designs"?

A: "Not For New Designs" status indicates that the manufacturer has discontinued active promotion and development of this part number. Existing inventory may remain available, but the manufacturer recommends using the active equivalent RK73H1HTTCM1301F for new design implementations. This status does not affect the performance or reliability of existing units in current production.

Q: Are there any differences in packaging between these substitute parts?

A: The RK73H1HTTC1301F and AC0201FR-071K3L are both supplied in Tape & Reel (TR) packaging. The RK73H1HTTCM1301F packaging information is not specified in available data. All three parts use the identical 0201 (0603 Metric) package format with matching physical dimensions (0.024" L x 0.012" W, 0.010" height maximum). Tape & Reel packaging is standard for high-volume surface mount assembly operations.

Q: Can these parts be used interchangeably in automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards. They are suitable for use in automotive applications requiring 1.3 kOhms ±1% thick film resistors in the 0201 package format with the specified electrical and thermal characteristics.