RK73H1HTTC1333F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC1333F is a 133 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) surface mount package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC1333F carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part to end-of-life. Identifying equivalent and substitute parts is necessary to maintain design continuity, support existing production requirements, and ensure long-term component availability for applications currently utilizing this resistor.

Substiute Parts

RK73H1HTTC1333F

KOA Speer Electronics, Inc.In Stock: 21066RK73H1HTTC1333F Datasheet

Current PartRFQ

RK73H1HTTCM1333F

KOA Speer Electronics, Inc.In Stock: 1156RK73H1HTTCM1333F Datasheet

MFR RecommendedRFQ

AC0201FR-07133KL

YAGEOIn Stock: 745AC0201FR-07133KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC1333F are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters:

• Resistance value: 133 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

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

Compliance & Certification Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• Composition: Thick Film (exact match required)
• Moisture resistance: Yes (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the RK73H1HTTC1333F in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RK73H1HTTCM1333F (KOA Speer Electronics, Inc.)

The RK73H1HTTCM1333F is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. This part maintains the same electrical specifications, package dimensions, and automotive AEC-Q200 qualification as the original RK73H1HTTC1333F. The primary distinction is that RK73H1HTTCM1333F carries an "Active" product status, ensuring continued availability and manufacturing support. This part is the preferred choice for direct replacement in existing designs and for new production runs requiring KOA Speer components.

Secondary Substitute: AC0201FR-07133KL (YAGEO)

The AC0201FR-07133KL from YAGEO provides a cross-manufacturer equivalent with identical electrical and mechanical specifications. This part meets all AEC-Q200 automotive requirements, includes moisture-resistant construction, and maintains the same 0201 package footprint. The AC0201FR-07133KL carries "Active" product status and represents a viable alternative when KOA Speer components are unavailable or when design flexibility permits multi-source qualification. Both substitute parts are ROHS3 compliant and suitable for automotive applications requiring AEC-Q200 certification.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM1333F be used as a direct replacement for the RK73H1HTTC1333F?

A: Yes. The RK73H1HTTCM1333F is electrically and mechanically identical to the RK73H1HTTC1333F. Both parts share the same resistance value (133 kOhms), tolerance (±1%), power rating (0.05W), package type (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The primary difference is product status: RK73H1HTTCM1333F is Active, while RK73H1HTTC1333F is Not For New Designs.

Q: What is the difference between RK73H1HTTC1333F and RK73H1HTTCM1333F?

A: The RK73H1HTTCM1333F differs from the RK73H1HTTC1333F in one specification: moisture resistance. The original RK73H1HTTC1333F includes moisture-resistant construction, while the RK73H1HTTCM1333F does not explicitly list this feature. Both parts maintain identical electrical parameters, package dimensions, and AEC-Q200 certification. For applications requiring moisture-resistant thick film construction, the AC0201FR-07133KL from YAGEO is recommended as an alternative.

Q: Is the AC0201FR-07133KL compatible with designs using the RK73H1HTTC1333F?

A: Yes. The AC0201FR-07133KL meets all electrical and mechanical requirements for direct substitution. Both parts are 0201 package resistors with 133 kOhms resistance, ±1% tolerance, 0.05W power rating, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 automotive qualification, and moisture-resistant thick film construction. The AC0201FR-07133KL is manufactured by YAGEO and carries Active product status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The RK73H1HTTCM1333F and AC0201FR-07133KL are both ROHS3 compliant, matching the compliance status of the original RK73H1HTTC1333F. All three parts are also REACH Unaffected and carry Moisture Sensitivity Level 1 (Unlimited).

Q: What is the significance of the 0201 package designation?

A: The 0201 package (0603 Metric) is a surface mount resistor package with physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). All substitute parts use this identical package, ensuring compatibility with existing PCB layouts and assembly processes. The 0201 package is one of the smallest standard resistor packages and is commonly used in space-constrained automotive and consumer electronics applications.

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

A: Yes. All three parts—RK73H1HTTC1333F, RK73H1HTTCM1333F, and AC0201FR-07133KL—meet AEC-Q200 automotive qualification standards. They are suitable for use in automotive applications requiring 133 kOhms ±1% resistors with 0.05W power rating in 0201 packages. AEC-Q200 certification confirms compliance with automotive reliability and quality standards.