Equivalent & Substitute Parts for RK73H1HTTC12R7F

Part Overview

The RK73H1HTTC12R7F is a 12.7 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 RK73H1HTTC12R7F carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to support ongoing production requirements, field service applications, and design continuity where this component remains specified in active systems.

Substiute Parts

RK73H1HTTC12R7F

KOA Speer Electronics, Inc.In Stock: 882RK73H1HTTC12R7F Datasheet

Current PartRFQ

RK73H1HTTCM12R7F

KOA Speer Electronics, Inc.In Stock: 824RK73H1HTTCM12R7F Datasheet

MFR RecommendedRFQ

AC0201FR-0712R7L

YAGEOIn Stock: 705AC0201FR-0712R7L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC12R7F are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 12.7 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Substitutes are identified within the same manufacturer series (RK73H) or from alternative manufacturers (YAGEO AC series) where all electrical specifications, package dimensions, and automotive certifications remain identical. Moisture resistance and MSL ratings are preserved across all qualified substitutes.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM12R7F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended substitute within the KOA RK73H series. It maintains identical electrical specifications, package dimensions, and AEC-Q200 automotive qualification. The primary distinction is active product status, ensuring long-term availability and supply chain continuity. This substitute is appropriate for applications requiring KOA component sourcing or where existing supply agreements specify KOA manufacturers.

AC0201FR-0712R7L (YAGEO)

This part provides cross-manufacturer equivalence with identical electrical and mechanical parameters. YAGEO AC series thick film resistors meet the same AEC-Q200 automotive standards, temperature performance, and RoHS compliance. This substitute is suitable for applications where multi-source qualification is required or where YAGEO components are preferred for supply chain diversification. The AC0201FR-0712R7L includes moisture-resistant construction matching the original specification.

Both substitutes are qualified for direct replacement in automotive and industrial applications where the RK73H1HTTC12R7F is currently specified.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM12R7F be used as a direct replacement for RK73H1HTTC12R7F?

A: Yes. Both parts share identical resistance (12.7 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 qualification. The primary difference is product status; RK73H1HTTCM12R7F is active while RK73H1HTTC12R7F is not for new designs.

Q: What is the difference between RK73H1HTTC12R7F and AC0201FR-0712R7L?

A: Both parts are electrically and mechanically equivalent with matching resistance, tolerance, power rating, package dimensions, and automotive certifications. The primary difference is manufacturer: KOA Speer Electronics versus YAGEO. Both are ROHS3 compliant and MSL 1 rated. AC0201FR-0712R7L explicitly specifies moisture-resistant construction.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and operate across the -55°C ~ 155°C temperature range required for automotive environments.

Q: Can I mix these parts in the same production batch?

A: Yes, provided your design and procurement specifications allow multi-source components. All three parts meet identical electrical, mechanical, and compliance requirements. Verify your quality assurance procedures and supply chain documentation support cross-manufacturer substitution.

Q: What is the significance of "Not For New Designs" status on RK73H1HTTC12R7F?

A: This status indicates the part is in mature or end-of-life phase and is not recommended for new product designs. However, it remains available for existing applications and field service. The active substitutes (RK73H1HTTCM12R7F and AC0201FR-0712R7L) provide long-term availability for ongoing production.

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

A: Yes. All three parts use the 0201 (0603 Metric) package with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm).

Q: What does MSL 1 (Unlimited) mean for these resistors?

A: MSL 1 indicates the lowest moisture sensitivity level. These parts can be stored indefinitely without moisture baking requirements prior to soldering, simplifying inventory management and reducing production constraints.