RK73H1HTTC1004F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC1004F is a 1 MOhms ±1% thick film chip resistor in 0201 package format, rated for 0.05W (1/20W) power dissipation. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary to support existing designs, legacy system maintenance, and procurement continuity.

Substiute Parts

RK73H1HTTC1004F

KOA Speer Electronics, Inc.In Stock: 55239RK73H1HTTC1004F Datasheet

Current PartRFQ

RK73H1HTTCM1004F

KOA Speer Electronics, Inc.In Stock: 806RK73H1HTTCM1004F Datasheet

MFR RecommendedRFQ

AC0201FR-071ML

YAGEOIn Stock: 90349AC0201FR-071ML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC1004F are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Resistance value: 1 MOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package format: 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 Compliant
• Moisture sensitivity: MSL 1

All identified substitutes match these parameters exactly. Substitution relationships are categorized as follows:

Category 1: Manufacturer Recommended Upgrade RK73H1HTTCM1004F represents the active product line successor from KOA Speer Electronics, Inc., maintaining identical electrical and mechanical specifications while offering current production status and improved availability.

Category 2: Direct Cross-Reference Alternative AC0201FR-071ML from YAGEO provides equivalent performance across all specified parameters, with the distinction of Tape & Reel packaging and higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Support and Maintenance: The RK73H1HTTCM1004F is the primary recommended substitute. This part maintains identical electrical and mechanical specifications while offering active product status from the original manufacturer. Selection of this part ensures design continuity and leverages established supplier relationships with KOA Speer Electronics, Inc.

For High-Volume Procurement and Inventory Optimization: The AC0201FR-071ML from YAGEO provides equivalent performance with significantly higher inventory availability (90,332 pcs vs. 775 pcs for the KOA recommended part). This alternative is suitable for applications where supplier diversification and stock availability are prioritized, provided that multi-source qualification has been completed.

Compliance Considerations: All three parts maintain ROHS3 compliance and AEC-Q200 automotive qualification. MSL 1 rating indicates unlimited shelf life under standard storage conditions, eliminating moisture sensitivity concerns for both substitute options.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1004F be used as a direct replacement for RK73H1HTTC1004F? A: Yes. The RK73H1HTTCM1004F is the manufacturer-recommended active product successor. All electrical parameters (resistance, tolerance, power rating, temperature coefficient) and mechanical specifications (0201 package, dimensions, terminations) are identical. The primary difference is product status (Active vs. Not For New Designs) and packaging format.

Q: What is the difference between Cut Tape and Tape & Reel packaging? A: Cut Tape (CT) packaging provides individual component strips suitable for lower-volume applications and manual assembly. Tape & Reel (TR) packaging supplies components on continuous reels optimized for automated pick-and-place assembly equipment. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Is AC0201FR-071ML from YAGEO fully compatible with the original KOA part? A: Yes, within the scope of specified parameters. The YAGEO AC0201FR-071ML matches all critical electrical and mechanical specifications: 1 MOhms ±1%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 rating, and ROHS3 compliance. Compatibility is confirmed at the component level based on provided specifications.

Q: Are there any thermal performance differences between these substitutes? A: No. All three parts share identical temperature coefficient (±200ppm/°C) and operating temperature range (-55°C ~ 155°C). Thermal performance is equivalent across all substitutes.

Q: What does "Not For New Designs" status mean for the original part? A: This designation indicates that KOA Speer Electronics, Inc. has transitioned this part to end-of-life status and recommends using the RK73H1HTTCM1004F for new designs. Existing inventory of the original part remains available for legacy system support and maintenance applications.

Q: Can these parts be used interchangeably in automotive applications? A: Yes. All three parts carry AEC-Q200 automotive qualification and moisture-resistant construction. They are suitable for automotive circuit applications requiring 1 MOhms ±1% resistors in 0201 package format.

Q: What is the significance of MSL 1 rating? A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life. These components do not require special moisture-controlled storage or baking procedures prior to assembly, simplifying inventory management and reducing handling complexity.