RK73H1HTTC3604F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3604F is a 3.6 MOhms ±1% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W (1/20W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and complies with automotive AEC-Q200 standards with moisture-resistant construction.

The RK73H1HTTC3604F carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for existing applications and legacy system support.

Substiute Parts

RK73H1HTTC3604F

KOA Speer Electronics, Inc.In Stock: 1255RK73H1HTTC3604F Datasheet

Current PartRFQ

RK73H1HTTCM3604F

KOA Speer Electronics, Inc.In Stock: 743RK73H1HTTCM3604F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3604F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 3.6 MOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

• Package type: 0201 (0603 Metric)
• Number of terminations: 2
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Maximum seated height: 0.010" (0.26mm)

Compliance & Quality Parameters:

• Automotive AEC-Q200 certification
• RoHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• Thick film composition

All substitute parts must match these parameters without deviation to ensure functional and mechanical compatibility in the original application circuit.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM3604F serves as the direct substitute for the RK73H1HTTC3604F. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and maintain identical electrical, mechanical, and compliance specifications.

The primary distinction is product status: the original RK73H1HTTC3604F is designated "Not For New Designs," while the substitute RK73H1HTTCM3604F carries "Active" status. This indicates the substitute represents the current production equivalent and is the recommended selection for ongoing supply requirements.

Both parts satisfy automotive AEC-Q200 qualification, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1). The electrical performance, thermal characteristics, and physical form factor are identical, ensuring direct functional substitution without circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3604F be used as a direct replacement for RK73H1HTTC3604F?

A: Yes. The RK73H1HTTCM3604F is electrically and mechanically equivalent to the RK73H1HTTC3604F. All critical parameters including resistance value (3.6 MOhms), tolerance (±1%), power rating (0.05W), package type (0201), temperature coefficient (±200ppm/°C), and operating range (-55°C ~ 155°C) are identical. Both components meet AEC-Q200 automotive standards and ROHS3 compliance requirements.

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

A: The "Not For New Designs" status indicates the RK73H1HTTC3604F has been superseded in the manufacturer's active product portfolio. The RK73H1HTTCM3604F represents the current production equivalent. For new designs and ongoing procurement, the substitute part is the recommended selection.

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

A: Both components use identical 0201 (0603 Metric) package specifications with matching physical dimensions (0.024" L x 0.012" W) and maximum seated height (0.010"). Moisture sensitivity level is MSL 1 (Unlimited) for both parts, requiring no special storage or handling precautions beyond standard component care.

Q: Will substitution require PCB layout changes?

A: No. The substitute part maintains identical package dimensions and termination configuration (2 terminations). PCB footprints, land patterns, and assembly processes remain unchanged.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the RK73H1HTTC3604F and RK73H1HTTCM3604F carry AEC-Q200 automotive qualification, confirming suitability for automotive-grade applications across the specified operating temperature range of -55°C to 155°C.