RK73H1HTTC5230D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC5230D is a 523 Ohm ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC5230D carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has discontinued this model for new design implementations. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support existing production requirements where this resistor is currently deployed.

Substiute Parts

RK73H1HTTC5230D

KOA Speer Electronics, Inc.In Stock: 751RK73H1HTTC5230D Datasheet

Current PartRFQ

RK73H1HTTCM5230D

KOA Speer Electronics, Inc.In Stock: 990RK73H1HTTCM5230D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC5230D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 523 Ohms (exact match required)
• Tolerance: ±0.5% (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 / Case: 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 & Environmental Parameters:

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

Substitute parts must maintain identical electrical performance, physical form factor, and automotive qualification to ensure direct interchangeability in existing circuit designs and manufacturing processes.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM5230D is the direct equivalent substitute for the RK73H1HTTC5230D. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73H series, and maintain identical electrical specifications, mechanical dimensions, and automotive compliance certifications.

The primary distinction between these parts is product status: the RK73H1HTTC5230D is designated "Not For New Designs," while the RK73H1HTTCM5230D carries an "Active" status. This indicates that KOA Speer Electronics continues to manufacture and support the RK73H1HTTCM5230D for ongoing production and new design applications.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity ratings. The electrical performance, temperature stability (±200ppm/°C), and operating temperature range (-55°C ~ 155°C) are identical across both components.

For applications currently using the RK73H1HTTC5230D, the RK73H1HTTCM5230D provides direct functional and mechanical interchangeability without circuit redesign or board layout modification. The substitute part is available in higher inventory quantities (965 Pcs vs. 725 Pcs), supporting sustained production requirements.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM5230D be used as a direct replacement for the RK73H1HTTC5230D in existing designs?

A: Yes. The RK73H1HTTCM5230D is a direct equivalent substitute. Both components share identical resistance (523 Ohms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive certification. No circuit modifications or board layout changes are required.

Q: What is the difference between the RK73H1HTTC5230D and RK73H1HTTCM5230D?

A: The primary difference is product status. The RK73H1HTTC5230D is marked "Not For New Designs," indicating discontinuation for new applications. The RK73H1HTTCM5230D carries "Active" status and continues in production. All electrical, mechanical, and compliance specifications are identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the RK73H1HTTC5230D and RK73H1HTTCM5230D meet AEC-Q200 automotive qualification standards and are rated for automotive-grade reliability and environmental performance.

Q: Do these resistors require special handling or storage?

A: Both components carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity restrictions. Standard component storage practices apply.

Q: Can these 0201 package resistors be used interchangeably with other package sizes?

A: No. The 0201 (0603 Metric) package is a specific form factor with defined dimensions (0.024" L x 0.012" W, 0.60mm x 0.30mm). Substitution is limited to components with identical package specifications to ensure proper PCB assembly and electrical performance.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8533.21.0030. Both meet AEC-Q200 automotive standards.