RK73B1HTTC563G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC563G is a 56 kOhms ±2% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the product line. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for existing applications.

Substiute Parts

RK73B1HTTC563G

KOA Speer Electronics, Inc.In Stock: 824RK73B1HTTC563G Datasheet

Current PartRFQ

RK73B1HTTCM563G

KOA Speer Electronics, Inc.In Stock: 1066RK73B1HTTCM563G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC563G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 56 kOhms (exact match required)
• Tolerance: ±2% (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 format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level 1 (required for handling and storage compatibility)

Substitute parts must match all parameters listed above. Deviations in any parameter disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM563G is the direct equivalent substitute for the RK73B1HTTC563G. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73B series and share identical electrical, mechanical, and compliance specifications.

Key Distinction: The primary difference between these parts is product lifecycle status. The RK73B1HTTC563G is designated "Not For New Designs," while the RK73B1HTTCM563G carries "Active" status. This indicates that RK73B1HTTCM563G is the current production equivalent and the recommended selection for ongoing applications.

Compliance Alignment: Both parts maintain full AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. No functional or regulatory compromise occurs when transitioning from the main part to the substitute.

Supply Continuity: The substitute part demonstrates higher inventory availability (1003 Pcs vs. 769 Pcs), supporting sustained production requirements.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM563G be used as a direct replacement for RK73B1HTTC563G in automotive applications?

A: Yes. Both parts are AEC-Q200 qualified, share identical electrical specifications (56 kOhms ±2%, 0.05W), and operate across the same temperature range (-55°C ~ 155°C). No design modifications or re-qualification are required.

Q: Are there any packaging differences between these parts?

A: No. Both parts use identical 0201 (0603 Metric) package format with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and height specifications (0.010" / 0.26mm maximum seated height).

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

A: This designation indicates the part has been superseded in the manufacturer's product line. The RK73B1HTTCM563G is the active production equivalent. For new designs and ongoing production, the substitute part is the appropriate selection.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and maintain identical REACH and ECCN classifications.

Q: What is the temperature coefficient specification, and does it differ between parts?

A: Both parts specify ±200ppm/°C temperature coefficient. This parameter is identical across both components.