RK73B1HTTC751G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC751G is a 750 Ohm ±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 The part is currently classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Identifying equivalent substitute parts is necessary for ongoing support of existing designs, inventory management, and ensuring continued availability of functionally identical components.

Substiute Parts

RK73B1HTTC751G

KOA Speer Electronics, Inc.In Stock: 898RK73B1HTTC751G Datasheet

Current PartRFQ

RK73B1HTTCM751G

KOA Speer Electronics, Inc.In Stock: 738RK73B1HTTCM751G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC751G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 750 Ohms (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)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Height seated maximum: 0.010" / 0.26mm (exact match required)

Compliance & Certification:

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

Substitute parts must match all electrical, mechanical, and compliance parameters to ensure functional and physical interchangeability without design modification or re-qualification.

Parameter Comparison

Engineering Selection Recommendations

RK73B1HTTCM751G is the direct substitute for RK73B1HTTC751G based on the following engineering criteria:

1. Electrical Equivalence: All electrical parameters are identical, including resistance value, tolerance, power rating, and temperature coefficient. The component operates within the same temperature range (-55°C ~ 155°C).

2. Mechanical Compatibility: Physical dimensions and package format are identical. The 0201 (0603 Metric) package ensures drop-in compatibility without PCB layout modification.

3. Automotive Compliance: Both parts carry AEC-Q200 automotive qualification, meeting the same reliability and quality standards for automotive applications.

4. Regulatory Compliance: Both parts are ROHS3 compliant and carry identical moisture sensitivity ratings (MSL 1), ensuring equivalent handling, storage, and assembly requirements.

5. Product Lifecycle Status: The substitute part (RK73B1HTTCM751G) is classified as "Active," providing assured long-term availability compared to the main part's "Not For New Designs" status.

The RK73B1HTTCM751G provides functional and physical interchangeability for all applications currently using RK73B1HTTC751G without requiring design changes or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM751G be used as a direct replacement for RK73B1HTTC751G in existing designs?

A: Yes. The substitute part is electrically and mechanically identical across all specified parameters. No design modification, PCB layout change, or re-qualification is required. Both parts meet AEC-Q200 automotive standards and carry identical compliance certifications.

Q: Are there any differences in the 0201 package format between these parts?

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

Q: What is the significance of the product status difference (Not For New Designs vs. Active)?

A: The main part (RK73B1HTTC751G) is no longer recommended for new design implementations. The substitute part (RK73B1HTTCM751G) is actively manufactured and supported, ensuring continued availability and supply chain reliability for both new and existing applications.

Q: Do both parts have the same moisture sensitivity and handling requirements?

A: Yes. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating identical handling, storage, and assembly requirements. No additional precautions are necessary when substituting between these parts.

Q: Are the tolerance and temperature coefficient specifications identical?

A: Yes. Both parts specify ±2% tolerance and ±200ppm/°C temperature coefficient. They perform identically across the full operating temperature range of -55°C ~ 155°C.

Q: Is RoHS compliance identical between the two parts?

A: Yes. Both parts are ROHS3 compliant, meeting identical regulatory requirements for hazardous substance restrictions.