RK73B1HTTC754G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC754G is a 750 kOhms ±2% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W (1/20W) power dissipation. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73B1HTTC754G

KOA Speer Electronics, Inc.In Stock: 681RK73B1HTTC754G Datasheet

Current PartRFQ

RK73B1HTTCM754G

KOA Speer Electronics, Inc.In Stock: 961RK73B1HTTCM754G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC754G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 750 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 type: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

The substitute part RK73B1HTTCM754G meets all specified parameters and is classified as "Active" product status, making it suitable for new production applications where the original part is no longer recommended.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM754G is the direct equivalent substitute for RK73B1HTTC754G. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73B series, and provide identical electrical performance and mechanical compatibility.

Selection Basis:

1. Electrical Equivalence: All resistance, tolerance, power rating, and temperature coefficient specifications are identical between the original and substitute part.

2. Mechanical Compatibility: Both parts utilize the 0201 (0603 Metric) package with identical dimensions and termination configuration, ensuring direct PCB footprint compatibility without layout modifications.

3. Compliance Alignment: Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating, satisfying automotive and environmental regulatory requirements.

4. Product Status: The substitute part RK73B1HTTCM754G carries "Active" product status, making it the appropriate choice for new production designs and ongoing component procurement where the original "Not For New Designs" part is no longer recommended.

5. Thermal Performance: Identical operating temperature range (-55°C ~ 155°C) and temperature coefficient (±200ppm/°C) ensure equivalent performance across all specified environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM754G be used as a direct replacement for RK73B1HTTC754G in existing designs?

A: Yes. The substitute part is electrically and mechanically identical to the original part. All critical parameters including resistance value, tolerance, power rating, package dimensions, and automotive certifications are equivalent. Direct substitution is possible without circuit redesign or PCB layout modification.

Q: What is the difference between RK73B1HTTC754G and RK73B1HTTCM754G?

A: The primary difference is product status. RK73B1HTTC754G is classified as "Not For New Designs," while RK73B1HTTCM754G is "Active." Both parts are manufactured by KOA Speer Electronics, Inc., and share identical electrical and mechanical specifications. The substitute part is recommended for new production applications.

Q: Are both parts suitable for automotive applications?

A: Yes. Both RK73B1HTTC754G and RK73B1HTTCM754G meet AEC-Q200 automotive qualification standards and are suitable for automotive circuit applications requiring 750 kOhms ±2% resistors in 0201 package format.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the 0201 (0603 Metric) package with identical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). No PCB layout modifications are required.

Q: Are there any environmental or compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Environmental and regulatory compliance is identical.

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

A: The temperature coefficient for both parts is ±200ppm/°C. This specification is identical and ensures equivalent resistance stability across the operating temperature range of -55°C to 155°C.

Q: Can I use these parts interchangeably in high-reliability applications?

A: Yes. Both parts carry AEC-Q200 automotive qualification, which certifies reliability for automotive-grade applications. The electrical and mechanical specifications are identical, supporting interchangeable use in high-reliability circuits.