RK73B1HTTC910G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC910G is a 91 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 AEC-Q200 automotive qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the product line. Identification of equivalent substitute parts is necessary for ongoing support of existing designs and inventory management.

Substiute Parts

RK73B1HTTC910G

KOA Speer Electronics, Inc.In Stock: 1032RK73B1HTTC910G Datasheet

Current PartRFQ

RK73B1HTTCM910G

KOA Speer Electronics, Inc.In Stock: 834RK73B1HTTCM910G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC910G is determined by strict equivalence across the following critical parameters:

• Resistance Value: 91 Ohms (exact match required)
• Tolerance: ±2% (exact match required)
• Power Rating: 0.05W / 1/20W (exact match required)
• Package Format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±200ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Automotive Compliance: AEC-Q200 (exact match required)
• Regulatory Compliance: ROHS3, REACH Unaffected (exact match required)

Substitute parts must maintain identical electrical performance, thermal characteristics, and regulatory certifications. The primary distinction between the main part and its substitute is product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM910G is the direct substitute for RK73B1HTTC910G. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73B series and maintain identical electrical, thermal, and mechanical specifications. The primary distinction is product lifecycle status: RK73B1HTTC910G is designated "Not For New Designs," while RK73B1HTTCM910G carries "Active" status.

For applications requiring ongoing component availability and manufacturer support, RK73B1HTTCM910G is the appropriate selection. Both parts satisfy AEC-Q200 automotive qualification requirements and ROHS3 compliance mandates. Thermal performance, resistance tolerance, and operating temperature ranges are equivalent across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM910G be used as a direct replacement for RK73B1HTTC910G?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (91 Ohms), tolerance (±2%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C). Both meet AEC-Q200 automotive standards and ROHS3 compliance requirements.

Q: What is the difference between these two part numbers?

A: The primary difference is product lifecycle status. RK73B1HTTC910G is classified as "Not For New Designs," indicating it has been superseded. RK73B1HTTCM910G carries "Active" status, indicating current production and manufacturer support availability.

Q: Are there any package or footprint differences?

A: No. Both parts use identical 0201 package format (0603 metric equivalent) with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints are interchangeable.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73B1HTTC910G and RK73B1HTTCM910G are AEC-Q200 qualified and suitable for automotive applications within the specified operating temperature range of -55°C ~ 155°C.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.