Equivalent & Substitute Parts for RK73H1HTTC9101D

Part Overview

The RK73H1HTTC9101D is a 9.1 kOhms ±0.5% thick film chip resistor in 0201 package (0603 metric) rated for 0.05W (1/20W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC9101D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for existing applications and legacy system support.

Substiute Parts

RK73H1HTTC9101D

KOA Speer Electronics, Inc.In Stock: 930RK73H1HTTC9101D Datasheet

Current PartRFQ

RK73H1HTTCM9101D

KOA Speer Electronics, Inc.In Stock: 703RK73H1HTTCM9101D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC9101D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 9.1 kOhms (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)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (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 storage and handling 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 RK73H1HTTCM9101D is the manufacturer-recommended substitute for the RK73H1HTTC9101D. Both components are manufactured by KOA Speer Electronics, Inc. and belong to the RK73H series.

Substitution Basis:

The RK73H1HTTCM9101D maintains complete electrical and mechanical equivalence with the main part across all critical parameters: 9.1 kOhms resistance, ±0.5% tolerance, 0.05W power rating, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, and 0201 package format.

Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance certification. Both achieve Moisture Sensitivity Level 1 rating, indicating unlimited shelf life under standard storage conditions.

The primary distinction is product status: the RK73H1HTTC9101D is designated "Not For New Designs," while the RK73H1HTTCM9101D carries "Active" status. This designation reflects the manufacturer's product lifecycle management and indicates that the substitute part represents the current production offering for this electrical specification.

For applications requiring the 9.1 kOhms ±0.5% 0.05W 0201 thick film resistor with AEC-Q200 automotive qualification, the RK73H1HTTCM9101D provides direct functional and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM9101D be used as a direct replacement for the RK73H1HTTC9101D?

A: Yes. The RK73H1HTTCM9101D is the manufacturer-recommended substitute. Both parts are electrically and mechanically equivalent across all specified parameters, including resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package format, and automotive AEC-Q200 qualification.

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

A: The primary difference is product lifecycle status. The RK73H1HTTC9101D is marked "Not For New Designs," indicating it has been superseded. The RK73H1HTTCM9101D carries "Active" status and represents the current production equivalent. Both parts meet identical electrical and mechanical specifications.

Q: Are there any package or footprint differences?

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

Q: Do both parts meet automotive standards?

A: Yes. Both the RK73H1HTTC9101D and RK73H1HTTCM9101D carry AEC-Q200 automotive qualification and are suitable for automotive applications requiring this certification level.

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

A: Both parts carry Moisture Sensitivity Level 1 (MSL 1), which indicates unlimited shelf life. No special moisture control measures are required during storage or handling.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and meet current regulatory requirements for hazardous substance restrictions.

Q: Which part should be selected for new designs?

A: The RK73H1HTTCM9101D should be selected for new designs, as it carries "Active" product status. The RK73H1HTTC9101D is designated "Not For New Designs" and represents a superseded offering.