RK73H1HTTC5111D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC5111D is a 5.11 kOhms ±0.5% thick film chip resistor in 0201 package (0603 Metric) manufactured by KOA Speer Electronics, Inc. This component is rated for automotive applications under AEC-Q200 standard with moisture-resistant construction and operates across -55°C to 155°C temperature range.

The RK73H1HTTC5111D carries a product status designation of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for existing applications or legacy system support.

Substiute Parts

RK73H1HTTC5111D

KOA Speer Electronics, Inc.In Stock: 1032RK73H1HTTC5111D Datasheet

Current PartRFQ

RK73H1HTTCM5111D

KOA Speer Electronics, Inc.In Stock: 1236RK73H1HTTCM5111D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC5111D is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 5.11 kOhms
• Tolerance: ±0.5%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive rating: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: MSL 1

Substitute parts must maintain identical electrical performance, thermal characteristics, and environmental compliance. Physical dimensions and termination count must remain unchanged. Moisture-resistant construction is a required feature for substitution validity.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM5111D serves as the direct equivalent substitute for the RK73H1HTTC5111D. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73H series, and maintain identical electrical, thermal, and mechanical specifications.

The primary distinction between these parts is product lifecycle status. The RK73H1HTTC5111D is designated "Not For New Designs," while the RK73H1HTTCM5111D carries "Active" status. This indicates the substitute part represents the current production equivalent and is the recommended selection for ongoing applications.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and REACH regulatory status. Moisture-resistant thick film construction and MSL 1 rating ensure compatibility with standard handling and storage protocols. The substitute part maintains full functional and physical interchangeability with the original component.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM5111D be used as a direct replacement for RK73H1HTTC5111D?

A: Yes. Both components share identical resistance value (5.11 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive rating. Physical dimensions and termination configuration are unchanged.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: This designation indicates the RK73H1HTTC5111D has been superseded in the manufacturer's active product portfolio. The RK73H1HTTCM5111D represents the current production equivalent. For new designs and ongoing applications, the substitute part is the appropriate selection.

Q: Are there any differences in moisture handling between these parts?

A: No. Both components feature moisture-resistant construction and carry MSL 1 (Unlimited) rating, indicating identical moisture sensitivity characteristics and handling requirements.

Q: Do both parts meet automotive compliance standards?

A: Yes. Both the RK73H1HTTC5111D and RK73H1HTTCM5111D are AEC-Q200 qualified, ROHS3 compliant, and REACH unaffected, meeting automotive industry requirements.

Q: Is the 0201 package (0603 Metric) the same for both parts?

A: Yes. Both components use identical 0201 package with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm).

Q: What is the temperature coefficient specification for these resistors?

A: Both parts specify ±200ppm/°C temperature coefficient across the -55°C to 155°C operating range, ensuring stable resistance performance across automotive temperature extremes.