Equivalent & Substitute Parts for RK73H1HTTC6191D

Part Overview

The RK73H1HTTC6191D is a 6.19 kOhms ±0.5% chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant thick film construction.

The RK73H1HTTC6191D carries a "Not For New Designs" product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support ongoing production requirements for existing applications.

Substiute Parts

RK73H1HTTC6191D

KOA Speer Electronics, Inc.In Stock: 1130RK73H1HTTC6191D Datasheet

Current PartRFQ

RK73H1HTTCM6191D

KOA Speer Electronics, Inc.In Stock: 1157RK73H1HTTCM6191D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC6191D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 6.19 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 & Package Parameters:

• Package type: 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 (Max): 0.010" (0.26mm) (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Quality Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• Composition: Thick Film (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Substitute parts must satisfy all parameters listed above to ensure functional and mechanical compatibility within existing circuit designs and manufacturing processes.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM6191D is the qualified substitute for RK73H1HTTC6191D based on the following engineering criteria:

Product Status Advantage: The substitute part RK73H1HTTCM6191D carries an "Active" product status, whereas the main part is designated "Not For New Designs." This status difference indicates that the substitute part is currently supported by the manufacturer and represents the current production equivalent within the RK73H series.

Compliance & Certification Equivalence: Both parts maintain identical AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity rating. This ensures that the substitute part meets all regulatory and quality requirements applicable to the original component.

Electrical & Mechanical Compatibility: All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) and mechanical parameters (package type, physical dimensions, height, terminations) are identical between the main part and substitute. This ensures direct functional equivalence in circuit applications and manufacturing processes.

Supply Chain Continuity: With 1,130 pieces in stock compared to 1,072 pieces for the main part, the substitute provides improved availability for ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM6191D be used as a direct replacement for RK73H1HTTC6191D?

A: Yes. The RK73H1HTTCM6191D is electrically and mechanically equivalent to the RK73H1HTTC6191D. All critical parameters including resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package type, physical dimensions, and automotive AEC-Q200 certification are identical. Direct substitution is supported.

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

A: The "Not For New Designs" designation indicates that the RK73H1HTTC6191D is in the mature or end-of-life phase of its product lifecycle. The manufacturer recommends using the active equivalent, RK73H1HTTCM6191D, for new circuit designs. For existing applications using the main part, the substitute provides continuity of supply.

Q: Are there any differences in packaging between these two parts?

A: Both parts use identical 0201 (0603 Metric) package specifications with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). Packaging compatibility is complete.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73H1HTTC6191D and RK73H1HTTCM6191D are AEC-Q200 qualified automotive-grade resistors. They are suitable for automotive applications requiring this certification level.

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

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.

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

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications. Regulatory and compliance status is equivalent.