RK73H1HTTC6804F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC6804F is a 6.8 MOhms ±1% 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 with moisture-resistant construction. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for ongoing support of existing designs, maintenance applications, and inventory management where this resistor value and package combination is required.

Substiute Parts

RK73H1HTTC6804F

KOA Speer Electronics, Inc.In Stock: 4341RK73H1HTTC6804F Datasheet

Current PartRFQ

RK73H1HTTCM6804F

KOA Speer Electronics, Inc.In Stock: 1171RK73H1HTTCM6804F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC6804F is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Non-negotiable):

• Resistance value: 6.8 MOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Non-negotiable):

• Package type: 0201 (0603 Metric)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Height seated (max): 0.010" (0.26mm)
• Number of terminations: 2

Composition & Features (Non-negotiable):

• Composition: Thick Film
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1

The substitute part RK73H1HTTCM6804F meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM6804F is the direct substitute for the RK73H1HTTC6804F. Selection of the substitute part is based on the following engineering factors:

Product Status Consideration: The main part RK73H1HTTC6804F carries a "Not For New Designs" status, indicating manufacturer discontinuation or transition. The substitute RK73H1HTTCM6804F maintains "Active" product status, ensuring ongoing availability and manufacturer support.

Compliance & Certification: Both parts maintain identical compliance profiles including ROHS3 compliance, AEC-Q200 automotive qualification, and REACH unaffected status. This ensures regulatory requirements are maintained across substitution.

Electrical & Mechanical Equivalence: All critical parameters including resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package dimensions, and composition are identical between the main part and substitute. This ensures direct functional equivalence without circuit redesign or PCB layout modification.

Moisture & Environmental Protection: Both parts feature identical moisture-resistant construction and MSL 1 rating, maintaining environmental protection characteristics required for the application.

The substitute part RK73H1HTTCM6804F can be selected as a direct replacement without any design, layout, or qualification modifications.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM6804F be used as a direct replacement for RK73H1HTTC6804F?

A: Yes. The RK73H1HTTCM6804F is a direct functional equivalent. All electrical parameters (6.8 MOhms ±1%, 0.05W, ±200ppm/°C), mechanical parameters (0201 package, identical dimensions), composition (thick film), and certifications (AEC-Q200, ROHS3, MSL 1) are identical. No circuit redesign or PCB layout modification is required.

Q: Why is the main part marked "Not For New Designs"?

A: The "Not For New Designs" status indicates the manufacturer has transitioned this part number to a newer equivalent. The substitute part RK73H1HTTCM6804F carries "Active" status and represents the current production equivalent, ensuring long-term availability and manufacturer support.

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

A: Both parts share identical physical dimensions (0.024" L x 0.012" W, 0.60mm x 0.30mm) and identical MSL 1 rating, which specifies unlimited shelf life under normal storage conditions. No differences in handling, storage, or packaging requirements exist.

Q: Will substitution affect circuit performance or reliability?

A: No. Identical electrical parameters (resistance value, tolerance, temperature coefficient, operating temperature range) and identical automotive qualification (AEC-Q200) ensure circuit performance and reliability remain unchanged. Both parts meet the same reliability and qualification standards.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both parts maintain identical ROHS3 compliance, REACH unaffected status, and identical ECCN/HTSUS classifications. Regulatory compliance is maintained across substitution.

Q: What is the significance of the MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life under normal storage conditions. Both parts carry this rating, meaning no special moisture control or baking procedures are required before use, provided standard storage conditions are maintained.

Q: Can the substitute part be used in automotive applications?

A: Yes. Both parts carry identical AEC-Q200 automotive qualification, confirming suitability for automotive applications with equivalent reliability and performance standards.