RK73G1HTTC2001D Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC2001D is a 2 kOhms ±0.5% 0.05W chip resistor in 0201 package (0603 Metric) manufactured by KOA Speer Electronics, Inc. This component is a thick film automotive-grade resistor certified to AEC-Q200 standards, designed for high-reliability applications requiring precision resistance values in compact form factors.

The RK73G1HTTC2001D carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part number to obsolescence or replacement. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support existing production requirements for systems currently utilizing this component.

Substiute Parts

RK73G1HTTC2001D

KOA Speer Electronics, Inc.In Stock: 736RK73G1HTTC2001D Datasheet

Current PartRFQ

RK73G1HTTCM2001D

KOA Speer Electronics, Inc.In Stock: 1033RK73G1HTTCM2001D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC2001D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 2 kOhms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°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)

Compliance & Certification:

• Automotive AEC-Q200 rating (exact match required)
• RoHS3 compliance (exact match required)
• Moisture Sensitivity Level 1 (exact match required)

Substitute parts must satisfy all parameters listed above without deviation. The primary distinction between the main part and substitute candidates is product status and availability, not electrical or mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

RK73G1HTTCM2001D is the direct substitute for RK73G1HTTC2001D. Both components are manufactured by KOA Speer Electronics within the RK73G series and share identical electrical, mechanical, and compliance specifications.

The primary distinction is product lifecycle status: RK73G1HTTC2001D is designated "Not For New Designs," while RK73G1HTTCM2001D maintains "Active" status. This indicates that KOA Speer Electronics continues to support and manufacture RK73G1HTTCM2001D for ongoing production requirements.

Both parts satisfy AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity requirements. Selection between these parts should be based on:

1. Supply Chain Continuity: RK73G1HTTCM2001D offers higher current inventory (1023 Pcs vs. 653 Pcs) and active manufacturing support.
2. Design Lifecycle: For new designs, RK73G1HTTCM2001D is the appropriate selection. For existing designs currently using RK73G1HTTC2001D, RK73G1HTTCM2001D provides direct functional equivalence.
3. Compliance Requirements: Both parts maintain identical compliance certifications and are suitable for automotive applications requiring AEC-Q200 qualification.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM2001D be used as a direct replacement for RK73G1HTTC2001D in existing designs?

A: Yes. RK73G1HTTCM2001D is electrically and mechanically identical to RK73G1HTTC2001D. Both components have the same resistance value (2 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±50ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive certification. No circuit modifications or re-qualification is required.

Q: Why is RK73G1HTTC2001D marked "Not For New Designs"?

A: "Not For New Designs" indicates that the manufacturer has transitioned this part number to end-of-life status. KOA Speer Electronics recommends using RK73G1HTTCM2001D for new design implementations. Existing designs may continue to use RK73G1HTTC2001D until inventory is depleted, after which RK73G1HTTCM2001D becomes the required substitute.

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

A: Both parts use identical 0201 (0603 Metric) package specifications. Physical dimensions, termination count, and seated height are identical. No PCB layout modifications are necessary when substituting between these parts.

Q: What compliance certifications apply to both parts?

A: Both RK73G1HTTC2001D and RK73G1HTTCM2001D are ROHS3 compliant, AEC-Q200 automotive qualified, and carry MSL 1 (Unlimited) moisture sensitivity rating. Both are suitable for automotive and high-reliability applications.

Q: Is there a difference in temperature performance between these parts?

A: No. Both parts have identical temperature coefficient (±50ppm/°C) and operating temperature range (-55°C ~ 155°C). Thermal performance and stability are equivalent.

Q: Which part should be selected for new production orders?

A: RK73G1HTTCM2001D should be selected for new production orders. This part maintains active manufacturing status and higher inventory availability. RK73G1HTTC2001D should be reserved for existing design support only.