RK73G1HTTC2201F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC2201F is a 2.2 kOhms ±1% chip resistor manufactured by KOA Speer Electronics, Inc., designed for automotive applications with AEC-Q200 qualification. This 0201 package (0603 Metric) thick film resistor delivers 0.05W power rating with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C.

The RK73G1HTTC2201F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts ensures design continuity, maintains supply chain reliability, and provides access to actively supported alternatives with identical electrical and mechanical specifications.

Substiute Parts

RK73G1HTTC2201F

KOA Speer Electronics, Inc.In Stock: 1159RK73G1HTTC2201F Datasheet

Current PartRFQ

RK73G1HTTCM2201F

KOA Speer Electronics, Inc.In Stock: 1118RK73G1HTTCM2201F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC2201F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 2.2 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical & Package Parameters:

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

Compliance & Quality Parameters:

• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)
• Composition: Thick Film

Substitute parts must match all electrical specifications, maintain identical package geometry, and retain full automotive AEC-Q200 certification. Deviations in any of these parameters disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

RK73G1HTTCM2201F is the direct manufacturer-recommended substitute for RK73G1HTTC2201F. Both parts are manufactured by KOA Speer Electronics, Inc., within the RK73G series and share identical electrical, mechanical, and compliance specifications.

The primary distinction is product lifecycle status: RK73G1HTTC2201F is designated "Not For New Designs," while RK73G1HTTCM2201F maintains "Active" status. This indicates RK73G1HTTCM2201F receives ongoing manufacturer support, quality assurance, and supply chain continuity.

For new automotive designs requiring 2.2 kOhms ±1% 0.05W 0201 package resistors with AEC-Q200 qualification, RK73G1HTTCM2201F is the appropriate selection. For existing designs currently using RK73G1HTTC2201F, direct substitution with RK73G1HTTCM2201F presents no electrical, mechanical, or compliance risk, as all specified parameters remain identical.

Both parts maintain ROHS3 compliance, MSL 1 moisture sensitivity rating, and full automotive qualification across the -55°C to 155°C operating range.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM2201F be used as a direct replacement for RK73G1HTTC2201F in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 2.2 kOhms ±1% resistance, 0.05W power rating, 0201 package geometry, ±50ppm/°C temperature coefficient, -55°C to 155°C operating range, and AEC-Q200 automotive qualification. Direct substitution requires no circuit redesign or board layout modification.

Q: What is the significance of the "Not For New Designs" status on RK73G1HTTC2201F?

A: This designation indicates the part has been superseded in the manufacturer's active product portfolio. While existing inventory remains available and functional, KOA Speer Electronics recommends using RK73G1HTTCM2201F for new designs to ensure long-term supply availability and continued manufacturer support.

Q: Are there any package or footprint differences between these parts?

A: No. Both parts use the 0201 (0603 Metric) package 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 interchangeable.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RK73G1HTTC2201F and RK73G1HTTCM2201F carry AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating. They are suitable for automotive applications across the full -55°C to 155°C temperature range.

Q: What is the difference between the part numbers RK73G1HTTC2201F and RK73G1HTTCM2201F?

A: The part numbers differ only in the "M" designation within RK73G1HTTCM2201F. This letter indicates a revision or variant within the RK73G series. The "M" variant represents the current active production version, while the non-M version has been transitioned out of active manufacturing.