RK73H1HTTC3300F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3300F is a 330 Ohm ±1% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm × 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets AEC-Q200 automotive qualification standards with moisture-resistant construction.

The RK73H1HTTC3300F 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 for ongoing production support, field repairs, and design continuity where this resistor is currently deployed.

Substiute Parts

RK73H1HTTC3300F

KOA Speer Electronics, Inc.In Stock: 112048RK73H1HTTC3300F Datasheet

Current PartRFQ

RK73H1HTTCM3300F

KOA Speer Electronics, Inc.In Stock: 1173RK73H1HTTCM3300F Datasheet

MFR RecommendedRFQ

AC0201FR-07330RL

YAGEOIn Stock: 38486AC0201FR-07330RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC3300F are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 330 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package format: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3
• Moisture sensitivity level: MSL 1

All substitute parts listed maintain identical electrical specifications and physical dimensions. Substitution is valid across manufacturers where these parameters are matched. The primary distinction between substitute options is product status (active vs. obsolescence) and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

For Ongoing Production and Field Support:

The RK73H1HTTCM3300F (KOA Speer Electronics) is the primary recommended substitute. This part maintains identical electrical and mechanical specifications to the RK73H1HTTC3300F while carrying an "Active" product status. It is manufactured by the same supplier, ensuring consistency in process control, material composition, and performance characteristics. The RK73H1HTTCM3300F is currently in production with 1,089 units in stock.

For Cross-Manufacturer Substitution:

The AC0201FR-07330RL (YAGEO) provides a functionally equivalent alternative from a different manufacturer. All critical parameters—resistance, tolerance, power rating, package dimensions, temperature coefficient, operating range, and automotive qualification—are identical. YAGEO's AC series thick film resistor meets the same AEC-Q200 standard and RoHS3 compliance requirements. This part is available in higher inventory (38,385 units), providing supply chain flexibility.

Compliance Considerations:

Both substitute parts maintain ROHS3 compliance, AEC-Q200 automotive qualification, and MSL 1 moisture sensitivity rating. All three parts are suitable for applications requiring automotive-grade reliability in temperature-controlled and moisture-sensitive environments.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3300F directly replace RK73H1HTTC3300F in existing designs?

A: Yes. The RK73H1HTTCM3300F is electrically and mechanically identical to the RK73H1HTTC3300F. Both parts share the same resistance value (330 Ohms), tolerance (±1%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C). The primary difference is product status: RK73H1HTTCM3300F is active in production, while RK73H1HTTC3300F is marked "Not For New Designs."

Q: Is the YAGEO AC0201FR-07330RL compatible with applications designed for the KOA RK73H1HTTC3300F?

A: Yes. The AC0201FR-07330RL meets all electrical and mechanical specifications required for substitution. Both parts are 330 Ohm ±1% thick film resistors in 0201 package format with identical temperature coefficients, operating ranges, and AEC-Q200 automotive ratings. Cross-manufacturer substitution is valid where these parameters match.

Q: What is the significance of the "Not For New Designs" status on the RK73H1HTTC3300F?

A: "Not For New Designs" indicates that KOA Speer Electronics has discontinued active development and production of this specific part number. Existing inventory may remain available for a limited period, but the manufacturer recommends transitioning to active alternatives such as RK73H1HTTCM3300F for new designs and ongoing production. This status does not affect the performance or reliability of existing units.

Q: Are there any packaging differences between the substitute parts?

A: The RK73H1HTTC3300F and AC0201FR-07330RL are both supplied in Tape & Reel (TR) packaging. The RK73H1HTTCM3300F packaging specification is not provided in the available data. All three parts use identical 0201 (0603 Metric) package format with matching physical dimensions (0.024" L × 0.012" W, 0.60mm × 0.30mm) and maximum seated height (0.010", 0.26mm).

Q: Do all substitute parts meet automotive qualification requirements?

A: Yes. All three parts—RK73H1HTTC3300F, RK73H1HTTCM3300F, and AC0201FR-07330RL—carry AEC-Q200 automotive qualification and are rated for -55°C ~ 155°C operating temperature. All are ROHS3 compliant with MSL 1 moisture sensitivity rating, suitable for automotive and industrial applications requiring environmental reliability.

Q: What inventory considerations should guide part selection?

A: RK73H1HTTC3300F has 112,028 units in stock but is not recommended for new designs. RK73H1HTTCM3300F (1,089 units) is the preferred KOA alternative with active product status. AC0201FR-07330RL (38,385 units) offers the highest inventory availability and cross-manufacturer flexibility. Selection should balance immediate availability against long-term supply chain stability and product lifecycle status.