Equivalent & Substitute Parts for RK73H1HTTC75R0F

Part Overview

The RK73H1HTTC75R0F is a 75 Ohm, ±1% tolerance, 0.05W (1/20W) chip resistor in 0201 package (0.60mm x 0.30mm) manufactured by KOA Speer Electronics, Inc. This thick film resistor is designed for automotive applications with AEC-Q200 qualification and moisture resistance. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary for ongoing support of existing designs, inventory management, and procurement of functionally compatible alternatives from active product lines.

Substiute Parts

RK73H1HTTC75R0F

KOA Speer Electronics, Inc.In Stock: 66109RK73H1HTTC75R0F Datasheet

Current PartRFQ

RK73H1HTTCM75R0F

KOA Speer Electronics, Inc.In Stock: 1004RK73H1HTTCM75R0F Datasheet

MFR RecommendedRFQ

AC0201FR-0775RL

YAGEOIn Stock: 19532AC0201FR-0775RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC75R0F are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Primary Matching Parameters:

• Resistance value: 75 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

All identified substitute parts meet these criteria without exception. Substitutes differ only in manufacturer identity, product status (active vs. obsolete), and packaging format where explicitly noted.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM75R0F (KOA Speer Electronics, Inc.): This part is the manufacturer-recommended successor within the KOA product line. It maintains active product status and carries identical electrical specifications and AEC-Q200 automotive qualification. Selection of this part is appropriate for designs requiring continuity with the original KOA manufacturer. Note that moisture resistance is not explicitly specified for this variant, whereas the original part explicitly includes moisture resistance as a feature.

AC0201FR-0775RL (YAGEO): This part is an active product from YAGEO with full electrical and mechanical parameter equivalence to the original RK73H1HTTC75R0F. It carries AEC-Q200 qualification, moisture resistance, and ROHS3 compliance. This part is suitable for applications where multi-source qualification is required or where YAGEO supply chain availability is preferred. Both the original part and this substitute explicitly specify moisture resistance.

Both substitute parts are qualified for automotive applications and maintain compliance with all regulatory requirements of the original part.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM75R0F be used as a direct replacement for RK73H1HTTC75R0F?

A: Yes. Both parts share identical electrical specifications (75 Ohms, ±1%, 0.05W), package format (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The primary difference is product status: RK73H1HTTCM75R0F is active, while RK73H1HTTC75R0F is not for new designs. One specification difference exists: moisture resistance is explicitly stated for the original part but not specified for the successor variant.

Q: Can AC0201FR-0775RL from YAGEO replace the KOA part?

A: Yes. AC0201FR-0775RL meets all electrical and mechanical requirements of RK73H1HTTC75R0F. Both parts specify 75 Ohms ±1%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 qualification, and moisture resistance. The substitute is from a different manufacturer but carries equivalent certifications and performance characteristics.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by exact matching of: resistance value (75 Ohms), tolerance (±1%), power rating (0.05W), package format (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), automotive qualification (AEC-Q200), and compliance standards (ROHS3, MSL 1). All identified substitutes match these parameters without deviation.

Q: Are there packaging differences between these parts?

A: RK73H1HTTC75R0F and AC0201FR-0775RL are both supplied in Tape & Reel (TR) format. RK73H1HTTCM75R0F packaging format is not specified in available data. For procurement requiring specific packaging formats, this should be confirmed with the supplier.

Q: Do all three parts have the same moisture sensitivity level?

A: Yes. All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture bake-out requirements.

Q: Which part should be selected for new designs?

A: RK73H1HTTC75R0F is designated "Not For New Designs." For new designs, either RK73H1HTTCM75R0F (KOA continuation) or AC0201FR-0775RL (YAGEO equivalent) should be selected, as both carry active product status.