RN731ETTP4701F25 Equivalent & Substitute Parts

Part Overview

The RN731ETTP4701F25 is a 4.7 kOhms ±1% thin film chip resistor in 0402 (1005 Metric) package rated for 0.063W (1/16W) power dissipation. Manufactured by KOA Speer Electronics, Inc., this component is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

RN731ETTP4701F25

KOA Speer Electronics, Inc.In Stock: 1041RN731ETTP4701F25 Datasheet

Current PartRFQ

RN73R1ETTP4701F25

KOA Speer Electronics, Inc.In Stock: 1083RN73R1ETTP4701F25 Datasheet

DirectRFQ

RG1005P-472-D-T10

SusumuIn Stock: 9416RG1005P-472-D-T10 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RN731ETTP4701F25 are qualified based on the following electrical and mechanical parameters:

• Resistance value: 4.7 kOhms (exact match required)
• Package / Case: 0402 (1005 Metric) (exact match required)
• Power rating: 0.063W (1/16W) minimum (exact match required)
• Composition: Thin Film (exact match required)
• Temperature coefficient: ±25ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C minimum (exact match required)
• Tolerance: ±1% or tighter (equal or better tolerance acceptable)
• RoHS compliance: ROHS3 Compliant (exact match required)
• MSL rating: 1 (Unlimited) (exact match required)

Substitute parts may include additional features such as automotive AEC-Q200 qualification or anti-sulfur properties, provided all core electrical and mechanical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

RN73R1ETTP4701F25 is the direct equivalent substitute from KOA Speer Electronics, Inc. This part maintains identical electrical and mechanical specifications while offering active product status and automotive AEC-Q200 qualification. Selection of this part is appropriate for applications requiring continuity with the original design.

RG1005P-472-D-T10 from Susumu is the manufacturer-recommended alternative. This part provides improved tolerance (±0.5% versus ±1%), automotive AEC-Q200 qualification, and anti-sulfur properties. The tighter tolerance and enhanced environmental protection make this part suitable for applications requiring higher precision or automotive-grade reliability. Both substitute parts are ROHS3 compliant and maintain the same operating temperature range and MSL rating as the original component.

Frequently Asked Questions (FAQ)

Q: Can RN73R1ETTP4701F25 be used as a direct replacement for RN731ETTP4701F25?

A: Yes. Both parts share identical resistance (4.7 kOhms), tolerance (±1%), power rating (0.063W), package (0402), composition (thin film), temperature coefficient (±25ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance ratings (ROHS3, MSL 1). The primary difference is product status: RN73R1ETTP4701F25 is active, while RN731ETTP4701F25 is obsolete.

Q: What is the advantage of RG1005P-472-D-T10 over the direct KOA equivalent?

A: RG1005P-472-D-T10 offers tighter tolerance (±0.5% versus ±1%) and anti-sulfur protection in addition to automotive AEC-Q200 qualification. These features provide enhanced precision and environmental resistance. All other core parameters remain equivalent.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All parts use the 0402 (1005 Metric) package with identical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm). PCB footprints are interchangeable.

Q: Do substitute parts require different handling or storage procedures?

A: No. All parts maintain MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling procedures remain unchanged.

Q: Can RG1005P-472-D-T10 be used in non-automotive applications?

A: Yes. RG1005P-472-D-T10 meets or exceeds all specifications required for the original RN731ETTP4701F25. Automotive qualification is an additional feature that does not restrict use in other applications.