RN73C1J1K0ATDF Equivalent & Substitute Parts

Part Overview

The RN73C1J1K0ATDF is a 1 kOhms ±0.05% thin film chip resistor manufactured by TE Connectivity Passive Product in the 0603 (1608 Metric) package. This component is rated for 0.063W (1/16W) power dissipation with a temperature coefficient of ±10ppm/°C and operates across the temperature range of -55°C to 155°C. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and is currently in active production status.

Substitute parts are necessary when the original component becomes unavailable, when design requirements demand enhanced performance specifications, or when automotive-grade certifications are required for specific applications. The substitute parts listed maintain electrical compatibility while offering improved tolerance, power ratings, or automotive qualification.

Substiute Parts

RN73C1J1K0ATDF

TE Connectivity Passive ProductIn Stock: 745RN73C1J1K0ATDF Datasheet

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ERA-3ARW102V

Panasonic Electronic ComponentsIn Stock: 23964ERA-3ARW102V Datasheet

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RG1608N-102-P-T1

SusumuIn Stock: 1477RG1608N-102-P-T1 Datasheet

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RG1608N-102-W-T5

SusumuIn Stock: 5896RG1608N-102-W-T5 Datasheet

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RG1608V-102-P-T1

SusumuIn Stock: 35050RG1608V-102-P-T1 Datasheet

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RNCF0603TKY1K00

Stackpole Electronics IncIn Stock: 21309RNCF0603TKY1K00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN73C1J1K0ATDF is permissible when the following electrical and mechanical parameters are maintained or improved:

Critical Parameters for Substitution:

• Resistance value: 1 kOhms (exact match required)
• Package type: 0603 (1608 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or wider range acceptable)
• RoHS compliance: ROHS3 Compliant (equal or higher standard acceptable)
• Moisture sensitivity: MSL 1 (equal or lower MSL acceptable)

Parameters Permitting Upgrade:

• Tolerance: ±0.05% or tighter (lower tolerance values represent improved performance)
• Power rating: 0.063W or higher (higher power ratings provide design margin)
• Temperature coefficient: ±10ppm/°C or lower (lower values indicate improved stability)

All substitute parts listed maintain the critical parameters while offering equal or enhanced performance in tolerance, power rating, and temperature coefficient specifications. Automotive AEC-Q200 certification is available in substitute options but is not required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Equivalent Performance):

ERA-3ARW102V and RG1608N-102-W-T5 maintain the same tolerance specification (±0.05%) as the RN73C1J1K0ATDF while providing increased power rating (0.1W versus 0.063W). Both parts are ROHS3 compliant with MSL 1 rating. ERA-3ARW102V carries Panasonic automotive AEC-Q200 certification. RG1608N-102-W-T5 includes anti-sulfur features and Susumu AEC-Q200 certification. These parts are suitable for direct replacement in applications where the original component is unavailable.

Enhanced Performance Substitution (Improved Specifications):

RG1608N-102-P-T1 and RG1608V-102-P-T1 offer tighter tolerance (±0.02%) compared to the original specification. RG1608V-102-P-T1 additionally provides improved temperature coefficient (±5ppm/°C versus ±10ppm/°C), resulting in superior temperature stability. Both Susumu parts include anti-sulfur features and AEC-Q200 certification with 0.1W power rating.

RNCF0603TKY1K00 from Stackpole Electronics provides the tightest tolerance specification (±0.01%) with improved temperature coefficient (±5ppm/°C). This part is suitable for precision applications requiring superior tolerance and thermal stability while maintaining ROHS3 compliance and AEC-Q200 automotive certification.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating. Automotive applications benefit from AEC-Q200 certification available in all substitute options. The RN73C1J1K0ATDF lacks automotive certification; substitution with AEC-Q200 certified parts is appropriate for automotive-grade designs.

Frequently Asked Questions (FAQ)

Q: Can ERA-3ARW102V replace RN73C1J1K0ATDF in any application?

A: ERA-3ARW102V is electrically and mechanically compatible with RN73C1J1K0ATDF. Both parts share identical resistance (1 kOhms), tolerance (±0.05%), package (0603), composition (thin film), and operating temperature range (-55°C to 155°C). ERA-3ARW102V provides higher power rating (0.1W versus 0.063W), which represents a design improvement. The primary difference is Panasonic's AEC-Q200 automotive certification in ERA-3ARW102V, which is not present in the original part.

Q: What is the difference between RG1608N-102-P-T1 and RG1608V-102-P-T1?

A: Both parts are manufactured by Susumu with identical resistance (1 kOhms), tolerance (±0.02%), power rating (0.1W), and package (0603). The primary difference is temperature coefficient: RG1608N-102-P-T1 has ±10ppm/°C while RG1608V-102-P-T1 has ±5ppm/°C. RG1608V-102-P-T1 provides superior temperature stability, making it suitable for precision applications requiring minimal resistance drift across the operating temperature range.

Q: Is RNCF0603TKY1K00 suitable for high-precision applications?

A: RNCF0603TKY1K00 from Stackpole Electronics offers the tightest tolerance (±0.01%) and improved temperature coefficient (±5ppm/°C) among all listed substitutes. These specifications make it suitable for precision measurement circuits, reference networks, and applications requiring minimal tolerance stack-up and thermal drift.

Q: Do all substitute parts have the same physical dimensions as RN73C1J1K0ATDF?

A: All substitute parts use the 0603 (1608 Metric) package. The RN73C1J1K0ATDF has dimensions of 0.061" L x 0.031" W (1.55mm x 0.80mm) with maximum seated height of 0.022" (0.55mm). Susumu parts (RG series) have dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) with maximum seated height of 0.020" (0.50mm). RNCF0603TKY1K00 matches the original dimensions exactly at 0.061" L x 0.031" W (1.55mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. These dimensional variations are within standard 0603 package tolerances and do not affect PCB layout compatibility.

Q: What is the advantage of anti-sulfur features in Susumu RG series resistors?

A: Anti-sulfur features in RG1608N-102-P-T1, RG1608N-102-W-T5, and RG1608V-102-P-T1 provide enhanced reliability in environments with sulfur-containing contaminants. This feature is particularly beneficial in industrial and automotive applications where exposure to sulfurous compounds may occur. The RN73C1J1K0ATDF does not specify anti-sulfur treatment.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of RN73C1J1K0ATDF. This ensures compatibility with modern manufacturing processes and environmental regulations.

Q: Which substitute part offers the best overall performance upgrade?

A: RG1608V-102-P-T1 provides a comprehensive performance upgrade with ±0.02% tolerance, ±5ppm/°C temperature coefficient, 0.1W power rating, anti-sulfur features, and AEC-Q200 certification. This part maintains the same physical dimensions as the original while delivering superior tolerance, thermal stability, and reliability characteristics.