CSR0603FKR430 Equivalent & Substitute Parts

Part Overview

The CSR0603FKR430 is a 430 mOhms ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.125W (1/8W) power dissipation. Manufactured by Stackpole Electronics Inc, this current sense resistor is designed for precision low-resistance applications requiring tight tolerance and stable performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to support supply chain continuity, design flexibility, and inventory optimization while maintaining identical electrical and mechanical specifications.

Substiute Parts

CSR0603FKR430

Stackpole Electronics IncIn Stock: 749CSR0603FKR430 Datasheet

Current PartRFQ

RLP73N1JR43FTDF

TE Connectivity Passive ProductIn Stock: 5012RLP73N1JR43FTDF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CSR0603FKR430 are qualified based on strict equivalence across all critical electrical and mechanical parameters. The substitution criteria are:

• Resistance value: 430 mOhms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 0.125W / 1/8W (exact match)
• Package: 0603 (1608 Metric) (exact match)
• Composition: Thick Film (exact match)
• Features: Current Sense (exact match)
• Temperature coefficient: ±300ppm/°C (exact match)
• Operating temperature range: -55°C ~ 155°C (exact match)
• Physical dimensions: 0.063" L x 0.031" W / 1.60mm x 0.80mm (exact match)
• Height seated maximum: 0.022" / 0.55mm (exact match)
• Terminations: 2 (exact match)
• Regulatory compliance: RoHS3 Compliant, REACH Unaffected (exact match)

Only parts meeting all these criteria are listed as direct substitutes. No parameter deviation is permitted.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR0603FKR430 and RLP73N1JR43FTDF are Active products with full RoHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for industrial and commercial applications. Selection between these parts should be based on:

• Availability and lead time from respective manufacturers
• Supplier inventory levels and pricing
• Existing qualification history within your organization
• PCB assembly process compatibility with either manufacturer's specifications
• Long-term supply chain strategy and preferred vendor relationships

Both parts are electrically and mechanically interchangeable with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can RLP73N1JR43FTDF be used as a direct replacement for CSR0603FKR430 without PCB redesign?

A: Yes. Both parts are identical in electrical specifications (430 mOhms ±1%, 0.125W), physical dimensions (0603 package, 1.60mm x 0.80mm), and regulatory compliance. No PCB layout or schematic changes are required.

Q: Are there any differences in temperature performance between these two parts?

A: No. Both parts have identical temperature coefficient (±300ppm/°C) and operating temperature range (-55°C ~ 155°C).

Q: What is the significance of the 0603 (1608 Metric) package designation?

A: The 0603 package is a surface-mount chip resistor measuring 0.063" x 0.031" (1.60mm x 0.80mm) with a maximum seated height of 0.022" (0.55mm). This standardized package ensures mechanical compatibility across both parts for automated assembly equipment.

Q: Do both parts meet the same moisture sensitivity requirements?

A: Yes. Both parts have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

Q: Are there any compliance or certification differences between the two manufacturers?

A: No. Both parts are RoHS3 Compliant and REACH Unaffected, meeting identical regulatory standards for industrial applications.