CSR1206FK47L0 Equivalent & Substitute Parts

Part Overview

The CSR1206FK47L0 is a 47 milliohm, ±1% tolerance, 0.5W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This current sense resistor is designed for precision low-resistance applications requiring stable performance across industrial temperature ranges. The part is active in production with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for high-reliability applications where component substitution may be necessary due to supply constraints or inventory management.

Substiute Parts

CSR1206FK47L0

Stackpole Electronics IncIn Stock: 805CSR1206FK47L0 Datasheet

Current PartRFQ

RLP73M2BR047FTDF

TE Connectivity Passive ProductIn Stock: 1416RLP73M2BR047FTDF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206FK47L0 is determined by strict equivalence across the following critical parameters:

• Resistance value: 47 mOhms
• Tolerance: ±1%
• Power rating: 0.5W minimum
• Package type: 1206 (3216 Metric)
• Composition: Thick Film
• Application class: Current Sense
• Operating temperature range: -55°C to 155°C minimum
• Compliance: RoHS3 and REACH requirements

The substitute part RLP73M2BR047FTDF from TE Connectivity Passive Product meets all mandatory electrical and mechanical parameters. Both parts share identical resistance, tolerance, power rating, package dimensions, and temperature operating range. Compliance certifications (RoHS3, REACH, EAR99) are equivalent, confirming direct substitutability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR1206FK47L0 and RLP73M2BR047FTDF are active production parts with equivalent compliance certifications (RoHS3 Compliant, REACH Unaffected, EAR99 classification). Selection between these parts should be based on:

Primary Selection Criteria:

• Availability and lead time requirements
• Inventory levels (CSR1206FK47L0: 731 pcs; RLP73M2BR047FTDF: 1359 pcs)
• Supplier preference and procurement agreements

Secondary Consideration: The RLP73M2BR047FTDF exhibits a higher temperature coefficient (±400 ppm/°C) compared to the CSR1206FK47L0 (±100 ppm/°C). In applications requiring maximum resistance stability across the full operating temperature range, the CSR1206FK47L0 provides superior performance. For general current sensing applications within standard industrial specifications, both parts are functionally equivalent.

Physical dimensions show minor variation (length: 3.05mm vs 3.10mm), which remains within standard PCB layout tolerances for 1206 package footprints.

Frequently Asked Questions (FAQ)

Q: Can RLP73M2BR047FTDF be used as a direct replacement for CSR1206FK47L0?

A: Yes. Both parts meet identical electrical specifications (47 mOhms, ±1%, 0.5W), operate across the same temperature range (-55°C to 155°C), use identical package geometry (1206), and carry equivalent compliance certifications. Direct substitution is supported at the circuit level.

Q: What is the significance of the temperature coefficient difference?

A: The CSR1206FK47L0 has a temperature coefficient of ±100 ppm/°C, while the RLP73M2BR047FTDF has ±400 ppm/°C. This means the Stackpole part maintains more stable resistance values across temperature variations. For precision current sensing applications operating across the full -55°C to 155°C range, the lower coefficient provides better accuracy. For standard applications, both coefficients are acceptable.

Q: Are there physical footprint compatibility concerns?

A: Both parts use the 1206 (3216 Metric) package with identical height (0.026" maximum). Length differs slightly (3.05mm vs 3.10mm), which is within standard PCB design tolerances for 1206 footprints. No layout modifications are required for substitution.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the CSR1206FK47L0 and RLP73M2BR047FTDF are RoHS3 Compliant, REACH Unaffected, and classified as EAR99. Moisture sensitivity level is identical (MSL 1 - Unlimited) for both parts.

Q: Which part should be selected for new designs?

A: Selection should be based on availability, lead time, and supplier relationships. Both parts are active in production. The CSR1206FK47L0 offers superior temperature stability, while the RLP73M2BR047FTDF provides higher inventory availability. Verify supplier support and procurement terms for your specific application timeline.