CSR1206FKR820 Equivalent & Substitute Parts

Part Overview

The CSR1206FKR820 is a 0.82 ohm, 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 tight tolerance and stable performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings align with the original component requirements.

Substiute Parts

CSR1206FKR820

Stackpole Electronics IncIn Stock: 758CSR1206FKR820 Datasheet

Current PartRFQ

CRM1206-FX-R820ELF

Bourns Inc.In Stock: 43299CRM1206-FX-R820ELF Datasheet

DirectRFQ

RCWE1206R820FKEA

Vishay DaleIn Stock: 25142RCWE1206R820FKEA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CSR1206FKR820 are qualified based on the following criteria:

Electrical Parameters: Resistance value of 820 mOhms, tolerance of ±1%, power rating of 0.5W, and temperature coefficient of ±100ppm/°C must match exactly.

Mechanical Parameters: Package designation of 1206 (3216 metric) with compatible physical dimensions and height specifications ensures PCB footprint compatibility.

Environmental Specifications: Operating temperature range of -55°C to 155°C, RoHS3 compliance, and MSL rating of 1 (Unlimited) must be maintained.

Composition & Features: Thick film construction with current sense capability must be preserved.

The following parts meet all substitution criteria:

• CRM1206-FX-R820ELF (Bourns Inc.) – Direct electrical and mechanical equivalent
• RCWE1206R820FKEA (Vishay Dale) – Direct equivalent with additional AEC-Q200 automotive qualification and moisture-resistant features

Parameter Comparison

Engineering Selection Recommendations

CRM1206-FX-R820ELF (Bourns Inc.) is a direct functional equivalent with identical electrical and mechanical specifications. This substitute maintains all compliance certifications and environmental ratings. Selection is appropriate for applications requiring standard industrial performance without automotive qualification requirements.

RCWE1206R820FKEA (Vishay Dale) is a qualified substitute with additional AEC-Q200 automotive qualification and moisture-resistant features. This part is suitable for automotive applications, harsh environments, or designs requiring enhanced reliability certifications. The maximum seated height of 0.028" (0.70mm) versus 0.026" (0.65mm) on the original part must be evaluated for PCB clearance constraints in space-limited designs.

Both substitutes maintain Active product status and full compliance with RoHS3 and REACH requirements.

Frequently Asked Questions (FAQ)

Q: Can CRM1206-FX-R820ELF be used as a direct replacement for CSR1206FKR820?

A: Yes. Both parts share identical resistance (820 mOhms), tolerance (±1%), power rating (0.5W), package (1206), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Electrical and mechanical compatibility is confirmed.

Q: What is the difference between the Bourns and Vishay Dale substitutes?

A: The Vishay Dale RCWE1206R820FKEA includes AEC-Q200 automotive qualification and moisture-resistant features not present in the Bourns CRM1206-FX-R820ELF. The Vishay part has a maximum seated height of 0.028" (0.70mm) compared to 0.026" (0.65mm) for both the original and Bourns substitute.

Q: Is the 0.002" (0.05mm) height difference between substitutes significant?

A: The height difference must be evaluated based on specific PCB design constraints. For most applications with standard clearance margins, this difference is acceptable. Designs with minimal vertical clearance should confirm compatibility with the taller Vishay part.

Q: Are all three parts RoHS3 compliant?

A: Yes. CSR1206FKR820, CRM1206-FX-R820ELF, and RCWE1206R820FKEA are all ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which substitute should be selected for automotive applications?

A: RCWE1206R820FKEA (Vishay Dale) is qualified for automotive use with AEC-Q200 certification and moisture-resistant construction. This part is the appropriate choice for automotive designs.

Q: Do all substitutes maintain the same current sense capability?

A: Yes. All three parts are specified as current sense resistors with identical electrical characteristics suitable for precision current measurement applications.