CSR1206-0R007F1 Equivalent & Substitute Parts

Part Overview

The CSR1206-0R007F1 is a 7 mOhms ±1% 1W chip resistor in 1206 (3216 Metric) package manufactured by Riedon. This current sense, non-inductive metal element resistor is designed for precision low-resistance applications requiring stable performance across wide temperature ranges. The part is classified as Obsolete, making identification of active equivalent alternatives essential for ongoing production and design requirements.

Key Parameters

Parameter	Value
Resistance	7 mOhms
Tolerance	±1%
Power Rating	1W
Package / Case	1206 (3216 Metric)
Composition	Metal Element
Features	Current Sense, Non-Inductive
Operating Temperature Range	-55°C ~ 170°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for CSR1206-0R007F1 is determined by strict equivalence in the following parameters:

Resistance value: 7 mOhms
Tolerance: ±1%
Power rating: 1W
Package: 1206 (3216 Metric)
Composition: Metal Element
Features: Current Sense, Non-Inductive
Operating temperature range: -55°C ~ 170°C
Compliance: ROHS3 Compliant, REACH Unaffected

The substitute parts identified (CSRL1-0R007F1 and CSRL1-0R007F8) meet all critical electrical and mechanical parameters. Both are manufactured by Riedon in the CSRL series and maintain full compatibility with the original specification. The primary distinction between substitutes is packaging format and product status.

Parameter Comparison

Parameter	CSR1206-0R007F1	CSRL1-0R007F1	CSRL1-0R007F8
Manufacturer	Riedon	Riedon	Riedon
Resistance	7 mOhms	7 mOhms	7 mOhms
Tolerance	±1%	±1%	±1%
Power (Watts)	1W	1W	1W
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Metal Element	Metal Element	Metal Element
Features	Current Sense, Non-Inductive	Current Sense, Non-Inductive	Current Sense, Non-Inductive
Operating Temperature	-55°C ~ 170°C	-55°C ~ 170°C	-55°C ~ 170°C
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.122" L x 0.063" W (3.10mm x 1.60mm)	0.122" L x 0.063" W (3.10mm x 1.60mm)
Height - Seated (Max)	0.024" (0.60mm)	0.028" (0.70mm)	0.028" (0.70mm)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both CSRL1-0R007F1 and CSRL1-0R007F8 are direct functional equivalents to CSR1206-0R007F1. Selection between substitutes should be based on packaging requirements and inventory availability:

CSRL1-0R007F1 is supplied in Cut Tape (CT) format and is suitable for applications requiring individual component handling or lower-volume procurement. This part maintains Active product status with 739 units in stock.

CSRL1-0R007F8 is supplied in Tape & Reel (TR) format and is optimized for automated assembly processes and high-volume production. This part maintains Active product status with 17,815 units in stock, providing superior availability.

Both substitutes maintain full compliance with ROHS3 and REACH requirements. Dimensional variations (length 3.10mm vs. 3.20mm, height 0.70mm vs. 0.60mm) are within standard PCB layout tolerances for 1206 package footprints and do not affect electrical performance or thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can CSRL1-0R007F1 and CSRL1-0R007F8 be used interchangeably with CSR1206-0R007F1?

A: Yes. Both parts are electrically and mechanically equivalent. The primary difference is packaging format (Cut Tape vs. Tape & Reel) and minor dimensional variations that do not affect PCB compatibility or performance.

Q: What is the difference between CSRL1-0R007F1 and CSRL1-0R007F8?

A: Both parts are identical in electrical specifications and package type (1206). The distinction is packaging format: CSRL1-0R007F1 uses Cut Tape (CT) packaging, while CSRL1-0R007F8 uses Tape & Reel (TR) packaging. Selection depends on assembly process requirements and volume needs.

Q: Are there temperature coefficient differences between the main part and substitutes?

A: The CSR1206-0R007F1 specifies ±50ppm/°C temperature coefficient. CSRL1-0R007F1 specifies ±75ppm/°C. CSRL1-0R007F8 does not specify temperature coefficient in available data. Both substitutes operate within the same -55°C ~ 170°C temperature range and maintain ±1% tolerance across the operating window.

Q: Do the dimensional differences affect PCB layout?

A: Minor dimensional variations exist: CSR1206-0R007F1 is 3.20mm length vs. 3.10mm for CSRL series; height is 0.60mm vs. 0.70mm respectively. These differences are within standard 1206 package tolerances and do not require PCB footprint redesign.

Q: Are both substitutes RoHS and REACH compliant?

A: Yes. Both CSRL1-0R007F1 and CSRL1-0R007F8 are ROHS3 Compliant and REACH Unaffected, matching the compliance profile of the original CSR1206-0R007F1.

Q: Which substitute should be selected for new designs?

A: For new designs, CSRL1-0R007F8 is recommended due to Active product status, superior inventory availability (17,815 units), and Tape & Reel packaging optimized for automated manufacturing. CSRL1-0R007F1 remains available as an alternative for specific packaging requirements.

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