CSR1206JKR620 Equivalent & Substitute Parts

Part Overview

The CSR1206JKR620 is a 620 mOhms ±5% thick film chip resistor in 1206 (3216 Metric) package rated for 0.5W power dissipation. Manufactured by Stackpole Electronics Inc, this current sense resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). The part is currently active in production with 780 pieces in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while potentially offering improved specifications such as tighter tolerance, enhanced automotive qualification, or superior availability.

Substiute Parts

CSR1206JKR620

Stackpole Electronics IncIn Stock: 842CSR1206JKR620 Datasheet

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RCWE1206R620FKEA

Vishay DaleIn Stock: 18670RCWE1206R620FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206JKR620 is determined by the following mandatory parameters:

• Resistance value: 620 mOhms (exact match required)
• Package type: 1206 (3216 Metric) form factor
• Power rating: 0.5W minimum
• Composition: Thick film construction
• Temperature range: -55°C to 155°C minimum coverage
• Termination count: 2 terminations
• RoHS compliance: ROHS3 or equivalent

The RCWE1206R620FKEA from Vishay Dale meets all mandatory substitution criteria. While it offers tighter tolerance (±1% versus ±5%), this represents an upgrade in specification rather than a deviation, maintaining full functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RCWE1206R620FKEA qualifies as a direct substitute for the CSR1206JKR620 based on matching electrical specifications, identical package form factor, and equivalent environmental ratings. The substitute part offers improved tolerance specification (±1% versus ±5%) and includes automotive AEC-Q200 qualification with moisture-resistant construction, providing enhanced reliability margins for current sense applications.

Both parts maintain ROHS3 compliance, unlimited moisture sensitivity rating, and identical temperature coefficient performance across the -55°C to 155°C operating range. Dimensional variations (0.02" length and 0.002" height differences) remain within standard PCB layout tolerances for 1206 package footprints.

Frequently Asked Questions (FAQ)

Q: Can the RCWE1206R620FKEA replace the CSR1206JKR620 in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package form factor, and operating temperature range. The substitute offers tighter tolerance and automotive qualification without requiring design modification.

Q: What is the significance of the ±1% tolerance improvement in the substitute part?

A: The RCWE1206R620FKEA tolerance of ±1% compared to the original ±5% reduces resistance variation from ±31 mOhms to ±6.2 mOhms. This tighter tolerance improves current measurement accuracy in sensing applications.

Q: Are there dimensional compatibility concerns between these parts?

A: Dimensional differences are minimal. The substitute is 0.02" longer and 0.002" taller. Standard 1206 PCB footprints accommodate both parts without layout modification.

Q: Does the AEC-Q200 automotive qualification affect non-automotive applications?

A: No. AEC-Q200 qualification represents additional testing and reliability assurance. Non-automotive applications benefit from this enhanced qualification without penalty.

Q: Are both parts suitable for high-temperature current sensing?

A: Yes. Both parts operate across -55°C to 155°C with ±100ppm/°C temperature coefficient, meeting requirements for industrial and automotive current sense applications across the full temperature range.