CRL1206-FV-R040ELF Equivalent & Substitute Parts

Part Overview

The CRL1206-FV-R040ELF is a 40 mOhms ±1% thick film chip resistor in 1206 (3216 Metric) package rated for 0.5W power dissipation. Manufactured by Bourns Inc., this component is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts with compatible electrical and mechanical specifications is necessary for ongoing design support and procurement continuity.

Substiute Parts

CRL1206-FV-R040ELF

Bourns Inc.In Stock: 808CRL1206-FV-R040ELF Datasheet

Current PartRFQ

CFN1206-FX-R040ELF

Bourns Inc.In Stock: 25095CFN1206-FX-R040ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CRL1206-FV-R040ELF is determined by the following critical parameters:

• Resistance Value: 40 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required for PCB compatibility)
• Minimum Power Rating: ≥0.5W (equal or higher rating acceptable)
• Compliance: ROHS3 Compliant, REACH Unaffected

The substitute part CFN1206-FX-R040ELF meets all critical electrical parameters and package requirements. While it features metal foil composition (versus thick film) and higher power rating (1W versus 0.5W), these represent functional improvements compatible with the original application.

Parameter Comparison

Engineering Selection Recommendations

The CFN1206-FX-R040ELF is a direct substitute for the obsolete CRL1206-FV-R040ELF based on the following factors:

• Both parts maintain identical resistance value (40 mOhms) and tolerance (±1%)
• Both are packaged in 1206 (3216 Metric) format with compatible footprints
• The substitute part is manufactured by the same supplier (Bourns Inc.), ensuring design continuity
• Both parts carry ROHS3 compliance and REACH Unaffected status
• The substitute part is currently in active production with substantial inventory availability (24,990 pcs), ensuring long-term procurement reliability
• The substitute's higher power rating (1W versus 0.5W) and extended operating temperature range (-55°C ~ 155°C) provide enhanced performance margins

Frequently Asked Questions (FAQ)

Q: Can CFN1206-FX-R040ELF be used as a direct replacement for CRL1206-FV-R040ELF?

A: Yes. Both parts share identical resistance (40 mOhms), tolerance (±1%), and 1206 package format. The substitute meets or exceeds all critical electrical and mechanical specifications.

Q: What is the difference in composition between these parts?

A: The main part uses thick film technology, while the substitute uses metal foil technology. Metal foil composition provides superior temperature coefficient performance (±100ppm/°C versus ±400ppm/°C).

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the 1206 (3216 Metric) package with identical length and width (0.126" L x 0.063" W). The substitute has a maximum seated height of 0.035" (0.90mm) compared to 0.028" (0.70mm) for the main part. This 0.007" difference is within standard PCB design tolerances.

Q: Is the higher power rating of the substitute part a concern?

A: No. A higher power rating (1W versus 0.5W) is a functional improvement that does not negatively impact circuit performance. The component will operate safely within the original design specifications.

Q: Are both parts compliant with current regulations?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.