RMCF2512FT5K49 Equivalent & Substitute Parts

Part Overview

The RMCF2512FT5K49 is a 5.49 kOhms ±1% 1W chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor meets automotive AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently in active production status with 693 units in stock. Substitute parts are necessary when primary inventory is unavailable, when design requirements mandate alternative manufacturers, or when supply chain optimization requires qualified alternatives meeting identical electrical and mechanical specifications.

Substiute Parts

RMCF2512FT5K49

Stackpole Electronics IncIn Stock: 790RMCF2512FT5K49 Datasheet

Current PartRFQ

ERJ-1TNF5491U

Panasonic Electronic ComponentsIn Stock: 24008ERJ-1TNF5491U Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RMCF2512FT5K49 is valid only when the replacement part maintains all critical electrical and mechanical parameters. The allowed substitution criteria are strictly limited to:

• Identical resistance value: 5.49 kOhms
• Identical tolerance: ±1%
• Identical power rating: 1W
• Identical package: 2512 (6432 Metric)
• Identical composition: Thick Film
• Identical temperature coefficient: ±100ppm/°C
• Identical operating temperature range: -55°C ~ 155°C
• Identical automotive qualification: AEC-Q200
• Identical RoHS compliance: ROHS3 Compliant
• Identical moisture sensitivity level: 1 (Unlimited)

The ERJ-1TNF5491U from Panasonic Electronic Components meets all these criteria and qualifies as a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RMCF2512FT5K49 is the primary selection for new designs due to its active production status. The ERJ-1TNF5491U from Panasonic qualifies as an electrical and mechanical equivalent but carries a "Not For New Designs" status, making it suitable only for legacy system support, field replacements, or applications where design freeze has already occurred. Both parts satisfy identical compliance requirements including AEC-Q200 automotive qualification, ROHS3 compliance, and REACH unaffected status. Physical dimension variance (0.02" length difference) falls within standard PCB layout tolerances for 2512 package footprints.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF5491U be used as a direct replacement for RMCF2512FT5K49 in new designs?

A: ERJ-1TNF5491U meets all electrical and mechanical specifications but is marked "Not For New Designs." Use RMCF2512FT5K49 for new designs. ERJ-1TNF5491U is appropriate for legacy system maintenance or field replacements only.

Q: Are there dimensional differences between these parts?

A: Length differs by 0.02" (0.10mm): RMCF2512FT5K49 is 6.30mm, ERJ-1TNF5491U is 6.40mm. Width and height are identical. This variance is within standard 2512 package tolerance and does not affect PCB footprint compatibility.

Q: Do both parts meet automotive requirements?

A: Yes. Both RMCF2512FT5K49 and ERJ-1TNF5491U carry AEC-Q200 qualification and operate across -55°C to 155°C with ±100ppm/°C temperature coefficient.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts RoHS compliant?

A: Yes. Both RMCF2512FT5K49 and ERJ-1TNF5491U are ROHS3 compliant and REACH unaffected.