RMCF2512FT187K Equivalent & Substitute Parts

Part Overview

The RMCF2512FT187K is a 187 kOhms ±1% 1W chip resistor manufactured by Stackpole Electronics Inc in the 2512 (6432 Metric) package. This thick film resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently active in production with 1104 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are maintained across alternative manufacturers.

Substiute Parts

RMCF2512FT187K

Stackpole Electronics IncIn Stock: 1190RMCF2512FT187K Datasheet

Current PartRFQ

CRCW2512187KFKEG

Vishay DaleIn Stock: 3411CRCW2512187KFKEG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF2512FT187K is determined by strict equivalence across the following parameters:

• Resistance value: 187 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package designation: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

The CRCW2512187KFKEG from Vishay Dale meets all these criteria and is classified as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the RMCF2512FT187K and CRCW2512187KFKEG are active production parts with equivalent electrical and mechanical specifications. Selection between these parts may be based on:

• Availability: CRCW2512187KFKEG has higher inventory (3336 units) compared to RMCF2512FT187K (1104 units)
• Manufacturer preference: Stackpole Electronics Inc versus Vishay Dale
• Supply chain requirements or existing qualification documentation
• Minor dimensional variation in width (0.126" versus 0.124") is within standard manufacturing tolerance and does not affect PCB layout or functional performance

Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and identical electrical performance across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can CRCW2512187KFKEG be used as a direct replacement for RMCF2512FT187K?

A: Yes. Both parts share identical resistance, tolerance, power rating, package type, composition, temperature coefficient, operating temperature range, and automotive qualification. The width dimension difference (0.126" versus 0.124") is within standard manufacturing tolerance and does not impact PCB design or electrical function.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, AEC-Q200 qualified, and carry MSL 1 moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What is the significance of the 2512 package designation?

A: The 2512 package (6432 Metric) is the physical form factor that determines PCB footprint, soldering requirements, and mechanical fit. Both substitute parts use this identical package, ensuring compatibility with existing circuit board designs.

Q: Does the temperature coefficient affect substitution eligibility?

A: No. Both parts specify ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range. This parameter is identical and does not create substitution restrictions.

Q: Why is inventory status relevant to part selection?

A: While both parts are functionally equivalent, the CRCW2512187KFKEG has significantly higher stock availability. This may influence lead time and supply chain continuity for production requirements.