RMCF1206FG1M21 Equivalent & Substitute Parts

Part Overview

The RMCF1206FG1M21 is a 1.21 MOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor is rated for automotive applications under AEC-Q200 standard with an operating temperature range of -55°C to 155°C. The part is currently active and available in cut tape packaging with 8852 pieces in stock. Substitute parts are necessary to address packaging format requirements, inventory availability, or manufacturer preference while maintaining electrical and mechanical compatibility.

Substiute Parts

RMCF1206FG1M21

Stackpole Electronics IncIn Stock: 8943RMCF1206FG1M21 Datasheet

Current PartRFQ

RMCF1206FT1M21

Stackpole Electronics IncIn Stock: 689RMCF1206FT1M21 Datasheet

DirectRFQ

CRCW12061M21FKEA

Vishay DaleIn Stock: 29862CRCW12061M21FKEA Datasheet

DirectRFQ

RC1206FR-071M21L

YAGEOIn Stock: 9500RC1206FR-071M21L Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF1206FG1M21 is determined by the following critical parameters:

• Resistance value: 1.21 MOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in packaging format (cut tape versus tape & reel), manufacturer, and secondary characteristics such as temperature coefficient do not affect functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and MSL 1 rating, confirming their suitability for direct replacement in applications requiring the RMCF1206FG1M21.

RMCF1206FT1M21 is the direct equivalent from Stackpole Electronics Inc, differing only in packaging format (tape & reel versus cut tape). Selection of this part is appropriate when tape & reel format is required for automated assembly processes.

CRCW12061M21FKEA from Vishay Dale maintains all critical electrical parameters and offers the highest inventory availability (29755 pieces). This part features a lower temperature coefficient (±100ppm/°C versus ±200ppm/°C) and reduced maximum seated height (0.024" versus 0.028"), which may provide advantages in space-constrained applications.

RC1206FR-071M21L from YAGEO is designated as an upgrade option. This part includes moisture-resistant features and also features a temperature coefficient of ±100ppm/°C. Dimensional variations include length of 0.122" (versus 0.126") and height of 0.026" (versus 0.028"), which remain within standard 1206 package tolerances.

Frequently Asked Questions (FAQ)

Q: Can RMCF1206FG1M21 be replaced with RMCF1206FT1M21?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc and share identical electrical specifications. The only difference is packaging format: RMCF1206FG1M21 is supplied in cut tape, while RMCF1206FT1M21 is supplied in tape & reel. Selection depends on assembly process requirements.

Q: Are cross-manufacturer substitutions electrically compatible?

A: Yes. CRCW12061M21FKEA (Vishay Dale) and RC1206FR-071M21L (YAGEO) maintain the same resistance value, tolerance, power rating, and package specification as the RMCF1206FG1M21. All parts are rated for the same operating temperature range and comply with ROHS3 standards.

Q: What is the significance of temperature coefficient differences?

A: The RMCF1206FG1M21 and RMCF1206FT1M21 have a temperature coefficient of ±200ppm/°C, while CRCW12061M21FKEA and RC1206FR-071M21L have ±100ppm/°C. This parameter describes resistance change over temperature. The lower coefficient in Vishay and YAGEO parts indicates tighter resistance stability across the operating temperature range, which may be beneficial in precision applications but is not required for functional interchangeability.

Q: Are there dimensional compatibility concerns?

A: All parts conform to the 1206 (3216 Metric) package standard. Minor dimensional variations exist: RC1206FR-071M21L has a length of 0.122" (versus 0.126" for other parts) and height of 0.026" (versus 0.028" maximum for Stackpole and 0.024" for Vishay). These variations remain within standard package tolerances and do not affect PCB footprint compatibility.

Q: Which substitute offers the best inventory availability?

A: CRCW12061M21FKEA from Vishay Dale has the highest inventory level at 29755 pieces in stock, compared to 8852 pieces for the original RMCF1206FG1M21 and 658 pieces for RMCF1206FT1M21.

Q: Are all substitutes suitable for automotive applications?

A: RMCF1206FG1M21, RMCF1206FT1M21, and CRCW12061M21FKEA are all rated to AEC-Q200 automotive standard. RC1206FR-071M21L does not carry an explicit AEC-Q200 rating in the provided specifications but maintains ROHS3 compliance and MSL 1 rating. Verification of automotive qualification requirements should be confirmed against application specifications.