RMCF1206FT1M21 Equivalent & Substitute Parts

Part Overview

The RMCF1206FT1M21 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 designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently active in production with 658 pieces available in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, packaging format preferences, or supply chain considerations.

Substiute Parts

RMCF1206FT1M21

Stackpole Electronics IncIn Stock: 689RMCF1206FT1M21 Datasheet

Current PartRFQ

RMCF1206FG1M21

Stackpole Electronics IncIn Stock: 8943RMCF1206FG1M21 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 RMCF1206FT1M21 is determined by the following critical parameters:

• Resistance Value: 1.21 MOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.25W / 1/4W (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (minimum requirement)
• Termination Count: 2 (exact match required)
• RoHS Compliance: ROHS3 Compliant (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)

All identified substitute parts meet these core electrical and mechanical criteria. Variations in packaging format (Tape & Reel vs. Cut Tape), temperature coefficient, and physical dimensions within tolerance do not affect functional equivalence for this resistor category.

Parameter Comparison

Engineering Selection Recommendations

All four parts listed are functionally equivalent for applications requiring a 1.21 MOhms ±1% 0.25W 1206 chip resistor. Selection among these parts should be based on the following factors:

RMCF1206FT1M21 (Stackpole Electronics Inc, Tape & Reel): Primary specification. Automotive AEC-Q200 rated. Suitable for high-reliability automotive applications.

RMCF1206FG1M21 (Stackpole Electronics Inc, Cut Tape): Identical electrical specifications to the primary part. Cut Tape packaging is appropriate for lower-volume or manual assembly operations. Same manufacturer and AEC-Q200 rating.

CRCW12061M21FKEA (Vishay Dale, Tape & Reel): Equivalent electrical performance with improved temperature coefficient (±100ppm/°C vs. ±200ppm/°C). Slightly lower seated height (0.024" vs. 0.028"). Automotive AEC-Q200 rated. Higher inventory availability (29,755 pieces).

RC1206FR-071M21L (YAGEO, Tape & Reel): Equivalent electrical performance with improved temperature coefficient (±100ppm/°C). Moisture-resistant feature. Slightly different physical dimensions (3.10mm length vs. 3.20mm). All compliance certifications met.

All parts are ROHS3 compliant, MSL 1 (Unlimited), and suitable for the specified operating temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can RMCF1206FG1M21 be used as a direct replacement for RMCF1206FT1M21?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications (1.21 MOhms ±1%, 0.25W, AEC-Q200). The only difference is packaging format: RMCF1206FT1M21 is supplied in Tape & Reel, while RMCF1206FG1M21 is supplied in Cut Tape. Electrical performance and reliability are equivalent.

Q: What is the difference between CRCW12061M21FKEA and RMCF1206FT1M21?

A: Both parts meet the core electrical requirements (1.21 MOhms ±1%, 0.25W, 1206 package, AEC-Q200). CRCW12061M21FKEA has a superior temperature coefficient (±100ppm/°C vs. ±200ppm/°C) and lower seated height (0.024" vs. 0.028"). These differences do not affect functional equivalence in standard applications.

Q: Is RC1206FR-071M21L suitable for automotive applications?

A: RC1206FR-071M21L meets the electrical specifications required (1.21 MOhms ±1%, 0.25W, 1206 package). However, this part is not listed with AEC-Q200 automotive qualification. It features moisture-resistant composition and is suitable for general industrial applications. Verify automotive qualification requirements for your specific application.

Q: What are the physical dimension differences among these parts?

A: RMCF1206FT1M21, RMCF1206FG1M21, and CRCW12061M21FKEA have identical length and width (0.126" x 0.063" / 3.20mm x 1.60mm). RC1206FR-071M21L has a slightly shorter length (0.122" / 3.10mm). Seated heights vary: RMCF parts are 0.028" (0.70mm), CRCW is 0.024" (0.60mm), and RC is 0.026" (0.65mm). These variations are within standard 1206 package tolerances.

Q: Which part should be selected for maximum inventory availability?

A: CRCW12061M21FKEA has the highest inventory level at 29,755 pieces. RMCF1206FG1M21 has 8,852 pieces available. Both are suitable substitutes with equivalent electrical performance.