MFS1/4DCT52R1241F Equivalent & Substitute Parts

Part Overview

The MFS1/4DCT52R1241F is a 1.24 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration. Manufactured by KOA Speer Electronics, Inc., this component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 1024 units available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the critical parameters that define functional interchangeability in circuit applications.

Substiute Parts

MFS1/4DCT52R1241F

KOA Speer Electronics, Inc.In Stock: 1134MFS1/4DCT52R1241F Datasheet

Current PartRFQ

MFR-25FBF52-1K24

YAGEOIn Stock: 7209MFR-25FBF52-1K24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MFS1/4DCT52R1241F is determined by strict equivalence across the following critical parameters:

• Resistance value: 1.24 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W, 1/4W (exact match required)
• Composition: Metal Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• Package configuration: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The MFR-25FBF52-1K24 manufactured by YAGEO meets all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the MFS1/4DCT52R1241F and MFR-25FBF52-1K24 are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts may be based on:

• Packaging format: MFS1/4DCT52R1241F is supplied in Cut Tape (CT) format; MFR-25FBF52-1K24 is supplied in Bulk format
• Physical dimensions: MFS1/4DCT52R1241F measures 0.067" Dia x 0.126" L (1.70mm x 3.20mm); MFR-25FBF52-1K24 measures 0.094" Dia x 0.248" L (2.40mm x 6.30mm)
• Inventory availability: MFS1/4DCT52R1241F has 1024 units in stock; MFR-25FBF52-1K24 has 7104 units in stock
• Automotive qualification: MFS1/4DCT52R1241F carries AEC-Q200 qualification; MFR-25FBF52-1K24 does not specify automotive qualification

Frequently Asked Questions (FAQ)

Q: Can MFR-25FBF52-1K24 be used as a direct replacement for MFS1/4DCT52R1241F?

A: Yes, the MFR-25FBF52-1K24 meets all electrical and mechanical substitution criteria. However, physical dimensions differ, and the MFS1/4DCT52R1241F carries AEC-Q200 automotive qualification while the YAGEO part does not specify this certification.

Q: What are the key differences between these two parts?

A: The primary differences are packaging format (Cut Tape vs. Bulk), physical dimensions, and automotive qualification status. All electrical parameters are identical.

Q: Are there any compatibility concerns with PCB layout or mounting?

A: The axial package configuration is identical for both parts, ensuring mechanical compatibility with standard through-hole PCB designs. Physical dimension differences should be verified against PCB hole spacing and component clearance requirements.

Q: Which part should be selected for automotive applications?

A: The MFS1/4DCT52R1241F is qualified to AEC-Q200 automotive standards. If automotive qualification is a design requirement, this part is the specified choice.

Q: What is the significance of the different physical dimensions?

A: The MFR-25FBF52-1K24 has larger physical dimensions (0.094" Dia x 0.248" L) compared to the MFS1/4DCT52R1241F (0.067" Dia x 0.126" L). This may affect PCB layout in space-constrained applications.