100 kOhms ±1% 0.25W Through Hole Resistor Axial MF1/4DC1003F

Part Overview

The MF1/4DC1003F is a 100 kOhms metal film through-hole resistor manufactured by KOA Speer Electronics, Inc. This component is rated for 0.25W (1/4W) power dissipation with ±1% tolerance and meets automotive AEC-Q200 qualification standards. The part maintains active product status with ROHS3 compliance and operates across the temperature range of -55°C to 155°C. Equivalent and substitute parts are identified to provide procurement flexibility while maintaining electrical and mechanical compatibility for axial through-hole applications.

Substiute Parts

MF1/4DC1003F

KOA Speer Electronics, Inc.In Stock: 727MF1/4DC1003F Datasheet

Current PartRFQ

MF1/4DCVTR1003F

KOA Speer Electronics, Inc.In Stock: 3365MF1/4DCVTR1003F Datasheet

Parametric EquivalentRFQ

MFR-25FBF52-100K

YAGEOIn Stock: 44390MFR-25FBF52-100K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF1/4DC1003F are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

Electrical Parameters (Must Match):

• Resistance value: 100 kOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match):

• Package type: Axial through-hole
• Composition: Metal Film
• Physical dimensions: Compatible with 0.091" to 0.094" diameter and 0.248" length specifications

Compliance Parameters (Must Match):

• RoHS3 compliance
• REACH unaffected status

Substitute parts are grouped into two categories: parametric equivalents (identical specifications with different packaging) and similar parts (equivalent electrical performance with minor dimensional variations within tolerance).

Parameter Comparison

Engineering Selection Recommendations

MF1/4DCVTR1003F (KOA Speer Electronics) is a parametric equivalent suitable for direct substitution. This part maintains identical electrical specifications, physical dimensions, and automotive AEC-Q200 qualification as the primary MF1/4DC1003F. The only difference is packaging format (Cut Tape versus Bulk), which does not affect electrical or mechanical performance. Selection of this substitute is appropriate when Cut Tape packaging is preferred for automated assembly processes.

MFR-25FBF52-100K (YAGEO) is a similar substitute with equivalent electrical performance. This YAGEO part matches all critical electrical parameters and maintains the same operating temperature range and tolerance specifications. The diameter dimension is 0.094" compared to 0.091" for the KOA parts, representing a 0.003" increase within acceptable mechanical tolerance for standard through-hole PCB applications. This part does not carry explicit automotive AEC-Q200 certification in the provided data. Selection of this substitute is appropriate for non-automotive applications or where YAGEO qualification is acceptable.

Frequently Asked Questions (FAQ)

Q: Can MF1/4DCVTR1003F replace MF1/4DC1003F in production?

A: Yes. MF1/4DCVTR1003F is a parametric equivalent with identical electrical specifications, tolerance, power rating, temperature coefficient, and physical dimensions. The difference in packaging format (Cut Tape versus Bulk) does not affect component performance or PCB compatibility.

Q: Is MFR-25FBF52-100K suitable for automotive applications?

A: MFR-25FBF52-100K meets the electrical requirements for 100 kOhms ±1% 0.25W operation across -55°C to 155°C. However, the provided data does not indicate AEC-Q200 automotive qualification for this YAGEO part. Use in automotive applications should be evaluated against specific qualification requirements.

Q: What is the significance of the 0.003" diameter difference between KOA and YAGEO parts?

A: The MFR-25FBF52-100K has a 0.094" diameter compared to 0.091" for KOA parts. This 0.003" difference is within standard mechanical tolerance for through-hole resistor applications and does not affect PCB hole compatibility or electrical performance.

Q: Are all three parts RoHS3 compliant?

A: Yes. MF1/4DC1003F, MF1/4DCVTR1003F, and MFR-25FBF52-100K are all ROHS3 compliant and REACH unaffected.

Q: What determines whether a substitute part is acceptable?

A: Substitute acceptability is determined by matching resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package type (axial through-hole), composition (metal film), and compliance certifications. Dimensional variations within standard tolerance and packaging format differences do not affect substitutability.