MF1/4DC6650F Equivalent & Substitute Parts

Part Overview

The MF1/4DC6650F is a 665 Ohms ±1% metal film through-hole resistor rated at 0.25W (1/4W) 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 1120 units available in bulk packaging. Substitute parts are identified to address packaging format requirements and inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

MF1/4DC6650F

KOA Speer Electronics, Inc.In Stock: 1145MF1/4DC6650F Datasheet

Current PartRFQ

MF1/4DCT52R6650F

KOA Speer Electronics, Inc.In Stock: 6044MF1/4DCT52R6650F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of MF1/4DC6650F is determined by equivalence across the following critical parameters:

• Resistance value: 665 Ohms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Composition: Metal Film
• Package case: Axial
• Physical dimensions: 0.091" Dia x 0.248" L (2.30mm x 6.30mm)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant

The identified substitute part MF1/4DCT52R6650F maintains complete electrical and mechanical equivalence. The only difference is the packaging format: the main part is supplied in bulk packaging, while the substitute is supplied in cut tape (CT) format. Both parts are manufactured by KOA Speer Electronics, Inc. and carry identical part specifications.

Parameter Comparison

Engineering Selection Recommendations

Both MF1/4DC6650F and MF1/4DCT52R6650F are active production components manufactured by KOA Speer Electronics, Inc. with identical electrical specifications and AEC-Q200 automotive qualification. Selection between these parts is determined by packaging requirements and procurement workflow:

• MF1/4DC6650F is appropriate for applications requiring bulk packaging format with 1120 units currently in stock.
• MF1/4DCT52R6650F is appropriate for applications requiring cut tape packaging format with 6016 units currently in stock.

Both parts maintain ROHS3 compliance and are suitable for automotive applications operating within the -55°C to 155°C temperature range. The choice between these parts does not affect circuit performance or reliability, as all electrical and mechanical parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can MF1/4DCT52R6650F be used as a direct replacement for MF1/4DC6650F?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: bulk versus cut tape. The substitute part maintains the same 665 Ohms resistance, ±1% tolerance, 0.25W power rating, metal film composition, axial package configuration, and AEC-Q200 automotive qualification.

Q: What is the difference between bulk and cut tape packaging?

A: Bulk packaging supplies components loose in a container, suitable for manual assembly or small-quantity applications. Cut tape packaging supplies components on continuous tape in specified quantities, suitable for automated pick-and-place assembly equipment. Both formats contain identical components with no electrical or mechanical differences.

Q: Are both parts suitable for automotive applications?

A: Yes. Both MF1/4DC6650F and MF1/4DCT52R6650F carry AEC-Q200 automotive qualification and are rated for operating temperatures from -55°C to 155°C. Both are ROHS3 compliant and suitable for automotive circuit applications.

Q: What determines whether a part can substitute for MF1/4DC6650F?

A: Substitution is determined by matching the following parameters: resistance value (665 Ohms), tolerance (±1%), power rating (0.25W), composition (metal film), package type (axial), physical dimensions (0.091" Dia x 0.248" L), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive qualification (AEC-Q200). Packaging format does not affect electrical substitutability.

Q: Which part should I select based on current inventory?

A: MF1/4DCT52R6650F has higher inventory availability (6016 units) compared to MF1/4DC6650F (1120 units). If packaging format is compatible with your assembly process, the cut tape version offers greater stock availability.