MF1/4DC4021F Equivalent & Substitute Parts

Part Overview

The MF1/4DC4021F is a 4.02 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 1054 units available in bulk packaging. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical specifications, enabling procurement flexibility and supply chain optimization.

Substiute Parts

MF1/4DC4021F

KOA Speer Electronics, Inc.In Stock: 1110MF1/4DC4021F Datasheet

Current PartRFQ

MF1/4DCT52R4021F

KOA Speer Electronics, Inc.In Stock: 6183MF1/4DCT52R4021F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MF1/4DC4021F is determined by equivalence across the following critical parameters: resistance value (4.02 kOhms), 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). The identified substitute differs only in packaging format (cut tape versus bulk), which does not affect electrical performance or mechanical compatibility. Both parts maintain identical series designation (MF), product status (active), and regulatory compliance (ROHS3, REACH unaffected).

Parameter Comparison

Engineering Selection Recommendations

Both MF1/4DC4021F and MF1/4DCT52R4021F 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 procurement and assembly requirements rather than electrical performance. The bulk-packaged MF1/4DC4021F is suitable for high-volume manual assembly or reel-fed automated processes. The cut tape packaged MF1/4DCT52R4021F accommodates automated pick-and-place assembly systems and offers higher current inventory availability (6113 units versus 1054 units). Both parts maintain ROHS3 compliance and identical regulatory status, ensuring interchangeability in automotive applications without design modification.

Frequently Asked Questions (FAQ)

Q: Can MF1/4DCT52R4021F replace MF1/4DC4021F in circuit design? A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (cut tape versus bulk). No circuit design changes are required.

Q: What is the difference between bulk and cut tape packaging? A: Bulk packaging is supplied as loose components suitable for manual assembly or reel feeding. Cut tape packaging is pre-formatted on carrier tape for automated pick-and-place assembly systems. Electrical performance is identical.

Q: Are both parts AEC-Q200 qualified? A: Yes. Both MF1/4DC4021F and MF1/4DCT52R4021F meet AEC-Q200 automotive qualification standards and are suitable for automotive applications.

Q: Do these parts have identical physical dimensions? A: Yes. Both parts measure 0.091" diameter by 0.248" length (2.30mm x 6.30mm) and are compatible with identical PCB footprints and through-hole spacing.

Q: Which part should I select for automated assembly? A: MF1/4DCT52R4021F (cut tape) is optimized for automated pick-and-place assembly. MF1/4DC4021F (bulk) is suitable for manual assembly or reel-fed systems.

Q: Are both parts ROHS3 compliant? A: Yes. Both parts are ROHS3 compliant and meet current environmental regulations.