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FKP253 Equivalent & Substitute Parts Reference
Part Overview
The Sanken Electric USA Inc. FKP253 is an N-channel MOSFET, categorized under Transistors, FETs, MOSFETs, housed in a TO-220-3 Full Pack package for through-hole mounting. This model is specified for a drain to source voltage (Vdss) of 250 V and a continuous drain current (Id) of 20A (Ta). The FKP253 is currently marked as "Not For New Designs", which necessitates evaluation and selection of suitable alternatives for ongoing product development and maintenance.
Substiute Parts
Key Parameters
| Parameter | FKP253 |
|---|---|
| Manufacturer | Sanken Electric USA Inc. |
| Category | Transistors, FETs, MOSFETs |
| Drain to Source Voltage (Vdss) | 250 V |
| Current - Continuous Drain (Id) @ 25°C | 20A (Ta) |
| Drive Voltage (Max Rds On, Min Rds On) | 10V |
| Rds On (Max) @ Id, Vgs | 95mOhm @ 10A, 10V |
| Vgs(th) (Max) @ Id | 4.5V @ 1mA |
| Vgs (Max) | ±30V |
| Input Capacitance (Ciss) (Max) @ Vds | 1600 pF @ 25 V |
| Power Dissipation (Max) | 40W (Tc) |
| Operating Temperature | 150°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 Full Pack |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitution is valid when the candidate MOSFET matches or exceeds the supplied electrical and mechanical parameters. Parameters governing substitution include: Drain to Source Voltage (Vdss), Continuous Drain Current (Id), Rds On (Max), Gate Threshold Voltage (Vgs(th)), Maximum Gate-Source Voltage (Vgs), Input Capacitance (Ciss), Power Dissipation, Operating Temperature, Mounting Type, and Package / Case. Substitute components listed meet these requirements and are available in through-hole TO-220-3 Full Pack package formats.
Parameter Comparison
| Parameter | FKP253 | FDPF33N25T | FDPF44N25T |
|---|---|---|---|
| Drain to Source Voltage (Vdss) | 250 V | 250 V | 250 V |
| Current - Continuous Drain (Id) @ 25°C | 20A (Ta) | 33A (Tc) | 44A (Tc) |
| Drive Voltage (Max Rds On, Min Rds On) | 10V | 10V | 10V |
| Rds On (Max) @ Id, Vgs | 95mOhm @ 10A, 10V | 94mOhm @ 16.5A, 10V | 69mOhm @ 22A, 10V |
| Vgs(th) (Max) @ Id | 4.5V @ 1mA | 5V @ 250µA | 5V @ 250µA |
| Vgs (Max) | ±30V | ±30V | ±30V |
| Input Capacitance (Ciss) (Max) @ Vds | 1600 pF @ 25 V | 2135 pF @ 25 V | 2870 pF @ 25 V |
| Power Dissipation (Max) | 40W (Tc) | 37W (Tc) | 38W (Tc) |
| Operating Temperature | 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-220-3 Full Pack | TO-220-3 Full Pack | TO-220-3 Full Pack |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The FKP253 main part is not intended for new designs according to its product status. The substitute parts, FDPF33N25T and FDPF44N25T from onsemi, are listed as "Active", ensuring continuity for applications requiring ongoing supply and support. All listed options meet RoHS compliance. Substitute devices utilize the equivalent TO-220-3 Full Pack package, supporting direct mechanical interchangeability, and are classified under ECCN EAR99.
Frequently Asked Questions (FAQ)
Q: What electrical parameters must be matched for substituting FKP253?
A: Substitution requires equivalence in drain to source voltage (Vdss), continuous drain current (Id), maximum Rds On, gate threshold voltage, and gate-source voltage rating.
Q: Are the substitute MOSFETs mechanically compatible with the FKP253?
A: All listed substitute parts utilize the TO-220-3 Full Pack package and through-hole mounting, matching the mechanical footprint of FKP253.
Q: Do substitute parts require environmental certification matching?
A: Substitute models FDPF33N25T and FDPF44N25T are ROHS3 Compliant, aligning with the RoHS Compliant status of FKP253.
Q: Is there any difference in power dissipation between the FKP253 and its substitutes?
A: The power dissipation ratings of the substitutes are 37W and 38W (Tc), which are comparable to the FKP253's 40W (Tc).
Q: What should be verified when selecting substitute MOSFETs for production use?
A: Confirm that the substitute part's electrical and mechanical parameters match the requirements of the original application and adhere to the specified package format.
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