BSZ042N04NSG
MOSFET N-CH 40V 40A TO220AB
Transistors Fets Mosfets Single
TO-220-3
OptiMOS™ 3
Active
$0.43 / unit (market reference)
MOQ: 704 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | BSZ042N04NSG |
| Package / Case | TO-220-3 |
| Mounting Type | Through Hole |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 40 V |
| Rds On (Max) | 4.2mOhm @ 20A, 10V |
| Vgs(th) (Max) | 4V @ 36µA |
| Gate Charge (Qg) | 46 nC @ 10 V |
| Input Capacitance (Ciss) | 3700 pF @ 20 V |
| Power Dissipation (Max) | 2.1W (Ta), 69W (Tc) |
| Supplier Device Package | TO-220AB |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
BSZ042N04NSG by Rochester Electronics, LLC is an N-channel power MOSFET rated at 40 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-220-3 package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 4.2mOhm @ 20A, 10V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for BSZ042N04NSG
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All Technical Specifications
| FET Type | N-Channel |
| Vgs (Max) | ±20V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 4V @ 36µA |
| Rds On (Max) @ Id, Vgs | 4.2mOhm @ 20A, 10V |
| Power Dissipation (Max) | 2.1W (Ta), 69W (Tc) |
| Gate Charge (Qg) (Max) @ Vgs | 46 nC @ 10 V |
| Drain to Source Voltage (Vdss) | 40 V |
| Input Capacitance (Ciss) (Max) @ Vds | 3700 pF @ 20 V |
| Current - Continuous Drain (Id) @ 25°C | 40A (Tc) |
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