Product Overview
Siliconix IRF830 500V 4.5A N-Channel Power MOSFET TO-220AB
Condition
Unused new old stock (NOS) in clean condition with straight leads. Markings legible: IRF830 with Siliconix logo and code Y28K DM. Sold each.
Ships same or next business day from our Idaho warehouse. Honest pricing, no nonsense.
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Product Overview
Siliconix IRF830 through-hole power MOSFET in a standard TO-220 package. Engineered for high-voltage, fast-switching applications such as switch-mode power supplies, motor controls, and inverter stages requiring up to 500V breakdown capability.
Key Features
- Drain-to-source breakdown voltage (V_DSS): 500 V
- Continuous drain current (I_D): 4.5 A at 25 °C
- Static drain-to-source on-resistance (R_DS(on)): 1.5 Ω maximum
- Power dissipation (P_D): 74 W at 25 °C
- Package type: 3-pin TO-220 with metal mounting tab
- Pinout configuration: Pin 1 Gate, Pin 2 Drain (connected to tab), Pin 3 Source
Applications
- Replacing failed primary-side switching transistors on bench power supplies or legacy switch-mode converters.
- High-voltage solid-state switching in custom tube audio power rails or strobe circuits.
- Motor driver circuits requiring 500V headroom for inductive spike management.
- Breadboard prototyping for maker projects involving high-voltage DC load switching.
Frequently Asked Questions
Is the mounting tab isolated from the pins?
No. The center pin (Pin 2, Drain) is electrically connected to the metal mounting tab. If mounting to a grounded heatsink, an insulating mica or sil-pad washer and bush are required.
What is the pin arrangement on this TO-220 package?
Facing the front printed side with leads pointing down, the pinout from left to right is Pin 1 (Gate), Pin 2 (Drain), and Pin 3 (Source).
What package footprint does this transistor drop into?
This unit is a standard 3-pin TO-220 through-hole format with standard 2.54 mm (0.1 in) lead spacing, matching JEDEC TO-220AB board footprints.
The IRF830 is an industry workhorse from the golden era of through-hole power conversion. Slot it in, sink the tab, and get your supply switching cleanly again.
