# BUT11A (Component)

## Description

5A Ic, 450V Vce, Silicon Power NPN Transistors, TO\-220
NPN
1=B 2=C 3=E
High Voltage Power NPN Transistor
TO?220\* 

## Component Details

- **Owner:** kicad\-part\-library
- **Created:** 10/28/2026
- **Last Updated:** 10/28/2026
- **Visibility:** Public
- **Standard Symbol:** NPN Transistor
- **Package or Case Code:** TO\-220\-3\_Vertical
- **Manufacturer Part Number:** BUT11A
- **Part Type:** Transistor
- **Manufacturer Name:** ON Semiconductor
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/d8cfa3ded686d2f08db83f54db0aca6694213603ca9486a5d184e8784d4ca88a\.pdf

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Digi\-Key](https://www.digikey.com/en/products/detail/onsemi/BUT11A/975717) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/bipolar-bjt_onsemi-but11a_C3200980.html) | $0\.5382 | 27 |
| [Mouser](https://www.mouser.com/en/ProductDetail/onsemi/BUT11A?qs=WWddzyAYxco9NRy3p%252FZhHg%253D%253D) | N/A | N/A |
| [Verical](https://www.verical.com/pd/on-semiconductor-bjt---general-purpose-BUT11A-4544080?utm_currency=USD) | N/A | N/A |

- **Part Type:** Transistors
- **Sub-Type:** NPN
- **Manufacturer:** ON Semiconductor
- **MPN:** BUT11A
- **Package / Case Code:** 220\-TO
- **Pin Count:** 3
- **Drain To Source Voltage:** 450V
- **Continuous Drain Current:** 5A
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | B | Input |
| 2 | C | Passive |
| 3 | E | Passive |

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*Generated from [https://flux\.ai/kicad\-part\-library/but11a\~sin](https://flux.ai/kicad-part-library/but11a~sin)*