# RN1409,LF (Component)

## Description

NPN pre\-biased \(bias resistor built\-in\) bipolar transistor, R1 = 47 kΩ series base resistor \(pin 1 B to internal base\), R2 = 22 kΩ internal base\-emitter resistor; VCBO 50 V, VCEO 50 V, VEBO 15 V, IC 100 mA, PC 200 mW, Tj 150 °C, hFE min 70 @ 10 mA/5 V, fT 250 MHz\. Toshiba S\-Mini \(SC\-59 / TO\-236MOD / SOT\-346; DigiKey\-style package TO\-236\-3, SC\-59, SOT\-23\-3\)\. Pins: 1 = B, 2 = E, 3 = C

## Component Details

- **Owner:** jharwinbarrozo
- **Created:** 10/21/2026
- **Last Updated:** 10/25/2026
- **Visibility:** Public
- **Package or Case Code:** SOT\-23\-3
- **Implementation Details:** NPN pre\-biased BJT: internal R1=47 kΩ in series from pin 1 B to base; R2=22 kΩ from internal base to pin 2 E\. Pin 3 C\. VCBO/VCEO=50 V, VEBO=15 V\. Toshiba S\-Mini SC\-59 2\-3F1A; body 1\.5 × 2\.9 × 1\.1 mm nominal, lead span 2\.5 mm, pitch 0\.95 mm\.
- **Max Current:** 0\.1A
- **Manufacturer Name:** Toshiba
- **Power Rating:** 0\.2W
- **Manufacturer Part Number:** RN1409,LF
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/37ce4f7140bb152075c961ae89497c6a12931b5d9d30ce577170ef0f2a3d9628\.pdf
- **Part Type:** Transistor
- **Standard Symbol:** NPN Transistor
- **Symbol Style:** parametric\-v1
- **Purchase Url:** https://www\.digikey\.co\.uk/en/products/detail/toshiba\-semiconductor\-and\-storage/RN1409\-LF/4971323
- **Mount:** Surface Mount
- **Transistor Type:** NPN

## Distributor Pricing (qty 1)

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

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/rn1409lf/toshiba.html?utm_currency=USD&region=nac) | N/A | N/A |
| [Digi\-Key](https://www.digikey.com/en/products/detail/toshiba-semiconductor-and-storage/RN1409-LF/4971323) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C17348746.html) | $0\.0462 | 0 |
| [Mouser](https://www.mouser.com/en/ProductDetail/Toshiba/RN1409LF?qs=5pLaOnqdcwMFnwKcB%25252BJLrw%253D%253D) | $0\.20 | 0 |

- **Part Type:** Transistors
- **Sub-Type:** NPN
- **Manufacturer:** Toshiba
- **MPN:** RN1409,LF
- **Mount Type:** Surface Mount
- **Package / Case Code:** SOT\-23
- **Pin Count:** 3
- **Continuous Drain Current:** 100mA
## Pins

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

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*Generated from [https://flux\.ai/jharwinbarrozo/rn1409clf\~rso](https://flux.ai/jharwinbarrozo/rn1409clf~rso)*