BC859B is a PNP bipolar junction transistor in a SOT23 surface-mounted package, designed for low-current, low-voltage applications such as audio frequency input stages. It has a collector-emitter voltage rating of 30 V, a collector current rating of 100 mA, and a total power dissipation of 250 mW. The device has a DC current gain (hFE) range of 220 to 475 at -2 mA collector current and -5 V collector-emitter voltage. The transition frequency is 100 MHz, and it features a noise figure of 4 dB at 1 kHz with 200 Hz bandwidth. Operating junction temperature extends from -65 °C to 150 °C, with thermal resistance from junction to ambient at 500 K/W. The part meets IEC 60134 for absolute maximum ratings and is RoHS compliant. The SOT23 package dimensions are 2.8 to 3.0 mm in length, 1.2 to 1.4 mm in width, and 0.9 to 1.1 mm in height.
BJT SOT23 30V PNP 0.25W 150C Product overview: BC859B from Fairchild (onsemi) is a Bipolar Transistor for signal amplification, switching, driver stages, discrete power control, and general electronic circuit design. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 30V, 0.25W, SOT23. Search-friendly keywords include transistor, BJT, switching, amplification, 30V, 0.25W, SOT23, Bipolar Transistor, Single Bipolar Transistors. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 276-BC859B can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 276-BC859B |
| Product Name | 30V 0.25W SOT23 Bipolar Transistor |
| Package Type | Bulk |
