SFH 309 FA-4 is a silicon NPN phototransistor in a radial T1 package with a black epoxy case, designed for applications in access control and appliances. It has a photocurrent range of 1120 to 1800 µA at V_CE = 5 V, λ = 950 nm, and E_e = 0.5 mW/cm², with a typical peak sensitivity at 900 nm and spectral response from 730 to 1120 nm. The device features a 12° half-angle, 5 pF collector-emitter capacitance, and a maximum collector current of 15 mA. It operates from -40°C to 100°C, supports up to 35 V collector-emitter voltage, and withstands 2 kV ESD per ANSI/ESDA/JEDEC JS-001 (HBM, Class 2). Dimensions are 9.2 mm diameter and 4.5 mm height, with a chip area of 0.45 mm x 0.45 mm. Total power dissipation is rated at 165 mW.
Phototransistor Top View Radial
| Rochester Electronics | |
|---|---|
| Product Category | Transistors |
| Product Number | SFH 309 FA-4 |
| Package Type | Black Epoxy - 2 |