The SFH 3410 is a silicon NPN phototransistor manufactured by Texas Instruments, especially suitable for applications in the range of 350nm to 970nm. The product has a SMT package, no base pin, and is suitable for vapor phase and IR reflow soldering. It is only available on tape and reel.
The SF3410NPN‑Si is a silicon NPN phototransistor optimized for the human eye sensitivity (Vλ) and suitable for wavelengths between 350 nm and 970 nm. It features an SMT package without a base lead, allowing vapor‑phase and IR reflow soldering (JEDEC level 4) and is supplied on tape‑and‑reel.
Typical applications include ambient‑light detection, exposure meters, backlight‑dimming sensors and other control‑and‑drive circuits. The datasheet lists maximum ratings, electrical characteristics, directional and spectral sensitivity curves, as well as mechanical dimensions and legal safety information. This manual is written in German.
| Spectral sensitivity range | 350 nm – 970 nm |
|---|---|
| Peak wavelength (λSmax) | 570 nm |
| Active area (A) | 0.29 mm² |
| Package size (L × W) | 0.75 mm × 0.75 mm |
| Collector‑emitter voltage (VCE max) | 5.5 V |
| Collector current (IC max) | 20 mA |
| Dark current (ICEO) at VCE=5 V | < 50 nA |
| Photocurrent (IPCE) at Ev=20 lx, VCE=5 V | > 3.2 µA |
| Capacitance (CCE) at VCE=0 V, f=1 MHz | 16 pF |
| Half‑angle (φ) | ± 60° |
The device is sensitive from 350 nm to 970 nm.
The maximum VCE is 5.5 V.
The peak sensitivity occurs at 570 nm.