SRD 00314X SRD 00315X is a PIN photodiode made of InGaAs / InP, designed for telecommunications applications. It is a sensitive receiver for the 2nd optical window (1300 nm) and suitable for bit rates up to 1.2 Gbit/s. It has low junction and low package capacitance, fast switching times, low dark current and low noise. The device is hermetically sealed in a 3-pin metal case with a single-mode fiber connector.
The Siemens SRD 00314X and SRD 00315X are ternary InGaAs/InP PIN photodiodes with a blocking filter for a 3" optical window. They are designed for telecommunications applications, supporting bit rates up to 1.2 Gbit/s and featuring low junction capacitance, fast switching, low dark current and low noise.
The datasheet provides maximum ratings, optical characteristics, capacitance curves, and package dimensions, along with ordering codes for different connector types (pigtail, DIN, FC/PC). These details help users select the appropriate variant for their optical fiber system.
| Forward current (Ir) | 10 mA |
|---|---|
| Reverse voltage (Vr) | 20 V |
| Maximum radiant power into port | 1 mW |
| Spectral sensitivity | 0.80 A/W at 1310 nm |
| Rise/fall time (10‑90%) | 0.3 ns |
| Total capacitance | < 1.5 pF |
| Dark current | < 50 nA |
| Optical attenuation (34 window CRT) | -50 dB |
| Back‑reflection | < ‑30 dB |
The photodiode can handle a forward current of up to 10 mA.
It is rated for a reverse voltage of 20 V.
The rise and fall time (10 %‑90 %) is 0.3 ns (typical).