The SPCM-AQRH-14-FC is a high-performance single photon counting module from Excelitas Technologies. It features a unique silicon avalanche photodiode (SLiK) with a 180 µm diameter active area and unmatched detection uniformity. This specific model, designated by the '14' code, is optimized with a 10 ns output pulse width, a 24 ns dead time, and a maximum dark count rate of 100 counts per second. It includes a factory-installed FC fiber adapter for easy coupling to multimode optical fibers. The module operates from a single +5V supply and includes built-in protection against accidental light overload. It provides a TTL-level output pulse for every photon detected and supports gated operation.
| RoHS |
Compliant (EU Directive 2015/863/EU) |
| REACH |
Unaffected |
| Dead Time |
24ns |
| Wavelength Range |
400 - 1060nm |
| Optical Interface |
FC Fiber Adapter |
| Output Pulse Width |
10ns |
| Output Pulse Height |
2.2V |
| Active Area Diameter |
180µm |
| Dark Count Rate (Max) |
100cps |
| Electrical Connectors |
BNC (Signal and Gate) |
| Supply Current (Typical) |
0.4A |
| Supply Voltage (Nominal) |
5.0V DC |
| Maximum Count Rate (Typical) |
37Mcps |
| Operating Temperature (Case) |
5 to 70°C |
| Afterpulsing Probability (Typical) |
0.5% |
| Peak Photon Detection Efficiency (PDE) @ 650nm |
70% |