Standard Solutions
Silicon Avalanche Photodiodes and Modules
The silicon avalanche photodiode (Si APD) is a photon detection device that offers high internal gain. It is ideal for use in high speed, low light level applications. API also offers several patented large area configurations (LAAPD) enhanced for a variety of regions of the spectrum. These are available with built-in thermoelectric coolers to reduce the dark current and enhance performance. Package options include hermetically sealed windows or windowless configurations.
Technical data and operation of silicon avalanche photodiodes can be found in our application note section.
API Product Ordering Information
Cooled Large Area Silicon APDs
Part Number |
Packaging |
Active Area |
Features |
RoHS |
Buy Now |
|
SD197-70-72-591 |
TO-66 package |
5 mm diameter |
Red Enhanced |
— |
||
SD197-70-74-591 |
TO-66 package |
5 mm diameter |
Blue Enhanced |
— |
||
SD394-70-72-591 |
TO-3 package |
10 mm diameter |
Red Enhanced |
— |
||
SD394-70-74-591 |
TO-3 package |
10 mm diameter |
Blue Enhanced |
— |
Windowless Non-Cooled Large Area Silicon APDs
Part Number |
Packaging |
Active Area |
Features |
RoHS |
Buy Now |
|
SD630-70-72-500 |
SHV package |
16 mm diameter |
Red Enhanced |
— |
||
SD630-70-73-500 |
SHV package |
16 mm diameter |
UV Enhanced |
— |
||
SD630-70-74-500 |
SHV package |
16 mm diameter |
Blue Enhanced |
— |
||
SD630-70-75-500 |
SHV package |
16 mm diameter |
DUV Enhanced |
— |
Cooled Large Area Silicon APD Modules
Part Number |
Packaging |
Active Area |
Features |
RoHS |
Buy Now |
|
SD197-70-72-661 |
Module |
5 mm diameter |
Red Enhanced |
no |
||
SD197-70-74-661 |
Module |
5 mm diameter |
Blue Enhanced |
— |
||
SD394-70-72-661 |
Module |
10 mm diameter |
Red Enhanced |
no |
||
SD394-70-74-661 |
Module |
10 mm diameter |
Blue Enhanced |
no |









