diff --git a/transistor/optocoupler_pc817.yaml b/transistor/optocoupler_pc817.yaml
new file mode 100644
index 0000000..f533bd9
--- /dev/null
+++ b/transistor/optocoupler_pc817.yaml
@@ -0,0 +1,38 @@
+name: PC817
+variations: DIP, SMD
+description: optocoupler, photocoupler
+
+pinout:
+  Anode: 1
+  Cathode: 2
+  Emitter: 3
+  Collector: 4
+
+schematic:
+  symbol: IC
+  options: optocoupler
+  left: Anode, Cathode
+  right: Collector, Emitter
+
+housing@DIP:
+  pattern: DIP
+  leadCount: 4
+  pitch: 2.54
+  bodyWidth: 6.5
+  bodyLength: 4.58
+  height: 4.0
+  leadWidth: 0.5
+  leadLength: 2.7
+  leadHeight: 0.26
+  leadSpan: 7.62
+
+housing@SMD:
+  pattern: SOP
+  height: 3.5
+  leadCount: 4
+  pitch: 2.54
+  bodyWidth: 6.5
+  bodyLength: 4.58
+  leadLength: 1.0
+  leadWidth: 1.2
+  leadSpan: 10.0