diff --git a/modules/DESCR b/modules/DESCR
index ea4e381..35a4bb4 100644
--- a/modules/DESCR
+++ b/modules/DESCR
@@ -12,3 +12,7 @@ BAT-BLP2032SM: MPD Surface Mount Battery Holder for CR2032
 BAT-LP2032SM: MPD Surface Mount Battery Holder for CR2032
   Note: data sheet has contradictory information - check against real part.
 SW-CUS12B: Copal CUS-12B or C&K PCM12SMTR
+TL3315: E-Switch TL3315 series.
+  Use with SW4 symbol.
+EVQPQ: Panasonic EVQPQ and C&K PTS 530.
+  Use with SW4 symbol.