diff --git a/library/sensors.dcm b/library/sensors.dcm
index 2f8e10a9..f0044e2d 100644
--- a/library/sensors.dcm
+++ b/library/sensors.dcm
@@ -168,6 +168,12 @@ K digital temperature humidity sensor
 F http://akizukidenshi.com/download/ds/aosong/DHT11.pdf
 $ENDCMP
 #
+$CMP DS1621S
+D 1-Wire Digital Thermometer and Thermostat, SOIC-8
+K OneWire 1-Wire 1Wire Maxim Dallas
+F https://datasheets.maximintegrated.com/en/ds/DS1621.pdf
+$ENDCMP
+#
 $CMP DS1821C
 D Programmable Digital Thermostat and Thermometer, TO-92
 K OneWire 1Wire Maxim Dallas
diff --git a/library/sensors.lib b/library/sensors.lib
index 4454db88..bd25ceb5 100644
--- a/library/sensors.lib
+++ b/library/sensors.lib
@@ -347,6 +347,39 @@ X GND 4 -100 -300 100 U 40 40 1 1 W
 ENDDRAW
 ENDDEF
 #
+# DS1621S
+#
+DEF DS1621S U 0 40 Y Y 1 F N
+F0 "U" -300 350 50 H V C CNN
+F1 "DS1621S" 250 350 50 H V C CNN
+F2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" -1000 -350 50 H I C CNN
+F3 "" -150 250 50 H I C CNN
+$FPLIST
+ SOIC*3.9x4.9mm*Pitch1.27mm*
+$ENDFPLIST
+DRAW
+A -130 125 25 1 1799 0 1 10 N -105 125 -155 125
+C -130 -100 50 0 1 10 F
+S -400 300 400 -300 0 1 10 f
+S -105 -75 -155 0 0 1 10 F
+P 2 0 1 10 -155 25 -130 25 N
+P 2 0 1 10 -155 50 -130 50 N
+P 2 0 1 10 -155 75 -130 75 N
+P 2 0 1 10 -155 100 -130 100 N
+P 2 0 1 10 -155 125 -155 0 N
+P 2 0 1 10 -155 125 -130 125 N
+P 2 0 1 10 -105 125 -105 0 N
+X SDA 1 -500 200 100 R 50 50 1 1 B
+X SCL 2 -500 100 100 R 50 50 1 1 B
+X TOUT 3 500 0 100 L 50 50 1 1 O
+X GND 4 0 -400 100 U 50 50 1 1 W
+X A2 5 -500 -200 100 R 50 50 1 1 I
+X A1 6 -500 -100 100 R 50 50 1 1 I
+X A0 7 -500 0 100 R 50 50 1 1 I
+X VDD 8 0 400 100 D 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
 # DS1822Z
 #
 DEF DS1822Z U 0 40 Y Y 1 F N