diff --git a/library/transistors.lib b/library/transistors.lib
index b41b13e2..c3a06ca9 100644
--- a/library/transistors.lib
+++ b/library/transistors.lib
@@ -5038,4 +5038,480 @@ X E 3 100 -200 100 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
-# IR
+# IRLB8721PBF
+#
+DEF IRLB8721PBF Q 0 0 Y Y 1 F N
+F0 "Q" 250 75 50 H V L CNN
+F1 "IRLB8721PBF" 250 0 50 H V L CNN
+F2 "TO_SOT_Packages_THT:TO-220_Neutral123_Vertical" 250 -75 50 H I L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-220*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+C 100 -50 5 0 1 0 N
+C 100 50 5 0 1 0 N
+P 2 0 1 20 25 -40 25 -65 N
+P 2 0 1 20 25 15 25 -15 N
+P 2 0 1 20 25 65 25 40 N
+P 2 0 1 0 120 15 115 10 N
+P 2 0 1 0 120 15 140 15 N
+P 2 0 1 0 140 15 145 20 N
+P 3 0 1 10 0 60 0 -60 0 -60 N
+P 4 0 1 0 30 -50 100 -50 100 -100 100 -100 N
+P 4 0 1 0 30 50 100 50 100 100 100 100 N
+P 4 0 1 0 100 50 130 50 130 -50 100 -50 N
+P 4 0 1 0 130 15 120 -10 140 -10 130 15 F
+P 5 0 1 0 30 0 50 0 100 0 100 -50 100 -50 N
+P 6 0 1 0 35 0 75 15 75 -15 35 0 40 0 40 0 F
+X G 1 -200 -50 200 R 50 50 1 1 I
+X D 2 100 200 100 D 50 50 1 1 P
+X S 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# KTD1624
+#
+DEF KTD1624 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "KTD1624" 200 0 50 H V L CNN
+F2 "SOT-89" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-89*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X C 2 100 200 100 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MAT02
+#
+DEF MAT02 Q 0 0 Y Y 2 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MAT02" 200 0 50 H V L CNN
+F2 "TO-78" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X C 1 100 200 100 D 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X E 7 100 -200 100 U 50 50 1 1 P
+X E 5 100 -200 100 U 50 50 2 1 P
+X B 6 -200 0 200 R 50 50 2 1 I
+X C 7 100 200 100 D 50 50 2 1 P
+ENDDRAW
+ENDDEF
+#
+# MJE13003
+#
+DEF MJE13003 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MJE13003" 200 0 50 H V L CNN
+F2 "TO-200" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-200*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 12 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 F
+P 5 0 1 0 49 -70 69 -50 90 -90 49 -70 49 -70 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X C 2 100 200 100 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MJE13007G
+#
+DEF MJE13007G Q 0 0 Y Y 1 F N
+F0 "Q" 250 75 50 H V L CNN
+F1 "MJE13007G" 250 0 50 H V L CNN
+F2 "TO-220" 250 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+ALIAS MJE13005G MJE13009G
+$FPLIST
+ TO-220*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 12 N
+C 50 0 125 0 1 8 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 100 25 25 N
+P 2 0 1 12 125 105 145 130 N
+P 2 0 1 12 130 -100 150 -125 N
+P 2 0 1 12 165 -60 190 -75 N
+P 2 0 1 12 165 60 190 75 N
+P 2 0 1 12 175 0 210 0 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 3 0 1 0 90 -90 70 -70 70 -70 N
+P 3 0 1 0 100 -100 25 -25 50 -50 F
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X C 2 100 200 100 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MMBF170
+#
+DEF MMBF170 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MMBF170" 200 0 50 H V L CNN
+F2 "SOT-23" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-23*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+C 100 -50 5 0 1 0 N
+C 100 50 5 0 1 0 N
+P 2 0 1 20 25 -40 25 -65 N
+P 2 0 1 20 25 15 25 -15 N
+P 2 0 1 20 25 65 25 40 N
+P 2 0 1 0 120 15 115 10 N
+P 2 0 1 0 120 15 140 15 N
+P 2 0 1 0 140 15 145 20 N
+P 3 0 1 10 0 60 0 -60 0 -60 N
+P 4 0 1 0 30 -50 100 -50 100 -100 100 -100 N
+P 4 0 1 0 30 50 100 50 100 100 100 100 N
+P 4 0 1 0 100 50 130 50 130 -50 100 -50 N
+P 4 0 1 0 130 15 120 -10 140 -10 130 15 F
+P 5 0 1 0 30 0 50 0 100 0 100 -50 100 -50 N
+P 6 0 1 0 35 0 75 15 75 -15 35 0 40 0 40 0 F
+X G 1 -200 -50 200 R 50 50 1 1 I
+X S 2 100 -200 100 U 50 50 1 1 P
+X D 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MMBT3904
+#
+DEF MMBT3904 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MMBT3904" 200 0 50 H V L CNN
+F2 "SOT-23" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-23*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X E 2 100 -200 100 U 50 50 1 1 P
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MMBT3906
+#
+DEF MMBT3906 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MMBT3906" 200 0 50 H V L CNN
+F2 "SOT-23" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-23*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 F
+P 5 0 1 0 55 -75 75 -55 35 -35 55 -75 55 -75 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X E 2 100 -200 100 U 50 50 1 1 P
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MPSA42
+#
+DEF MPSA42 Q 0 40 Y N 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MPSA42" 200 0 50 H V L CNN
+F2 "TO-92" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-92*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X E 1 100 -200 100 U 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MPSA92
+#
+DEF MPSA92 Q 0 40 Y N 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MPSA92" 200 0 50 H V L CNN
+F2 "TO-92" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-92*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 F
+P 5 0 1 0 55 -75 75 -55 35 -35 55 -75 55 -75 F
+X E 1 100 -200 100 U 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# PN2222A
+#
+DEF PN2222A Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "PN2222A" 200 0 50 H V L CNN
+F2 "" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-92*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 3 0 1 0 95 -95 75 -75 75 -75 N
+P 5 0 1 0 55 -75 75 -55 95 -95 55 -75 55 -75 F
+X E 1 100 -200 100 U 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# PZT2222A
+#
+DEF PZT2222A Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "PZT2222A" 200 0 50 H V L CNN
+F2 "SOT-223" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-223*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 3 0 1 0 90 -90 70 -70 70 -70 N
+P 5 0 1 0 55 -75 75 -55 95 -95 55 -75 55 -75 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X C 2 100 200 100 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# PZTA42
+#
+DEF PZTA42 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "PZTA42" 200 0 50 H V L CNN
+F2 "SOT-223" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-223*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 3 0 1 0 90 -90 70 -70 70 -70 N
+P 5 0 1 0 55 -75 75 -55 95 -95 55 -75 55 -75 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X C 2 100 200 100 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# S8050
+#
+DEF S8050 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "S8050" 200 0 50 H V L CNN
+F2 "TO-92" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-92*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X E 1 100 -200 100 U 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# S8550
+#
+DEF S8550 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "S8550" 200 0 50 H V L CNN
+F2 "TO-92" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ TO-92*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 F
+P 5 0 1 0 55 -75 75 -55 35 -35 55 -75 55 -75 F
+X E 1 100 -200 100 U 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# TIP120
+#
+DEF TIP120 Q 0 0 Y Y 1 F N
+F0 "Q" 250 75 50 H V L CNN
+F1 "TIP120" 250 0 50 H V L CNN
+F2 "TO-220" 250 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+ALIAS TIP121 TIP122
+$FPLIST
+ TO-220*
+$ENDFPLIST
+DRAW
+C -30 0 5 0 1 0 N
+C 30 -80 5 0 1 0 N
+C 30 -10 5 0 1 0 N
+C 50 0 125 0 1 14 N
+C 100 -80 5 0 1 0 N
+C 100 -60 5 0 1 0 N
+C 100 40 5 0 1 0 N
+C 100 90 5 0 1 0 N
+P 2 0 1 0 -50 0 -35 0 N
+P 2 0 1 0 100 -80 100 -100 N
+P 2 0 1 0 100 -60 125 -60 N
+P 2 0 1 0 110 5 140 5 N
+P 2 0 1 0 125 -25 125 -60 N
+P 2 0 1 0 125 40 100 40 N
+P 2 0 1 0 125 40 125 5 N
+P 2 0 1 12 125 105 145 130 N
+P 2 0 1 12 130 -100 150 -125 N
+P 2 0 1 12 165 -60 190 -75 N
+P 2 0 1 12 165 60 190 75 N
+P 2 0 1 12 175 0 210 0 N
+P 3 0 1 0 -10 30 30 -10 50 -10 N
+P 3 0 1 0 -10 40 -30 40 -30 -80 N
+P 3 0 1 0 -10 50 30 90 100 90 N
+P 3 0 1 12 -10 80 -10 0 -10 0 N
+P 3 0 1 15 50 30 50 -50 50 -50 N
+P 4 0 1 0 25 -5 15 15 5 5 25 -5 N
+P 4 0 1 0 50 -20 90 -60 100 -60 100 -80 N
+P 4 0 1 0 50 0 90 40 100 40 100 90 N
+P 4 0 1 0 85 -55 75 -35 65 -45 85 -55 N
+P 4 0 1 0 125 5 110 -25 140 -25 125 5 F
+P 10 0 1 0 30 -80 15 -80 10 -90 5 -70 0 -90 -5 -70 -10 -90 -15 -70 -20 -80 -30 -80 N
+P 11 0 1 0 30 -10 30 -80 45 -80 50 -70 55 -90 60 -70 65 -90 70 -70 75 -90 80 -80 100 -80 N
+X B 1 -200 0 150 R 50 50 1 1 I
+X C 2 100 200 105 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# TIP125
+#
+DEF TIP125 Q 0 0 Y Y 1 F N
+F0 "Q" 250 75 50 H V L CNN
+F1 "TIP125" 250 0 50 H V L CNN
+F2 "TO-220" 250 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+ALIAS TIP126 TIP127
+$FPLIST
+ TO-220*
+$ENDFPLIST
+DRAW
+C -30 0 5 0 1 0 N
+C 30 -80 5 0 1 0 N
+C 30 -10 5 0 1 0 N
+C 50 0 125 0 1 14 N
+C 100 -80 5 0 1 0 N
+C 100 -60 5 0 1 0 N
+C 100 40 5 0 1 0 N
+C 100 90 5 0 1 0 N
+P 2 0 1 0 -50 0 -35 0 N
+P 2 0 1 0 100 -80 100 -100 N
+P 2 0 1 0 100 -60 125 -60 N
+P 2 0 1 0 110 -25 140 -25 N
+P 2 0 1 0 125 -60 125 -25 N
+P 2 0 1 0 125 5 125 40 N
+P 2 0 1 0 125 40 100 40 N
+P 2 0 1 12 125 105 145 130 N
+P 2 0 1 12 130 -100 150 -125 N
+P 2 0 1 12 165 -60 190 -75 N
+P 2 0 1 12 165 60 190 75 N
+P 2 0 1 12 175 0 210 0 N
+P 3 0 1 0 -10 30 30 -10 50 -10 N
+P 3 0 1 0 -10 40 -30 40 -30 -80 N
+P 3 0 1 0 -10 50 30 90 100 90 N
+P 3 0 1 12 -10 80 -10 0 -10 0 N
+P 3 0 1 15 50 30 50 -50 50 -50 N
+P 4 0 1 0 0 20 10 0 20 10 0 20 N
+P 4 0 1 0 50 -20 90 -60 100 -60 100 -80 N
+P 4 0 1 0 50 0 90 40 100 40 100 90 N
+P 4 0 1 0 60 -30 70 -50 80 -40 60 -30 N
+P 4 0 1 0 125 -25 110 5 140 5 125 -25 F
+P 10 0 1 0 30 -80 15 -80 10 -90 5 -70 0 -90 -5 -70 -10 -90 -15 -70 -20 -80 -30 -80 N
+P 11 0 1 0 30 -10 30 -80 45 -80 50 -70 55 -90 60 -70 65 -90 70 -70 75 -90 80 -80 100 -80 N
+X B 1 -200 0 150 R 50 50 1 1 I
+X C 2 100 200 105 D 50 50 1 1 P
+X E 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library