Drop capacitor voltage ratings where possible.

Audio circuit is 1V RMS, so 6.3V is fine.
Use 10V for 3.3V circuits.
Use 16V for 5.0V circuits.

Author: thejpster

Kicad/audio.sch

@@ -217,43 +217,43 @@ F 6 "CPL" H 4000 4350 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 4000 4350 50  0001 C CNN "MPN"
 F 8 "C15850" H 4000 4350 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 4000 4350 50  0001 C CNN "Tolerance"
-F 10 "16V" H 4000 4350 50  0001 C CNN "Voltage"
+F 10 "10V" H 4000 4350 50  0001 C CNN "Voltage"
 F 11 "~" H 4000 4350 50  0001 C CNN "Mouser"
 	1    4000 4350
 	1    0    0    -1  
 $EndComp
 $Comp
 L Device:C C215
 U 1 1 5FE524BE
-P 3600 4350
-F 0 "C215" H 3700 4400 50  0000 L CNN
-F 1 "100nF" H 3700 4300 50  0000 L CNN
-F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 3638 4200 50  0001 C CNN
-F 3 "~" H 3600 4350 50  0001 C CNN
-F 4 "0" H 3600 4350 50  0001 C CNN "DNP"
-F 5 "~" H 3600 4350 50  0001 C CNN "Digikey"
-F 6 "CPL" H 3600 4350 50  0001 C CNN "Manufacturer"
-F 7 "CPL-CAP-X7R-0805-100NF-50V" H 3600 4350 50  0001 C CNN "MPN"
-F 8 "~" H 3600 4350 50  0001 C CNN "Mouser"
-F 9 "C49678" H 3600 4350 50  0001 C CNN "LCSC Part#"
-F 10 "X5R" H 3600 4350 50  0001 C CNN "Tolerance"
-F 11 "50V" H 3600 4350 50  0001 C CNN "Voltage"
-	1    3600 4350
+P 3550 4350
+F 0 "C215" H 3650 4400 50  0000 L CNN
+F 1 "100nF" H 3650 4300 50  0000 L CNN
+F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 3588 4200 50  0001 C CNN
+F 3 "~" H 3550 4350 50  0001 C CNN
+F 4 "0" H 3550 4350 50  0001 C CNN "DNP"
+F 5 "~" H 3550 4350 50  0001 C CNN "Digikey"
+F 6 "CPL" H 3550 4350 50  0001 C CNN "Manufacturer"
+F 7 "CPL-CAP-X7R-0805-100NF-50V" H 3550 4350 50  0001 C CNN "MPN"
+F 8 "~" H 3550 4350 50  0001 C CNN "Mouser"
+F 9 "C49678" H 3550 4350 50  0001 C CNN "LCSC Part#"
+F 10 "X5R" H 3550 4350 50  0001 C CNN "Tolerance"
+F 11 "10V" H 3550 4350 50  0001 C CNN "Voltage"
+	1    3550 4350
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	4000 4700 4000 4600
 Wire Wire Line
-	4000 4600 3600 4600
+	4000 4600 3550 4600
 Wire Wire Line
-	3600 4600 3600 4500
+	3550 4600 3550 4500
 Wire Wire Line
-	3600 4100 3500 4100
+	3550 4100 3500 4100
 Wire Wire Line
-	3600 4100 4000 4100
+	3550 4100 4000 4100
 Wire Wire Line
 	4000 4500 4000 4600
-Connection ~ 3600 4100
+Connection ~ 3550 4100
 Connection ~ 4000 4600
 $Comp
 L power:GND #PWR0214
@@ -304,7 +304,7 @@ F 5 "1276-1047-1-ND" H 1000 4550 50  0001 C CNN "Digikey"
 F 6 "CL21C220JBANNNC" H 1000 4550 50  0001 C CNN "MPN"
 F 7 "Samsung" H 1000 4550 50  0001 C CNN "Manufacturer"
 F 8 "C1804" H 1000 4550 50  0001 C CNN "LCSC Part#"
-F 9 "50V" H 1000 4550 50  0001 C CNN "Voltage"
+F 9 "16V" H 1000 4550 50  0001 C CNN "Voltage"
 F 10 "C0G" H 1000 4550 50  0001 C CNN "Tolerance"
 F 11 "~" H 1000 4550 50  0001 C CNN "Mouser"
 	1    1000 4550
@@ -323,7 +323,7 @@ F 5 "1276-1047-1-ND" H 1500 4550 50  0001 C CNN "Digikey"
 F 6 "CL21C220JBANNNC" H 1500 4550 50  0001 C CNN "MPN"
 F 7 "Samsung" H 1500 4550 50  0001 C CNN "Manufacturer"
 F 8 "C1804" H 1500 4550 50  0001 C CNN "LCSC Part#"
-F 9 "50V" H 1500 4550 50  0001 C CNN "Voltage"
+F 9 "16V" H 1500 4550 50  0001 C CNN "Voltage"
 F 10 "C0G" H 1500 4550 50  0001 C CNN "Tolerance"
 F 11 "~" H 1500 4550 50  0001 C CNN "Mouser"
 	1    1500 4550
@@ -375,7 +375,7 @@ F 6 "CPL" H 1600 1150 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 1600 1150 50  0001 C CNN "MPN"
 F 8 "C15850" H 1600 1150 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 1600 1150 50  0001 C CNN "Tolerance"
-F 10 "16V" H 1600 1150 50  0001 C CNN "Voltage"
+F 10 "10V" H 1600 1150 50  0001 C CNN "Voltage"
 F 11 "~" H 1600 1150 50  0001 C CNN "Mouser"
 	1    1600 1150
 	-1   0    0    -1  
@@ -395,7 +395,7 @@ F 7 "CPL-CAP-X7R-0805-100NF-50V" H 2050 1150 50  0001 C CNN "MPN"
 F 8 "~" H 2050 1150 50  0001 C CNN "Mouser"
 F 9 "C49678" H 2050 1150 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 2050 1150 50  0001 C CNN "Tolerance"
-F 11 "50V" H 2050 1150 50  0001 C CNN "Voltage"
+F 11 "10V" H 2050 1150 50  0001 C CNN "Voltage"
 	1    2050 1150
 	-1   0    0    -1  
 $EndComp
@@ -417,7 +417,7 @@ F 6 "CPL" H 3100 1050 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 3100 1050 50  0001 C CNN "MPN"
 F 8 "C15850" H 3100 1050 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 3100 1050 50  0001 C CNN "Tolerance"
-F 10 "16V" H 3100 1050 50  0001 C CNN "Voltage"
+F 10 "10V" H 3100 1050 50  0001 C CNN "Voltage"
 F 11 "~" H 3100 1050 50  0001 C CNN "Mouser"
 	1    3100 1050
 	1    0    0    -1  
@@ -437,7 +437,7 @@ F 7 "CPL-CAP-X7R-0805-100NF-50V" H 2650 1050 50  0001 C CNN "MPN"
 F 8 "~" H 2650 1050 50  0001 C CNN "Mouser"
 F 9 "C49678" H 2650 1050 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 2650 1050 50  0001 C CNN "Tolerance"
-F 11 "50V" H 2650 1050 50  0001 C CNN "Voltage"
+F 11 "10V" H 2650 1050 50  0001 C CNN "Voltage"
 	1    2650 1050
 	1    0    0    -1  
 $EndComp
@@ -470,7 +470,7 @@ F 7 "CPL-CAP-X7R-0805-100NF-50V" H 1700 2000 50  0001 C CNN "MPN"
 F 8 "~" H 1700 2000 50  0001 C CNN "Mouser"
 F 9 "C49678" H 1700 2000 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 1700 2000 50  0001 C CNN "Tolerance"
-F 11 "50V" H 1700 2000 50  0001 C CNN "Voltage"
+F 11 "10V" H 1700 2000 50  0001 C CNN "Voltage"
 	1    1700 2000
 	-1   0    0    -1  
 $EndComp
@@ -502,7 +502,7 @@ F 7 "CPL-CAP-X7R-0805-100NF-50V" H 2150 2000 50  0001 C CNN "MPN"
 F 8 "~" H 2150 2000 50  0001 C CNN "Mouser"
 F 9 "C49678" H 2150 2000 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 2150 2000 50  0001 C CNN "Tolerance"
-F 11 "50V" H 2150 2000 50  0001 C CNN "Voltage"
+F 11 "10V" H 2150 2000 50  0001 C CNN "Voltage"
 	1    2150 2000
 	-1   0    0    -1  
 $EndComp
@@ -682,7 +682,7 @@ F 7 "CL21B474KBFNNNE" H 4300 1400 50  0001 C CNN "MPN"
 F 8 "810-FG18X7R1H474KRT6" H 4300 1400 50  0001 C CNN "Mouser"
 F 9 "C13967" H 4300 1400 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 4300 1400 50  0001 C CNN "Tolerance"
-F 11 "50V" H 4300 1400 50  0001 C CNN "Voltage"
+F 11 "6.3V" H 4300 1400 50  0001 C CNN "Voltage"
 	1    4300 1400
 	0    -1   -1   0   
 $EndComp
@@ -790,7 +790,7 @@ F 7 "CL21B474KBFNNNE" H 4300 1250 50  0001 C CNN "MPN"
 F 8 "810-FG18X7R1H474KRT6" H 4300 1250 50  0001 C CNN "Mouser"
 F 9 "C13967" H 4300 1250 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 4300 1250 50  0001 C CNN "Tolerance"
-F 11 "50V" H 4300 1250 50  0001 C CNN "Voltage"
+F 11 "6.3V" H 4300 1250 50  0001 C CNN "Voltage"
 	1    4300 1250
 	0    -1   1    0   
 $EndComp
@@ -905,7 +905,7 @@ F 7 "CPL-CAP-ALU-RAD-220UF-50V" H 4600 2450 50  0001 C CNN "MPN"
 F 8 "~" H 4600 2450 50  0001 C CNN "Mouser"
 F 9 "~" H 4600 2450 50  0001 C CNN "LCSC Part#"
 F 10 "20%" H 4600 2450 50  0001 C CNN "Tolerance"
-F 11 "50V" H 4600 2450 50  0001 C CNN "Voltage"
+F 11 "6.3V" H 4600 2450 50  0001 C CNN "Voltage"
 	1    4600 2450
 	0    -1   -1   0   
 $EndComp
@@ -924,7 +924,7 @@ F 7 "CPL-CAP-ALU-RAD-220UF-50V" H 4600 2600 50  0001 C CNN "MPN"
 F 8 "~" H 4600 2600 50  0001 C CNN "Mouser"
 F 9 "~" H 4600 2600 50  0001 C CNN "LCSC Part#"
 F 10 "20%" H 4600 2600 50  0001 C CNN "Tolerance"
-F 11 "50V" H 4600 2600 50  0001 C CNN "Voltage"
+F 11 "6.3V" H 4600 2600 50  0001 C CNN "Voltage"
 	1    4600 2600
 	0    -1   -1   0   
 $EndComp
@@ -1096,7 +1096,7 @@ F 6 "CPL" H 2000 7200 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 2000 7200 50  0001 C CNN "MPN"
 F 8 "C15850" H 2000 7200 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 2000 7200 50  0001 C CNN "Tolerance"
-F 10 "16V" H 2000 7200 50  0001 C CNN "Voltage"
+F 10 "10V" H 2000 7200 50  0001 C CNN "Voltage"
 F 11 "~" H 2000 7200 50  0001 C CNN "Mouser"
 	1    2000 7200
 	1    0    0    -1  
@@ -1130,7 +1130,7 @@ F 6 "CPL" H 1400 6300 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 1400 6300 50  0001 C CNN "MPN"
 F 8 "C15850" H 1400 6300 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 1400 6300 50  0001 C CNN "Tolerance"
-F 10 "16V" H 1400 6300 50  0001 C CNN "Voltage"
+F 10 "10V" H 1400 6300 50  0001 C CNN "Voltage"
 F 11 "~" H 1400 6300 50  0001 C CNN "Mouser"
 	1    1400 6300
 	1    0    0    -1  
@@ -1149,7 +1149,7 @@ F 6 "CPL" H 1400 7200 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 1400 7200 50  0001 C CNN "MPN"
 F 8 "C15850" H 1400 7200 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 1400 7200 50  0001 C CNN "Tolerance"
-F 10 "16V" H 1400 7200 50  0001 C CNN "Voltage"
+F 10 "10V" H 1400 7200 50  0001 C CNN "Voltage"
 F 11 "~" H 1400 7200 50  0001 C CNN "Mouser"
 	1    1400 7200
 	1    0    0    -1  
@@ -1230,7 +1230,7 @@ F 6 "CPL" H 2000 6300 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 2000 6300 50  0001 C CNN "MPN"
 F 8 "C15850" H 2000 6300 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 2000 6300 50  0001 C CNN "Tolerance"
-F 10 "16V" H 2000 6300 50  0001 C CNN "Voltage"
+F 10 "10V" H 2000 6300 50  0001 C CNN "Voltage"
 F 11 "~" H 2000 6300 50  0001 C CNN "Mouser"
 	1    2000 6300
 	1    0    0    -1  
@@ -1488,7 +1488,7 @@ F 6 "CPL" H 5550 4850 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X7R-0805-1UF-25V" H 5550 4850 50  0001 C CNN "MPN"
 F 8 "C28323" H 5550 4850 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 5550 4850 50  0001 C CNN "Tolerance"
-F 10 "25V" H 5550 4850 50  0001 C CNN "Voltage"
+F 10 "6.3V" H 5550 4850 50  0001 C CNN "Voltage"
 F 11 "~" H 5550 4850 50  0001 C CNN "Mouser"
 	1    5550 4850
 	0    -1   -1   0   
@@ -1507,7 +1507,7 @@ F 6 "CL21C470JBANNNC" H 6250 5100 50  0001 C CNN "MPN"
 F 7 "Samsung" H 6250 5100 50  0001 C CNN "Manufacturer"
 F 8 "C14857" H 6250 5100 50  0001 C CNN "LCSC Part#"
 F 9 "C0G" H 6250 5100 50  0001 C CNN "Tolerance"
-F 10 "50V" H 6250 5100 50  0001 C CNN "Voltage"
+F 10 "6.3V" H 6250 5100 50  0001 C CNN "Voltage"
 F 11 "~" H 6250 5100 50  0001 C CNN "Mouser"
 	1    6250 5100
 	-1   0    0    1   
@@ -1625,7 +1625,7 @@ Wire Wire Line
 	6750 4850 6750 5000
 Connection ~ 6750 4850
 Wire Wire Line
-	3600 4100 3600 4200
+	3550 4100 3550 4200
 Wire Wire Line
 	4000 4100 4000 4200
 Wire Wire Line
@@ -1803,7 +1803,7 @@ F 7 "CL21B474KBFNNNE" H 4900 3750 50  0001 C CNN "MPN"
 F 8 "810-FG18X7R1H474KRT6" H 4900 3750 50  0001 C CNN "Mouser"
 F 9 "C13967" H 4900 3750 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 4900 3750 50  0001 C CNN "Tolerance"
-F 11 "50V" H 4900 3750 50  0001 C CNN "Voltage"
+F 11 "6.3V" H 4900 3750 50  0001 C CNN "Voltage"
 	1    4900 3750
 	0    -1   -1   0   
 $EndComp
@@ -1824,7 +1824,7 @@ F 7 "CL21B474KBFNNNE" H 4900 3600 50  0001 C CNN "MPN"
 F 8 "810-FG18X7R1H474KRT6" H 4900 3600 50  0001 C CNN "Mouser"
 F 9 "C13967" H 4900 3600 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 4900 3600 50  0001 C CNN "Tolerance"
-F 11 "50V" H 4900 3600 50  0001 C CNN "Voltage"
+F 11 "6.3V" H 4900 3600 50  0001 C CNN "Voltage"
 	1    4900 3600
 	0    -1   1    0   
 $EndComp
@@ -2446,7 +2446,7 @@ F 6 "CPL" H 1250 2000 50  0001 C CNN "Manufacturer"
 F 7 "CPL-CAP-X5R-0805-10UF-16V" H 1250 2000 50  0001 C CNN "MPN"
 F 8 "C15850" H 1250 2000 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 1250 2000 50  0001 C CNN "Tolerance"
-F 10 "16V" H 1250 2000 50  0001 C CNN "Voltage"
+F 10 "10V" H 1250 2000 50  0001 C CNN "Voltage"
 F 11 "~" H 1250 2000 50  0001 C CNN "Mouser"
 	1    1250 2000
 	-1   0    0    -1  

Kicad/io_exp.sch

@@ -325,7 +325,7 @@ F 7 "CPL" H 7900 2500 50  0001 C CNN "Manufacturer"
 F 8 "~" H 7900 2500 50  0001 C CNN "Mouser"
 F 9 "C49678" H 7900 2500 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 7900 2500 50  0001 C CNN "Tolerance"
-F 11 "50V" H 7900 2500 50  0001 C CNN "Voltage"
+F 11 "10V" H 7900 2500 50  0001 C CNN "Voltage"
 	1    7900 2500
 	1    0    0    -1  
 $EndComp
@@ -350,7 +350,7 @@ F 7 "CPL" H 8375 2500 50  0001 C CNN "Manufacturer"
 F 8 "~" H 8375 2500 50  0001 C CNN "Mouser"
 F 9 "C49678" H 8375 2500 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 8375 2500 50  0001 C CNN "Tolerance"
-F 11 "50V" H 8375 2500 50  0001 C CNN "Voltage"
+F 11 "10V" H 8375 2500 50  0001 C CNN "Voltage"
 	1    8375 2500
 	1    0    0    -1  
 $EndComp

Kicad/rtc.sch

@@ -87,7 +87,7 @@ F 7 "CPL-CAP-X7R-0805-100NF-50V" H 7050 3350 50  0001 C CNN "MPN"
 F 8 "~" H 7050 3350 50  0001 C CNN "Mouser"
 F 9 "C49678" H 7050 3350 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 7050 3350 50  0001 C CNN "Tolerance"
-F 11 "50V" H 7050 3350 50  0001 C CNN "Voltage"
+F 11 "10V" H 7050 3350 50  0001 C CNN "Voltage"
 	1    7050 3350
 	1    0    0    -1  
 $EndComp
@@ -222,7 +222,7 @@ F 6 "CC0805DRNPO9BN6R0" H 5350 3500 50  0001 C CNN "MPN"
 F 7 "311-1095-1-ND" H 5350 3500 50  0001 C CNN "Digikey"
 F 8 "603-CC805DRNPO9BN6R0" H 5350 3500 50  0001 C CNN "Mouser"
 F 9 "C67560" H 5350 3500 50  0001 C CNN "LCSC Part#"
-F 10 "50V" H 5350 3500 50  0001 C CNN "Voltage"
+F 10 "10V" H 5350 3500 50  0001 C CNN "Voltage"
 F 11 "C0G" H 5350 3500 50  0001 C CNN "Tolerance"
 	1    5350 3500
 	1    0    0    -1  
@@ -241,7 +241,7 @@ F 6 "CC0805DRNPO9BN6R0" H 4700 3500 50  0001 C CNN "MPN"
 F 7 "311-1095-1-ND" H 4700 3500 50  0001 C CNN "Digikey"
 F 8 "603-CC805DRNPO9BN6R0" H 4700 3500 50  0001 C CNN "Mouser"
 F 9 "C67560" H 4700 3500 50  0001 C CNN "LCSC Part#"
-F 10 "50V" H 4700 3500 50  0001 C CNN "Voltage"
+F 10 "10V" H 4700 3500 50  0001 C CNN "Voltage"
 F 11 "C0G" H 4700 3500 50  0001 C CNN "Tolerance"
 	1    4700 3500
 	1    0    0    -1  

Kicad/sdcard.sch

@@ -168,7 +168,7 @@ F 6 "CPL-CAP-X5R-0805-10UF-16V" H 8250 3750 50  0001 C CNN "MPN"
 F 7 "CPL" H 8250 3750 50  0001 C CNN "Manufacturer"
 F 8 "C15850" H 8250 3750 50  0001 C CNN "LCSC Part#"
 F 9 "X5R" H 8250 3750 50  0001 C CNN "Tolerance"
-F 10 "16V" H 8250 3750 50  0001 C CNN "Voltage"
+F 10 "10V" H 8250 3750 50  0001 C CNN "Voltage"
 F 11 "~" H 8250 3750 50  0001 C CNN "Mouser"
 	1    8250 3750
 	1    0    0    -1  
@@ -188,7 +188,7 @@ F 7 "CPL" H 8800 3750 50  0001 C CNN "Manufacturer"
 F 8 "~" H 8800 3750 50  0001 C CNN "Mouser"
 F 9 "C49678" H 8800 3750 50  0001 C CNN "LCSC Part#"
 F 10 "X5R" H 8800 3750 50  0001 C CNN "Tolerance"
-F 11 "50V" H 8800 3750 50  0001 C CNN "Voltage"
+F 11 "10V" H 8800 3750 50  0001 C CNN "Voltage"
 	1    8800 3750
 	1    0    0    -1  
 $EndComp