
For Reference Only
Part Number | SG420 |
OEMstron Part # | SG420_DA |
Manufacturer | Ametherm |
Category | Power › Circuit Protection › Inrush Current Limiters (ICL) |
Description | ICL 2 OHM 25% 23A 31.75MM |
Lifecycle | Active |
RoHS | No RoHS Information |
EDA/CAD Models | SG420 PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Feb 25 - Mar 2 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
SG420 Specifications
Part Number | SG420 | |
Brand | Ametherm | |
Lifecycle | Active | |
RoHS | No RoHS Information | |
Product Line | Power | |
Category | Circuit Protection | |
Subcategory | Inrush Current Limiters (ICL) | |
Manufacturer | Ametherm | |
Series | SURGE-GARD™ | |
R @ 25°C | 2 Ohms | |
Tolerance | ±25% | |
Current - Steady State Max | 23A | |
R @ Current | 25 mOhms | |
Diameter | 1.250" (31.75mm) | |
Lead Spacing | 0.310" (7.87mm) | |
Approvals | CSA, UR |
SG420 Documents

Industry Leaders in Quality
Cooperation comes from trust,
And trust is based on quality.
Global Supply Chains - Reliable and Authorized Distributor Resources
Part Number | Description | Stock |
SG420 D# V72:2272_06461070 Littelfuse Inc |
Gas Discharge Tubes 420VDC 1kADC 2AAC 1pF Solder Pad SMD RoHS: Compliant
|
Americas - 5894 |
Part Number | Description | Stock |
SG420R00JR17 D# SG420R00JR17 Vishay Intertechnologies |
Res Wirewound 20 Ohm 5% 4W ±150ppm/°C Conformal AXL Thru-Hole T/R - Tape and Reel (Alt: SG420R00JR17) |
Americas - 0 |
Part Number | Description | Stock |
SG420 NEW SURPLUS CONNECTORS |
8 |
Part Number | Description | Stock |
SG420Q Littelfuse Inc |
1217 |
Part Number | Description | Stock |
SG420Q Littelfuse Inc |
SURGE ARRESTER GDT 420V QCK SMD |
Contact Us |
G420BN LAIRD PLC |
ANT TWO-WAY RADIO 420-450MHZ BN |
Contact Us |
SG420 Vishay Dale |
SG 4 20U 5% 150PPM TR1250 E3 - Tape and Reel |
Contact Us |
G420TN LAIRD PLC |
ANT TWO-WAY RADIO 420-450MHZ TN |
Contact Us |
Part Number | Description | Stock |
SG420R00JR17 D# 716-SG420R00JR17TR-ND Vishay Sfernice |
SFERNICE FIXED RESISTORS |
Temporarily Out of Stock |
ASG4203-C D# ASG4203-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Limited Supply - Call |
SG420Q D# F4135CT-ND Littelfuse Inc |
GDT 420V 1KA 2 POLE SMD |
1980 In Stock |
ASG4204-C D# ASG4204-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Temporarily Out of Stock |
ASG4201-C D# ASG4201-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Limited Supply - Call |
ASG4202-C D# ASG4202-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Temporarily Out of Stock |
ASG4200-C D# ASG4200-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Temporarily Out of Stock |
ASG4206-C D# ASG4206-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Temporarily Out of Stock |
G420TN D# G420TN-ND Laird Connectivity Inc |
RF ANT 435MHZ WHIP STR TNC MALE |
Temporarily Out of Stock |
SG420 D# F4134CT-ND Littelfuse Inc |
GDT 420V 1KA 2 POLE SMD |
5104 In Stock |
G420BN D# 994-1217-ND Laird Connectivity Inc |
RF ANT 435MHZ WHIP STR BNC MALE |
20 In Stock |
ASG4205-C D# ASG4205-C-ND Hms Industrial Networks AB |
IXXAT SG-GATEWAY W/ PROFIBUS |
Limited Supply - Call |
Part Number | Description | Stock |
SG420 Littelfuse Inc |
SQUARE SG 420V RoHS: Compliant
pbFree: Yes
|
0 Reel |
Part Number | Description | Stock |
G420TN |
OEM/CM QUOTES ONLY | NO BROKERS |
26 |
G420BN Laird Connectivity Inc |
OEM/CM QUOTES ONLY | NO BROKERS |
7 |
Part Number | Description | Stock |
SG420Q D# 576-SG420Q Littelfuse Inc |
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V GDT T/R 2 Term RoHS: Compliant
|
839 |
SG420 D# 576-SG420 Littelfuse Inc |
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term RoHS: Compliant
|
1932 |
G420BN D# 814-G420BN Laird Connectivity Inc |
Antennas DUCK,G,420-450MHz RoHS: Compliant
|
7 |
Part Number | Description | Stock |
CPAP-SG4200-NGTP-HA CHECK PNT |
Check Point 4200 Appliance Next Generation Threat Prevention for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 11 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
CPAP-SG4200-NGTP CHECK PNT |
Check Point 4200 Appliance Next Generation Threat Prevention - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 11 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
CPAP-SG4200-NGDP-HA CHECK PNT |
Check Point 4200 Appliance Next Generation Data Protection for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 8 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
CPAP-SG4200-NGFW CHECK PNT |
Check Point 4200 Appliance Next Generation Firewall Appliance - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 7 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
CPAP-SG4200-NGFW-HA CHECK PNT |
Check Point 4200 Appliance Next Generation Firewall Appliance for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 7 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
CPAP-SG4205 CHECK PNT |
Check Point 4200 Appliance - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 5 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
CPAP-SG4205-HA CHECK PNT |
Check Point 4200 Appliance 4205 for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 5 Security blades RoHS: Compliant
|
0 in Stock 0 on Order |
Part Number | Description | Stock |
CPAP-SG4200-NGFW D# XSDXTD000042242 CHECK PNT |
Check Point 4200 Appliance Next Generation Firewall Appliance - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 7 Security blades |
0 |
CPAP-SG4200-NGFW-HA D# XSDXTD000042221 CHECK PNT |
Check Point 4200 Appliance Next Generation Firewall Appliance for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 7 Security blades |
0 |
CPAP-SG4205 D# XSDXTD000023013 CHECK PNT |
Check Point 4200 Appliance - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 5 Security blades |
0 |
CPAP-SG4200-NGDP-HA D# XSDXTD000042241 CHECK PNT |
Check Point 4200 Appliance Next Generation Data Protection for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 8 Security blades |
0 |
CPAP-SG4205-HA D# XSDXTD000023014 CHECK PNT |
Check Point 4200 Appliance 4205 for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 5 Security blades |
0 |
CPAP-SG4200-NGTP-HA D# XSDXTD000042225 CHECK PNT |
Check Point 4200 Appliance Next Generation Threat Prevention for High Availability - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 11 Security blades |
0 |
CPAP-SG4200-NGTP D# XSDXTD000042216 CHECK PNT |
Check Point 4200 Appliance Next Generation Threat Prevention - Security appliance - 4 ports - GigE - 1U - rack-mountable - with 11 Security blades |
0 |
Part Number | Description | Stock |
SG420 D# 88T2463 Littelfuse Inc |
GAS DISCHARGE TUBE, 420V, SMD, Product Range:SG Series, DC Breakover Voltage:420V, GDT Case Style:SMD, Impulse Discharge Current:1kA, Impulse Sparkover Voltage:1kV RoHS Compliant: Yes RoHS: Compliant
Min Qty: 2000
Container: Cut Tape
|
0 |
8940XSG4200V06L9Y1Y35 D# 81C4150 Square D by Schneider Electric |
PUMP PANEL 480VAC 270AMP NEMA +OPTIONS RoHS: Not Compliant
Min Qty: 1
Container: Bulk
|
0 |
SG420Q D# 88T2464 Littelfuse Inc |
GAS DISCHARGE TUBE, 420V, SMD, Product Range:SG Series, DC Breakover Voltage:420V, GDT Case Style:SMD, Impulse Discharge Current:1kA, Impulse Sparkover Voltage:750V RoHS Compliant: Yes RoHS: Compliant
Min Qty: 2000
Container: Cut Tape
|
0 |
C284RSG4200JX0J D# 86AC9122 KEMET Corporation |
42.0PFV RoHS: Not Compliant
Min Qty: 162
Container: Bulk
|
0 |
8940SSG4200 D# 17C9528 Square D by Schneider Electric |
PUMP PANEL 480VAC 270AMP NEMA +OPTIONS RoHS: Not Compliant
Min Qty: 1
Container: Bulk
|
0 |
C284RSG4200KD0J D# 86AC9123 KEMET Corporation |
42.0PFV RoHS: Not Compliant
Min Qty: 162
Container: Bulk
|
0 |
C284RSG4200JG0J D# 86AC9121 KEMET Corporation |
2 U 470V RoHS: Not Compliant
Min Qty: 162
Container: Bulk
|
0 |
8940SSG4200V02S D# 20K6656 Square D by Schneider Electric |
PUMP PANEL 480VAC 270AMP NEMA +OPTIONS RoHS: Not Compliant
Min Qty: 1
Container: Bulk
|
0 |
8940XSG4200V06 D# 16B8139 Square D by Schneider Electric |
PUMP PANEL 480VAC 270AMP NEMA +OPTIONS RoHS: Not Compliant
Min Qty: 1
Container: Bulk
|
0 |
C274RSG4200KD0J D# 86AC7820 KEMET Corporation |
2 U 470V RoHS: Not Compliant
Min Qty: 162
Container: Bulk
|
0 |
C274RSG4200JG0J D# 86AC7819 KEMET Corporation |
2 U 470V RoHS: Not Compliant
Min Qty: 162
Container: Bulk
|
0 |
Part Number | Description | Stock |
G4208 D# NS-G4208 Hamamatsu Photonics |
OEM/CM ONLY |
1952 |
SG420Q D# NS-SG420Q Littelfuse Inc |
OEM/CM ONLY |
4226 |
G4201 D# NS-G4201 Switchcraft Conxall |
OEM/CM ONLY |
7949 |
G420BN D# NS-G420BN Laird Technologies IAS |
OEM/CM ONLY |
3341 |
G420TN D# NS-G420TN Laird Technologies IAS |
OEM/CM ONLY |
6481 |
G42-0160-179 D# NS-G42-0160-179 Foxconn |
OEM/CM ONLY |
4530 |
SG420 D# NS-SG420 Littelfuse Inc |
OEM/CM ONLY |
4192 |
Part Number | Description | Stock |
G420TN D# 000000000003702775 Laird Connectivity Inc |
Antennas 420-450MHz,2.5dB,TN |
0 |
SG420 D# 000000000000032750 Ametherm Inc |
Inrush Current Limiters 2OHM 23AMP |
269 |
G420BN D# 000000000003702774 Laird Connectivity Inc |
Antennas DUCK,G,420-450MHz |
0 |
Part Number | Description | Stock |
SG420Q Littelfuse Inc |
OEM/CM ONLY |
1233 |
C284RSG4200JX0J KEMET Corporation |
OEM/CM ONLY |
1312 |
SG420A RCA |
OEM/CM ONLY |
49 |
G420BN Laird Connectivity Inc |
OEM/CM ONLY |
116 |
SG420 Littelfuse Inc |
OEM/CM ONLY |
219 |
Part Number | Description | Stock |
SG420Q Littelfuse Inc |
shipping today |
1999696 |
SG420 Littelfuse Inc |
shipping today |
1999696 |
Part Number | Description | Stock |
SG420 D# 31273926 Littelfuse Inc |
Gas Discharge Tubes 420VDC 1kADC 2AAC 1pF Solder Pad SMD RoHS: Compliant
|
Americas - 5894 |
Part Number | Description | Stock |
SG420 D# 2125899 Littelfuse Inc |
GAS DISCHARGE TUBE, 420V, SMD RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
0 |
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Quick Inquiry
In Stock | 175 - More on Order |
---|---|
Quote Limit | No Limit |
Lead-Time | Can Ship Immediately |
Minimum | 1 |
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Pricing (USD)
Qty. | Unit Price | Ext. Price |
---|---|---|
1 | $ 0.0000 | $ 0.0000 |
100 | $ 0.0000 | $ 0.0000 |
500 | $ 0.0000 | $ 0.0000 |
1000 | $ 0.0000 | $ 0.0000 |
2500 | $ 0.0000 | $ 0.0000 |
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