component
SZ1SMA13CAT3G
Public Made by Adomby adom
Littelfuse TVS, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"title": "SZ1SMA13CAT3G",
"brief": "Littelfuse TVS, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"manufacturer": "Littelfuse",
"package": "SMA",
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"category": "Circuit Protection",
"subcategory": "TVS",
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"lcsc": "C1976145",
"digikey": "F11503TR-ND",
"mouser": "863-SZ1SMA13CAT3G"
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{
"number": "1",
"name": "Cathode",
"type": "passive",
"description": "TVS terminal 1 (labelled Cathode on the part-marking drawing); on the bi-directional SZ1SMA13CAT3G it is symmetric with pin 2: VRWM 13 V, VBR 14.40-15.92 V @ 1 mA, VC 21.5 V @ IPP 18.6 A, 400 W peak (10x1000 µs)."
},
{
"number": "2",
"name": "Anode",
"type": "passive",
"description": "TVS terminal 2 (labelled Anode on the part-marking drawing); on the bi-directional device it is interchangeable with pin 1, with the same VRWM 13 V, VC 21.5 V @ 18.6 A and IR 2.5 µA max ratings."
}
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"guards": "pin_guards 0.1: passed",
"guard_notes": [
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],
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"cost_usd": 0.047,
"at": "2026-10-22T00:41:20"
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"pages": 7,
"sha256": "2dcbd1b5c6bf6a05",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"seat": "z = 0",
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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"metadata": {
"specs": {
"Manufacturer": "Littelfuse",
"Package": "SMA",
"Category": "Circuit Protection",
"Pins": "2"
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"appearance": {
"contacts": {
"quote": "and the terminal finish material is tin(Sn) (IPC/",
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"plating": "tin"
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"characteristics": {
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"rows": [
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"name": "Working Peak Reverse Voltage",
"symbol": "VRWM",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 13,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
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{
"name": "Maximum Reverse Leakage Current",
"symbol": "IR",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 2.5,
"conditions": "@ VRWM",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Breakdown Voltage",
"symbol": "VBR",
"kind": "electrical",
"unit": "V",
"min": 14.4,
"typ": 15.16,
"max": 15.92,
"conditions": "@ IT = 1 mA, TA = 25°C",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Test Current",
"symbol": "IT",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Clamping Voltage",
"symbol": "VC",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 21.5,
"conditions": "@ IPP = 18.6 A",
"source_page": 4,
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{
"name": "Maximum Reverse Peak Pulse Current",
"symbol": "IPP",
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"unit": "A",
"min": null,
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{
"name": "Peak Power Dissipation",
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"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 400,
"conditions": "TL = 25°C, Pulse Width = 1 ms, 10 X 1000 µs non-repetitive",
"source_page": 1,
"source": "datasheet"
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{
"name": "DC Power Dissipation",
"symbol": "PD",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "TL = 75°C measured zero lead length, 1\" square copper pad FR-4",
"source_page": 1,
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{
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"min": null,
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"min": null,
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{
"name": "Derate Above 25°C",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mW/°C",
"min": null,
"typ": null,
"max": 4,
"conditions": "Above 25°C",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Operating and Storage Temperature Range",
"symbol": "TJ, Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction-to-Lead",
"symbol": "RƟJL",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 50,
"max": null,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction-to-Ambient",
"symbol": "RƟJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 250,
"max": null,
"conditions": "",
"source_page": 1,
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}
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