component
5.0SMDJ45CA
Public Made by Adomby adom
hongjiacheng ESD And Surge Protection (TVS/ESD), SMC. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdown5.0SMDJ45CA
hongjiacheng · ESD And Surge Protection (TVS/ESD) · SMC
5.0SMDJ45CA from hongjiacheng, in a SMC. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| Package | SMC |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | 45 | V | 3 | |||
| Breakdown Voltage | VBR | 50 | 55.3 | V | @IT = 1 mA | 3 | |
| Maximum Clamping Voltage | VC | 72.7 | V | @IPP = 68.8 A | 3 | ||
| Peak Pulse Current | IPP | 68.8 | A | 10/1000μs waveform | 3 | ||
| Reverse Leakage | IR | 5 | μA | @VRWM | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 5000 | W | 10/1000μs waveform, Ta=25℃ | 1 | ||
| Steady State Power Dissipation | PM(AV) | 6.5 | W | Infinite heat sink at Ta=75°C | 1 | ||
| Peak Forward Surge Current | IFSM | 300 | A | 8.3ms single half sine wave | 1 | ||
| Operating Junction and Storage Temperature | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction to Lead | RθJ-L | 15 | ℃/W | Typical | 1 | ||
| Thermal Resistance Junction to Ambient | RθJ-A | 75 | ℃/W | Typical | 1 | ||
| Breakdown Voltage Temperature Coefficient | ΔVBR | 0.1 | %/℃ | 0.1% × VBR@25℃ × ΔT, typical maximum | 1 | ||
| Breakdown Voltage Tolerance | -5 | 5 | % | Suffix A denotes 5% tolerance | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | •Matte tin lead-free Plated •Meets MSL level 1, per J-STD-020 | 1 |
CAD (KiCad official)
- Symbol:
5.0SMDJ45CA - Footprint:
Diode_SMD:D_SMC - 3D model: SMC (KiCad packages3D, STEP)
- 3D model files:
5-0smdj45ca-etched.step/5-0smdj45ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);5-0smdj45ca.step/5-0smdj45ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (5 pp, sha256
68034f5bd4d06618, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).