component
5.0SMDJ26A
Public Made by Adomby adom
WPMtek(Wei Pan Microelectronics) TVS, SMC(DO-214AB). Pinout cross-checked by two models against the datasheet, 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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README
markdown5.0SMDJ26A
WPMtek(Wei Pan Microelectronics) · TVS · SMC(DO-214AB)
5.0SMDJ26A from WPMtek(Wei Pan Microelectronics), in a SMC(DO-214AB). 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, marked by the color band on the unidirectional 5.0SMDJ26A, connects to the protected line; stand-off voltage VRWM is 26 V, breakdown VBR is 28.9-31.9 V at 1 mA, and clamping VC is 42.1 V max at IPP 119 A (10/1000µs). |
| 2 | A | passive | Anode, the end opposite the cathode band, connects to ground or the return side; forward voltage is 5.0 V max at 100 A and peak forward surge current IFSM is 300 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WPMtek(Wei Pan Microelectronics) |
| Package | SMC(DO-214AB) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | VBR | 28.9 | 31.9 | V | @IT = 1 mA, TA=25°C | 2 | |
| Test current | IT | 1 | mA | TA=25°C | 2 | ||
| Reverse stand-off voltage | VRWM | 26 | V | TA=25°C | 2 | ||
| Maximum reverse leakage | IR | 2 | μA | @VR = 26 V, TA=25°C | 2 | ||
| Maximum clamping voltage | VC | 42.1 | V | @IPP, 10/1000μs surge, TA=25°C | 2 | ||
| Maximum peak pulse current | IPP | 119 | A | 10/1000μs waveform | 2 | ||
| Operating junction and storage temperature range | TJ / TSTG | -55 | 150 | ℃ | TA=25℃, RH=45%-75% | 1 | |
| Steady state power dissipation | PM(AV) | 6.5 | W | TL=75℃ | 1 | ||
| Peak pulse power dissipation | PPP | 5000 | W | 10/1000μs waveform | 1 | ||
| Maximum instantaneous forward voltage | VF | 5 | V | at 100A, unidirectional only | 1 | ||
| Peak forward surge current | IFSM | 300 | A | 8.3ms single half sine wave, unidirectional only | 1 | ||
| Thermal resistance junction to lead | RθJL | 15 | ℃/W | Typical | 1 | ||
| Thermal resistance junction to ambient | RθJA | 75 | ℃/W | Typical | 1 |
CAD (KiCad official)
- Symbol:
5.0SMDJ26A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
5-0smdj26a-etched.step/5-0smdj26a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);5-0smdj26a.step/5-0smdj26a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WPMtek(Wei Pan Microelectronics) datasheet (7 pp, sha256
005557006ab53c81, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).