component
SMAJ43CA-TP
Public Made by Adomby adom
MCC(美微科) , SMA(DO-214AC). 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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Contents
README
markdownSMAJ43CA-TP
MCC(美微科) · IC · SMA(DO-214AC)
SMAJ43CA-TP from MCC(美微科), in a SMA(DO-214AC). 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 | 1 | passive | One of two interchangeable terminals of the bidirectional TVS SMAJ43CA, which clamps in either polarity with a working peak reverse voltage VRWM of 43 V and breakdown VBR of 47.8 to 52.8 V at IT = 1 mA. |
| 2 | 2 | passive | The second of two interchangeable terminals of the bidirectional TVS SMAJ43CA, rated for 400 W peak pulse power on a 10/1000 µs waveform, with a maximum clamping voltage of 69.4 V at IPP = 5.7 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(美微科) |
| Package | SMA(DO-214AC) |
| Category | |
| 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 (bi-directional, CA) | VBR | 47.8 | 52.8 | V | @IT = 1 mA | 3 | |
| Maximum Reverse Leakage | IR | 1 | μA | @VRWM = 43.0 V | 3 | ||
| Maximum Clamping Voltage | VC | 69.4 | V | @IPP = 5.7 A | 3 | ||
| Maximum Reverse Surge Current | IPP | 5.7 | A | 3 | |||
| Working Peak Reverse Voltage | VRWM | 43 | V | 3 | |||
| Peak Pulse Power Dissipation | PPPM | 400 | W | 10/1000μs waveform (Note 3) | 1 | ||
| Power Dissipation on Infinite Heatsink | PD | 1.5 | W | TL = 75°C | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 175 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 175 | ℃ | 1 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 30 | ℃/W | 2 | |||
| Typical Thermal Resistance Junction to Ambient | RθJA | 120 | ℃/W | 2 | |||
| Typical Thermal Resistance Junction to Case | RθJC | 20 | ℃/W | 2 |
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 | copper | 6. Mounted on 0.2 x 0.2" (5.0 x 5.0 mm) copper pads to each terminal. | 2 |
CAD (KiCad official)
- Symbol:
SMAJ43CA-TP - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj43ca-tp-etched.step/smaj43ca-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj43ca-tp.step/smaj43ca-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(美微科) datasheet (5 pp, sha256
13bcafd7f8fcba0f, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).