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SMBJ24A-Q
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BOURNS TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMBJ24A-Q
BOURNS · TVS · SMB(DO-214AA)
SMBJ24A-Q from BOURNS, in a SMB(DO-214AA). 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 terminal, marked by the cathode band on the unidirectional SMBJ24A-Q (VRWM 24 V, VBR 26.7-29.5 V at 1.0 mA, max clamping 38.9 V at 15.5 A 10/1000 µs). |
| 2 | A | passive | Anode terminal, the end opposite the cathode band on the unidirectional SMBJ24A-Q (600 W peak pulse power at TP = 1 ms). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | SMB(DO-214AA) |
| 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 | 26.7 | 29.5 | V | @ IT = 1.0 mA, TA = 25 °C | 2 | |
| Working Peak Reverse Voltage | VRWM | 24 | V | TA = 25 °C | 2 | ||
| Maximum Reverse Leakage | IR | 1 | μA | @ VRWM | 2 | ||
| Maximum Clamping Voltage (10/1000 μs) | Vc | 38.9 | V | @ Ipp 15.5 A (10/1000 μs) | 2 | ||
| Maximum Peak Pulse Current (10/1000 μs) | Ipp | 15.5 | A | 10/1000 μs | 2 | ||
| Maximum Clamping Voltage (8/20 μs) | Vc | 50.6 | V | @ Ipp 77.5 A (8/20 μs) | 2 | ||
| Maximum Peak Pulse Current (8/20 μs) | Ipp | 77.5 | A | 8/20 μs | 2 | ||
| Minimum Peak Pulse Power Dissipation | PPK | 600 | Watts | TP = 1 ms | 1 | ||
| Peak Forward Surge Current | IFSM | 100 | Amps | 8.3 ms single half sine wave superimposed on rated load (JEDEC method) | 1 | ||
| Operating Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Tolerance (suffix A) | -5 | 5 | % | 5 % tolerance unidirectional device | 4 |
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 | 2. Mounted on 5.0 mm2 (0.03 mm thick) copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMBJ24A-Q - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
smbj24a-q-etched.step/smbj24a-q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj24a-q.step/smbj24a-q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (6 pp, sha256
f6912a8b5f937630, 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).
# SMBJ24A-Q
**BOURNS** · TVS · SMB(DO-214AA)
SMBJ24A-Q from BOURNS, in a SMB(DO-214AA). 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 terminal, marked by the cathode band on the unidirectional SMBJ24A-Q (VRWM 24 V, VBR 26.7-29.5 V at 1.0 mA, max clamping 38.9 V at 15.5 A 10/1000 µs). |
| 2 | A | passive | Anode terminal, the end opposite the cathode band on the unidirectional SMBJ24A-Q (600 W peak pulse power at TP = 1 ms). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | SMB(DO-214AA) |
| 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 | 26.7 | | 29.5 | V | @ IT = 1.0 mA, TA = 25 °C | 2 |
| Working Peak Reverse Voltage | VRWM | | 24 | | V | TA = 25 °C | 2 |
| Maximum Reverse Leakage | IR | | | 1 | μA | @ VRWM | 2 |
| Maximum Clamping Voltage (10/1000 μs) | Vc | | | 38.9 | V | @ Ipp 15.5 A (10/1000 μs) | 2 |
| Maximum Peak Pulse Current (10/1000 μs) | Ipp | | | 15.5 | A | 10/1000 μs | 2 |
| Maximum Clamping Voltage (8/20 μs) | Vc | | | 50.6 | V | @ Ipp 77.5 A (8/20 μs) | 2 |
| Maximum Peak Pulse Current (8/20 μs) | Ipp | | | 77.5 | A | 8/20 μs | 2 |
| Minimum Peak Pulse Power Dissipation | PPK | | | 600 | Watts | TP = 1 ms | 1 |
| Peak Forward Surge Current | IFSM | | | 100 | Amps | 8.3 ms single half sine wave superimposed on rated load (JEDEC method) | 1 |
| Operating Temperature Range | TJ | -55 | | 150 | °C | | 1 |
| Storage Temperature Range | TSTG | -55 | | 150 | °C | | 1 |
| Tolerance (suffix A) | | -5 | | 5 | % | 5 % tolerance unidirectional device | 4 |
## 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 | | 2. Mounted on 5.0 mm2 (0.03 mm thick) copper pads to each terminal. | 1 |
## CAD (KiCad official)
- Symbol: `SMBJ24A-Q`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smbj24a-q-etched.step` / `smbj24a-q-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj24a-q.step` / `smbj24a-q.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [BOURNS datasheet](docs/smbj24a-q-datasheet.pdf) (6 pp, sha256 `f6912a8b5f937630`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/smbj24a-q-datasheet.pdf)