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SMBJ5342B-TP
Public Made by Adomby adom
MCC(Micro Commercial Components) Zener Diodes, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMBJ5342B-TP
MCC(Micro Commercial Components) · Zener Diodes · SMB(DO-214AA)
SMBJ5342B-TP from MCC(Micro Commercial Components), 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, identified by the cathode band/mark on the SMB (DO-214AA) body; SMBJ5342B has a nominal regulator voltage VZ of 6.8V at IZ = 175mA (±5%) and 5.0W steady-state power dissipation. |
| 2 | A | passive | Anode, the terminal opposite the cathode band; the datasheet gives a maximum forward voltage VF of 1.2V at IF = 1.0mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMB(DO-214AA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener tolerance on nominal VZ | VZ | -5 | 5 | % | Devices listed have ±5% tolerance on nominal VZ | 3 | |
| Regulator voltage (nominal) | VZ | 6.8 | V | IZ=175 mA, 25°C | 2 | ||
| Maximum dynamic impedance | ZZT | 1 | Ω | at test current IZ | 2 | ||
| Maximum reverse current | IR | 10 | µA | VR=5.2 V | 2 | ||
| Maximum regulator current | IZM | 700 | mA | 2 | |||
| Maximum dynamic knee impedance | ZZK | 200 | Ω | @1.0mA | 2 | ||
| Maximum surge current | IZSM | 11.5 | A | Nonrecurring sine wave 8.3 ms | 2 | ||
| Maximum voltage regulation | ΔVZ | 0.15 | V | Difference between VZ at 10% and 50% IZM | 2 | ||
| Maximum forward voltage | VF | 1.2 | V | IF=1.0mA | 1 | ||
| Test current | IZT | 175 | mA | 2 | |||
| Steady state power dissipation | P(AV) | 5 | W | Note 3: lead temperature 75°C at mounting plane, derate linearly above 75°C to zero at 150°C | 1 | ||
| Operating junction temperature range | TJ | -55 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 | ||
| Thermal resistance junction to lead | RθJL | 15 | °C/W | Junction to Lead | 1 | ||
| Thermal resistance junction to ambient | RθJA | 90 | °C/W | Junction to Ambient (Note 2) | 1 |
CAD (KiCad official)
- Symbol:
SMBJ5342B-TP - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
smbj5342b-tp-etched.step/smbj5342b-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj5342b-tp.step/smbj5342b-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(Micro Commercial Components) datasheet (5 pp, sha256
c847d4171ab3bdfb, 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).
# SMBJ5342B-TP
**MCC(Micro Commercial Components)** · Zener Diodes · SMB(DO-214AA)
SMBJ5342B-TP from MCC(Micro Commercial Components), 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, identified by the cathode band/mark on the SMB (DO-214AA) body; SMBJ5342B has a nominal regulator voltage VZ of 6.8V at IZ = 175mA (±5%) and 5.0W steady-state power dissipation. |
| 2 | A | passive | Anode, the terminal opposite the cathode band; the datasheet gives a maximum forward voltage VF of 1.2V at IF = 1.0mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMB(DO-214AA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener tolerance on nominal VZ | VZ | -5 | | 5 | % | Devices listed have ±5% tolerance on nominal VZ | 3 |
| Regulator voltage (nominal) | VZ | | 6.8 | | V | IZ=175 mA, 25°C | 2 |
| Maximum dynamic impedance | ZZT | | | 1 | Ω | at test current IZ | 2 |
| Maximum reverse current | IR | | | 10 | µA | VR=5.2 V | 2 |
| Maximum regulator current | IZM | | | 700 | mA | | 2 |
| Maximum dynamic knee impedance | ZZK | | | 200 | Ω | @1.0mA | 2 |
| Maximum surge current | IZSM | | | 11.5 | A | Nonrecurring sine wave 8.3 ms | 2 |
| Maximum voltage regulation | ΔVZ | | | 0.15 | V | Difference between VZ at 10% and 50% IZM | 2 |
| Maximum forward voltage | VF | | | 1.2 | V | IF=1.0mA | 1 |
| Test current | IZT | | 175 | | mA | | 2 |
| Steady state power dissipation | P(AV) | | | 5 | W | Note 3: lead temperature 75°C at mounting plane, derate linearly above 75°C to zero at 150°C | 1 |
| Operating junction temperature range | TJ | -55 | | 150 | °C | | 1 |
| Storage temperature range | TSTG | -55 | | 150 | °C | | 1 |
| Thermal resistance junction to lead | RθJL | | 15 | | °C/W | Junction to Lead | 1 |
| Thermal resistance junction to ambient | RθJA | | 90 | | °C/W | Junction to Ambient (Note 2) | 1 |
## CAD (KiCad official)
- Symbol: `SMBJ5342B-TP`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smbj5342b-tp-etched.step` / `smbj5342b-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj5342b-tp.step` / `smbj5342b-tp.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/smbj5342b-tp-datasheet.pdf) (5 pp, sha256 `c847d4171ab3bdfb`, 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/smbj5342b-tp-datasheet.pdf)