component
A733
Public Made by Adomby adom
Changjing Bipolar (BJT), TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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A733
Changjing · Bipolar (BJT) · TO-92
A733 from Changjing, in a TO-92. 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 | EMITTER | passive | Emitter terminal of the A733 PNP transistor; the device limits are VEBO -5 V and IC -100 mA continuous. |
| 2 | COLLECTOR | passive | Collector terminal of the A733 PNP transistor; the device limits are VCBO -60 V, VCEO -50 V and IC -100 mA continuous, with PC 250 mW. |
| 3 | BASE | passive | Base terminal of the A733 PNP transistor; the datasheet gives no separate base limit beyond the device maximum ratings (VEBO -5 V, IC -100 mA continuous). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-92 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-base breakdown voltage | V(BR)CBO | -60 | V | IC= -50uA, IE=0 | 2 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -50 | V | IC= -1mA, IB=0 | 2 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -5 | V | IE= -50uA, IC=0 | 2 | ||
| Collector cut-off current | ICBO | -0.1 | uA | VCB= -60V, IE=0 | 2 | ||
| Emitter cut-off current | IEBO | -0.1 | uA | VEB= -5 V, IC=0 | 2 | ||
| DC current gain | hFE | 90 | 200 | 600 | VCE= -6V, IC= -1mA | 2 | |
| Collector-emitter saturation voltage | VCE(sat) | -0.18 | -0.3 | V | IC= -100mA, IB=- 10mA | 2 | |
| Base-emitter voltage | VBE | -0.58 | -0.62 | -0.68 | V | VCE=-6V,IC=-1.0mA | 2 |
| Transition frequency | fT | 100 | MHz | VCE=-6V,IC=-10mA | 2 | ||
| Collector output capacitance | Cob | 6 | pF | VCB=-10V,IE=0,f=1MHZ | 2 | ||
| Noise figure | NF | 20 | dB | VCE=-6V,IC=-0.3mA, Rg=10kΩ,f=100HZ | 2 | ||
| Collector-base voltage | VCBO | -60 | V | 1 | |||
| Collector-emitter voltage | VCEO | -50 | V | 1 | |||
| Emitter-base voltage | VEBO | -5 | V | 1 | |||
| Collector current, continuous | IC | -100 | mA | 1 | |||
| Collector power dissipation | PC | 250 | mW | 1 | |||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Junction and storage temperature | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
A733 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files:
a733-etched.step/a733-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);a733.step/a733.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
0232615400c8ec4a, 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).
# A733
**Changjing** · Bipolar (BJT) · TO-92
A733 from Changjing, in a TO-92. 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 | EMITTER | passive | Emitter terminal of the A733 PNP transistor; the device limits are VEBO -5 V and IC -100 mA continuous. |
| 2 | COLLECTOR | passive | Collector terminal of the A733 PNP transistor; the device limits are VCBO -60 V, VCEO -50 V and IC -100 mA continuous, with PC 250 mW. |
| 3 | BASE | passive | Base terminal of the A733 PNP transistor; the datasheet gives no separate base limit beyond the device maximum ratings (VEBO -5 V, IC -100 mA continuous). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-92 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-base breakdown voltage | V(BR)CBO | -60 | | | V | IC= -50uA, IE=0 | 2 |
| Collector-emitter breakdown voltage | V(BR)CEO | -50 | | | V | IC= -1mA, IB=0 | 2 |
| Emitter-base breakdown voltage | V(BR)EBO | -5 | | | V | IE= -50uA, IC=0 | 2 |
| Collector cut-off current | ICBO | | | -0.1 | uA | VCB= -60V, IE=0 | 2 |
| Emitter cut-off current | IEBO | | | -0.1 | uA | VEB= -5 V, IC=0 | 2 |
| DC current gain | hFE | 90 | 200 | 600 | | VCE= -6V, IC= -1mA | 2 |
| Collector-emitter saturation voltage | VCE(sat) | | -0.18 | -0.3 | V | IC= -100mA, IB=- 10mA | 2 |
| Base-emitter voltage | VBE | -0.58 | -0.62 | -0.68 | V | VCE=-6V,IC=-1.0mA | 2 |
| Transition frequency | fT | 100 | | | MHz | VCE=-6V,IC=-10mA | 2 |
| Collector output capacitance | Cob | | | 6 | pF | VCB=-10V,IE=0,f=1MHZ | 2 |
| Noise figure | NF | | | 20 | dB | VCE=-6V,IC=-0.3mA, Rg=10kΩ,f=100HZ | 2 |
| Collector-base voltage | VCBO | | | -60 | V | | 1 |
| Collector-emitter voltage | VCEO | | | -50 | V | | 1 |
| Emitter-base voltage | VEBO | | | -5 | V | | 1 |
| Collector current, continuous | IC | | | -100 | mA | | 1 |
| Collector power dissipation | PC | | | 250 | mW | | 1 |
| Junction temperature | TJ | | | 150 | ℃ | | 1 |
| Junction and storage temperature | Tstg | -55 | | 150 | ℃ | | 1 |
## CAD (KiCad official)
- Symbol: `A733`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files: `a733-etched.step` / `a733-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `a733.step` / `a733.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588900447046815744) (4 pp, sha256 `0232615400c8ec4a`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/a733-datasheet.pdf)