component
ZTX451
Public Made by Adomby adom
Diodes Incorporated Bipolar (BJT), TO-92. 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
markdownZTX451
Diodes Incorporated · Bipolar (BJT) · TO-92
ZTX451 from Diodes Incorporated, 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 | C | passive | Collector; VCEO 60 V and VCBO 80 V for ZTX451, continuous collector current 1 A, peak pulse current 2 A. |
| 2 | B | passive | Base; the drawing shows it as the middle lead, with emitter-base voltage limited to 5 V. |
| 3 | E | passive | Emitter; the drawing shows it as the third lead, with emitter-base voltage limited to 5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| 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 Voltage | VCBO | 80 | V | 1 | |||
| Collector-Emitter Voltage | VCEO | 60 | V | 1 | |||
| Emitter-Base Voltage | VEBO | 5 | V | 1 | |||
| Peak Pulse Current | ICM | 2 | A | 1 | |||
| Continuous Collector Current | IC | 1 | A | 1 | |||
| Power Dissipation at Tamb=25°C | Ptot | 1 | W | Tamb=25°C | 1 | ||
| Operating and Storage Temperature Range | Tj:Tstg | -55 | 200 | °C | 1 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | 80 | V | IC=100µA | 1 | ||
| Collector-Emitter Sustaining Voltage | VCEO(sus) | 60 | V | IC=10mA* | 1 | ||
| Emitter-Base Breakdown Voltage | V(BR)EBO | 5 | V | IE=100µA | 1 | ||
| Collector Cut-Off Current | ICBO | 0.1 | µA | VCB=60V | 1 | ||
| Emitter Cut-Off Current | IEBO | 0.1 | µA | VEB=4V | 1 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.35 | V | IC=150mA, IB=15mA* | 1 | ||
| Base-Emitter Saturation Voltage | VBE(sat) | 1.1 | V | IC=150mA, IB=15mA* | 1 | ||
| Static Forward Current Transfer Ratio | hFE | 50 | IC=150mA, VCE=10V* | 1 | |||
| Static Forward Current Transfer Ratio | hFE | 150 | IC=150mA, VCE=10V* | 1 | |||
| Static Forward Current Transfer Ratio | hFE | 10 | IC=1A, VCE=10V* | 1 | |||
| Transition Frequency | fT | 150 | MHz | IC=50mA, VCE=10V, f=100MHz | 1 | ||
| Output Capacitance | Cobo | 15 | pF | VCB=10V, f=1MHz | 1 |
CAD (KiCad official)
- Symbol:
ZTX451 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files:
ztx451-etched.step/ztx451-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ztx451.step/ztx451.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (2 pp, sha256
f8a834969f7e902d, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).