component
ZTX553
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
markdownZTX553
Diodes Incorporated · Bipolar (BJT) · TO-92
ZTX553 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 of the PNP transistor; VCEO -100V for ZTX553, continuous IC -1A, peak ICM -2A. |
| 2 | B | passive | Base of the PNP transistor; emitter-base voltage limited to -5V (VEBO). |
| 3 | E | passive | Emitter of the PNP transistor; total power dissipation 1W at Tamb=25°C. |
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 | -120 | V | 1 | |||
| Collector-Emitter Voltage | VCEO | -100 | 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 | 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 | -120 | V | IC=-100µA | 1 | ||
| Collector-Emitter Sustaining Voltage | VCEO(sus) | -100 | 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=-100V | 1 | ||
| Emitter Cut-Off Current | IEBO | -0.1 | µA | VEB=-4V | 1 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | -0.25 | V | IC=-150mA, IB=-15mA; pulsed, pulse width=300µs, duty cycle ≤2% | 1 | ||
| Base-Emitter Saturation Voltage | VBE(sat) | -1.1 | V | IC=-150mA, IB=-15mA; pulsed, pulse width=300µs, duty cycle ≤2% | 1 | ||
| Base-Emitter Turn-on Voltage | VBE(on) | -1 | V | IC=-150mA, VCE=-10V; pulsed, pulse width=300µs, duty cycle ≤2% | 1 | ||
| Static Forward Current Transfer Ratio | hFE | 40 | 200 | IC=-150mA, VCE=-10V; pulsed, pulse width=300µs, duty cycle ≤2% | 1 | ||
| Static Forward Current Transfer Ratio | hFE | 10 | IC=-1A, VCE=-10V; pulsed, pulse width=300µs, duty cycle ≤2% | 1 | |||
| Transition Frequency | fT | 150 | MHz | IC=-50mA, VCE=-10V, f=100MHz | 1 | ||
| Output Capacitance | Cobo | 12 | MHz | VCB=-10V, f=1MHz | 1 | ||
| Power Dissipation derating | Ptot | 5.7 | mW/°C | derate above 25°C | 1 |
CAD (KiCad official)
- Symbol:
ZTX553 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files:
ztx553-etched.step/ztx553-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ztx553.step/ztx553.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (2 pp, sha256
46844f52d718d8bb, retrieved 2026-10-16, 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).