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2SD1898G-Q-AB3-R
Public Made by Adomby adom
UTC Unisonic Tech Bipolar (BJT), SOT-89. 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
markdown2SD1898G-Q-AB3-R
UTC Unisonic Tech · Bipolar (BJT) · SOT-89
2SD1898G-Q-AB3-R from UTC Unisonic Tech, in a SOT-89. 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 | B | input | Base terminal of the NPN transistor; the datasheet's absolute maximum emitter-base voltage VEBO is 5 V. |
| 2 | C | passive | Collector terminal of the NPN transistor; the absolute maximum collector-base voltage VCBO is 100 V and DC collector current IC is 1 A. |
| 3 | E | passive | Emitter terminal of the NPN transistor; the emitter-base breakdown voltage BVEBO is specified as 5 V at IE=50µA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-89 |
| 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 | BVCBO | 100 | V | IC= 50μA | 2 | ||
| Collector Emitter Breakdown Voltage | BVCEO | 80 | V | IC= 1mA | 2 | ||
| Emitter Base Breakdown Voltage | BVEBO | 5 | V | IE=50μA | 2 | ||
| Collector Cut-Off Current | ICBO | 1 | μA | VCB=80V, IE=0A | 2 | ||
| Emitter Cut-Off Current | IEBO | 1 | μA | VEB=4V, IC=0A | 2 | ||
| DC Current Transfer Ratio | hFE | 82 | 390 | VCE=3V, IC= 0.5A | 2 | ||
| DC Current Transfer Ratio, rank Q classification range | hFE | 120 | 270 | 2 | |||
| Collector-Emitter Saturation Voltage | VCE(SAT) | 0.15 | 0.4 | V | IC=500mA, IB= 20mA | 2 | |
| Transition Frequency | fT | 100 | MHz | VCE=10V, IE= -50mA, f=100MHz | 2 | ||
| Output Capacitance | COB | 20 | pF | VCB= 10V, IE= 0A, f=1MHz | 2 | ||
| Collector-Base Voltage | VCBO | 100 | V | TA=25°C | 2 | ||
| Collector-Emitter Voltage | VCEO | 80 | V | TA=25°C | 2 | ||
| Emitter-Base Voltage | VEBO | 5 | V | TA=25°C | 2 | ||
| Collector Current (DC) | IC | 1 | A | TA=25°C | 2 | ||
| Collector Current (PULSE) | ICP | 2 | A | Duty = 1/2, PW = 200ms (Note 2) | 2 | ||
| Collector Power Dissipation, SOT-89 | PC | 500 | mW | Mounted on 40×40×0.7 mm ceramic board (Note 3) | 2 | ||
| Junction Temperature | TJ | 150 | °C | 2 | |||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
2SD1898G-Q-AB3-R - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
2sd1898g-q-ab3-r-etched.step/2sd1898g-q-ab3-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sd1898g-q-ab3-r.step/2sd1898g-q-ab3-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (3 pp, sha256
da9ee68c37c6267a, retrieved 2026-10-19, 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).