component
3DD4243DY
Public Made by Adomby adom
Jilin Sino-Microelectronics Bipolar (BJT), TO-92-3. 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
markdown3DD4243DY
Jilin Sino-Microelectronics · Bipolar (BJT) · TO-92-3
3DD4243DY from Jilin Sino-Microelectronics, in a TO-92-3. 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; the datasheet gives an emitter-base voltage rating VEBO of 9 V and an emitter-base breakdown V(BR)EBO of at least 9 V. |
| 2 | C | passive | Collector; the datasheet gives VCEO of 400 V, VCES of 700 V, and a DC collector current of 2.0 A (4.0 A pulse). |
| 3 | E | passive | Emitter; the datasheet shows an anti-parallel diode between the emitter and the collector in the symbol. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jilin Sino-Microelectronics |
| Package | TO-92-3 |
| 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-Emitter Voltage (VBE=0) | VCES | 700 | V | Tc=25℃, VBE=0 | 2 | ||
| Collector-Emitter Voltage (IB=0) | VCEO | 400 | V | Tc=25℃, IB=0 | 2 | ||
| Emitter-Base Voltage | VEBO | 9 | V | Tc=25℃ | 2 | ||
| Collector Current (DC) | IC | 2 | A | Tc=25℃ | 2 | ||
| Collector Current (pulse) | ICP | 4 | A | Tc=25℃ | 2 | ||
| Total Dissipation (TO-92) | PC | 1 | W | Tc=25℃, TO-92 | 2 | ||
| Junction Temperature | Tj | 150 | ℃ | Tc=25℃ | 2 | ||
| Storage Temperature | Tstg | -55 | 150 | ℃ | Tc=25℃ | 2 | |
| Collector-Emitter breakdown voltage | V(BR)CEO | 400 | 460 | V | Ic=10mA,IB=0 | 2 | |
| Collector-Base breakdown voltage | V(BR)CBO | 700 | 800 | V | Ic=1mA,IE=0 | 2 | |
| Emitter-Base breakdown voltage | V(BR)EBO | 9 | 16 | V | IE=1mA,Ic=0 | 2 | |
| Collector cut-off current | ICBO | 5 | μA | VCB=700V, IE=0 | 2 | ||
| Collector-emitter cut-off current | ICEO | 10 | μA | VCE=400V,IB=0 | 2 | ||
| Emitter cut-off current | IEBO | 5 | μA | VEB=9V, IC=0 | 2 | ||
| DC current gain | hFE | 19 | 22 | 25 | VCE=5V, IC=200mA | 2 | |
| DC current gain | hFE | 4 | 8 | VCE=5V, IC=2.0A | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.8 | 1.1 | V | IC=2.0A, IB=0.4A | 2 | |
| Base-emitter saturation voltage | VBE(sat) | 1 | 1.2 | V | IC=1.0A, IB=0.2A | 2 | |
| Fall time | tf | 0.7 | μS | VCC=24V IC=0.25A,IB1=-IB2=0.05A | 3 | ||
| Storage time | ts | 5 | μS | VCC=24V IC=0.25A,IB1=-IB2=0.05A | 3 | ||
| Transition frequency | fT | 4 | MHz | VCE=10V, Ic=0.1A | 3 | ||
| Thermal Resistance Junction Ambient TO-92 | Rth(j-a) | 125 | ℃/W | TO-92 | 3 |
CAD (KiCad official)
- Symbol:
3DD4243DY - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
3dd4243dy-etched.step/3dd4243dy-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);3dd4243dy.step/3dd4243dy.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jilin Sino-Microelectronics datasheet (8 pp, sha256
462fde04f61cb6be, retrieved 2026-10-22, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).