ZTX951 Diodes Inc. Transistor BJT PNP (Transistor Outline, Vertical) In Stock
Diodes Inc. ZTX951 is a high-current PNP bipolar junction transistor in a 3-pin E-Line package. It delivers up to 4 A collector current with a 60 V collector-emitter voltage rating and minimum DC current gain (hFE) of 10, suited for power switching and motor drive circuits.
- Manufacturer
- Diodes Inc.
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- ZTX951 Datasheet PDF
- Category
- Transistor BJT PNP
- Temp Range
- ?°C to 200.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 A maximum collector current (IC) with 60 V collector-emitter breakdown voltage for robust power switching
- PNP single transistor in compact 3-pin E-Line (TO-92 style) package for easy PCB integration
- Minimum DC current gain (hFE) of 10 enabling efficient base drive in medium-power amplification stages
- Plastic/epoxy encapsulated body rated for reliable operation in industrial and consumer power applications
Applications
The ZTX951 PNP transistor is well suited for medium-power switching and amplification in motor drive circuits, relay drivers, and DC load control designs operating at up to 60 V and 4 A. Its E-Line package and robust current rating make it a practical choice for battery management systems, power supply regulators, and LED driver stages in consumer and industrial electronics. Designers use the ZTX951 as a high-side switch or darlington driver pair in applications requiring efficient bipolar transistor control of inductive or resistive loads.
Specifications
| Pbfree Code | No |
| YTEOL | 4 |
| Collector Current-Max (IC) | 4A |
| Collector-Emitter Voltage-Max | 60V |
| Configuration | SINGLE |
| DC Current Gain-Min (hFE) | 10 |
| JESD-30 Code | R-PSIP-W3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | PNP |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Terminal Finish | MATTE TIN |
| Terminal Form | WIRE |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transistor Element Material | SILICON |
| Transition Frequency-Nom (fT) | 120MHz |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the absolute maximum ratings for the ZTX951 PNP transistor?
The ZTX951 has a maximum collector current (IC) of 4 A and a collector-emitter voltage (VCEO) of 60 V. Its minimum DC current gain (hFE) is 10, making it suitable for medium-power switching circuits requiring a compact PNP transistor in a 3-pin E-Line package.
For which power switching and drive applications is the ZTX951 a practical PNP transistor choice?
The ZTX951 is well suited for motor drive circuits, relay coil drivers, and high-side DC load switches requiring up to 4 A at 60 V. Its PNP configuration also makes it useful in darlington pair arrangements, linear regulators, and battery charger circuits in consumer and industrial equipment where bipolar transistors outperform MOSFETs at lower gate drive voltages.
How does the E-Line package of the ZTX951 compare to TO-92 or TO-18 packages in PCB assembly?
The ZTX951 E-Line package is a 3-pin single inline package similar in footprint to TO-92 but with a flat body designed for vertical mounting, enabling easier hand or automated PCB assembly. Its 3-pin through-hole leads allow secure mechanical mounting in applications carrying up to 4 A without the thermal mass constraints of surface-mount packages.
When should a designer use ZTX951 instead of a lower-current PNP such as 2N3906?
The ZTX951 is preferred over 2N3906 when collector current exceeds 200 mA, since 2N3906 is limited to 200 mA while ZTX951 handles 4 A with a 60 V rating. For relay, solenoid, or small motor loads drawing 1 A to 4 A, ZTX951 eliminates the need for a separate driver transistor, reducing component count and board space.
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About Diodes Inc.
Diodes Inc. is a leading electronic component manufacturer. FindMyChip sources Diodes Inc. ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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