BU941ZPFI STMicroelectronics Transistor BJT NPN (Transistor Outline, Vertical) In Stock
The BU941ZPFI from STMicroelectronics is a Darlington NPN power transistor in a TO-3PF isolated package, rated for 15 A collector current and 350 V collector-emitter voltage with a minimum DC current gain of 300, built-in base-emitter diode and resistor for fast turn-off, suited for motor drive, switching regulator, and industrial power control applications.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- BU941ZPFI Datasheet PDF
- Category
- Transistor BJT NPN
- Price
- From $2.2900(MOQ 1)
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of BU941ZPFI?
- 15 A maximum collector current (IC)
- 350 V collector-emitter breakdown voltage (VCEO)
- Minimum DC current gain (hFE) of 300
- Isolated TO-3PF 3-pin package
- Built-in base-emitter diode and resistor Darlington configuration
- RoHS compliant, JESD-609 e3 lead-free finish
What is BU941ZPFI used for?
The BU941ZPFI Darlington power transistor is well suited for high-current switching and motor control applications in industrial equipment, including DC motor drivers, solenoid drivers, and relay switching circuits. Its 350 V collector-emitter rating and 15 A current handling also make it a strong fit for switch-mode power supplies and inductive load driving where high gain and fast switching are required.
What are the specifications of BU941ZPFI?
| YTEOL | 0 |
| Case Connection | ISOLATED |
| Collector Current-Max (IC) | 15A |
| Collector-Emitter Voltage-Max | 350V |
| Configuration | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR |
| DC Current Gain-Min (hFE) | 300 |
| JESD-30 Code | R-PSFM-T3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Polarity/Channel Type | NPN |
| Power Dissipation Ambient-Max | 65W |
| Power Dissipation-Max (Abs) | 65W |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| VCEsat-Max | 2V |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.29.00.95 |
| Country of Origin | South Korea |
Where can I find the BU941ZPFI datasheet?
BU941ZPFI Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for BU941ZPFI?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much collector current can the BU941ZPFI handle in continuous operation?
The BU941ZPFI supports a maximum continuous collector current (IC) of 15 A, combined with a 350 V collector-emitter breakdown voltage, making it suitable for high-power switching and motor drive circuits that demand a minimum DC current gain (hFE) of 300.
How does the TO-3PF package benefit high-current Darlington designs like the BU941ZPFI?
The BU941ZPFI is housed in an isolated TO-3PF 3-pin package that supports its 15 A collector current rating and 350 V blocking voltage, providing a rugged plastic/epoxy body suited for direct heatsink mounting in industrial power stages.
Is the BU941ZPFI manufactured to current environmental compliance standards?
Yes, the BU941ZPFI is RoHS compliant and carries a JESD-609 e3 lead-free finish code, matching its 350 V / 15 A power rating for standardized, environmentally compliant procurement across global supply chains.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.8700 | $4.87 |
| 10+ | $2.7700 | $27.70 |
| 100+ | $2.2900 | $229.00 |
In Stock · 24h Response · Worldwide Shipping
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