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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi D44VH10

Name: D44VH10
Brand: onsemi
SKU: D44VH10
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: D44VH10

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: D44VH10.pdf

Description:: TRANS NPN 80V 15A TO-220

Quantity:: RFQ Add To RFQ list

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Inventory:9,001

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Product details

Overview

D44VH10 from onsemi is an NPN silicon power transistor designed for high-speed switching in switching regulators and high-frequency inverters, with 80 V_CEO, 15 A continuous collector current, 83 W power dissipation at T_C = 25 °C, and low 0.4 V typical V_CE(sat) at I_C = 8 A / I_B = 0.4 A - enabling efficient power stage operation in industrial DC-DC converters.

For engineers reviewing the D44VH10 datasheet, pinout, applications, or equivalent options, key selection considerations include its TO-220 package thermal resistance (R_JC = 1.5 °C/W), 50 MHz f_T, complementary pairing with D45VH10, and specified performance at 100 °C junction temperature.

Technical Context

The D44VH10 operates as a medium-power NPN bipolar junction transistor optimized for hard-switching topologies. Its design emphasizes fast turn-on/turn-off (t_d = 50 ns, t_r = 250 ns, t_s = 700 ns, t_f = 90 ns) and low saturation voltage under high-current drive conditions (I_C/I_B = 10).

Rated for −55 °C to +150 °C junction operation, it features thermal characteristics validated per JEDEC standards: R_JA = 62.5 °C/W (free-air), R_JC = 1.5 °C/W (case), and maximum lead temperature of 275 °C for 5 s soldering - supporting robust thermal management in compact power modules.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 Vdc - supports 48 V and 60 V bus applications with margin against transients
I_C (continuous)	15 Adc - enables use in 10–12 A output stages with derating for reliability
P_D @ T_C = 25 °C	83 W - delivers high power density when mounted on heatsink with low R_θJC
V_CE(sat) typ	0.4 V @ I_C = 8 A, I_B = 0.4 A - reduces conduction loss and heat generation in switching mode
f_T	50 MHz - ensures adequate gain-bandwidth for >100 kHz PWM control loops
R_JC	1.5 °C/W - allows direct thermal path to heatsink for stable high-current operation
h_FE min	35 @ I_C = 2 A, V_CE = 1 V - provides predictable base drive requirements in linear and saturated regions

Pinout & Package

Package: TO-220 (Case 221A, Style 1), 3-lead variant with Collector connected to both pins 2 and 4, Emitter at pin 3, Base at pin 1 - metal tab is electrically connected to Collector for direct heatsink mounting and low-inductance power return.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring ~0.4 A drive for full saturation at 8 A collector current
2 & 4	Collector	High-current power input node; electrically tied to metal tab for thermal and electrical grounding to heatsink
3	Emitter	Power return path; isolated from tab - enables non-ground-referenced emitter configurations

Key Features

Feature	Design Value
Fast switching performance	Combined t_d + t_r + t_s + t_f < 1.1 μs - minimizes switching losses in 50–200 kHz SMPS designs
Low V_CE(sat) at high temperature	Specified up to 100 °C - ensures stable conduction loss across industrial ambient ranges
Complementary PNP pairing	Matched with D45VH10 - simplifies push-pull, H-bridge, and Class-B amplifier layout without gain or V_sat mismatch
Pb-Free and RoHS compliant	Marked "G" suffix - meets global environmental compliance for industrial and consumer end equipment
Robust SOA	Rated for 100 V / 15 A boundary at DC, with defined pulse limits up to 100 ms - supports overload and fault-tolerant design

Applications

Switching Regulators	High-Frequency Inverters
Use Scenario: Primary-side switch in 100–300 W offline flyback or forward converters operating at 65–130 kHz. IC Role / Device Role / Timing Role: High-current NPN power switch controlling energy transfer via base-driven saturation. Use Value: Low 0.4 V V_CE(sat) and 50 MHz f_T reduce conduction and switching losses while maintaining stable gain at elevated temperatures.	Use Scenario: Half-bridge leg in 1–3 kVA UPS or solar microinverter output stage. IC Role / Device Role / Timing Role: Medium-power switching element paired with D45VH10 for complementary drive in bridge topology. Use Value: Matched SOA and thermal specs with D45VH10 enable symmetrical current handling and thermal tracking in bidirectional switching.
Motor Drive Stages	Industrial Power Supplies
Use Scenario: Low-voltage (<60 V) BLDC gate driver output stage or stepper coil driver. IC Role / Device Role / Timing Role: Discrete power switch delivering pulsed current to motor windings with fast turn-off to limit back-EMF stress. Use Value: 700 ns storage time and 90 ns fall time minimize cross-conduction risk during commutation transitions.	Use Scenario: Main pass transistor in programmable bench power supply or lab-grade DC source. IC Role / Device Role / Timing Role: Linear-mode power control device operating in active region with forced cooling. Use Value: Specified h_FE and V_CE(sat) at 100 °C ensure predictable current amplification and thermal stability under sustained load.

Switching Regulators

High-Frequency Inverters

Use Scenario: Primary-side switch in 100–300 W offline flyback or forward converters operating at 65–130 kHz.

IC Role / Device Role / Timing Role: High-current NPN power switch controlling energy transfer via base-driven saturation.

Use Value: Low 0.4 V V_CE(sat) and 50 MHz f_T reduce conduction and switching losses while maintaining stable gain at elevated temperatures.

Use Scenario: Half-bridge leg in 1–3 kVA UPS or solar microinverter output stage.

IC Role / Device Role / Timing Role: Medium-power switching element paired with D45VH10 for complementary drive in bridge topology.

Use Value: Matched SOA and thermal specs with D45VH10 enable symmetrical current handling and thermal tracking in bidirectional switching.

Motor Drive Stages

Industrial Power Supplies

Use Scenario: Low-voltage (<60 V) BLDC gate driver output stage or stepper coil driver.

IC Role / Device Role / Timing Role: Discrete power switch delivering pulsed current to motor windings with fast turn-off to limit back-EMF stress.

Use Value: 700 ns storage time and 90 ns fall time minimize cross-conduction risk during commutation transitions.

Use Scenario: Main pass transistor in programmable bench power supply or lab-grade DC source.

IC Role / Device Role / Timing Role: Linear-mode power control device operating in active region with forced cooling.

Use Value: Specified h_FE and V_CE(sat) at 100 °C ensure predictable current amplification and thermal stability under sustained load.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN power transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD44H10T4G	Same V_CEO (80 V), lower I_C (8 A), TO-252 (DPAK) package, R_JC = 3.0 °C/W	Suitable for surface-mount, lower-power (<50 W) designs where PCB space is constrained	Select when board area is limited and thermal budget allows higher junction rise per watt
BDW53C	Lower V_CEO (60 V), same I_C (15 A), TO-220, h_FE min = 20, no 100 °C spec	Fits 24–48 V systems only; lacks high-temp parameter validation for extended thermal environments	Choose for cost-sensitive 48 V applications where full 80 V margin and 100 °C rating are not required

Compared with MJD44H10T4G and BDW53C, the D44VH10 offers superior thermal performance (R_JC = 1.5 °C/W), guaranteed 100 °C-rated parameters, and faster switching - making it preferred for thermally demanding, high-efficiency 60–80 V industrial power stages.

Availability

D44VH10 is available at Aetrix Electronics and suitable for switching regulators, high-frequency inverters, motor drive stages, and industrial power supplies requiring stable component supply and long-term manufacturability.

Supply support for D44VH10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering high-performance analog, power, and sensor solutions for automotive, industrial, and cloud infrastructure markets.

The D44VH10 belongs to onsemi's Complementary Silicon Power Transistors product line, engineered specifically for high-speed, high-current switching in power conversion and motor control systems where thermal robustness and parameter consistency across temperature are critical.

FAQ

What is the maximum junction temperature specification for the D44VH10?

The D44VH10 has an operating junction temperature range of −55 °C to +150 °C, with all key electrical parameters (including V_CE(sat) and h_FE) explicitly specified at 100 °C in the datasheet - ensuring reliable operation in thermally stressed industrial environments. This rating is validated per JEDEC test conditions and supported by its 1.5 °C/W R_JC.

Is the D44VH10 pin-compatible with other TO-220 NPN transistors like the MJE13009?

No - the D44VH10 uses TO-220 Case 221A Style 1 pinout (Base–Collector–Emitter–Collector), whereas the MJE13009 follows Style 2 (Base–Emitter–Collector). Pin assignments differ: D44VH10 has Collector on pins 2 and 4, while MJE13009 places Emitter on pin 2. Direct substitution requires PCB layout revision.

Does the D44VH10 require a heatsink in standard operation?

Yes - the D44VH10 must be mounted to a heatsink when dissipating more than ~5 W continuously. With R_JC = 1.5 °C/W and R_JA = 62.5 °C/W, junction temperature rises rapidly in free-air; for example, 10 W dissipation yields ΔT_J−C = 15 °C and ΔT_J−A = 625 °C - far exceeding safe limits. Heatsinking is mandatory for rated 83 W operation.

What is the recommended base drive current for full saturation of the D44VH10 at 15 A collector current?

For reliable saturation at I_C = 15 A, the datasheet recommends I_B ≥ 3.0 A (I_C/I_B = 5), based on V_CE(sat) test condition at TC = 100 °C. At room temperature, I_B = 1.5 A (I_C/I_B = 10) achieves ~0.8 V V_CE(sat); however, design margins should target ≥2.5 A to maintain low V_CE(sat) across temperature and process variation.

Can the D44VH10 be used in linear (analog) amplifier applications?

Yes - the D44VH10 is characterized for linear operation with h_FE specified from 0.01 A to 10 A and SOA curves provided for DC and pulsed conditions. Its 150 °C max T_J, low R_JC, and defined Safe Operating Area support Class-A/B audio output stages and precision current sources - but thermal design must account for continuous power dissipation limits.

D44VH10 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 15 A

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 400mA, 8A

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: 20 @ 4A, 1V

Power - Max:: 83 W

Frequency - Transition:: 50MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

D44VH10 FAQ

1.How can I place an order for D44VH10 through Aetrix?

Please submit a Request for Quotation (RFQ) for D44VH10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for D44VH10 reliable?

The price and inventory of D44VH10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D44VH10 is usually 5 days.

3.What payment methods are accepted for D44VH10?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D44VH10 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for D44VH10?

D44VH10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your D44VH10 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for D44VH10?

For technical support, including D44VH10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D44VH10 requirements.

6.How does Aetrix verify that D44VH10 is sourced from the original manufacturer or authorized distributors?

All D44VH10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that D44VH10 meets industry standards.

7.What is the process for return or replacement of D44VH10?

All D44VH10 units undergo pre-shipment inspection (PSI). If there is an issue with D44VH10, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The D44VH10 part is unused and in its original packaging.

Return procedure for D44VH10:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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