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

onsemi NZT6715

Name: NZT6715
Brand: onsemi
SKU: NZT6715
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NZT6715

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: NZT6715.pdf

Description:: TRANS NPN 40V 1.5A SOT-223-4

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NZT6715 from ON Semiconductor is an NPN general-purpose power transistor designed for medium-power amplification and switching applications up to 1.5 A continuous collector current, with 40 V V_CEO, 50 V V_CB0, and 5.0 V V_EB0, commonly deployed in DC-DC converter output stages and industrial motor drive interface circuits.

For engineers reviewing the NZT6715 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal characteristics, SOT-223 and TO-226 package mapping, real-world use scenarios, and two validated alternative transistors with documented functional trade-offs.

Technical Context

The NZT6715 operates as a silicon NPN bipolar junction transistor fabricated on Fairchild's Process 38, optimized for linear amplification and saturated switching. Its h_FE ranges from 50–250 across 10 mA–1.0 A I_C, supporting both analog gain stages and digital on/off control.

It features low V_CE(sat) of 0.5 V at I_C = 1.0 A / I_B = 100 mA and V_BE(on) of 1.2 V under same conditions, enabling efficient operation in high-current switching nodes. Thermal resistance is R_θJA = 125 °C/W (SOT-223) and 125 °C/W (TO-226), with R_θJC = 50 °C/W.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration.
I_C (continuous)	1.5 A - Continuous collector current rating defining maximum DC load-handling capability.
h_FE @ I_C = 1.0 A	50 min - Minimum DC current gain at full rated current, critical for base drive sizing in switch designs.
V_CE(sat) @ I_C = 1.0 A	0.5 V max - Saturation voltage determining conduction loss and heat generation in switching mode.
T_J range	−55 °C to +150 °C - Operating junction temperature span enabling use in automotive under-hood and industrial ambient environments.
P_D @ T_A = 25 °C	1.0 W - Total power dissipation limit at room ambient, derated by 8.0 mW/°C above 25 °C.
C_cb	30 pF - Collector-base capacitance affecting high-frequency response and switching speed in amplifier or RF-coupled stages.

Pinout & Package

NZT6715 is available in two industry-standard packages: SOT-223 (surface-mount, 4-pin with exposed thermal pad) and TO-226 (through-hole, 3-pin). Both share identical pin assignment: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. The SOT-223 variant includes an integrated thermal tab (Pin 4) electrically connected to the collector for enhanced heatsinking.

Pin/Terminal	Circuit Role	Design Meaning
1 (E)	Emitter	Current return path; referenced to ground or negative rail in common-emitter configurations.
2 (B)	Base	Control terminal; requires ~100 mA drive current to saturate at 1.0 A collector load.
3 (C)	Collector	Main output terminal; connects to load or supply rail; thermally coupled to package tab in SOT-223.
4 (Tab)	Collector (thermal)	Exposed copper pad in SOT-223; must be soldered to PCB copper pour for thermal management per R_θJA spec.

Key Features

Feature	Design Value
High current capability	1.5 A continuous I_C supports direct driving of relays, solenoids, and small motors without external buffering.
Low saturation voltage	V_CE(sat) ≤ 0.5 V reduces conduction losses and self-heating in high-duty-cycle switching applications.
Wide operating temperature	−55 °C to +150 °C junction range enables deployment in harsh industrial and automotive environments.
Process 38 fabrication	Optimized for stable h_FE and low leakage across temperature, with ICBO ≤ 0.1 µA at V_CB = 50 V.

Applications

DC-DC Converter Output Stage	Industrial Motor Interface
Use Scenario: Used as the main switching transistor in non-synchronous buck converter output stage, handling peak currents up to 1.2 A. IC Role / Device Role / Timing Role: Power switch controlling energy transfer from input to output inductor; driven by PWM controller with fixed frequency. Use Value: Low V_CE(sat) minimizes I²R losses during on-state, improving efficiency over alternatives with >0.7 V saturation.	Use Scenario: Drives 24 V DC brushed motor in programmable logic controller (PLC) output module. IC Role / Device Role / Timing Role: High-side or low-side switch enabling ON/OFF control via microcontroller GPIO with base resistor network. Use Value: 1.5 A I_C rating accommodates motor stall current surges without secondary protection circuitry.
Linear Voltage Regulator Pass Element	General-Purpose Signal Amplifier
Use Scenario: Functions as pass transistor in adjustable linear regulator delivering up to 1.0 A load current. IC Role / Device Role / Timing Role: Series regulating element dissipating excess voltage as heat; biased in active region by error amplifier feedback. Use Value: Stable h_FE across temperature ensures consistent regulation loop gain and transient response.	Use Scenario: Amplifies sensor signal (e.g., thermistor bridge output) prior to ADC sampling in data acquisition system. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with 55–250 h_FE providing 20–50 dB voltage gain at 20 MHz. Use Value: C_cb = 30 pF limits bandwidth but provides sufficient gain for sub-10 MHz instrumentation signals.

DC-DC Converter Output Stage

Industrial Motor Interface

Use Scenario: Used as the main switching transistor in non-synchronous buck converter output stage, handling peak currents up to 1.2 A.

IC Role / Device Role / Timing Role: Power switch controlling energy transfer from input to output inductor; driven by PWM controller with fixed frequency.

Use Value: Low V_CE(sat) minimizes I²R losses during on-state, improving efficiency over alternatives with >0.7 V saturation.

Use Scenario: Drives 24 V DC brushed motor in programmable logic controller (PLC) output module.

IC Role / Device Role / Timing Role: High-side or low-side switch enabling ON/OFF control via microcontroller GPIO with base resistor network.

Use Value: 1.5 A I_C rating accommodates motor stall current surges without secondary protection circuitry.

Linear Voltage Regulator Pass Element

General-Purpose Signal Amplifier

Use Scenario: Functions as pass transistor in adjustable linear regulator delivering up to 1.0 A load current.

IC Role / Device Role / Timing Role: Series regulating element dissipating excess voltage as heat; biased in active region by error amplifier feedback.

Use Value: Stable h_FE across temperature ensures consistent regulation loop gain and transient response.

Use Scenario: Amplifies sensor signal (e.g., thermistor bridge output) prior to ADC sampling in data acquisition system.

IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with 55–250 h_FE providing 20–50 dB voltage gain at 20 MHz.

Use Value: C_cb = 30 pF limits bandwidth but provides sufficient gain for sub-10 MHz instrumentation signals.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD127G	Higher V_CEO = 100 V, lower h_FE = 30–120, same SOT-223 package.	Better suited for higher-voltage flyback snubbers or AC line interface; less ideal for low-V_CE efficiency-critical DC-DC stages.	Select when system bus voltage exceeds 40 V but 1.5 A current remains required.
ZTX653	Lower I_C = 1.0 A, higher h_FE = 100–300, TO-92 package (no thermal pad).	Acceptable for low-power amplification or signal switching; unsuitable for sustained 1.2 A loads due to thermal limitations.	Choose only for space-constrained, low-dissipation applications where thermal performance is secondary.

Compared with NZT6715, MJD127G trades off gain and saturation voltage for higher breakdown voltage, while ZTX653 sacrifices current capacity and thermal robustness for higher small-signal gain in a smaller footprint-neither is pin-compatible, requiring layout revision if substituted.

Availability

NZT6715 is available at Aetrix Electronics and suitable for DC-DC converters, industrial motor interfaces, linear regulator pass elements, and general-purpose amplifier circuits requiring stable component supply across production volumes.

Supply support for NZT6715 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

ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud infrastructure markets.

NZT6715 belongs to ON Semiconductor's legacy Fairchild NPN power transistor product line, engineered for cost-effective, thermally robust medium-power switching and amplification in industrial control and power conversion systems.

FAQ

What is the maximum continuous collector current rating for NZT6715?

The NZT6715 has a maximum continuous collector current (I_C) rating of 1.5 A at T_A = 25 °C, derated linearly above that ambient temperature. This rating is confirmed in the Absolute Maximum Ratings table and applies to both SOT-223 and TO-226 package variants of the NZT6715. Operation beyond this limit risks thermal runaway or permanent device failure.

Does NZT6715 support surface-mount assembly, and what is its thermal pad connection?

Yes, the NZT6715 in SOT-223 package supports surface-mount assembly and includes an exposed thermal pad (Pin 4) electrically tied to the collector. Per datasheet thermal characterization, this pad must be soldered to ≥6 cm² of PCB copper to achieve the specified R_θJA = 125 °C/W. The NZT6715 TO-226 variant is through-hole mounted and lacks a thermal pad.

What is the minimum DC current gain (h_FE) of NZT6715 at 1.0 A collector current?

The minimum DC current gain (h_FE) for NZT6715 at I_C = 1.0 A, V_CE = 1.0 V, and T_A = 25 °C is 50, as specified in the Electrical Characteristics table. This value ensures predictable base drive requirements-e.g., 20 mA base current suffices to fully saturate the NZT6715 at 1.0 A collector load.

Can NZT6715 be used in linear regulator applications, and what thermal considerations apply?

Yes, NZT6715 is suitable as a pass transistor in linear regulators, leveraging its 1.5 A I_C and −55 °C to +150 °C T_J range. However, power dissipation must be strictly limited: P_D = 1.0 W at 25 °C, derated by 8.0 mW/°C. For example, at 75 °C ambient, max allowable dissipation drops to 0.6 W-requiring careful thermal design to avoid exceeding 150 °C junction temperature in the NZT6715.

Is NZT6715 pin-compatible with TN6715A, and how do their specifications compare?

Yes, NZT6715 and TN6715A are functionally identical and pin-compatible-both share identical electrical specs, thermal ratings, and package pinouts (E-B-C). The NZT6715 designation reflects ON Semiconductor's post-Fairchild nomenclature update, replacing underscores with dashes; no parametric or mechanical differences exist between NZT6715 and TN6715A in production units.

NZT6715 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1.5 A

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 100mA, 1A

Current - Collector Cutoff (Max):: 100µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 50 @ 1A, 1V

Power - Max:: 1 W

Frequency - Transition:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223-4

NZT6715 FAQ

1.How can I place an order for NZT6715 through Aetrix?

Please submit a Request for Quotation (RFQ) for NZT6715 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 NZT6715 reliable?

The price and inventory of NZT6715 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZT6715 is usually 5 days.

3.What payment methods are accepted for NZT6715?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZT6715 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZT6715?

NZT6715 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZT6715 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 NZT6715?

For technical support, including NZT6715 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZT6715 requirements.

6.How does Aetrix verify that NZT6715 is sourced from the original manufacturer or authorized distributors?

All NZT6715 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 NZT6715 meets industry standards.

7.What is the process for return or replacement of NZT6715?

All NZT6715 units undergo pre-shipment inspection (PSI). If there is an issue with NZT6715, 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 NZT6715 part is unused and in its original packaging.

Return procedure for NZT6715:

1.Submit a request within 90 days.

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

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