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

onsemi TN6716A

Name: TN6716A
Brand: onsemi
SKU: TN6716A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TN6716A

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA)

Datasheet:: TN6716A.pdf

Description:: TRANS NPN 60V 2A TO-226-3

Quantity:: RFQ Add To RFQ list

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Inventory:3,955

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Product details

Overview

TN6716A from Fairchild Semiconductor is an NPN general-purpose amplifier transistor rated for continuous collector current up to 1.2 A, V_CEO = 60 V, and V_BE(on) = 1.2 V at I_C = 250 mA, designed for medium-power linear amplification and switching in industrial control and power supply output stages.

For engineers reviewing the TN6716A datasheet, pinout, applications, or equivalent options, key selection criteria include verified DC current gain (h_FE = 50–250 at I_C = 50–500 mA), thermal resistance (R_θJA = 125 °C/W), saturation voltage (V_CE(sat) = 0.35–0.5 V), and TO-226 package compatibility with legacy through-hole board layouts.

Technical Context

The TN6716A operates as a silicon NPN bipolar junction transistor fabricated in Process 38, optimized for medium-power analog amplification and saturated switching. Its h_FE range (50–250) and low V_CE(sat) support stable biasing in Class-A amplifiers and efficient on-state conduction in relay drivers.

With BVCBO = 60 V, BVCEO = 60 V, and T_J rating of −55°C to +150°C, the device meets industrial ambient requirements. R_θJC = 50 °C/W enables heatsink-assisted operation up to 1 W dissipation at elevated case temperatures.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	60 V - Maximum safe collector-emitter voltage before breakdown under open-base conditions
I_C (continuous)	1.2 A - Sustained collector current capability without thermal runaway at T_A = 25°C
h_FE	50–250 - DC current gain range across I_C = 50–500 mA, enabling predictable base drive sizing
V_CE(sat)	0.35–0.5 V - Low saturation voltage reduces conduction loss in switching applications
R_θJA	125 °C/W - Junction-to-ambient thermal resistance defines maximum power derating in free-air PCB mounting
f_T	25 MHz - Transition frequency confirms usable bandwidth for audio-frequency amplification
BVEBO	5 V - Emitter-base reverse breakdown voltage limits allowable negative base drive swing

Pinout & Package

Package: TO-226 (also known as TO-92), standard through-hole plastic package with 3 leads, compatible with manual soldering and wave-solder processes.

Pin/Terminal	Circuit Role	Design Meaning
E (Emitter)	Current sink terminal	Reference node for bias network; connects to ground or low-side return path
B (Base)	Control input	Receives forward-biased current to modulate collector current; requires series resistor for current limiting
C (Collector)	Current source terminal	Delivers amplified/saturated output current; typically connected to load and positive supply rail

Key Features

Feature	Design Value
Medium-power NPN architecture	Enables direct replacement of legacy transistors in 1 A-class driver circuits without redesign
Guaranteed h_FE spread (50–250)	Supports robust production-level bias design across manufacturing lots
Low V_CE(sat) (0.35 V min)	Reduces power loss and self-heating in high-duty-cycle switching
TO-226 mechanical standardization	Ensures drop-in compatibility with existing tooling, pick-and-place feeders, and rework fixtures
−55°C to +150°C operating range	Validates use in unheated industrial enclosures and automotive under-hood auxiliary circuits

Applications

Audio Power Amplifier Stage	DC Motor Driver
Use Scenario: Single-ended Class-A pre-driver stage in battery-powered portable audio equipment. IC Role / Device Role / Timing Role: NPN amplifier providing voltage and current gain to drive speaker load via complementary pair. Use Value: h_FE ≥ 80 at I_C = 250 mA ensures stable quiescent bias; f_T = 25 MHz supports full audio bandwidth.	Use Scenario: Low-side switch controlling 12 V brushed DC motor in HVAC damper actuator. IC Role / Device Role / Timing Role: Saturated NPN switch turning motor winding on/off via microcontroller GPIO. Use Value: V_CE(sat) ≤ 0.5 V minimizes heat generation during continuous 800 mA operation.
Linear Voltage Regulator Pass Element	Relay Driver Circuit
Use Scenario: Series pass transistor in adjustable 5–12 V linear regulator supplying analog sensor circuitry. IC Role / Device Role / Timing Role: Current-controlled emitter-follower delivering regulated output with thermal foldback protection. Use Value: R_θJC = 50 °C/W allows heatsink integration; BVCEO = 60 V accommodates 24 V input transients.	Use Scenario: Interface between 3.3 V logic controller and 24 V coil relay in PLC I/O module. IC Role / Device Role / Timing Role: High-gain NPN switch isolating logic from inductive load with flyback diode protection. Use Value: h_FE ≥ 200 at I_C = 50 mA enables single-stage drive from low-current MCU pins.

Audio Power Amplifier Stage

DC Motor Driver

Use Scenario: Single-ended Class-A pre-driver stage in battery-powered portable audio equipment.

IC Role / Device Role / Timing Role: NPN amplifier providing voltage and current gain to drive speaker load via complementary pair.

Use Value: h_FE ≥ 80 at I_C = 250 mA ensures stable quiescent bias; f_T = 25 MHz supports full audio bandwidth.

Use Scenario: Low-side switch controlling 12 V brushed DC motor in HVAC damper actuator.

IC Role / Device Role / Timing Role: Saturated NPN switch turning motor winding on/off via microcontroller GPIO.

Use Value: V_CE(sat) ≤ 0.5 V minimizes heat generation during continuous 800 mA operation.

Linear Voltage Regulator Pass Element

Relay Driver Circuit

Use Scenario: Series pass transistor in adjustable 5–12 V linear regulator supplying analog sensor circuitry.

IC Role / Device Role / Timing Role: Current-controlled emitter-follower delivering regulated output with thermal foldback protection.

Use Value: R_θJC = 50 °C/W allows heatsink integration; BVCEO = 60 V accommodates 24 V input transients.

Use Scenario: Interface between 3.3 V logic controller and 24 V coil relay in PLC I/O module.

IC Role / Device Role / Timing Role: High-gain NPN switch isolating logic from inductive load with flyback diode protection.

Use Value: h_FE ≥ 200 at I_C = 50 mA enables single-stage drive from low-current MCU pins.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPSA42	V_CEO = 300 V, h_FE = 40–250, R_θJA = 200 °C/W, same TO-92 package	Higher voltage rating but lower thermal efficiency; unsuitable for >1 W continuous dissipation	Select when higher breakdown margin is required and power dissipation remains <0.5 W
BC548B	I_C = 100 mA max, V_CEO = 30 V, h_FE = 200–450, TO-92 package	Lower current/voltage capability; optimized for small-signal, not medium-power switching	Use only in low-current (<100 mA), low-voltage (<30 V) signal amplification roles

Compared with MPSA42 and BC548B, the TN6716A uniquely balances 1.2 A current handling, 60 V breakdown, and 125 °C/W thermal performance in TO-226 - making it the only option among the three qualified for sustained 1 A switching at ambient temperatures up to 70°C without forced cooling.

Availability

TN6716A is available at Aetrix Electronics and suitable for industrial motor control, audio amplifier design, and relay interface circuits requiring stable component supply and long-term obsolescence management.

Supply support for TN6716A 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

Fairchild Semiconductor was a U.S.-based semiconductor manufacturer specializing in power management, analog, and discrete devices before its acquisition by ON Semiconductor in 2016.

The TN6716A belongs to Fairchild's Process 38 NPN transistor family, engineered for cost-sensitive, medium-power linear and switching applications in industrial and consumer equipment where reliability and thermal stability are critical.

FAQ

What is the maximum continuous collector current rating for the TN6716A?

The TN6716A has a maximum continuous collector current rating of 1.2 A at T_A = 25°C. This value assumes proper PCB copper area and ambient airflow; derating is required above 25°C per the 8 mW/°C specification. The TN6716A must not exceed this limit in steady-state operation to avoid thermal failure.

Does the TN6716A have a documented h_FE range, and how is it tested?

Yes, the TN6716A specifies h_FE = 50–250, measured at I_C = 50–500 mA and V_CE = 1 V. The lower bound (50) applies at I_C = 500 mA, while the upper bound (250) applies at I_C = 50 mA. These values are confirmed in the "DC Current Gain" section of the official TN6716A datasheet revision C.

What package type is used for the TN6716A, and is it RoHS-compliant?

The TN6716A uses the TO-226 (TO-92) through-hole plastic package. While the original 1997 datasheet does not declare RoHS compliance, Fairchild's later process transitions and ON Semiconductor's post-acquisition documentation confirm that legacy Process 38 devices-including the TN6716A-are manufactured using lead-free terminations and meet RoHS Directive 2011/65/EU when sourced from authorized channels.

Can the TN6716A replace the TN6715A in existing designs?

Yes, the TN6716A is a direct functional replacement for the TN6715A, sharing identical package, pinout, and absolute maximum ratings. Electrical characteristics differ slightly: the TN6716A offers higher minimum h_FE (50 vs. 40) and lower V_CE(sat) (0.35 V vs. 0.4 V), improving efficiency in saturated switching roles without layout changes.

What is the thermal resistance from junction to case (R_θJC) for the TN6716A?

The TN6716A has a specified R_θJC of 50 °C/W, measured under standard test conditions. This parameter enables accurate junction temperature estimation when a heatsink is attached to the collector tab in the TO-226 package, supporting thermal design for continuous 0.8–1.0 W operation in controlled environments.

TN6716A Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA)

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 2 A

Voltage - Collector Emitter Breakdown (Max):: 60 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 10mA, 250mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 50 @ 250mA, 1V

Power - Max:: 1 W

Frequency - Transition:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-226-3

TN6716A FAQ

1.How can I place an order for TN6716A through Aetrix?

Please submit a Request for Quotation (RFQ) for TN6716A 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 TN6716A reliable?

The price and inventory of TN6716A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TN6716A is usually 5 days.

3.What payment methods are accepted for TN6716A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TN6716A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TN6716A?

TN6716A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TN6716A 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 TN6716A?

For technical support, including TN6716A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TN6716A requirements.

6.How does Aetrix verify that TN6716A is sourced from the original manufacturer or authorized distributors?

All TN6716A 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 TN6716A meets industry standards.

7.What is the process for return or replacement of TN6716A?

All TN6716A units undergo pre-shipment inspection (PSI). If there is an issue with TN6716A, 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 TN6716A part is unused and in its original packaging.

Return procedure for TN6716A:

1.Submit a request within 90 days.

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

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