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

Diodes Incorporated ZXTN25100BFHTA

Name: ZXTN25100BFHTA
Brand: Diodes Incorporated
SKU: ZXTN25100BFHTA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZXTN25100BFHTA

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: ZXTN25100BFHTA.pdf

Description:: TRANS NPN 100V 3A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Inventory:16,799

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Product details

Overview

ZXTN25100BFHTA from Diodes Incorporated is a 100V NPN low-saturation transistor in SOT23 package, designed for high-voltage switching with BV_CEO > 100V, V_CE(SAT) < 80 mV @ 1 A, R_CE(SAT) = 67 mΩ, I_C = 3 A continuous, and AEC-Q101 qualification - used in automotive lamp relay drivers and industrial solenoid control.

For engineers reviewing the ZXTN25100BFHTA datasheet, ZXTN25100BFHTA pinout, ZXTN25100BFHTA application, or ZXTN25100BFHTA equivalent, key selection criteria include forward blocking voltage (170 V), reverse blocking capability (6 V), thermal resistance (69 °C/W on 50 mm × 50 mm 2 oz Cu), and high-current h_FE stability up to 3 A.

Technical Context

This NPN bipolar junction transistor operates as a high-voltage, high-current switch with forward-blocking capability up to 170 V (BV_CEX) and robust reverse-emitter protection (BVECO = 6 V). Its low R_CE(SAT) of 67 mΩ enables efficient power delivery at 3 A DC.

The device delivers stable current gain (h_FE = 20–300) across 10 mA–3 A collector current range at V_CE = 2 V, with saturation voltages specified under pulsed conditions (≤300 µs, ≤2% duty cycle) to ensure reliable switching performance in motor drive and load control circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - maximum safe collector-emitter voltage in normal forward-active switching mode
V_CEX	170 V - forward-blocking voltage enabling use in high-voltage transient-tolerant circuits
V_CE(SAT)	< 80 mV @ 1 A - ensures minimal conduction loss and heat generation during saturated switching
I_C (continuous)	3 A - supports high-power loads such as solenoids and DC motors without external heatsinking
R_CE(SAT)	67 mΩ - low on-resistance reduces I²R losses and improves system efficiency
P_D (max)	1.25 W - power dissipation limit on 50 mm × 50 mm 2 oz Cu PCB, defining thermal design margin
h_FE	20–300 @ I_C = 10 mA–3 A - wide gain range supports both small-signal biasing and high-current drive

Pinout & Package

Package: SOT23 - surface-mount plastic package with matte tin-plated leads, UL 94V-0 rated, moisture sensitivity level 1, weight ≈ 0.008 g.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	E	Current return path; connected to ground or low-side reference in common-emitter switching
2 (Base)	B	Control input; requires ~300 mA drive at 3 A collector current for full saturation
3 (Collector)	C	High-side load connection; handles up to 170 V blocking and 3 A continuous current

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (8 kV HBM)
Low V_CE(SAT)	< 80 mV @ 1 A enables <100 mW conduction loss, reducing thermal stress in compact layouts
High BV_CEX	170 V forward-blocking rating allows direct interface with 12/24 V automotive systems plus transients
Green construction	Halogen- and antimony-free, RoHS-compliant molding compound meeting JEDEC J-STD-020 Level 1
Complementary PNP	ZXTP25100BFH available for push-pull or H-bridge configurations requiring matched specs

Applications

Lamp Relay Driver

Solenoid Control

Use Scenario: Driving 12 V automotive headlamp relays subject to load dump transients up to 120 V.

IC Role / Device Role / Timing Role: High-side NPN switch controlling relay coil current with fast turn-off (t_f = 95 ns) and low saturation loss.

Use Value: 170 V BV_CEX withstands ISO 7637-2 pulse 5a transients; 67 mΩ R_CE(SAT) minimizes coil heating during PWM dimming.

Use Scenario: Industrial pneumatic valve solenoid actuation requiring 3 A peak hold current.

IC Role / Device Role / Timing Role: Low-saturation switch delivering sustained 3 A collector current with h_FE ≥ 20 at full load.

Use Value: 1.25 W power rating and 69 °C/W R_θJA (50 mm × 50 mm 2 oz Cu) enable thermally robust operation without heatsink.

Motor Drive Stage

Industrial Power Switch

Use Scenario: Brushed DC motor H-bridge half-bridge stage in factory automation equipment.

IC Role / Device Role / Timing Role: NPN switch paired with complementary ZXTP25100BFH PNP for bidirectional control.

Use Value: Matched V_CE(SAT) and h_FE specs between NPN/PNP reduce shoot-through risk and improve current symmetry.

Use Scenario: Programmable logic controller (PLC) output module switching 24 V DC loads up to 2 A.

IC Role / Device Role / Timing Role: General-purpose high-voltage discrete switch interfacing microcontroller GPIOs to industrial loads.

Use Value: 100 V V_CEO and 8 kV HBM ESD rating ensure immunity to field-induced noise and contact discharge in harsh environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage NPN switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT4401	V_CEO = 40 V, I_C = 600 mA, V_CE(SAT) = 750 mV @ 150 mA - lower voltage/current rating, higher saturation loss	Not suitable for 100 V+ automotive transients or 3 A loads; limited to low-power signal switching	Select only for cost-sensitive, low-voltage (<30 V), sub-1 A applications where AEC-Q101 is not required
BC817-40	V_CEO = 45 V, I_C = 500 mA, h_FE = 250–630 - higher gain but insufficient voltage blocking and current capacity	Cannot replace ZXTN25100BFHTA in lamp relay or solenoid drivers due to BV_CEO shortfall and thermal derating limits	Use only in general-purpose 5–12 V logic-level switching where high gain and low cost outweigh voltage/current needs

Compared with MMBT4401 and BC817-40, ZXTN25100BFHTA provides 2.5× higher voltage blocking, 6× higher continuous current, and 10× lower on-resistance - making it uniquely suited for AEC-Q101-compliant, high-power automotive and industrial switching where thermal and transient robustness are critical.

Availability

ZXTN25100BFHTA is available at Aetrix Electronics and suitable for lamp relay drivers, solenoid control modules, and motor drive stages requiring stable component supply, automotive-grade reliability, and high-voltage transient tolerance.

Supply support for ZXTN25100BFHTA 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

The ZXTN series targets high-voltage, high-current bipolar switching applications, with design focus on low saturation loss, AEC-Q101 compliance, and robust thermal performance in compact SOT23 packaging.

FAQ

What is the maximum safe operating voltage for ZXTN25100BFHTA in continuous DC applications?

The maximum continuous collector-emitter voltage is 100 V (V_CEO). For transient or forward-blocking operation, the device supports up to 170 V (V_CEX) when the base-emitter junction is properly biased - confirmed per Absolute Maximum Ratings table in DS33703 Rev. 3-2.

Does ZXTN25100BFHTA require a heatsink in standard PCB layouts?

No heatsink is required when mounted on a 50 mm × 50 mm 2 oz copper area: its R_θJA is 69 °C/W, allowing 1.25 W dissipation at ≤75 °C ambient rise. On smaller pads (e.g., 15 mm × 15 mm 1 oz Cu), R_θJA rises to 171 °C/W - limiting usable power to ~350 mW without forced cooling.

How does the h_FE behavior change at 3 A collector current?

At I_C = 3 A and V_CE = 2 V, h_FE is specified as 20–300 (min–max), with typical value ~85. This wide range reflects process variation but ensures sufficient gain for saturation with I_B ≥ 300 mA - verified in Electrical Characteristics table (DS33703 p.4).

Is ZXTN25100BFHTA pin-compatible with other SOT23 NPN transistors?

Yes - it uses standard SOT23 pinout (Emitter=1, Base=2, Collector=3), matching industry convention. However, electrical compatibility requires verification of V_CEO, I_C, and V_CE(SAT); generic SOT23 NPNs like MMBT2222A lack the 100 V rating and 3 A capability of this part.

ZXTN25100BFHTA Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 3 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 250mV @ 300mA, 3A

Current - Collector Cutoff (Max):: 50nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 10mA, 2V

Power - Max:: 1.25 W

Frequency - Transition:: 160MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

ZXTN25100BFHTA FAQ

1.How can I place an order for ZXTN25100BFHTA through Aetrix?

Please submit a Request for Quotation (RFQ) for ZXTN25100BFHTA 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 ZXTN25100BFHTA reliable?

The price and inventory of ZXTN25100BFHTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTN25100BFHTA is usually 5 days.

3.What payment methods are accepted for ZXTN25100BFHTA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTN25100BFHTA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZXTN25100BFHTA?

ZXTN25100BFHTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZXTN25100BFHTA 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 ZXTN25100BFHTA?

For technical support, including ZXTN25100BFHTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTN25100BFHTA requirements.

6.How does Aetrix verify that ZXTN25100BFHTA is sourced from the original manufacturer or authorized distributors?

All ZXTN25100BFHTA 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 ZXTN25100BFHTA meets industry standards.

7.What is the process for return or replacement of ZXTN25100BFHTA?

All ZXTN25100BFHTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTN25100BFHTA, 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 ZXTN25100BFHTA part is unused and in its original packaging.

Return procedure for ZXTN25100BFHTA:

1.Submit a request within 90 days.

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

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