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Diodes Incorporated ZTX453STZ
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- Part No.:
- ZTX453STZ
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- E-Line-3, Formed Leads
- Datasheet:
-
ZTX453STZ.pdf
- Description:
- TRANS NPN 100V 1A E-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:3,908
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Product details
Overview
ZTX453STZ from Diodes Incorporated is an NPN silicon planar medium-power transistor rated for 100 V VCEO, 1 A continuous collector current, and 1 W power dissipation in E-Line package. It delivers hFE = 40–200 at IC = 150 mA, supports 150 MHz fT, and is used in linear amplification and switching stages of industrial power supplies.
For engineers reviewing the ZTX453STZ datasheet, ZTX453STZ pinout, ZTX453STZ application, or ZTX453STZ equivalent, key selection criteria include VCEO ≥ 100 V, IC ≥ 1 A, hFE range, thermal performance in E-Line, and RoHS/Green compliance for high-reliability board-level designs.
Technical Context
This NPN bipolar junction transistor operates with a minimum BVCEO of 100 V and supports DC collector currents up to 1 A continuously, with 2 A peak pulse capability. Its fT of 150 MHz enables use in audio-frequency amplification and moderate-speed switching.
Thermal operation spans –55 °C to +150 °C, and it features 8 kV HBM ESD robustness. The device uses matte tin-plated leads, conforms to J-STD-020 Level 1 moisture sensitivity, and employs halogen/antimony-free green molding compound rated UL 94V-0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 V - Maximum safe collector-emitter voltage before breakdown under open-base condition |
| IC | 1 A - Continuous DC collector current rating defining steady-state power stage capacity |
| PD | 1 W - Maximum power dissipation at TA = 25 °C, limiting thermal design margin in E-Line package |
| hFE | 40–200 - DC current gain range at VCE = 10 V, critical for bias stability in amplifier circuits |
| fT | 150 MHz - Transition frequency indicating usable bandwidth for small-signal amplification |
| VCE(SAT) | ≤ 0.7 V @ IC = 150 mA, IB = 15 mA - Low saturation voltage enabling efficient switching in driver stages |
| ESD HBM | 8,000 V - Robustness against human-body electrostatic discharge during handling and assembly |
Pinout & Package
E-Line package: molded plastic case (UL 94V-0), 159 mg weight, matte tin-plated leads, lead-free and halogen-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal | Reference node for biasing; connects to ground or low-side return path in common-emitter configurations |
| Base (B) | Control input | Accepts drive current to modulate collector current; requires external resistor network for stable DC bias |
| Collector (C) | Current source terminal | Connects to load or supply rail; handles full output current and voltage swing in switching/amplifier topologies |
Key Features
| Feature | Design Value |
|---|---|
| 100 V VCEO rating | Enables use in 48 V and 60 V industrial bus interfaces without derating in standard ambient conditions |
| 1 A continuous IC | Supports medium-power output stages in relay drivers and fan controllers without heatsinking below 50 °C ambient |
| 150 MHz fT | Permits stable small-signal amplification up to audio band (20 kHz) with adequate gain margin |
| 8 kV HBM ESD rating | Reduces need for on-board ESD protection in manually assembled control modules and test fixtures |
| Lead-free & Green compliance | Fulfills EU RoHS 2 and halogen-free requirements for export-ready industrial equipment |
Applications
| Industrial Power Supply Driver | Audio Pre-amplifier Stage |
|---|---|
Use Scenario: Driving MOSFET gate or optocoupler input in isolated 24–48 V DC-DC converter feedback loops. IC Role / Device Role / Timing Role: NPN switch providing level-shifted, current-amplified signal to downstream isolation barrier. Use Value: 100 V VCEO withstands reflected transients; 1 A IC ensures reliable drive into capacitive loads up to 1 nF. | Use Scenario: Low-noise voltage amplification in analog sensor signal conditioning before ADC input. IC Role / Device Role / Timing Role: Discrete Class-A common-emitter amplifier with emitter degeneration for linearity. Use Value: hFE range of 40–200 allows predictable DC bias design; fT = 150 MHz preserves bandwidth beyond audio spectrum. |
| Relay Coil Driver | Fan Speed Controller |
Use Scenario: Direct switching of 12–24 V DC relay coils with flyback diode protection. IC Role / Device Role / Timing Role: Saturated NPN switch turning coil current on/off with minimal VCE(SAT) loss. Use Value: VCE(SAT) ≤ 0.7 V at 150 mA limits power loss to <105 mW, reducing thermal stress in compact enclosures. | Use Scenario: PWM-controlled current source for 2-wire DC cooling fans in embedded controllers. IC Role / Device Role / Timing Role: Linear pass element modulated by microcontroller PWM via base resistor network. Use Value: 1 W PD and –55 °C to +150 °C TJ range support sustained 500 mA fan drive across extended temperature environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZTX450 | VCEO = 60 V, IC = 1 A, fT = 100 MHz | Limited to ≤36 V systems; lower bandwidth restricts audio fidelity | Select when cost sensitivity outweighs voltage headroom and bandwidth needs |
| MJD112 | VCEO = 100 V, IC = 2 A, TO-252 package, higher thermal resistance | Higher current but larger footprint; less suitable for space-constrained E-Line layouts | Prefer for >1 A pulsed loads where PCB area permits DPAK mounting |
Compared with ZTX453STZ, ZTX450 trades voltage margin and bandwidth for lower cost, while MJD112 offers higher peak current in a thermally less efficient package-making ZTX453STZ optimal for balanced voltage, current, size, and thermal performance in E-Line constrained designs.
Availability
ZTX453STZ is available at Aetrix Electronics and suitable for industrial power supplies, relay drivers, audio pre-amplifiers, and fan speed controllers requiring stable component supply and RoHS-compliant manufacturing.
Supply support for ZTX453STZ 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 industrial, computing, and consumer markets.
ZTX453STZ belongs to the ZTX series of medium-power bipolar transistors designed for robust linear amplification and switching in space- and thermal-constrained industrial control applications.
FAQ
What is the maximum operating junction temperature for ZTX453STZ?
The ZTX453STZ has a specified junction temperature range of –55 °C to +150 °C. This allows operation in harsh industrial environments, including enclosed power supplies and motor control cabinets, provided PCB copper area and airflow meet thermal resistance requirements for its 1 W power dissipation in E-Line package.
Is ZTX453STZ pin-compatible with older ZTX453 variants?
Yes-ZTX453STZ uses the same E-Line package and identical pinout (Emitter-Base-Collector) as all ZTX453 family members. The "STZ" suffix denotes tape-and-reel packaging (2000 units per reel); electrical and mechanical specifications remain unchanged from the bulk ZTX453 variant.
Does ZTX453STZ require a heatsink in typical 1 A switching applications?
No heatsink is required for continuous 1 A operation at ambient temperatures ≤50 °C with ≥1 cm² of 2-oz copper pour connected to the collector pad. Thermal resistance RθJA is approximately 125 °C/W in standard JEDEC layout; derating applies above 50 °C ambient or with >50% duty-cycle PWM.
Can ZTX453STZ be used in avalanche mode?
No-the ZTX453STZ is not characterized or rated for controlled avalanche operation. Its BVCEO = 100 V is a DC breakdown limit; operation near or beyond this voltage risks irreversible degradation. Use with appropriate snubbers and voltage clamping is mandatory in inductive switching applications.
ZTX453STZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- E-Line-3, Formed Leads
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 700mV @ 15mA, 150mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 150mA, 10V
- Power - Max:
- 1 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- E-Line (TO-92 compatible)
ZTX453STZ FAQ
1.How can I place an order for ZTX453STZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ZTX453STZ 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 ZTX453STZ reliable?
The price and inventory of ZTX453STZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZTX453STZ is usually 5 days.
3.What payment methods are accepted for ZTX453STZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZTX453STZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZTX453STZ?
ZTX453STZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZTX453STZ 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 ZTX453STZ?
For technical support, including ZTX453STZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZTX453STZ requirements.
6.How does Aetrix verify that ZTX453STZ is sourced from the original manufacturer or authorized distributors?
All ZTX453STZ 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 ZTX453STZ meets industry standards.
7.What is the process for return or replacement of ZTX453STZ?
All ZTX453STZ units undergo pre-shipment inspection (PSI). If there is an issue with ZTX453STZ, 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 ZTX453STZ part is unused and in its original packaging.
Return procedure for ZTX453STZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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