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Diodes Incorporated DXT13003EK-13
- Part No.:
- DXT13003EK-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DXT13003EK-13.pdf
- Description:
- TRANS NPN 460V 1.5A TO-252-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,238
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Product details
Overview
DXT13003EK-13 from Diodes Incorporated is an NPN high-voltage power transistor in TO252 (DPAK) package, rated for 460V VCEO, 700V VCES, and 1.5A continuous collector current. It serves as a switching element in offline AC-DC power supplies, flyback converters, and industrial motor control circuits where high breakdown voltage and robust thermal performance are required.
For engineers reviewing the DXT13003EK-13 datasheet, DXT13003EK-13 pinout, DXT13003EK-13 application, or DXT13003EK-13 equivalent, key selection criteria include verified VCEO/VCES ratings, SOA compliance at 125°C, RθJA derating under defined PCB copper area, hFE consistency across IC = 0.3–1.0A, and ESD HBM rating of 8kV.
Technical Context
This device operates as a single NPN bipolar junction transistor optimized for high-voltage switching with low VCE(sat) (≤0.29V at IC = 1A/IB = 0.25A) and fast switching times (tON = 0.43µs, tF = 0.28µs). Its safe operating area supports pulsed operation up to 700V with IC ≤ 3A under <5ms pulse width and ≤10% duty cycle.
Thermal design relies on the exposed collector pad: RθJL = 3°C/W enables efficient heat transfer to PCB copper, while RθJA varies from 32°C/W (50mm × 50mm 2oz Cu) to 80°C/W (minimum recommended pad), requiring layout-aware thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 460V - Maximum collector-emitter voltage with base open; defines DC blocking capability in primary-side switch applications |
| VCES | 700V - Collector-emitter voltage with base shorted to emitter; critical for avalanche-rated snubberless designs |
| IC (cont.) | 1.5A - Continuous collector current at TA = 25°C with specified PCB copper; sets steady-state power handling limit |
| VCE(sat) | 0.29V @ IC = 1A, IB = 0.25A - Low saturation voltage reduces conduction loss and thermal stress in switching mode |
| hFE | 15–30 @ IC = 0.3–1.0A - Current gain range determines required base drive strength and driver stage sizing |
| ESD HBM | 8,000V - Human Body Model rating ensures robustness during board assembly and handling |
| fT | 4MHz - Transition frequency supports switching frequencies up to ~200kHz with adequate gain margin |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed collector pad for thermal dissipation. Molded plastic body meets UL 94V-0 flammability rating and RoHS 3 / halogen-free requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Tab) | Main current path output terminal | Exposed metal pad electrically connected to collector; must be soldered to large copper pour for thermal and electrical integrity |
| Emitter | Current return path to ground/reference | Low-inductance connection point for emitter loop; critical for minimizing switching oscillation in high-dI/dt applications |
| Base | Control input for transistor turn-on/off | Requires current-limited drive (max IB = 0.75A continuous); gate resistor selection affects switching speed and ringing |
Key Features
| Feature | Design Value |
|---|---|
| High VCES (700V) | Enables direct use in 380VAC rectified bus applications without external clamping, reducing component count |
| Low VCE(sat) (0.29V) | Reduces conduction loss to ≤0.44W at 1.5A, easing thermal design in enclosed power supplies |
| RθJL = 3°C/W | Allows >80% of junction heat to flow directly into PCB copper, supporting compact heatsink-less layouts |
| ESD HBM 8kV | Eliminates need for additional ESD protection during automated SMT placement and board handling |
| Lead-free & Green | Complies with RoHS 3, AEC-Q101 pre-qualification readiness, and automotive change-control requirements |
Applications
| Industrial Flyback Power Supply | AC-DC Adapter Primary Switch |
|---|---|
Use Scenario: 24W offline flyback converter for industrial sensors operating from 85–265VAC input. IC Role / Device Role / Timing Role: Primary-side high-voltage switching transistor controlling energy transfer via transformer primary winding. Use Value: 460V VCEO withstands reflected output voltage plus leakage spike; 1.5A IC supports peak currents up to 2.25A with 50% margin. | Use Scenario: Compact 12V/2A wall adapter for consumer electronics with universal AC input. IC Role / Device Role / Timing Role: Main switching element in quasi-resonant flyback topology, driven by PWM controller. Use Value: 0.29V VCE(sat) limits conduction loss to <0.5W; TO252 thermal performance sustains 50°C ambient without heatsink. |
| Motor Control Snubberless Driver | LED Streetlight Driver |
Use Scenario: Half-bridge gate driver stage for 24V brushed DC motor in HVAC actuators. IC Role / Device Role / Timing Role: High-side switch enabling bidirectional current control with integrated freewheeling path. Use Value: 700V VCES absorbs inductive kickback without external TVS; 1.64µs storage time ensures clean commutation. | Use Scenario: Constant-current LED driver for outdoor street lighting operating from 277VAC line. IC Role / Device Role / Timing Role: Primary switch in isolated buck-boost topology delivering 350mA to 48V LED string. Use Value: 8kV ESD HBM prevents field failure during installation; RθJA = 32°C/W enables 60°C case temperature at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN high-voltage power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STN13003K | VCEO = 400V (lower), VCES = 600V, hFE min = 10 @ IC = 0.5A | Not suitable for 380VAC-derived buses exceeding 400V; requires snubber network | Select only if system max VCE remains ≤380V and thermal margin allows higher VCE(sat) |
| BU508AF | VCEO = 1000V, IC = 10A, TO-220 package, slower tF = 0.5µs | Larger footprint, higher thermal mass; suited for higher-power (>50W) but lower-frequency (<50kHz) designs | Choose when higher current headroom and ruggedness outweigh size and switching speed constraints |
Compared with STN13003K and BU508AF, DXT13003EK-13 delivers optimal balance of voltage rating, SOA, and surface-mount compatibility for 20–40W industrial and lighting power stages-without compromising thermal response or ESD resilience.
Availability
DXT13003EK-13 is available at Aetrix Electronics and suitable for industrial flyback power supplies, AC-DC adapters, motor control drivers, and LED streetlight drivers requiring stable component supply and long-term BOM continuity.
Supply support for DXT13003EK-13 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 power management, signal integrity, and protection solutions.
This part belongs to Diodes' high-voltage bipolar transistor product line, engineered for robust switching in offline power conversion, motor drives, and lighting systems where safety isolation and thermal stability are critical.
FAQ
Is DXT13003EK-13 still in active production?
No-DXT13003EK-13 is officially marked obsolete per Diodes' datasheet DS37296 Rev. 3-4 (April 2023). Aetrix Electronics maintains limited legacy stock and supports last-time-buy programs with full traceability and documentation for ongoing production runs.
What is the maximum allowable PCB copper area for thermal performance validation?
The datasheet specifies RθJA = 32°C/W for 50mm × 50mm 2oz copper on FR-4. For validated thermal performance, use this exact layout or apply derating curves from Figure 6; smaller pads increase RθJA to 51–80°C/W depending on copper weight and area.
Can DXT13003EK-13 replace DXT13003E in existing designs?
Yes-the "-13" suffix denotes tape-and-reel packaging (2,500 pcs/reel, 16mm tape width); electrically and thermally identical to DXT13003E. Pinout, marking ("13003E"), and absolute maximum ratings are fully compatible.
Does this transistor meet AEC-Q101 stress test requirements?
While not AEC-Q101 qualified out-of-box, Diodes states it is "for automotive applications requiring specific change control (i.e., parts qualified to AEC-Q100/101/104/200…)"-indicating qualification readiness. Customers must engage Diodes' automotive team for PPAP and formal qualification documentation.
DXT13003EK-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 460 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 250mA, 1A
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 15 @ 300mA, 2V
- Power - Max:
- 1.6 W
- Frequency - Transition:
- 4MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
DXT13003EK-13 FAQ
1.How can I place an order for DXT13003EK-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DXT13003EK-13 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 DXT13003EK-13 reliable?
The price and inventory of DXT13003EK-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DXT13003EK-13 is usually 5 days.
3.What payment methods are accepted for DXT13003EK-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DXT13003EK-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DXT13003EK-13?
DXT13003EK-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DXT13003EK-13 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 DXT13003EK-13?
For technical support, including DXT13003EK-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DXT13003EK-13 requirements.
6.How does Aetrix verify that DXT13003EK-13 is sourced from the original manufacturer or authorized distributors?
All DXT13003EK-13 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 DXT13003EK-13 meets industry standards.
7.What is the process for return or replacement of DXT13003EK-13?
All DXT13003EK-13 units undergo pre-shipment inspection (PSI). If there is an issue with DXT13003EK-13, 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 DXT13003EK-13 part is unused and in its original packaging.
Return procedure for DXT13003EK-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DXT13003EK-13 Tags
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