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Diodes Incorporated APT13005SI-G1
- Part No.:
- APT13005SI-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
APT13005SI-G1.pdf
- Description:
- TRANS NPN 450V 3.2A TO-251
- Quantity:
- Payment:
- Shipping:
Inventory:2,665
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Product details
Overview
APT13005SI-G1 from Diodes Incorporated is a 450V NPN high-voltage power transistor in TO251 package, rated for 3.2A continuous collector current, 700V collector-emitter breakdown (BVCES), and 9V emitter-base breakdown. It serves as a switching element in low-power AC-DC SMPS for LED lighting and mobile device battery chargers.
For engineers reviewing the APT13005SI-G1 datasheet, APT13005SI-G1 pinout, APT13005SI-G1 application, or APT13005SI-G1 equivalent, key selection criteria include VCEO/VBCES ratings, hFE consistency at 1–2A, VCE(sat) under defined IB drive, thermal resistance (RθJC = 5.0°C/W), and TO251 lead-free, halogen-free compliance for automotive-adjacent industrial power designs.
Technical Context
This NPN bipolar junction transistor operates in linear or saturated switching mode with DC current gain (hFE) of 20–35 at IC = 1–2A and VCE = 5V. Its safe operating area supports 25W power dissipation at TC = +25°C in TO251, enabled by low RθJC of 5.0°C/W.
It features 8kV HBM ESD robustness and exhibits transition frequency fT ≥ 4MHz at IC = 0.5A, VCE = 10V - confirming suitability for medium-speed switching in offline flyback and buck-derived topologies below 100kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 450V - Maximum collector-emitter voltage before avalanche under open-base condition; defines primary blocking capability in SMPS primary-side switching. |
| BVCES | 700V - Collector-emitter breakdown with base shorted to emitter; determines clamp margin during inductive turn-off transients. |
| IC (cont.) | 3.2A - Continuous collector current rating at TC = +25°C; sets maximum average output power handling in TO251-packaged converters. |
| VCE(sat) | 0.3–1.0V - Saturation voltage across collector-emitter at IB-driven conditions (e.g., 0.2–0.75A); directly impacts conduction loss and thermal load. |
| RθJC | 5.0°C/W - Junction-to-case thermal resistance; enables direct heatsink mounting and predicts temperature rise under 25W dissipation. |
| hFE | 20–35 - DC current gain range at IC = 1–2A; determines required base drive current for reliable saturation in discrete BJT gate drivers or self-oscillating circuits. |
| fT | ≥4MHz - Transition frequency at IC = 0.5A, VCE = 10V; confirms usable bandwidth for <100kHz switching with adequate gain margin. |
Pinout & Package
APT13005SI-G1 uses the TO251 surface-mount package with three terminals: Emitter (E), Collector (C), and Base (B). The package features matte tin-plated leads, UL 94V-0 molded plastic body, and weighs approximately 340mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E (Emitter) | Current sink terminal | Connected to ground or low-side return path; carries full load current and defines reference for base drive. |
| C (Collector) | High-voltage switching node | Connected to primary winding of transformer or drain-side of snubber; must maintain >4mm creepage for 450V applications. |
| B (Base) | Control input | Receives current-limited drive signal; requires ~0.2–0.75A to ensure deep saturation and minimize VCE(sat) at full load. |
Key Features
| Feature | Design Value |
|---|---|
| High voltage blocking | 450V VCEO and 700V BVCES enable use in universal-input (85–265VAC) offline SMPS without external clamping. |
| Thermal performance | 5.0°C/W RθJC allows 25W dissipation with modest heatsinking - critical for compact LED driver PCBs with limited airflow. |
| Lead-free & green compliance | RoHS 3 compliant, halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) - meets automotive supply chain requirements for material declarations. |
| ESD robustness | 8kV HBM rating reduces risk of assembly-line damage and improves field reliability in unshielded consumer power adapters. |
Applications
| Battery Charger for Smartphones | LED Lighting Power Supply |
|---|---|
Use Scenario: Compact wall-wart charger converting 100–240VAC to 5VDC using flyback topology with discrete BJT control. IC Role / Device Role / Timing Role: Primary-side switching transistor regulating energy transfer via base-driven on/off cycles synchronized to secondary feedback. Use Value: 450V VCEO withstands reflected output voltage plus leakage spikes; 3.2A IC supports up to 15W output with margin. | Use Scenario: Constant-current LED driver for residential downlights operating from 120/230VAC mains. IC Role / Device Role / Timing Role: High-voltage switch in single-stage AC-DC converter with integrated rectification and regulation. Use Value: 700V BVCES provides headroom against surge events; TO251 footprint enables automated assembly and thermal pad attachment. |
| DVD/STB Power Supply | Low-Power Industrial Sensor PSU |
Use Scenario: Standby and main power supply in set-top box delivering +3.3V, +5V, and +12V rails. IC Role / Device Role / Timing Role: Main switch in auxiliary flyback circuit powering standby logic and enabling wake-up functionality. Use Value: Low VCE(sat) (≤0.6V at 2A) minimizes standby losses; RoHS/green compliance satisfies regional environmental mandates. | Use Scenario: Isolated 5V/100mA power module for analog sensor nodes in factory automation equipment. IC Role / Device Role / Timing Role: Discrete switching element in low-cost, low-component-count isolated DC-DC stage. Use Value: 150°C max junction temperature supports operation in enclosed enclosures; 4MHz fT ensures stable loop response with minimal phase lag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD13005G | VCEO = 400V (50V lower), RθJC = 5.5°C/W, TO252 package | Slightly reduced voltage margin; larger footprint but better thermal spreading on copper pour | Select when board layout allows TO252 and 400V blocking suffices for derated input conditions. |
| BU508AF | VCEO = 1500V, IC = 8A, TO3P package, slower switching (fT ≈ 1MHz) | Over-specified voltage rating; requires mechanical mounting and heatsink; unsuitable for space-constrained SMPS | Choose only for legacy 110V-only systems requiring extreme surge immunity and where size/cost are secondary. |
Compared with MJD13005G and BU508AF, APT13005SI-G1 delivers optimal balance of 450V blocking, TO251 manufacturability, and 5.0°C/W thermal resistance - making it preferred for cost-sensitive, volume-produced 10–15W AC-DC adapters where footprint and thermal performance are tightly coupled.
Availability
APT13005SI-G1 is available at Aetrix Electronics and suitable for LED lighting power supplies, smartphone battery chargers, and DVD/STB auxiliary power supplies requiring stable component supply despite its obsolete status through controlled legacy inventory channels.
Supply support for APT13005SI-G1 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
This part belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for cost-effective, reliable switching in low-to-mid power AC-DC conversion applications such as consumer adapters and LED drivers.
FAQ
Is APT13005SI-G1 still in active production?
No - Diodes Incorporated has officially discontinued APT13005S (including APT13005SI-G1) as noted in DS42598 Rev. 1–4 (February 2020). Aetrix Electronics maintains limited legacy stock with full traceability and offers engineering support for last-time buy and obsolescence mitigation planning.
What is the correct pinout orientation for APT13005SI-G1 in TO251?
When viewing the front face (marking side) with leads pointing downward, the left-to-right terminal order is Emitter (E), Collector (C), Base (B). This matches the official Diodes TO251 outline drawing and is confirmed by the "E C B" label in the datasheet's pin-out diagram.
Can APT13005SI-G1 replace APT13005SU-G1 in a TO126-based design?
No - although both share identical electrical specs, the TO251 (APT13005SI-G1) and TO126 (APT13005SU-G1) packages differ mechanically: TO251 is surface-mount with gull-wing leads; TO126 is through-hole with straight leads. PCB land patterns, thermal vias, and assembly processes are not interchangeable.
Does APT13005SI-G1 meet AEC-Q101 for automotive use?
No - the datasheet explicitly states that AEC-Q101 qualification applies only to parts "contacted separately" and manufactured in IATF 16949 facilities. APT13005SI-G1 is not AEC-Q101 qualified; it is intended for industrial and consumer power applications, not automotive ECUs or lighting modules requiring automotive-grade reliability validation.
APT13005SI-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 3.2 A
- Voltage - Collector Emitter Breakdown (Max):
- 450 V
- Vce Saturation (Max) @ Ib, Ic:
- 1V @ 750mA, 3A
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 8 @ 2A, 5V
- Power - Max:
- 25 W
- Frequency - Transition:
- 4MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-251
APT13005SI-G1 FAQ
1.How can I place an order for APT13005SI-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for APT13005SI-G1 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 APT13005SI-G1 reliable?
The price and inventory of APT13005SI-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APT13005SI-G1 is usually 5 days.
3.What payment methods are accepted for APT13005SI-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APT13005SI-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APT13005SI-G1?
APT13005SI-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APT13005SI-G1 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 APT13005SI-G1?
For technical support, including APT13005SI-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APT13005SI-G1 requirements.
6.How does Aetrix verify that APT13005SI-G1 is sourced from the original manufacturer or authorized distributors?
All APT13005SI-G1 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 APT13005SI-G1 meets industry standards.
7.What is the process for return or replacement of APT13005SI-G1?
All APT13005SI-G1 units undergo pre-shipment inspection (PSI). If there is an issue with APT13005SI-G1, 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 APT13005SI-G1 part is unused and in its original packaging.
Return procedure for APT13005SI-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APT13005SI-G1 Tags
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MMBT3906LT1G
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MMBT3904-7-F
Diodes Incorporated
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BC847B,215
Nexperia USA Inc.
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