My Inquiry
My Account
Alpha & Omega Semiconductor Inc. AOK20B120D1
- Part No.:
- AOK20B120D1
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- Single IGBTs
- Package:
- TO-247-3
- Datasheet:
-
AOK20B120D1.pdf
- Description:
- IGBT 1200V 20A TO-247
- Quantity:
- Payment:
- Shipping:
Inventory:7,940
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AOK20B120D1 from Alpha & Omega Semiconductor is a 1200V, 20A trench-gate field-stop IGBT with integrated fast-recovery anti-parallel diode in TO-247 package. It delivers 1.54V VCE(sat) at TJ=25°C and 20A, features 152ns tD(off) and 118ns tf under standard test conditions, and targets high-efficiency soft-switching power stages in induction cooking appliances.
For engineers reviewing the AOK20B120D1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 1200V blocking rating, low conduction loss at 100°C case temperature, fast turn-off energy (0.94mJ at TJ=25°C), thermal resistance RθJC = 0.44°C/W for the IGBT die, and compatibility with gate drive voltages up to ±30V.
Technical Context
The AOK20B120D1 employs Alpha's αIGBT technology with field-stop trench structure to achieve optimized trade-offs between saturation voltage and switching speed. Its 1.82V VCE(sat) at TJ=125°C and 1.97V at 175°C ensures stable conduction across industrial temperature ranges, while its 32pF Cres and 1900pF Cies support predictable gate drive design.
Designed for hard- and soft-switching topologies, the device integrates a co-packaged diode with 1.33V VF at 20A and 25°C, 1.38V at 175°C, and exhibits minimal reverse recovery charge (Qrr not specified but implied by smooth turn-off waveforms). Its 150nH parasitic inductance test condition confirms suitability for compact high-frequency resonant converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCE Rating | 1200V - supports DC bus operation up to 850V in 3-phase rectified systems with 1.4× safety margin |
| IC Continuous (TC=100°C) | 20A - enables 2.4kW output in 100kHz induction cooktops with forced-air cooling |
| VCE(sat) (25°C/20A) | 1.54V - reduces conduction loss to ~31W at full load, critical for thermal management |
| tD(off) + tf | 270ns total - allows >300kHz switching in ZVS/ZCS resonant inverters without excessive loss |
| RθJC (IGBT) | 0.44°C/W - enables 100W dissipation with ≤44°C junction-to-case rise, simplifying heatsink sizing |
| Eoff (25°C) | 0.94mJ - defines minimum dead-time and snubber requirements in half-bridge configurations |
| Qg | 67.5nC - determines gate driver peak current requirement (~4.5A for 15Ω, 15V drive) |
Pinout & Package
Package: TO-247 (3-pin, straight lead, isolated tab). Thermal pad electrically connected to collector (pin 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G (Gate) | Control input terminal | Receives 15V logic-level gate drive; ±30V absolute max rating prevents ESD damage during handling |
| C (Collector) | High-side power switch node | Connected to DC bus; tab is electrically tied to this pin-requires insulated mounting in PCB layout |
| E (Emitter) | Power return and reference node | Serves as common source for gate drive return and current sensing; low-inductance layout essential for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) at high TJ | 1.97V at 175°C ensures <5% efficiency drop in rice cooker duty cycles with ambient >70°C |
| Smooth turn-off waveform | Minimizes dv/dt-induced EMI in unshielded kitchen appliance enclosures, reducing filter component count |
| High surge current capability | 200A non-repetitive ICpulse withstands inrush during cold-start of induction coils |
| Integrated fast diode | Co-packaged diode with 1.33V VF at 20A eliminates discrete diode placement error and layout mismatch |
| High input capacitance | 1900pF Cies suppresses gate voltage spikes during high-di/dt commutation, improving system reliability |
Applications
| Induction Cooking Systems | Rice Cooker Inverter Stages |
|---|---|
Use Scenario: High-frequency (20–100kHz) resonant half-bridge driving spiral induction coils for precise pan temperature control. IC Role / Device Role / Timing Role: Main switching element in asymmetrical half-bridge topology; handles bidirectional current via integrated diode during ZVS transitions. Use Value: 1.54V VCE(sat) and 0.94mJ Eoff enable >93% inverter efficiency at 1.8kW, reducing heatsink mass by 35% vs. prior-generation IGBTs. |
Use Scenario: Compact 500–800W inverter powering ferromagnetic heating elements with variable frequency modulation. IC Role / Device Role / Timing Role: Low-duty-cycle switching device operating at 25–40kHz; leverages fast tf (118ns) to minimize dead-time losses during burst-mode cooking cycles. Use Value: 175°C-rated junction and 200A surge capability ensure robustness against steam-triggered thermal transients during lid-opening events. |
| Microwave Oven Magnetron Drivers | Soft-Switching SMPS Modules |
Use Scenario: High-voltage flyback or resonant converter supplying regulated 4kV DC to magnetron cathodes. IC Role / Device Role / Timing Role: Primary-side switch in quasi-resonant topology; integrated diode provides freewheeling path during off-time. Use Value: 1200V VCE rating accommodates reflected voltage spikes up to 1.1kV without snubber, simplifying transformer design. |
Use Scenario: 1–3kW telecom or industrial PSU using phase-shifted full-bridge with ZVS. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in high-VOUT outputs; used in active clamp forward variants. Use Value: Low Cres/Coss ratio (32pF/109pF) enables reliable ZVS across 20–95% load range, cutting switching loss by 22% vs. standard FS-IGBTs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IGBT switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS IXGN20N120B3 | Higher VCE(sat) (1.8V @ 25°C), slower tf (220ns), same 1200V/20A rating and TO-247 package | Less suitable for >50kHz soft-switching due to higher Eoff (1.4mJ); better for lower-frequency motor drives | Select when prioritizing ruggedness over efficiency in 15–30kHz fixed-frequency inverters |
| Infineon IKP20N120T | Lower Qg (45nC), higher Cres (50pF), 1.75V VCE(sat) at 25°C, TO-247-3L package | Requires tighter gate drive timing control; less tolerant of layout parasitics in high-dv/dt environments | Select when gate drive power budget is constrained and board space permits larger snubbers |
Compared with IXGN20N120B3 and IKP20N120T, the AOK20B120D1 offers the lowest combined conduction–switching loss product in soft-switching consumer appliances, verified by its 0.94mJ Eoff and 1.54V VCE(sat), making it optimal for thermally constrained, high-frequency induction loads where efficiency directly impacts UL certification margins.
Availability
AOK20B120D1 is available at Aetrix Electronics and suitable for induction cooking systems, rice cooker inverter stages, and microwave oven magnetron drivers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for consumer electronics production.
Supply support for AOK20B120D1 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
Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and power modules for consumer, computing, and industrial markets.
The AOK20B120D1 belongs to AOS's AlphaIGBT™ family, engineered specifically for high-efficiency, high-frequency resonant converters in kitchen appliances-emphasizing low VCE(sat), fast switching, and integrated diode reliability.
FAQ
What is the maximum continuous collector current rating for AOK20B120D1 at 100°C case temperature?
The AOK20B120D1 supports 20A continuous collector current at TC = 100°C, as specified in the Absolute Maximum Ratings table. This rating assumes proper heatsinking with RθJC = 0.44°C/W and accounts for thermal derating above 25°C ambient. At TC = 25°C, the device is rated for 40A continuous operation, but real-world designs must respect the 100°C limit for sustained reliability in enclosed appliances.
Does AOK20B120D1 include an integrated diode, and what are its key forward characteristics?
Yes, the AOK20B120D1 integrates a fast-recovery anti-parallel diode in the same TO-247 package. Its diode forward voltage is 1.33V at 20A and 25°C, rising to 1.38V at 175°C. The diode supports 40A continuous forward current at TC = 25°C and 80A pulsed current, enabling efficient freewheeling in half-bridge and resonant topologies without external diode placement errors.
What gate drive voltage range is recommended for reliable operation of AOK20B120D1?
AOK20B120D1 specifies a gate-emitter voltage range of ±30V absolute maximum, with recommended operating VGE of 15V for turn-on and –5V to –10V for active Miller clamping. The gate threshold voltage VGE(th) is 5.2V typical at 25°C, ensuring noise immunity in noisy kitchen environments. Driving below 12V risks incomplete turn-on and elevated conduction loss.
How does the thermal resistance of AOK20B120D1 impact heatsink selection for induction cooktop designs?
With RθJC = 0.44°C/W for the IGBT die and RθJC = 1.20°C/W for the integrated diode, the AOK20B120D1 demands low-thermal-resistance mounting. For 30W dissipation at 100°C case temperature, a heatsink with ≤1.5°C/W total RθJA (including interface material) is required to maintain TJ < 150°C. This directly influences mechanical design-smaller aluminum extrusions suffice compared to legacy 1.2V-sat devices.
Can AOK20B120D1 be used in hard-switching applications, or is it limited to soft-switching topologies?
AOK20B120D1 is qualified for both hard- and soft-switching applications, but its design optimizations-low Eoff, smooth current fall, and low Cres-deliver greatest benefit in ZVS/ZCS resonant circuits like those in induction cookers. In hard-switching, its 1.54V VCE(sat) remains advantageous, though designers must account for higher voltage overshoot and select appropriate snubbers per layout parasitics.
AOK20B120D1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Series:
- Alpha IGBT™
- Package/Case:
- TO-247-3
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- IGBT Type:
- -
- Voltage - Collector Emitter Breakdown (Max):
- 1200 V
- Current - Collector (Ic) (Max):
- 40 A
- Current - Collector Pulsed (Icm):
- 80 A
- Vce(on) (Max) @ Vge, Ic:
- 1.8V @ 15V, 20A
- Power - Max:
- 340 W
- Switching Energy:
- 940µJ (off)
- Input Type:
- Standard
- Gate Charge:
- 67.5 nC
- Td (on/off) @ 25°C:
- -/152ns
- Test Condition:
- 600V, 20A, 15Ohm, 15V
- Reverse Recovery Time (trr):
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247
AOK20B120D1 FAQ
1.How can I place an order for AOK20B120D1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOK20B120D1 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 AOK20B120D1 reliable?
The price and inventory of AOK20B120D1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOK20B120D1 is usually 5 days.
3.What payment methods are accepted for AOK20B120D1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOK20B120D1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOK20B120D1?
AOK20B120D1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOK20B120D1 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 AOK20B120D1?
For technical support, including AOK20B120D1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOK20B120D1 requirements.
6.How does Aetrix verify that AOK20B120D1 is sourced from the original manufacturer or authorized distributors?
All AOK20B120D1 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 AOK20B120D1 meets industry standards.
7.What is the process for return or replacement of AOK20B120D1?
All AOK20B120D1 units undergo pre-shipment inspection (PSI). If there is an issue with AOK20B120D1, 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 AOK20B120D1 part is unused and in its original packaging.
Return procedure for AOK20B120D1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOK20B120D1 Tags
;;2.jpg)
-
STGD3NB60SDT4
STMicroelectronics
-
HGTD1N120BNS9A
onsemi
-
STGF7NB60SL
STMicroelectronics
-
FGD5T120SH
onsemi
-
STGB3NC120HDT4
STMicroelectronics
-
IKP20N60TXKSA1
Infineon Technologies
-
STGW30H60DFB
STMicroelectronics
-
STGB30M65DF2
STMicroelectronics
-
IKB20N60TATMA1
Infineon Technologies
-
STGB30V60DF
STMicroelectronics
-
IKW30N60DTPXKSA1
Infineon Technologies
-
ISL9V3040P3
onsemi
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
