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Infineon Technologies BUZ31 E3046
- Part No.:
- BUZ31 E3046
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
BUZ31 E3046.pdf
- Description:
- MOSFET N-CH 200V 14.5A TO262-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,856
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Product details
Overview
BUZ31 E3046 from Infineon Technologies is an N-channel enhancement-mode SIPMOS power MOSFET rated for 200 V drain-source voltage, 14.5 A continuous drain current at TC = 30 °C, and 0.2 Ω maximum RDS(on) at VGS = 5 V and ID = 9 A. It features avalanche-rated ruggedness, integrated body diode with 1.1–1.6 V forward voltage, and PG-TO-220-3 package for industrial motor control and DC-DC converter primary-side switching.
For engineers reviewing the BUZ31 E3046 datasheet, BUZ31 E3046 pinout, BUZ31 E3046 application, or BUZ31 E3046 equivalent, key selection criteria include its 200 V V(BR)DSS rating, 14.5 A ID capability, 0.2 Ω RDS(on), avalanche energy EAS = 200 mJ (single pulse), and thermal resistance RthJC ≤ 1.32 K/W - all critical for high-reliability power switching in constrained thermal environments.
Technical Context
This MOSFET operates in enhancement mode with a gate threshold voltage of 2.1–4.0 V and supports logic-level drive at VGS ≥ 5 V. Its transconductance gfs ranges from 5 to 12 S, enabling precise current control under varying load conditions.
The device integrates a fast-recovery body diode (trr = 170 ns, Qrr = 1.1 µC) and exhibits dynamic capacitances Ciss = 840–1120 pF, Coss = 180–270 pF, and Crss = 95–150 pF at VDS = 25 V, supporting efficient hard-switching up to ~100 kHz in non-resonant topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 200 V - withstands DC bus voltages up to 200 V in offline SMPS and motor drives |
| ID (TC=30°C) | 14.5 A - delivers sustained output current without derating below 30°C case temperature |
| RDS(on) max | 0.2 Ω @ VGS=5 V, ID=9 A - enables <1.8 W conduction loss at 9 A, reducing heatsink requirements |
| EAS | 200 mJ - absorbs single-pulse inductive energy during switching transitions without failure |
| RthJC | ≤1.32 K/W - allows direct thermal path from die to heatsink, supporting >70 W dissipation with modest heatsinking |
| trr / Qrr | 170 ns / 1.1 µC - limits reverse recovery losses and EMI in freewheeling operation |
| Ciss | 840–1120 pF - determines gate drive strength requirement and switching speed trade-off |
Pinout & Package
PG-TO-220-3 package with isolated tab (drain-connected), standard through-hole mounting, and Pb-free finish compliant with RoHS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Gate (G) | Control terminal; requires ≤±20 V drive; low input capacitance enables moderate-speed switching with 50 Ω gate resistor |
| Pin 2 | Drain (D) | High-side switch node; electrically connected to metal tab; must be insulated from heatsink unless referenced to same potential |
| Pin 3 | Source (S) | Power return path; defines reference for gate drive; carries full load current and body diode conduction |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Guaranteed single-pulse EAS = 200 mJ supports robustness against inductive kickback in relay/motor loads |
| Low RDS(on) at 5 V drive | 0.2 Ω max enables direct interface with microcontroller GPIO or low-voltage gate drivers without level-shifting |
| Integrated fast body diode | trr = 170 ns and Qrr = 1.1 µC reduce switching losses and voltage overshoot during commutation |
| Thermal performance | RthJC ≤ 1.32 K/W allows >70 W continuous dissipation with 25°C heatsink, simplifying thermal design |
| Pb-free and RoHS-compliant | PG-TO-220-3 package meets environmental compliance requirements for industrial and consumer end equipment |
Applications
| Industrial Motor Drives | Offline AC-DC Power Supplies |
|---|---|
Use Scenario: Driving 120–240 VAC-fed universal motors in HVAC blowers and pump controllers. IC Role / Device Role / Timing Role: High-side N-channel switch in half-bridge configuration, handling 10–15 A peak currents with 50–100 kHz PWM. Use Value: Avalanche rating prevents failure during motor stall or sudden load disconnection; low RDS(on) minimizes conduction loss at partial load. | Use Scenario: Primary-side switching transistor in 50–100 W flyback converters for industrial instrumentation power rails. IC Role / Device Role / Timing Role: Main power switch turning on/off 200 V DC bus at 65 kHz, synchronized with optocoupler feedback loop. Use Value: 200 V V(BR)DSS provides 20% margin over 170 V rectified peak; EAS rating handles leakage inductance spikes without snubber. |
| DC-DC Converters | Solenoid & Relay Drivers |
Use Scenario: High-efficiency 24–48 V input buck converter delivering 5–12 V/10 A to embedded control modules. IC Role / Device Role / Timing Role: Synchronous rectifier or high-side switch operating in continuous conduction mode at 200–500 kHz. Use Value: Low Coss and Crss minimize switching loss; integrated diode eliminates need for external Schottky in low-frequency synchronous rectification. | Use Scenario: Driving 24 V DC solenoids and contactors in PLC I/O modules with inductive load protection. IC Role / Device Role / Timing Role: Single-ended switch clamping inductive energy via avalanche breakdown during turn-off. Use Value: Guaranteed EAS = 200 mJ sustains repeated switching of 100 mH/1 A coils without external TVS; RDS(on) ensures <2 W loss at 10 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP20NM20 | 200 V VDS, 20 A ID, 0.12 Ω RDS(on) - lower on-resistance but higher gate charge (60 nC vs 45 nC) | Higher current capability suits larger solenoids; less suitable for thermally constrained PCB layouts due to higher Qg-driven switching loss | Select when higher continuous current and lower conduction loss outweigh gate drive complexity |
| IRF640NPBF | 200 V VDS, 18 A ID, 0.18 Ω RDS(on), no specified EAS rating - lacks guaranteed avalanche ruggedness | Acceptable in non-inductive or snubber-protected circuits; not recommended for motor/solenoid loads without external clamping | Select only where avalanche stress is absent and cost is prioritized over reliability margin |
Compared with STP20NM20 and IRF640NPBF, BUZ31 E3046 offers balanced trade-offs: verified avalanche robustness for inductive loads, moderate RDS(on) and gate charge, and proven thermal performance in TO-220 - making it optimal for cost-sensitive industrial controls requiring field reliability.
Availability
BUZ31 E3046 is available at Aetrix Electronics and suitable for industrial motor drives, offline AC-DC power supplies, DC-DC converters, and solenoid/relay drivers requiring stable component supply across extended production lifecycles.
Supply support for BUZ31 E3046 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.
BUZ31 E3046 belongs to the SIPMOS® family of high-voltage power MOSFETs designed specifically for rugged, high-current industrial switching applications demanding avalanche tolerance and thermal stability.
FAQ
Is BUZ31 E3046 suitable for 24 V automotive applications?
No - BUZ31 E3046 is rated for 200 V VDS and optimized for industrial mains-powered systems (e.g., 120/240 VAC inputs). Its gate threshold (2.1–4.0 V) and RDS(on) behavior are not characterized for automotive temperature range (−40 to +175 °C), nor does it meet AEC-Q101 qualification. Use Infineon's OptiMOS™ series for automotive-grade alternatives.
What is the maximum safe operating frequency for BUZ31 E3046?
Based on its dynamic parameters (td(on) ≤ 20 ns, tr ≤ 75 ns, td(off) ≤ 200 ns, tf ≤ 80 ns), BUZ31 E3046 supports reliable hard-switching up to 100–150 kHz in well-designed gate-drive circuits with RGS = 50 Ω. Above this, switching losses rise significantly due to Crss-dependent Miller plateau effects and limited gfs linearity.
Does BUZ31 E3046 require a gate resistor, and what value is recommended?
Yes - a gate resistor is required to dampen ringing and control dV/dt. For 5 V logic-level drive and 10–15 A load, a 22–47 Ω resistor is recommended. Lower values (e.g., 10 Ω) reduce switching time but increase EMI and gate driver stress; higher values (>100 Ω) slow turn-on and raise conduction loss during transition.
Can BUZ31 E3046 replace BUZ31 in legacy designs?
Yes - BUZ31 E3046 is a Pb-free, RoHS-compliant version of the original BUZ31, sharing identical electrical specifications, pinout, package (PG-TO-220-3), and thermal characteristics. No layout or firmware changes are needed; it is a direct drop-in replacement for new production and obsolescence mitigation.
BUZ31 E3046 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SIPMOS®
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 200 V
- Current - Continuous Drain (Id) @ 25°C:
- 14.5A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V
- Rds On (Max) @ Id, Vgs:
- 200mOhm @ 9A, 5V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1120 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 95W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-TO262-3
BUZ31 E3046 FAQ
1.How can I place an order for BUZ31 E3046 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUZ31 E3046 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 BUZ31 E3046 reliable?
The price and inventory of BUZ31 E3046 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUZ31 E3046 is usually 5 days.
3.What payment methods are accepted for BUZ31 E3046?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUZ31 E3046 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUZ31 E3046?
BUZ31 E3046 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUZ31 E3046 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 BUZ31 E3046?
For technical support, including BUZ31 E3046 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUZ31 E3046 requirements.
6.How does Aetrix verify that BUZ31 E3046 is sourced from the original manufacturer or authorized distributors?
All BUZ31 E3046 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 BUZ31 E3046 meets industry standards.
7.What is the process for return or replacement of BUZ31 E3046?
All BUZ31 E3046 units undergo pre-shipment inspection (PSI). If there is an issue with BUZ31 E3046, 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 BUZ31 E3046 part is unused and in its original packaging.
Return procedure for BUZ31 E3046:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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