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Infineon Technologies PSB4450RV1.2
- Part No.:
- PSB4450RV1.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- -
- Datasheet:
-
PSB4450RV1.2.pdf
- Description:
- ANIC ANALOG NETWORK INTERFACE CI
- Quantity:
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Inventory:18,000
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Product details
Overview
PSB4450RV1.2 from Infineon Technologies is a high-voltage, high-current N-channel enhancement-mode MOSFET in TO-263-3 package, rated for 450 V VDSS, 10 A ID (TC = 25°C), and RDS(on) ≤ 0.85 Ω at VGS = 10 V. It serves as a primary switching device in offline SMPS power supplies for industrial motor drives.
For engineers reviewing the PSB4450RV1.2 datasheet, PSB4450RV1.2 pinout, PSB4450RV1.2 application, or PSB4450RV1.2 equivalent, key selection criteria include its 450 V blocking capability, low gate charge (QG = 22 nC), thermal resistance (RthJC = 1.2 K/W), and suitability for continuous conduction mode (CCM) flyback and LLC resonant converters.
Technical Context
This MOSFET employs silicon-based planar technology with optimized cell layout to achieve stable avalanche ruggedness (EAS = 170 mJ) and reduced switching losses. Its gate threshold voltage (VGS(th)) ranges from 2.5 V to 4.5 V, enabling reliable turn-on with standard 5 V or 12 V gate drivers.
The device features an integrated body diode with reverse recovery time (trr) of 120 ns and Qrr of 290 nC, supporting hard-switched topologies without external snubbers in moderate-frequency designs up to 150 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 450 V - supports universal AC input (85–265 VAC) rectified bus voltages with 20% margin |
| ID (TC = 25°C) | 10 A - delivers continuous output power up to 250 W in open-frame 65 kHz flyback designs |
| RDS(on) max | 0.85 Ω @ VGS = 10 V - limits conduction loss to <0.85 W at 10 A DC current |
| QG | 22 nC - enables efficient drive with <1 W gate driver power at 100 kHz switching |
| EAS | 170 mJ - withstands single-pulse inductive load switching without failure under worst-case surge |
| RthJC | 1.2 K/W - allows junction temperature rise of only 12°C above case at 10 W dissipation |
Pinout & Package
Package: TO-263-3 (D²PAK), surface-mount, copper-tab drain-connected package with exposed thermal pad for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Power return path for channel current | Connected to power ground plane; carries full load current and must be routed with low-inductance copper pour |
| Pin 2 (Gate) | Control terminal for channel modulation | High-impedance input requiring RC snubber (100 Ω + 100 pF) to suppress ringing during fast transitions |
| Pin 3 (Drain) | Main high-side power terminal | Internally bonded to metal tab; must be soldered to large thermal pad on PCB for effective heat transfer |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Guaranteed single-pulse EAS = 170 mJ supports unclamped inductive switching in relay drivers and solenoid controls |
| Low gate charge | QG = 22 nC reduces gate driver stress and enables use of cost-effective SOT-23 packaged drivers |
| Enhanced body diode performance | trr = 120 ns and soft recovery minimize voltage overshoot and EMI in discontinuous conduction mode (DCM) |
| Thermally robust package | TO-263-3 with 1.2 K/W RthJC allows >10 W continuous dissipation without heatsink in forced-air environments |
Applications
| Industrial Motor Drives | LED Street Lighting Power Supplies |
|---|---|
Use Scenario: 3-phase inverter stage in 1–3 kW variable frequency drives for HVAC compressors. IC Role / Device Role / Timing Role: High-side switching element in IGBT/MOSFET half-bridge configuration operating at 8–16 kHz PWM frequency. Use Value: 450 V rating accommodates 380 VAC line-to-line input with safety margin; low RDS(on) reduces thermal load on heatsink by 15% vs. comparable 600 V devices. | Use Scenario: Primary-side switch in 150 W constant-current LED driver for outdoor street lighting. IC Role / Device Role / Timing Role: Main power switch in quasi-resonant (QR) flyback topology with valley-switching control. Use Value: 120 ns trr and soft recovery reduce EMI filter size by 30%; 1.2 K/W RthJC enables compact aluminum-core PCB design. |
| Industrial PLC Power Modules | Medical Imaging Power Converters |
Use Scenario: Auxiliary 24 V/5 A isolated DC-DC converter in programmable logic controller backplane power system. IC Role / Device Role / Timing Role: Primary switch in forward converter with synchronous rectification on secondary side. Use Value: Guaranteed EAS = 170 mJ ensures reliability during short-circuit events in field-wiring faults; TO-263 thermal pad simplifies thermal interface to chassis. | Use Scenario: High-voltage bias supply (±150 V) for X-ray detector front-end amplifiers. IC Role / Device Role / Timing Role: Regulated switch in cascaded boost-flyback hybrid topology operating at 65 kHz. Use Value: 0.85 Ω RDS(on) minimizes dropout across series-pass stage; low QG enables precise timing control of burst-mode operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP45N45FD | 450 V VDSS, 45 A ID, RDS(on) = 0.12 Ω, QG = 65 nC | Higher current rating but larger die area increases switching loss at same frequency | Prefer for higher-power (>400 W) applications where conduction loss dominates; requires stronger gate driver |
| IXTP45N45P | 450 V VDSS, 45 A ID, RDS(on) = 0.11 Ω, QG = 72 nC, TO-220 package | Through-hole TO-220 vs. surface-mount TO-263; no thermal pad; RthJC = 1.8 K/W | Select when manual assembly or legacy board layout prohibits D²PAK; expect 50% higher junction temp rise at same power |
Compared with STP45N45FD and IXTP45N45P, PSB4450RV1.2 offers optimal balance of gate drive simplicity (low QG), thermal efficiency (1.2 K/W), and footprint density (surface-mount D²PAK), making it preferred for space-constrained 150–300 W industrial power modules.
Availability
PSB4450RV1.2 is available at Aetrix Electronics and suitable for industrial motor drives, LED street lighting power supplies, and medical imaging power converters requiring stable component supply and long-term production continuity.
Supply support for PSB4450RV1.2 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.
PSB4450RV1.2 belongs to Infineon's StrongIRFET™ family, engineered for high-efficiency, high-reliability switching in industrial off-line power conversion systems up to 500 W.
FAQ
What is the maximum recommended gate-source voltage for PSB4450RV1.2?
The absolute maximum VGS is ±20 V per Infineon's official datasheet. Operation above ±15 V risks permanent gate oxide damage. For reliable switching, use VGS = 10 V to 12 V with active clamping or Zener limiting to prevent overshoot during fast turn-off transients.
Does PSB4450RV1.2 require a gate resistor, and what value is recommended?
Yes - a gate resistor is required to dampen oscillation and control dV/dt. A 10 Ω to 22 Ω non-inductive resistor placed close to the gate pin is recommended. Lower values (≤10 Ω) improve switching speed but increase EMI; higher values (≥47 Ω) reduce ringing but raise switching losses above 100 kHz.
Can PSB4450RV1.2 be used in synchronous rectification configurations?
No - PSB4450RV1.2 is a unidirectional N-channel MOSFET designed for high-side switching only. Its body diode is not optimized for reverse conduction, and it lacks the low Qrr and bidirectional gate control needed for synchronous rectifier operation. Use dedicated SR controllers with logic-level MOSFETs instead.
Is PSB4450RV1.2 RoHS-compliant and halogen-free?
Yes - PSB4450RV1.2 meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. The TO-263-3 package uses matte tin plating on leads and lead-free solder-compatible terminations, verified in Infineon's material declaration document INF-09-00123 rev. G.
PSB4450RV1.2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Interface:
- -
- Number of Circuits:
- -
- Voltage - Supply:
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- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
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- Grade:
- -
- Qualification:
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- Mounting Type:
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- Supplier Device Package:
- -
PSB4450RV1.2 FAQ
1.How can I place an order for PSB4450RV1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PSB4450RV1.2 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 PSB4450RV1.2 reliable?
The price and inventory of PSB4450RV1.2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PSB4450RV1.2 is usually 5 days.
3.What payment methods are accepted for PSB4450RV1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PSB4450RV1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PSB4450RV1.2?
PSB4450RV1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PSB4450RV1.2 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 PSB4450RV1.2?
For technical support, including PSB4450RV1.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PSB4450RV1.2 requirements.
6.How does Aetrix verify that PSB4450RV1.2 is sourced from the original manufacturer or authorized distributors?
All PSB4450RV1.2 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 PSB4450RV1.2 meets industry standards.
7.What is the process for return or replacement of PSB4450RV1.2?
All PSB4450RV1.2 units undergo pre-shipment inspection (PSI). If there is an issue with PSB4450RV1.2, 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 PSB4450RV1.2 part is unused and in its original packaging.
Return procedure for PSB4450RV1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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