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Infineon Technologies IRF540ZLPBF
- Part No.:
- IRF540ZLPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
IRF540ZLPBF.pdf
- Description:
- MOSFET N-CH 100V 36A TO262
- Quantity:
- Payment:
- Shipping:
Inventory:48
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Product details
Overview
IRF540ZLPBF from Infineon Technologies is a 100V, 36A N-channel enhancement-mode Power MOSFET in D²Pak (TO-263) package, featuring 26.5mΩ RDS(on) at VGS = 10V, 175°C maximum junction temperature, and rated for repetitive avalanche operation. It serves as a main switching device in DC-DC converters, motor drives, and power supplies where high current handling and thermal robustness are required.
For engineers reviewing the IRF540ZLPBF datasheet, IRF540ZLPBF pinout, IRF540ZLPBF application, or IRF540ZLPBF equivalent, key selection criteria include its 100V VDS, 26.5mΩ on-resistance, fast switching (tr = 51ns, tf = 39ns), body diode recovery (trr = 33–50ns), and D²Pak thermal performance (RθJC = 1.64°C/W).
Technical Context
This MOSFET employs advanced HEXFET® silicon processing to minimize conduction loss per unit area while maintaining rugged unclamped inductive switching capability. Its gate charge profile (Qg = 42–63nC, Qgd = 15nC) supports efficient hard-switching up to several hundred kHz in synchronous buck or half-bridge topologies.
The integrated body diode exhibits VSD = 1.3V at 22A and reverse recovery charge Qrr = 41–62nC, enabling use in freewheeling paths without external Schottky supplementation in moderate-frequency applications. Thermal design leverages low RθJC and 175°C TJ(max) for sustained 36A continuous drain current at TC = 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100V - Withstands 80V DC bus with 25% margin; suitable for 48V industrial and 24V automotive auxiliary power rails. |
| RDS(on) | 26.5mΩ max at VGS = 10V - Delivers ≤0.34W conduction loss at 36A, reducing heatsink requirements in compact designs. |
| ID (continuous) | 36A at TC = 25°C - Supports high-current load switching in UPS inverters and BLDC motor phase legs. |
| tr/tf | 51ns/39ns - Enables <500kHz PWM operation with minimal switching loss when driven by ≥1A peak gate driver. |
| EAS | 83mJ (tested) - Sustains single-pulse inductive energy events (e.g., relay coil de-energization) without failure. |
| TJ(max) | 175°C - Allows full-rated current delivery under elevated ambient conditions (e.g., enclosed industrial enclosures). |
| Qgd | 15nC - Low Miller charge improves immunity to dv/dt-induced turn-on and simplifies gate drive stability. |
Pinout & Package
IRF540ZLPBF uses the surface-mount D²Pak (TO-263) package with exposed drain pad for enhanced thermal transfer. The three terminals are arranged in standard G-S-D order (left-to-right when viewed from top with marking side up and leads facing down).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Gate (G) | Control input | Receives 10V logic-level signal to fully enhance channel; threshold voltage 2.0–4.0V enables compatibility with 3.3V/5V microcontrollers via level-shifting. |
| Source (S) | Power return path | Serves as common reference for gate drive and load current return; internal source inductance LS = 7.5nH affects high-di/dt ringing. |
| Drain (D) | Main power output | Connected to high-side switch node or DC bus; exposed copper pad must be soldered to PCB thermal plane for RθJC = 1.64°C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) | 26.5mΩ at 10V gate drive reduces I²R losses by >30% versus legacy TO-220 equivalents at same current density. |
| 175°C junction rating | Enables full 36A current derating only above 100°C case temperature-critical for sealed fanless systems. |
| Repetitive avalanche rated | Validated for repeated unclamped inductive switching up to TJ(max), eliminating need for external snubbers in relay/motor control. |
| Fast body diode | trr = 33–50ns and Qrr = 41–62nC support synchronous rectification in non-isolated DC-DC converters. |
| Lead-free construction | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profile for Pb-free assembly. |
Applications
| Industrial Motor Drives | DC-DC Converters |
|---|---|
|
Use Scenario: Driving 24V/48V brushed DC motors in automated conveyor systems with PWM frequency up to 20kHz. IC Role / Device Role / Timing Role: High-side or low-side power switch controlling motor phase current; operates in hard-switched mode with gate drive synchronized to controller PWM. Use Value: 26.5mΩ RDS(on) limits conduction loss to <0.5W at 30A, enabling passive cooling and extending motor driver MTBF. |
Use Scenario: Primary-side switch in 12V-to-48V isolated forward converter delivering 15A output. IC Role / Device Role / Timing Role: Main switching transistor in primary power stage; handles 100V blocking and 36A peak current during duty cycle. Use Value: 83mJ EAS withstands leakage inductance spikes during MOSFET turn-off, eliminating clamp circuitry and saving board space. |
| Uninterruptible Power Supplies | LED Constant-Current Drivers |
|
Use Scenario: Inverter bridge switch in 1kVA online UPS converting 360V DC bus to 230V AC output. IC Role / Device Role / Timing Role: Half-bridge leg device operating at 16kHz with 50% duty cycle; conducts 36A RMS during overload conditions. Use Value: 175°C TJ(max) allows sustained 30A operation at 85°C ambient without forced air, improving system reliability. |
Use Scenario: Dimmable constant-current switch for 100W high-bay LED fixtures using analog/PWM dimming. IC Role / Device Role / Timing Role: Series-pass element regulating LED string current; switches at 1–5kHz to avoid audible noise. Use Value: Fast tr/tf (51ns/39ns) ensures clean current transitions during PWM dimming, minimizing LED flicker. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP100N10F7 | 100V, 100A, RDS(on) = 9.5mΩ, TO-220FP package, lower RθJA but no avalanche rating | Better conduction efficiency at >50A; unsuitable for unclamped inductive loads | Select when thermal budget permits larger heatsink and avalanche stress is absent. |
| IXTP110N10L2 | 100V, 110A, RDS(on) = 7.2mΩ, TO-220, logic-level gate (VGS(th) = 1–2.5V), no avalanche spec | Enables direct 3.3V MCU drive; lacks EAS validation and thermal robustness at 175°C | Prefer for low-voltage gate drive simplicity where inductive energy is clamped externally. |
Compared with STP100N10F7 and IXTP110N10L2, IRF540ZLPBF trades higher RDS(on) for guaranteed repetitive avalanche capability, D²Pak thermal performance, and proven 175°C operation-making it optimal for cost-sensitive, thermally constrained, and inductively stressed industrial power stages.
Availability
IRF540ZLPBF is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, DC-DC converters, and LED constant-current drivers requiring stable component supply across multi-year production cycles.
Supply support for IRF540ZLPBF 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, and industrial control ICs and discrete devices, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
IRF540ZLPBF belongs to Infineon's HEXFET® Power MOSFET product line, engineered for high-efficiency, high-reliability power conversion in industrial automation, renewable energy inverters, and embedded power systems.
FAQ
Is IRF540ZLPBF pin-compatible with IRF540N?
No. IRF540ZLPBF uses the D²Pak (TO-263) package with gull-wing leads and an exposed drain pad, whereas IRF540N is in TO-220AB with through-hole leads and no thermal pad. Footprint, soldering method, and thermal interface differ fundamentally-PCB layout and mechanical mounting are not interchangeable.
What gate resistor value is recommended for 100kHz switching?
A 10Ω series gate resistor is recommended for 100kHz operation with a 1A peak gate driver. This balances switching speed (tr/tf ≈ 50ns) against gate oscillation risk, given Qgd = 15nC and typical gate loop inductance of 20nH. Lower values increase EMI; higher values raise switching loss beyond 0.2W at 36A.
Does IRF540ZLPBF require a heatsink in free-air operation at 20A?
Yes. At 20A continuous with 26.5mΩ RDS(on), conduction loss is 10.6W. With RθJA ≈ 40°C/W (PCB mount), junction temperature rise exceeds 424°C-far above 175°C limit. A minimum 15cm² copper pour with 2oz copper and thermal vias is mandatory; forced air or extruded heatsink is required for sustained 20A operation.
Can IRF540ZLPBF replace IRFZ44N in a 48V battery disconnect application?
Yes, with qualification. Both are 55V-rated N-MOSFETs, but IRF540ZLPBF is 100V-rated and offers superior avalanche ruggedness (83mJ vs. 50mJ) and higher TJ(max) (175°C vs. 175°C). Verify gate drive compatibility (VGS(th) 2.0–4.0V matches IRFZ44N) and ensure D²Pak footprint accommodates the larger body and thermal pad.
IRF540ZLPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 36A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 26.5mOhm @ 22A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 63 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1770 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 92W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-262
IRF540ZLPBF FAQ
1.How can I place an order for IRF540ZLPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRF540ZLPBF 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 IRF540ZLPBF reliable?
The price and inventory of IRF540ZLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF540ZLPBF is usually 5 days.
3.What payment methods are accepted for IRF540ZLPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF540ZLPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRF540ZLPBF?
IRF540ZLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRF540ZLPBF 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 IRF540ZLPBF?
For technical support, including IRF540ZLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF540ZLPBF requirements.
6.How does Aetrix verify that IRF540ZLPBF is sourced from the original manufacturer or authorized distributors?
All IRF540ZLPBF 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 IRF540ZLPBF meets industry standards.
7.What is the process for return or replacement of IRF540ZLPBF?
All IRF540ZLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRF540ZLPBF, 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 IRF540ZLPBF part is unused and in its original packaging.
Return procedure for IRF540ZLPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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