Infineon Technologies IRLR3110ZPBF
- Part No.:
- IRLR3110ZPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
IRLR3110ZPBF.pdf
- Description:
- MOSFET N-CH 100V 42A DPAK
- Quantity:
- Payment:

- Shipping:

Inventory:3,211
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Product details
Overview
IRLR3110ZPBF from Infineon Technologies is a 100V, 63A N-channel enhancement-mode HEXFET® Power MOSFET in D-Pak (TO-252) package, featuring 14 mΩ RDS(on) at VGS = 10 V, 175°C maximum junction temperature, and rated for repetitive avalanche energy up to 250 mJ - designed for industrial DC-DC converters, motor drives, and high-current switching power supplies.
For engineers reviewing the IRLR3110ZPBF datasheet, IRLR3110ZPBF pinout, IRLR3110ZPBF application, or IRLR3110ZPBF equivalent, key selection criteria include its low conduction loss at 4.5V gate drive, fast switching (tr = 110 ns, tf = 48 ns), body diode recovery performance (Qrr = 42–63 nC), and robust thermal capability under sustained industrial load conditions.
Technical Context
This MOSFET employs advanced planar silicon processing to achieve ultra-low on-resistance per die area while maintaining high avalanche ruggedness. Its gate threshold voltage (1.0–2.5 V) enables reliable 4.5V logic-level drive, and the integral body diode supports synchronous rectification and freewheeling in hard-switched topologies.
The device's thermal design centers on low RθJC = 1.05°C/W and RθJA = 40°C/W (PCB mount), enabling high-power operation without forced air cooling. Repetitive avalanche capability is validated up to Tjmax, with EAR = 150 mJ at 1% duty cycle and Tj = 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 100 V - Withstands up to 100 V drain-source blocking voltage, suitable for 48V industrial bus and 24V/36V motor control systems. |
| RDS(on) @ VGS = 10 V | 14 mΩ max - Delivers ≤9.8 W conduction loss at 35 A continuous current, minimizing heatsink requirements. |
| ID @ TC = 25°C | 63 A - Silicon-limited continuous drain current enables high-current single-device solutions in compact layouts. |
| Qg | 48 nC max - Enables efficient gate driving with standard 1–2 A peak gate drivers; Miller charge Qgd = 15 nC reduces switching losses. |
| EAS | 250 mJ - Single-pulse avalanche energy rating ensures reliability during inductive turn-off transients in relay/motor driver circuits. |
| TJ max | 175°C - Extended junction temperature range supports operation in sealed enclosures or high-ambient environments without derating. |
| trr / Qrr | 34–51 ns / 42–63 nC - Fast, low-charge body diode recovery minimizes cross-conduction loss in half-bridge configurations. |
Pinout & Package
IRLR3110ZPBF is housed in a surface-mount D-Pak (TO-252) package with exposed drain pad for thermal enhancement and mechanical stability. The package features three leads: Gate (G), Drain (D), and Source (S), with Drain connected to the large copper tab for low-inductance, high-current routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G (Gate) | Control input terminal | Receives gate drive signal; threshold voltage 1.0–2.5 V enables direct microcontroller-level drive at 4.5 V. |
| D (Drain) | High-side power switch node | Connected to PCB copper pour for thermal dissipation; carries full load current and withstands 100 V blocking. |
| S (Source) | Reference and return path | Provides ground reference for gate drive; internal source inductance LS = 7.5 nH affects switching waveform integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) | 14 mΩ at 10 V gate drive - Reduces conduction loss by >35% vs. legacy 100V MOSFETs in same package, improving system efficiency at 20–50 A loads. |
| 175°C junction rating | Rated for continuous operation up to 175°C - Eliminates need for thermal derating in enclosed industrial cabinets operating at 85°C ambient. |
| Fast switching speed | tr = 110 ns, tf = 48 ns - Supports >200 kHz PWM frequencies in SMPS designs while limiting switching loss contribution. |
| Repetitive avalanche capability | EAR = 150 mJ at 1% duty cycle - Enables reliable unclamped inductive switching in solenoid and brushless DC motor gate drivers. |
| Low gate charge | Qg = 48 nC, Qgd = 15 nC - Minimizes gate driver power consumption and improves dv/dt immunity during hard commutation. |
Applications
| Industrial Motor Drives | DC-DC Converters |
|---|---|
Use Scenario: Half-bridge inverter stage for 24–48V BLDC motor control in factory automation actuators. IC Role / Device Role / Timing Role: High-side and low-side switching element handling 30–50 A peak phase current with 20 kHz PWM. Use Value: Low RDS(on) and fast body diode recovery reduce conduction and commutation losses, extending MOSFET lifetime under thermal cycling. |
Use Scenario: Primary-side synchronous rectifier in isolated 48V-to-12V telecom DC-DC module. IC Role / Device Role / Timing Role: Secondary-side power switch replacing Schottky diodes in forward or LLC topology. Use Value: 14 mΩ RDS(on) cuts conduction loss by ~60% vs. 40V Schottky, improving full-load efficiency from 92% to 94.5%. |
| Uninterruptible Power Supplies | Industrial Solenoid Drivers |
Use Scenario: Battery charging/discharge switching in 48V UPS systems with active current limiting. IC Role / Device Role / Timing Role: Bidirectional power switch managing charge current up to 60 A and reverse discharge paths. Use Value: 175°C rating and 250 mJ EAS ensure safe operation during battery short-circuit events without thermal runaway. |
Use Scenario: High-current pulse driver for hydraulic valve solenoids requiring 50 A for 100 ms bursts. IC Role / Device Role / Timing Role: Unclamped inductive switch with controlled avalanche energy absorption. Use Value: Validated repetitive avalanche performance eliminates need for external snubbers, reducing BOM count and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current 100V power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP110N10F7 | RDS(on) = 11.5 mΩ (lower), but TJmax = 150°C and no published repetitive avalanche rating. | Better conduction loss, but unsuitable for unclamped inductive loads without external protection. | Select when thermal margin is ample and avalanche stress is absent; avoid in solenoid/motor freewheeling. |
| IXTH110N10L2 | RDS(on) = 12.5 mΩ, Qg = 62 nC (higher), and TJmax = 175°C with full avalanche characterization. | Higher gate charge increases driver complexity; superior ruggedness for harsh industrial transients. | Prefer when system-level surge immunity and long-term reliability outweigh gate drive simplicity. |
Compared with STP110N10F7 and IXTH110N10L2, IRLR3110ZPBF offers balanced trade-offs: lower Qg than IXTH110N10L2 for simpler gate drive, and verified repetitive avalanche capability missing in STP110N10F7 - making it optimal for cost-sensitive industrial inverters requiring both efficiency and ruggedness.
Availability
IRLR3110ZPBF is available at Aetrix Electronics and suitable for industrial motor drives, DC-DC power conversion, and uninterruptible power supplies requiring stable component supply across multi-year production cycles.
Supply support for IRLR3110ZPBF 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 global semiconductor leader specializing in power management, automotive, and industrial control ICs and discrete devices, headquartered in Munich, Germany.
This part belongs to Infineon's HEXFET® Power MOSFET product line, engineered specifically for high-efficiency, high-reliability industrial switching applications where thermal resilience, avalanche tolerance, and low on-resistance are critical.
FAQ
Is IRLR3110ZPBF suitable for 4.5V gate drive in microcontroller-based designs?
Yes. With a gate threshold voltage of 1.0–2.5 V and guaranteed RDS(on) ≤16 mΩ at VGS = 4.5 V, the IRLR3110ZPBF is fully logic-level compatible. It delivers 32 A continuous current at 4.5 V drive, making it ideal for direct GPIO or low-voltage gate driver use in PLC I/O modules and embedded motor controllers.
What is the maximum recommended PCB copper area for thermal performance?
For optimal thermal performance, Infineon recommends ≥200 mm² of 2-oz copper connected to the drain pad via ≥6 thermal vias (0.3 mm diameter). This achieves the specified RθJA = 40°C/W. Smaller pads increase junction temperature by ~15°C per 50 mm² reduction, directly impacting safe operating area limits.
Does the body diode support synchronous rectification in buck converters?
Yes. The body diode has trr = 34–51 ns and Qrr = 42–63 nC at IF = 38 A, enabling effective synchronous rectification in 100–300 kHz buck converters. However, external Schottky diodes may still be preferred for <100 kHz operation due to lower forward voltage drop at light loads.
How does repetitive avalanche performance compare to single-pulse rating?
IRLR3110ZPBF is rated for 250 mJ single-pulse avalanche energy and 150 mJ repetitive avalanche energy at 1% duty cycle and Tj = 25°C. Repetitive capability drops linearly with increasing junction temperature - at Tj = 125°C, EAR falls to ~60 mJ - requiring careful thermal management in cyclic inductive switching applications.
IRLR3110ZPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 42A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 14mOhm @ 38A, 10V
- Vgs(th) (Max) @ Id:
- 2.5V @ 100µA
- Gate Charge (Qg) (Max) @ Vgs:
- 48 nC @ 4.5 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3980 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 140W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
IRLR3110ZPBF FAQ
1.How can I place an order for IRLR3110ZPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRLR3110ZPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of IRLR3110ZPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLR3110ZPBF is usually 5 days.
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Once your IRLR3110ZPBF 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 IRLR3110ZPBF?
For technical support, including IRLR3110ZPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLR3110ZPBF requirements.
6.How does Aetrix verify that IRLR3110ZPBF is sourced from the original manufacturer or authorized distributors?
All IRLR3110ZPBF 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 IRLR3110ZPBF meets industry standards.
7.What is the process for return or replacement of IRLR3110ZPBF?
All IRLR3110ZPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLR3110ZPBF, 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 IRLR3110ZPBF part is unused and in its original packaging.
Return procedure for IRLR3110ZPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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