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Vishay Siliconix IRLZ34L
- Part No.:
- IRLZ34L
- Manufacturer:
- Vishay Siliconix
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
IRLZ34L.pdf
- Description:
- MOSFET N-CH 60V 30A TO262-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,525
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Product details
Overview
IRLZ34L from Vishay Siliconix is a logic-level N-channel enhancement-mode power MOSFET in D2PAK (TO-263) package, rated for 60 V VDS, 30 A continuous drain current at TC = 25 °C, and 0.05 Ω RDS(on) at VGS = 5 V. It features fully avalanche-rated ruggedness, 175 °C maximum junction temperature, and fast switching with 35 nC total gate charge - optimized for high-efficiency DC-DC converters and motor drive half-bridges.
For engineers reviewing the IRLZ34L datasheet, IRLZ34L pinout, IRLZ34L application, or IRLZ34L equivalent, this device is selected for low-voltage, high-current switching where logic-level gate drive compatibility, low conduction loss, and robust unclamped inductive switching capability are critical design requirements.
Technical Context
This MOSFET employs Vishay's third-generation silicon process to achieve ultra-low on-resistance per die area while maintaining fast switching speed and thermal stability up to 175 °C. Its gate threshold voltage range of 1.0–2.0 V enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting circuitry.
The device integrates a fast-recovery body diode with trr = 120–180 ns and Qrr = 700–1300 nC, supporting synchronous rectification and hard-switched topologies. Its D2PAK package delivers RthJC = 1.7 °C/W and supports up to 88 W power dissipation at TC = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 60 V - supports 48 V bus systems with 20 % safety margin against transients |
| RDS(on) @ VGS = 5 V | 0.05 Ω - enables <1.8 W conduction loss at 6 A continuous load |
| ID (continuous) | 30 A @ TC = 25 °C - suitable for high-current PCB-mounted power stages |
| Qg (total) | 35 nC - determines gate driver strength requirement for <100 ns switching transitions |
| EAS | 128 mJ - ensures reliable operation under unclamped inductive switching (e.g., relay/motor coil flyback) |
| TJ max | 175 °C - allows operation in sealed enclosures or high-ambient industrial environments |
| Body diode trr | 120–180 ns - reduces switching loss and EMI in freewheeling paths |
Pinout & Package
D2PAK (TO-263) surface-mount package with exposed drain pad for thermal and electrical connection; 3-pin configuration (G, D, S); standard JEDEC outline; recommended minimum PCB pad dimensions: 10.67 mm × 9.02 mm for drain tab.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G (Gate) | Control terminal | Accepts logic-level input (1–2 V threshold); requires <35 nC charge for full enhancement |
| D (Drain) | High-side power output | Connected to exposed copper tab - must be soldered to large thermal pad for RthJC = 1.7 °C/W performance |
| S (Source) | Power return / reference node | Provides common return path; body diode anode tied internally to source |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced at VGS = 4.5 V - eliminates need for gate driver ICs in 3.3 V/5 V MCU systems |
| Fully avalanche rated | Withstands 128 mJ single-pulse avalanche energy - protects against inductive kickback without external snubbers |
| Low RDS(on) × Qg figure-of-merit | 1.75 Ω·nC - balances conduction and switching losses for high-frequency SMPS designs |
| 175 °C junction rating | Enables derating-free operation up to +125 °C ambient with proper heatsinking - suitable for automotive under-hood modules |
| RoHS-compliant, halogen-free | Meets IPC-J-STD-609A Class 1 definition - supports lead-free reflow profiles and environmental compliance programs |
Applications
| Brushless DC Motor Driver | Industrial DC-DC Converter |
|---|---|
|
Use Scenario: Half-bridge leg in 24–48 V BLDC inverter driving fans, pumps, or compressors. IC Role / Device Role / Timing Role: Low-side switching element with fast turn-off to minimize shoot-through risk during PWM commutation. Use Value: 0.05 Ω RDS(on) reduces I²R loss by >30 % vs. legacy 0.1 Ω devices at 15 A, improving thermal margin in compact enclosures. |
Use Scenario: Primary-side synchronous rectifier in isolated 48 V-to-12 V telecom DC-DC module. IC Role / Device Role / Timing Role: High-current, low-VDS switch operating at 200–500 kHz with body-diode-assisted ZVS. Use Value: 120–180 ns body diode trr minimizes reverse recovery loss and associated ringing, enabling stable high-frequency operation. |
| LED Constant-Current Driver | Automotive Load Switch |
|
Use Scenario: High-power LED string dimming via PWM-controlled high-side or low-side switch. IC Role / Device Role / Timing Role: Current-handling switch modulated at 1–20 kHz to control luminance without visible flicker. Use Value: 30 A continuous rating supports multi-string configurations up to 100 W; 175 °C rating accommodates sealed headlamp thermal environments. |
Use Scenario: Smart high-side load switch protecting 12 V vehicle subsystems (e.g., infotainment, ADAS sensors). IC Role / Device Role / Timing Role: Controlled power delivery with overcurrent and thermal shutdown via integrated protection behavior. Use Value: Fully avalanche-rated structure withstands ISO 7637-2 pulse 5a (load dump) transients up to 60 V without failure. |
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 |
|---|---|---|---|
| IRLZ44N | RDS(on) = 0.028 Ω @ 5 V (lower), Qg = 71 nC (higher), same D2PAK package | Better conduction loss but slower switching; less suitable for >100 kHz SMPS | Select IRLZ44N when minimizing conduction loss dominates; choose IRLZ34L when gate drive strength or switching speed is constrained. |
| STP30NF20 | VDS = 200 V (higher), RDS(on) = 0.042 Ω @ 10 V, non-logic-level (VGS(th) = 2–4 V), TO-220 package | Requires gate driver for 3.3 V logic; higher voltage rating suits 100–150 V systems | Choose STP30NF20 only if 200 V rating is mandatory; IRLZ34L remains preferred for 48 V logic-driven systems due to lower drive complexity. |
Compared with IRLZ44N and STP30NF20, the IRLZ34L offers the optimal balance of logic-level drivability, moderate gate charge, and 60 V rating - making it uniquely suited for space-constrained, thermally demanding 24–48 V industrial and automotive power stages where gate driver integration is limited.
Availability
IRLZ34L is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC-DC converters, and automotive lighting systems requiring stable component supply across extended production lifecycles.
Supply support for IRLZ34L 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
Vishay Siliconix is a global leader in discrete semiconductors, specializing in high-reliability MOSFETs, diodes, and optoelectronics for power, signal, and sensing applications.
The IRLZ34L belongs to Vishay's logic-level Power MOSFET product line, engineered specifically for efficient, low-voltage switching in battery-powered, automotive, and industrial control systems where gate drive simplicity and thermal resilience are essential.
FAQ
What is the maximum continuous drain current rating for the IRLZ34L at 100 °C case temperature?
The IRLZ34L supports 21 A continuous drain current at TC = 100 °C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal resistance limits and ensures safe operation within the 175 °C maximum junction temperature. Designers must verify PCB copper area and airflow to maintain TC ≤ 100 °C under full load. The IRLZ34L datasheet provides derating curves in Figure 9 for precise thermal modeling.
Does the IRLZ34L have a built-in body diode, and what are its key parameters?
Yes, the IRLZ34L integrates a monolithic body diode with typical forward voltage VSD = 1.6 V at IS = 30 A and TJ = 25 °C. Its reverse recovery time trr is 120–180 ns, and reverse recovery charge Qrr is 700–1300 nC. These values are measured under standardized conditions (IF = 30 A, di/dt = 100 A/μs) and directly impact switching loss in freewheeling and synchronous rectification applications using the IRLZ34L.
Is the IRLZ34L RoHS-compliant and halogen-free?
Yes, the IRLZ34L is RoHS-compliant and halogen-free per Vishay's material categorization standard (document 99912). It meets IPC-J-STD-609A Class 1 requirements and is qualified for lead-free reflow soldering. The "L" suffix in IRLZ34L denotes lead (Pb)-free and halogen-free construction, distinguishing it from legacy Pb-bearing variants like IRLZ34SPbF.
What is the gate threshold voltage range for the IRLZ34L, and how does it affect microcontroller interfacing?
The IRLZ34L has a gate threshold voltage VGS(th) range of 1.0–2.0 V at ID = 250 μA, confirming true logic-level operation. This allows direct interface with 3.3 V and 5 V microcontrollers without external level shifters. At VGS = 4.5 V, the IRLZ34L achieves full enhancement with RDS(on) ≤ 0.07 Ω, ensuring low-loss switching in real-world IRLZ34L-based control circuits.
Can the IRLZ34L replace the IRLZ34S in existing designs?
Yes - the IRLZ34L and IRLZ34S share identical electrical specifications, thermal ratings, pinout, and D2PAK package dimensions per Vishay's documentation (S20-0683-Rev. F). The "L" suffix indicates lead-free/halogen-free construction, while "S" denotes legacy Pb-bearing versions. No PCB layout or firmware changes are required when substituting IRLZ34L for IRLZ34S in compliant manufacturing processes.
IRLZ34L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- 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):
- 60 V
- Current - Continuous Drain (Id) @ 25°C:
- 30A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4V, 5V
- Rds On (Max) @ Id, Vgs:
- 50mOhm @ 18A, 5V
- Vgs(th) (Max) @ Id:
- 2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 35 nC @ 5 V
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1600 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 3.7W (Ta), 88W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-262-3
IRLZ34L FAQ
1.How can I place an order for IRLZ34L through Aetrix?
Please submit a Request for Quotation (RFQ) for IRLZ34L 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 IRLZ34L reliable?
The price and inventory of IRLZ34L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLZ34L is usually 5 days.
3.What payment methods are accepted for IRLZ34L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLZ34L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRLZ34L?
IRLZ34L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRLZ34L 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 IRLZ34L?
For technical support, including IRLZ34L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLZ34L requirements.
6.How does Aetrix verify that IRLZ34L is sourced from the original manufacturer or authorized distributors?
All IRLZ34L 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 IRLZ34L meets industry standards.
7.What is the process for return or replacement of IRLZ34L?
All IRLZ34L units undergo pre-shipment inspection (PSI). If there is an issue with IRLZ34L, 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 IRLZ34L part is unused and in its original packaging.
Return procedure for IRLZ34L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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