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Renesas 2SK3434-Z-AZ
- Part No.:
- 2SK3434-Z-AZ
- Manufacturer:
- Renesas
- Category:
- FETs, MOSFETs
- Package:
- -
- Datasheet:
-
2SK3434-Z-AZ.pdf
- Description:
- MOSFET N-CH
- Quantity:
- Payment:
- Shipping:
Inventory:1,516
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Product details
Overview
2SK3434-Z-AZ from Renesas Electronics is an N-channel power MOSFET designed for high-current DC-DC converter primary-side switching, motor drive half-bridges, and industrial SMPS applications. It delivers RDS(on) = 20 mΩ max at VGS = 10 V / ID = 24 A, supports ±120 A pulsed drain current, and features built-in gate protection diode with 78 mJ single avalanche energy rating.
For engineers reviewing the 2SK3434-Z-AZ datasheet, 2SK3434-Z-AZ pinout, 2SK3434-Z-AZ application, or 2SK3434-Z-AZ equivalent, key selection criteria include its TO-220SMD package thermal performance (Rth(ch-C) = 2.23°C/W), low Ciss = 2100 pF typical, and robust 60 V VDSS rating suitable for 48 V bus systems.
Technical Context
This device operates as a voltage-controlled unidirectional switch in hard-switched topologies. Its gate threshold voltage VGS(off) = 1.5–2.5 V enables reliable turn-on with standard 5 V or 10 V logic-level drivers, while the 40 nC total gate charge (QG) balances switching speed and drive loss.
The integrated body diode exhibits trr = 43 ns and Qrr = 61 nC under IF = 48 A, supporting synchronous rectification in buck converters and enabling controlled freewheeling in H-bridge motor control without external diode addition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 60 V - Supports 48 V nominal input rails with 20 % margin against transients |
| RDS(on)1 | 20 mΩ max at VGS = 10 V / ID = 24 A - Enables <1 W conduction loss at 24 A DC |
| ID(DC) | ±48 A at TC = 25°C - Rated for continuous high-current operation with heatsink |
| EAS | 78 mJ - Withstands single inductive switching events up to 28 A avalanche current |
| Ciss | 2100 pF typ. - Low input capacitance reduces gate drive power and improves dV/dt immunity |
| tr/tf | 400 ns / 160 ns - Fast edge rates support >100 kHz switching frequencies in hard-switched converters |
| QG | 40 nC - Matches standard gate drivers (e.g., IR2110, UCC27531) without requiring boost stages |
Pinout & Package
2SK3434-Z-AZ uses the TO-220SMD (MP-25Z) surface-mount variant of the TO-220AB outline, featuring isolated drain tab (pin 4) for PCB thermal relief and mechanical mounting. The package is lead-free and RoHS-compliant per Renesas specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control electrode | Receives gate drive signal; requires ESD protection circuitry due to integrated gate-source diode |
| 2 (Drain) | Main current path output | Connected to high-side switching node; electrically tied to metal tab (pin 4) for thermal conduction |
| 3 (Source) | Main current path return | Serves as reference for gate drive; must be routed with low-inductance layout to minimize ringing |
| 4 (Fin/Drain) | Thermal and electrical drain connection | Exposed metal tab provides primary heat dissipation path; must be soldered to copper pour or heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Super low RDS(on) | 20 mΩ max at 10 V drive enables high-efficiency power stages in 48 V telecom and server PSUs |
| Built-in gate protection diode | ESD-rated structure reduces need for external TVS on gate line-still requires external clamping for >20 V transients |
| Low Ciss and Crss | 2100 pF / 170 pF values minimize Miller effect, improving noise immunity and reducing gate oscillation risk |
| High avalanche ruggedness | 78 mJ single-pulse rating allows safe operation in inductive load switching without snubber circuits |
| Body diode with fast recovery | 43 ns trr and 61 nC Qrr support efficient freewheeling in motor drives and synchronous rectifiers |
Applications
| Industrial Motor Drive | Server PSU Primary Switch |
|---|---|
|
Use Scenario: Half-bridge inverter driving 3-phase BLDC motor in HVAC compressors. IC Role / Device Role / Timing Role: High-side N-channel switch in totem-pole configuration, switched at 15–25 kHz. Use Value: Low RDS(on) minimizes I²R losses during 40 A peak phase current; avalanche rating handles back-EMF spikes. |
Use Scenario: Primary-side switch in 800 W LLC resonant converter for AI server power supply. IC Role / Device Role / Timing Role: Main switching element operating in ZVS region with 300 kHz fundamental frequency. Use Value: Low Ciss and fast tr/tf reduce switching loss and improve ZVS window margin at light loads. |
| DC-DC Converter for Telecom | EV Onboard Charger Stage |
|
Use Scenario: Step-down converter converting 54 V battery input to 12 V for vehicle infotainment. IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side synchronous buck stage. Use Value: Integrated body diode with 43 ns trr eliminates need for discrete Schottky, reducing BOM count and footprint. |
Use Scenario: Isolated DC-DC stage in bidirectional OBC converting 400 V battery to 48 V auxiliary rail. IC Role / Device Role / Timing Role: High-side switch in active clamp forward topology, handling 200 kHz switching. Use Value: 60 V VDSS and 78 mJ EAS ensure reliability during clamp capacitor discharge transients. |
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 |
|---|---|---|---|
| STP60NF06 | RDS(on) = 14 mΩ @ 10 V but higher Ciss = 2900 pF; TO-220AB through-hole only | Lacks TO-220SMD footprint; requires rework for surface-mount assembly | Preferred where lower conduction loss outweighs layout flexibility and thermal resistance penalty |
| IXTP50N065T | Trench gate design yields QG = 32 nC and tr = 25 ns, but RDS(on) = 12.5 mΩ @ 10 V | Higher dV/dt rating (65 V) and improved SOA, but no built-in gate protection diode | Chosen when faster switching and extended voltage margin justify added external ESD protection |
Compared with STP60NF06 and IXTP50N065T, the 2SK3434-Z-AZ offers optimal balance of low gate charge, integrated ESD protection, and TO-220SMD thermal performance-making it especially suitable for space-constrained industrial power modules where layout simplicity and transient robustness are prioritized over marginal RDS(on) reduction.
Availability
2SK3434-Z-AZ is available at Aetrix Electronics and suitable for industrial motor drives, server power supplies, telecom DC-DC converters, and EV onboard charger stages requiring stable component supply and long-term production continuity.
Supply support for 2SK3434-Z-AZ 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.
The 2SK3434-Z-AZ belongs to Renesas' legacy power MOSFET product line engineered for high-reliability industrial switching applications, emphasizing ruggedness, thermal efficiency, and ease of integration in high-current power stages.
FAQ
What is the maximum continuous drain current rating for the 2SK3434-Z-AZ at case temperature 100°C?
The 2SK3434-Z-AZ has a DC drain current rating of ±48 A at TC = 25°C. At TC = 100°C, derating applies: using the PT vs. TC curve from the datasheet, total power dissipation drops to ~25 W, yielding a practical ID(DC) ≈ 35 A (calculated via √(PT/RDS(on))). This value assumes RDS(on) increases to ~25 mΩ at elevated temperature.
Does the 2SK3434-Z-AZ require external gate protection beyond its internal diode?
Yes-the internal gate-source diode provides basic ESD protection but is not rated for sustained overvoltage. Per Renesas documentation, an external Zener clamp (e.g., 15 V) between gate and source is required if VGS may exceed ±20 V during operation or layout transients. The 2SK3434-Z-AZ datasheet explicitly states "an additional protection circuit is externally required" under such conditions.
Can the 2SK3434-Z-AZ be used in synchronous rectification applications?
Yes-the 2SK3434-Z-AZ supports synchronous rectification via its body diode characteristics: trr = 43 ns and Qrr = 61 nC at IF = 48 A. Its low RDS(on) ensures minimal conduction loss when actively driven, and the fast reverse recovery enables efficient operation in buck and forward converters up to 300 kHz.
What is the thermal resistance from channel to case (Rth(ch-C)) for the 2SK3434-Z-AZ?
The 2SK3434-Z-AZ has Rth(ch-C) = 2.23°C/W, as confirmed in the Transient Thermal Resistance vs. Pulse Width graph (Fig. 4, page 4 of D14603EJ3V0DS). This value is measured under single-pulse conditions and applies to the TO-220SMD package with proper soldering to a 1-in² 2-oz copper pad.
Is the 2SK3434-Z-AZ RoHS compliant and lead-free?
Yes-the 2SK3434-Z-AZ is manufactured as a lead-free, RoHS-compliant device. Renesas confirms environmental compliance in its general notices and packaging specifications; the TO-220SMD (MP-25Z) package used for 2SK3434-Z-AZ meets JEDEC J-STD-020 moisture sensitivity level 1 and EU RoHS Directive 2011/65/EU requirements.
2SK3434-Z-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- FET Type:
- -
- Technology:
- -
- Drain to Source Voltage (Vdss):
- -
- Current - Continuous Drain (Id) @ 25°C:
- -
- Drive Voltage (Max Rds On, Min Rds On):
- -
- Rds On (Max) @ Id, Vgs:
- -
- Vgs(th) (Max) @ Id:
- -
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- -
- FET Feature:
- -
- Power Dissipation (Max):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
2SK3434-Z-AZ FAQ
1.How can I place an order for 2SK3434-Z-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SK3434-Z-AZ 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 2SK3434-Z-AZ reliable?
The price and inventory of 2SK3434-Z-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK3434-Z-AZ is usually 5 days.
3.What payment methods are accepted for 2SK3434-Z-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK3434-Z-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SK3434-Z-AZ?
2SK3434-Z-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SK3434-Z-AZ 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 2SK3434-Z-AZ?
For technical support, including 2SK3434-Z-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK3434-Z-AZ requirements.
6.How does Aetrix verify that 2SK3434-Z-AZ is sourced from the original manufacturer or authorized distributors?
All 2SK3434-Z-AZ 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 2SK3434-Z-AZ meets industry standards.
7.What is the process for return or replacement of 2SK3434-Z-AZ?
All 2SK3434-Z-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK3434-Z-AZ, 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 2SK3434-Z-AZ part is unused and in its original packaging.
Return procedure for 2SK3434-Z-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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