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Renesas 2SK3634-AZ
- Part No.:
- 2SK3634-AZ
- Manufacturer:
- Renesas
- Category:
- FETs, MOSFETs
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
2SK3634-AZ.pdf
- Description:
- MOSFET N-CH 200V 6A TO251
- Quantity:
- Payment:
- Shipping:
Inventory:2,991
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Product details
Overview
2SK3634-AZ from Renesas Electronics is an N-channel power MOSFET designed for high-voltage switching applications, featuring VDSS = 200 V, RDS(on) = 0.60 Ω max at VGS = 10 V and ID = 3.0 A, built-in gate protection diode, and avalanche-rated operation. It is used in DC/DC converters where robustness under inductive switching stress and low conduction loss are required.
For engineers reviewing the 2SK3634-AZ datasheet, 2SK3634-AZ pinout, 2SK3634-AZ application, or 2SK3634-AZ equivalent, key selection criteria include its 200 V blocking capability, 6.0 A DC drain current rating, TO-252 (MP-3Z) surface-mount package, avalanche energy rating (EAS = 3.6 mJ), and gate charge (QG = 9 nC) for optimized hard-switching efficiency.
Technical Context
This device operates as a unidirectional high-side or low-side switch in non-synchronous buck, flyback, and motor drive topologies. Its gate threshold voltage (VGS(off) = 2.5–4.5 V) ensures reliable turn-on with standard 10 V gate drivers, while low Ciss (270 pF typ.) and fast switching times (td(on) = 4 ns, tf = 6 ns) support high-frequency operation up to several hundred kHz.
The integrated body diode exhibits VF(S-D) = 1.0 V at IF = 16 A and trr = 100 ns, enabling limited freewheeling use in low-duty-cycle applications. Avalanche capability is validated per test circuit conditions (VDD = 100 V, L = 100 μH, RG = 25 Ω), supporting single-pulse energy handling up to 3.6 mJ without failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 200 V - Enables use in 100–170 V DC bus systems with margin for voltage spikes. |
| RDS(on) | 0.60 Ω max at VGS = 10 V, ID = 3.0 A - Limits conduction loss to ≤5.4 W at 3 A, critical for thermal management in compact layouts. |
| ID(DC) | ±6.0 A at TC = 25°C - Supports continuous load currents up to 6 A with adequate heatsinking on PCB copper. |
| QG | 9 nC - Determines gate driver power requirement; enables efficient switching with low-current drivers (e.g., TC442x series). |
| EAS | 3.6 mJ - Specifies single-pulse avalanche energy tolerance, allowing safe operation during inductive turn-off transients without external snubbers. |
| Ciss | 270 pF typ. at VDS = 10 V - Reduces gate drive losses and improves dv/dt immunity in noisy environments. |
| Tch max | 150°C - Defines maximum junction temperature; requires thermal design ensuring case-to-ambient Rth(j-A) ≤ 125°C/W for 1.0 W ambient-rated dissipation. |
Pinout & Package
2SK3634-AZ is packaged in TO-252 (MP-3Z), a surface-mount power package with exposed drain pad for thermal enhancement. Pin 1 = Gate, Pin 2 = Drain, Pin 3 = Source.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control terminal | Receives voltage-controlled signal; requires ≤±30 V rating and external ESD protection due to integrated gate protection diode. |
| 2 (Drain) | High-voltage output node | Connected to switched high-side rail or inductive load; electrically tied to exposed metal tab for thermal conduction and electrical connection. |
| 3 (Source) | Reference node / return path | Serves as common reference for gate drive and current sensing; must be routed with low inductance to minimize switching oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Validated single-pulse EAS = 3.6 mJ supports ruggedness in inductive switching without external clamping. |
| Low gate charge (QG) | 9 nC enables fast, low-loss switching with minimal driver power consumption and reduced EMI generation. |
| Built-in gate protection diode | ESD protection between gate and source reduces risk of damage during handling and board assembly. |
| Low Ciss and Crss | 270 pF Ciss, 33 pF Crss improve noise immunity and reduce Miller-induced false turn-on in high-dv/dt environments. |
| TO-252 surface-mount package | Enables automated assembly and provides superior thermal performance vs. through-hole alternatives, with Rth(j-C) = 6.25°C/W. |
Applications
| DC/DC Converter Primary Switch | Industrial Motor Drive Half-Bridge |
|---|---|
|
Use Scenario: High-efficiency isolated flyback converter operating from 100–200 V DC input in industrial power supplies. IC Role / Device Role / Timing Role: Main switching element controlling energy transfer via primary winding; duty cycle modulated at 100–300 kHz. Use Value: 200 V VDSS and 3.6 mJ EAS tolerate reflected voltage spikes and leakage inductance energy without snubber circuits. |
Use Scenario: Low-cost 24–48 V BLDC motor control in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Low-side switch in half-bridge configuration driving phase current; commutated at ≤20 kHz. Use Value: 0.60 Ω RDS(on) minimizes I²R losses at 6 A peak current, reducing heatsink requirements in space-constrained enclosures. |
| LED Driver High-Side Switch | UPS Inverter Output Stage |
|
Use Scenario: Constant-current LED string driver for commercial signage using boost topology with 150 V output. IC Role / Device Role / Timing Role: High-side switch regulating current through inductor and LED load; PWM frequency ~500 kHz. Use Value: Fast 6 ns fall time and low QG ensure precise current regulation with minimal switching loss and thermal rise. |
Use Scenario: Line-interactive UPS output stage converting 350 V DC bus to 230 V AC via full-bridge inverter. IC Role / Device Role / Timing Role: One quadrant switch in full-bridge; operated in hard-switched mode with 50 Hz fundamental and 5–10 kHz carrier. Use Value: Avalanche rating allows safe interruption of inductive filter current during fault events, improving system reliability without added protection components. |
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 |
|---|---|---|---|
| STP20NM20 | VDSS = 200 V, RDS(on) = 0.16 Ω @ 10 V, but TO-220 package - higher Rth(j-A) and no surface-mount compatibility. | Requires through-hole assembly and larger heatsink; unsuitable for dense SMT designs where 2SK3634-AZ's TO-252 footprint is critical. | Select STP20NM20 only when lower RDS(on) justifies larger board area and thermal redesign. |
| IXTP26N20P | VDSS = 200 V, RDS(on) = 0.11 Ω @ 10 V, TO-220AB package, no specified avalanche rating in datasheet. | Lacks published EAS validation; not recommended for inductive loads without external clamping or derating. | Choose IXTP26N20P only in resistive or capacitive switching applications where avalanche stress is absent. |
Compared with STP20NM20 and IXTP26N20P, the 2SK3634-AZ offers verified avalanche ruggedness and SMT-compatible TO-252 packaging - making it uniquely suitable for compact, inductive-switching DC/DC converters where layout density and transient robustness are jointly constrained.
Availability
2SK3634-AZ is available at Aetrix Electronics and suitable for industrial power supplies, motor drives, and LED lighting systems requiring stable component supply and long-term manufacturability.
Supply support for 2SK3634-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 specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The 2SK3634-AZ belongs to Renesas' legacy high-voltage power MOSFET product line, engineered for rugged, cost-effective switching in industrial power conversion where reliability under repetitive stress is essential.
FAQ
What is the maximum continuous drain current rating for the 2SK3634-AZ?
The 2SK3634-AZ has a maximum continuous drain current (ID(DC)) of ±6.0 A at case temperature TC = 25°C. This rating assumes proper PCB copper area for heat dissipation; derating applies above 25°C case temperature per the datasheet's derating curve. At ambient temperature, the practical limit drops to 1.0 W total power dissipation, corresponding to ~1.3 A at RDS(on) = 0.60 Ω.
Does the 2SK3634-AZ have built-in avalanche capability, and how is it specified?
Yes, the 2SK3634-AZ is rated for single-pulse avalanche with IAS = 6.0 A and EAS = 3.6 mJ under defined test conditions (VDD = 100 V, L = 100 μH, RG = 25 Ω, starting Tch = 25°C). This rating is validated per JEDEC JESD24-1 and allows safe operation during inductive turn-off transients without external clamping components in properly designed circuits.
What package type does the 2SK3634-AZ use, and how are its pins arranged?
The 2SK3634-AZ uses the TO-252 (MP-3Z) surface-mount package. Pin 1 is Gate, Pin 2 is Drain (connected to the exposed metal tab), and Pin 3 is Source. The drain tab must be soldered to a large copper pour for thermal performance, and the gate pin requires low-inductance routing to prevent oscillation during switching.
Can the 2SK3634-AZ be used with gate drive voltages below 10 V?
Yes, the 2SK3634-AZ can operate with gate voltages down to its threshold range (VGS(off) = 2.5–4.5 V), but RDS(on) increases significantly below 10 V. At VGS = 5 V, typical RDS(on) rises to ~1.5 Ω - more than double the 0.60 Ω max at 10 V - increasing conduction loss and thermal stress. For optimal efficiency, 10 V gate drive is recommended.
Is there a body diode in the 2SK3634-AZ, and what are its key parameters?
Yes, the 2SK3634-AZ includes an intrinsic body diode between source and drain. Its forward voltage is VF(S-D) = 1.0 V at IF = 16 A and VGS = 0 V, with reverse recovery time trr = 100 ns and Qrr = 320 nC under specified test conditions (IF = 6 A, di/dt = 100 A/μs). This diode is not optimized for freewheeling; synchronous rectification is preferred in high-efficiency designs.
2SK3634-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 200 V
- Current - Continuous Drain (Id) @ 25°C:
- 6A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- -
- Rds On (Max) @ Id, Vgs:
- 600mOhm @ 3A, 10V
- Vgs(th) (Max) @ Id:
- 4.5V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 9 nC @ 10 V
- Vgs (Max):
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- 270 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-251
2SK3634-AZ FAQ
1.How can I place an order for 2SK3634-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SK3634-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 2SK3634-AZ reliable?
The price and inventory of 2SK3634-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK3634-AZ is usually 5 days.
3.What payment methods are accepted for 2SK3634-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK3634-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SK3634-AZ?
2SK3634-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SK3634-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 2SK3634-AZ?
For technical support, including 2SK3634-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK3634-AZ requirements.
6.How does Aetrix verify that 2SK3634-AZ is sourced from the original manufacturer or authorized distributors?
All 2SK3634-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 2SK3634-AZ meets industry standards.
7.What is the process for return or replacement of 2SK3634-AZ?
All 2SK3634-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK3634-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 2SK3634-AZ part is unused and in its original packaging.
Return procedure for 2SK3634-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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