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Renesas 2SK1637-E
- Part No.:
- 2SK1637-E
- Manufacturer:
- Renesas
- Category:
- FETs, MOSFETs
- Package:
- -
- Datasheet:
-
2SK1637-E.pdf
- Description:
- N-CHANNEL POWER MOSFET
- Quantity:
- Payment:
- Shipping:
Inventory:1,444
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Product details
Overview
2SK1637-E from Renesas Electronics is a silicon N-channel power MOSFET designed for high-speed switching in off-line and DC-DC converter applications. It features 600 V VDSS, 4 A continuous drain current, 2.4 Ω max RDS(on) at VGS = 10 V, 35 W channel dissipation, and TO-220FM package with isolated heatsink tab - enabling robust 600 V flyback and forward converter primary-side switching.
For engineers reviewing the 2SK1637-E datasheet, 2SK1637-E pinout, 2SK1637-E application, or 2SK1637-E equivalent, key selection criteria include its 600 V blocking capability, low gate charge (Qg ≈ 24 nC), fast switching (td(off) = 60 ns), body diode recovery time (trr = 300 ns), and suitability for hard-switched SMPS topologies requiring stable high-voltage operation.
Technical Context
This MOSFET employs a planar vertical DMOS structure optimized for high-voltage power conversion. Its gate threshold voltage (VGS(off) = 2.0–3.0 V) enables reliable turn-on with standard 10 V gate drivers, while the absence of secondary breakdown supports safe operation under transient overloads.
The device integrates a monolithic body diode with 0.9 V forward voltage (VDF) at 4 A and 300 ns reverse recovery time - critical for synchronous rectification and freewheeling paths in discontinuous conduction mode (DCM) converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 600 V - supports universal-input AC/DC adapters and industrial 400 V DC bus systems without derating. |
| RDS(on) max | 2.4 Ω @ VGS = 10 V - limits conduction loss to ≤38.4 W at 4 A, enabling thermally constrained PCB layouts. |
| td(off) | 60 ns - reduces switching loss during turn-off transitions in 100–500 kHz SMPS designs. |
| Ciss | 600 pF - determines gate drive power requirement (~1.2 mW per 100 kHz at 10 V drive). |
| trr | 300 ns - enables use in DCM flyback converters without significant diode recovery loss or voltage overshoot. |
| Pch | 35 W @ TC = 25°C - defines maximum continuous power handling with adequate heatsinking. |
| VGS(off) | 2.0–3.0 V - ensures clean turn-on with TTL/CMOS-compatible gate drivers and avoids false triggering. |
Pinout & Package
2SK1637-E uses the TO-220FM (RENESAS code PRSS0003AD-A) package: insulated metal tab for direct heatsink mounting, 3-pin single-ended configuration, 1.8 g mass, and JEITA SC-67 footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control electrode | Receives 10 V logic-level signal to modulate channel conductivity; requires <24 nC total gate charge for full turn-on. |
| 2 (Drain) | High-voltage output terminal | Connected to primary winding or DC bus; rated for 600 V repetitive blocking and 16 A pulsed current. |
| 3 (Source) | Reference node / return path | Serves as common reference for gate drive and current sensing; tied to power ground in non-isolated topologies. |
Key Features
| Feature | Design Value |
|---|---|
| No secondary breakdown | Enables safe operation under short-circuit and overload conditions without SOA derating curves. |
| Low drive current requirement | Reduces gate driver IC loading and allows use of low-power microcontroller GPIOs with external buffer. |
| High-speed switching | Combined td(on)/tr/td(off)/tf ≤ 133 ns supports >300 kHz switching frequency with minimal overlap loss. |
| Body diode with defined trr | 300 ns recovery enables predictable snubber design and eliminates need for external anti-parallel diode in many DCM applications. |
| Isolated heatsink tab | Allows direct mounting to grounded heatsink without insulating washer, simplifying thermal management in AC/DC power supplies. |
Applications
| AC/DC Adapter Primary Switch | DC-DC Buck Converter High-Side Switch |
|---|---|
|
Use Scenario: 65 W universal-input offline flyback adapter powering consumer electronics. IC Role / Device Role / Timing Role: Primary-side power switch controlling energy transfer from AC line to transformer. Use Value: 600 V rating accommodates 385 V DC link with margin; 2.4 Ω RDS(on) keeps conduction loss below 3% at full load. |
Use Scenario: 12 V input to 3.3 V/5 A buck converter in industrial control module. IC Role / Device Role / Timing Role: High-side synchronous rectifier switch operating at 250 kHz PWM frequency. Use Value: Fast 60 ns td(off) minimizes dead-time losses; body diode trr = 300 ns prevents shoot-through during commutation. |
| LED Driver Flyback Controller | Motor Drive Half-Bridge Leg |
|
Use Scenario: Isolated constant-current LED driver for street lighting (100–277 V AC input). IC Role / Device Role / Timing Role: Main switching element regulating LED string current via primary-side feedback. Use Value: 35 W Pch rating supports 20 W output with 60°C case temperature rise; TO-220FM tab isolation simplifies safety-compliant layout. |
Use Scenario: 24 V DC-powered 100 W BLDC motor driver in HVAC fan module. IC Role / Device Role / Timing Role: Upper-leg switch in three-phase half-bridge inverter stage. Use Value: Low 2.4 Ω RDS(on) reduces I²R loss during 4 A phase current peaks; no secondary breakdown ensures fault tolerance during stall events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP6NK60ZFP | 600 V VDSS, 5.5 A ID, 1.2 Ω RDS(on), TO-220FP package (non-isolated tab) | Higher current rating but requires insulating pad for heatsink mounting; lower RDS(on) improves efficiency above 3 A. | Prefer when higher continuous current (>4 A) and lower conduction loss are prioritized over thermal isolation simplicity. |
| FQP6N60C | 600 V VDSS, 5.4 A ID, 1.4 Ω RDS(on), TO-220 package (non-isolated tab) | Lower RDS(on) and higher ID, but lacks guaranteed trr spec and body diode characterization. | Choose when cost sensitivity outweighs need for documented diode recovery behavior in DCM topologies. |
Compared with STP6NK60ZFP and FQP6N60C, the 2SK1637-E trades higher RDS(on) for verified body diode performance, isolated heatsink interface, and Renesas' long-term supply commitment for industrial power designs - making it preferable where thermal safety and predictable recovery are critical.
Availability
2SK1637-E is available at Aetrix Electronics and suitable for AC/DC adapters, DC-DC converters, and LED drivers requiring stable component supply across extended production lifecycles.
Supply support for 2SK1637-E 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 SoC solutions for automotive, industrial, and infrastructure markets.
The 2SK1637-E belongs to Renesas' legacy high-voltage power MOSFET product line, engineered specifically for reliability-critical off-line switching applications including industrial power supplies and lighting systems.
FAQ
What is the maximum continuous drain current rating for the 2SK1637-E at 25°C case temperature?
The 2SK1637-E has a continuous drain current (ID) rating of 4 A at TC = 25°C, as specified in its Absolute Maximum Ratings table. This value assumes proper heatsinking and derates linearly to zero at 150°C channel temperature. The 2SK1637-E must not exceed this limit under steady-state conditions to maintain reliability and avoid thermal runaway.
Does the 2SK1637-E have an isolated heatsink tab, and why does that matter in layout design?
Yes, the 2SK1637-E uses the TO-220FM package with an electrically isolated metal tab, allowing direct mounting to a grounded heatsink without insulation hardware. This simplifies thermal design, reduces assembly cost, and improves safety compliance in Class II AC/DC systems - a key differentiator versus standard TO-220 variants used in the 2SK1637-E's target applications.
What is the typical gate charge (Qg) of the 2SK1637-E, and how does it affect driver selection?
While not explicitly listed in the datasheet's Electrical Characteristics table, the 2SK1637-E's dynamic input characteristics graph shows Qg ≈ 24 nC at VGS = 10 V. This value determines gate driver peak current requirements - for example, driving the 2SK1637-E at 250 kHz requires ~6 mA average gate current - guiding selection of compatible low-side or high-side drivers such as the TC4420 or IRS2004.
Can the 2SK1637-E be used in synchronous rectification configurations?
No - the 2SK1637-E is a unidirectional N-channel MOSFET intended for high-side switching only; its integrated body diode is not optimized for synchronous rectification. For synchronous rectifier roles, discrete low-VF Schottky diodes or dedicated SR controllers paired with logic-level MOSFETs (e.g., Si2302) are recommended instead of repurposing the 2SK1637-E.
What is the guaranteed minimum drain-to-source breakdown voltage (V(BR)DSS) for the 2SK1637-E?
The 2SK1637-E guarantees a minimum V(BR)DSS of 600 V, tested at ID = 10 mA and VGS = 0 V. This rating ensures reliable operation in 400 V DC bus and universal AC input (up to 277 V AC) applications with sufficient margin against transients and ringing - a critical parameter confirmed in every unit's production test flow.
2SK1637-E 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:
- -
2SK1637-E FAQ
1.How can I place an order for 2SK1637-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SK1637-E 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 2SK1637-E reliable?
The price and inventory of 2SK1637-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK1637-E is usually 5 days.
3.What payment methods are accepted for 2SK1637-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK1637-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SK1637-E?
2SK1637-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SK1637-E 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 2SK1637-E?
For technical support, including 2SK1637-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK1637-E requirements.
6.How does Aetrix verify that 2SK1637-E is sourced from the original manufacturer or authorized distributors?
All 2SK1637-E 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 2SK1637-E meets industry standards.
7.What is the process for return or replacement of 2SK1637-E?
All 2SK1637-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SK1637-E, 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 2SK1637-E part is unused and in its original packaging.
Return procedure for 2SK1637-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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