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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies IPU95R3K7P7AKMA1

Name: IPU95R3K7P7AKMA1
Brand: Infineon Technologies
SKU: IPU95R3K7P7AKMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPU95R3K7P7AKMA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: IPU95R3K7P7AKMA1.pdf

Description:: MOSFET N-CH 950V 2A TO251-3

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Product details

Overview

IPU95R3K7P7AKMA1 from Infineon is a 950V superjunction N-channel MOSFET in PG-TO251-3 (IPAK) package, optimized for high-voltage flyback and PFC stages. It delivers R_DS(on) = 3.7 Ω (max), Q_g = 6 nC (typ), E_oss = 0.5 µJ @ 500V, V_GS(th) = 3 V (typ), and integrated ESD protection (HBM Class 1C), targeting LED lighting, smart metering, and auxiliary power supplies.

For engineers reviewing the IPU95R3K7P7AKMA1 datasheet, IPU95R3K7P7AKMA1 pinout, IPU95R3K7P7AKMA1 application, or IPU95R3K7P7AKMA1 equivalent, key selection criteria include its 950V V_DS, low gate charge for fast switching, tight V_GS(th) tolerance (±0.5V), body diode recovery performance (t_rr = 320 ns), and industrial qualification per JEDEC.

Technical Context

This CoolMOS™ P7 device employs charge-balanced superjunction architecture to achieve best-in-class R_DS(on) × E_oss figure-of-merit at 950V, enabling higher efficiency in discontinuous conduction mode (DCM) flyback converters. Its 3V gate threshold with ±0.5V variation ensures robust turn-on across temperature and simplifies gate driver design.

The integrated Zener-protected gate structure provides HBM Class 1C ESD immunity, while the internal body diode supports synchronous rectification in quasi-resonant topologies. Thermal resistance R_thJC = 5.6 °C/W enables 22 W power dissipation at T_C = 25°C, supporting compact heatsink integration in space-constrained adapters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	950 V - Withstands full mains surge in universal-input offline SMPS without derating.
R_DS(on), max	3.7 Ω @ T_j = 150°C - Enables <2 W conduction loss at 1.4 A continuous drain current.
Q_g, typ	6 nC - Reduces gate drive power and allows use of low-cost, low-current drivers (e.g., 100 mA peak).
E_oss @ 500V	0.5 µJ - Low output energy minimizes switching loss during hard-switched transitions in flyback snubberless designs.
V_GS(th), typ	3 V with ±0.5V variation - Ensures reliable turn-on down to 4.5 V supply rails and improves production yield consistency.
t_rr	320 ns - Supports >100 kHz operation with controlled diode reverse recovery in self-oscillating flyback controllers.
R_thJC	5.6 °C/W - Allows thermal interface design with ≤11°C rise per watt, critical for sealed LED driver enclosures.

Pinout & Package

IPU95R3K7P7AKMA1 uses the PG-TO251-3 (IPAK) surface-mount package with exposed drain pad for enhanced thermal performance. Pin 1 is Source, Pin 2 is Gate, Pin 3 is Drain - with internal body diode anode connected to Source and cathode to Drain.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Reference node for gate drive and current return path	Connected to PCB ground plane; serves as cathode of internal body diode and reference for V_GS control.
Pin 2 (Gate)	Control terminal for channel conduction	High-impedance input requiring <6 nC charge; sensitive to ESD - routed away from noisy traces and protected by series ferrite bead in paralleling applications.
Pin 3 (Drain)	Main high-voltage power terminal	Exposed metal pad tied to high-side switching node; carries full AC/DC input voltage and must be isolated with ≥4 mm creepage on PCB.

Key Features

Feature	Design Value
Best-in-class R_DS(on) × E_oss	Enables >90% efficiency in 15–30 W flyback designs without active clamp or ZVS assistance.
V_GS(th) = 3 V ± 0.5 V	Eliminates need for gate voltage boosting in low-V_CC auxiliary supplies (<6 V), reducing BOM count.
Integrated Zener ESD protection	Reduces field failure rate in automated assembly lines handling unshielded boards prior to final enclosure sealing.
JEDEC-qualified for industrial temp range	Guarantees parametric stability from −55°C to +150°C junction, validated for 10-year operation in smart meter housings.
Optimized C_iss/C_oss ratio	Improves controllability during Miller plateau region, enabling stable operation with standard 50 Ω gate resistors.

Applications

LED Lighting Driver

Smart Meter Auxiliary Supply

Use Scenario: Constant-voltage flyback converter powering LED strings in outdoor streetlights with wide input (85–305 VAC).

IC Role / Device Role / Timing Role: Primary-side high-voltage switch regulating output via primary-side sensing; operates in DCM at 65–100 kHz.

Use Value: 950V rating eliminates need for voltage clamping networks; low E_oss reduces thermal stress during cold-start surges.

Use Scenario: Isolated auxiliary power supply generating 5 V/100 mA for metrology ICs and RTC in DIN-rail smart meters.

IC Role / Device Role / Timing Role: High-side switch in quasi-resonant flyback with self-driven synchronous rectification on secondary side.

Use Value: Tight V_GS(th) tolerance ensures consistent startup across batch and temperature; integrated body diode enables simple snubberless layout.

Low-Power Adapter

Solar Microinverter AUX Stage

Use Scenario: 12 W USB-C adapter with no-load power <30 mW and CoC Tier 2 compliance.

IC Role / Device Role / Timing Role: Main switching transistor in primary-side regulated flyback with burst-mode control below 10% load.

Use Value: Low Q_g and C_iss minimize gate drive losses during frequent burst cycles, improving light-load efficiency.

Use Scenario: Auxiliary DC-DC stage powering gate drivers and sensors in 300–600 V DC string-connected microinverters.

IC Role / Device Role / Timing Role: High-voltage PFC boost switch operating in critical conduction mode (CrM) at 50–150 kHz.

Use Value: 950V rating accommodates PV open-circuit voltage up to 600 V with 1.5× safety margin; low R_DS(on) limits conduction loss at 1.4 A RMS.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPU95R3K7P7ATMA1	Same die, tape-and-reel packaging (vs. tube); identical electrical specs and thermal performance.	No functional difference - selected only for automated SMT placement compatibility.	Choose for high-volume pick-and-place assembly; same thermal and electrical behavior as AKMA1.
IPU95R4K0P7AKMA1	Higher R_DS(on) = 4.0 Ω (max), otherwise identical P7 platform features and pinout.	Suitable where 5–10% higher conduction loss is acceptable for cost optimization in lower-power designs (<10 W).	Select when BOM cost sensitivity outweighs marginal efficiency gain; drop-in replacement with no layout change.

Compared with IPU95R3K7P7AKMA1, the ATMA1 variant offers identical performance in automated manufacturing, while the 4.0 Ω version trades 0.3 Ω R_DS(on) for lower unit cost - making it viable for cost-driven, thermally relaxed auxiliary supplies.

Availability

IPU95R3K7P7AKMA1 is available at Aetrix Electronics and suitable for LED lighting drivers, smart meter auxiliary supplies, and low-power AC/DC adapters requiring stable component supply, long-term industrial qualification, and JEDEC-compliant reliability.

Supply support for IPU95R3K7P7AKMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with leadership in silicon and wide-bandgap power devices.

This part belongs to the CoolMOS™ P7 superjunction MOSFET product line, engineered specifically for high-efficiency, high-voltage offline SMPS in consumer, industrial, and energy infrastructure applications.

FAQ

What is the maximum continuous drain current for IPU95R3K7P7AKMA1 at 100°C case temperature?

The maximum continuous drain current is 1.4 A at T_C = 100°C, as specified in Table 2 of the datasheet. This rating is limited by junction temperature (T_j,max = 150°C) and assumes proper PCB copper area for thermal conduction. At T_C = 25°C, the rating increases to 2 A.

Does IPU95R3K7P7AKMA1 require external gate protection against ESD?

No - it integrates a Zener diode for gate-source ESD protection rated to HBM Class 1C (1 kV). However, standard handling precautions (grounded workstations, anti-static packaging) remain essential during PCB assembly to prevent latent damage beyond the rated level.

Can IPU95R3K7P7AKMA1 be used in parallel configurations?

Yes, but Infineon recommends using individual gate ferrite beads or separate totem-pole drivers to balance dynamic current sharing. The tight V_GS(th) tolerance (±0.5V) and matched R_DS(on) drift improve static matching, yet layout symmetry and gate loop inductance control are critical for stable paralleling.

Is the internal body diode suitable for synchronous rectification in flyback converters?

The integrated body diode has t_rr = 320 ns and Q_rr = 1 µC under specified conditions, making it usable in self-oscillating or QR flyback topologies where reverse recovery is managed by controller timing. For high-frequency synchronous rectification, an external Schottky diode is preferred due to lower forward voltage and zero recovery charge.

IPU95R3K7P7AKMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™ P7

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 950 V

Current - Continuous Drain (Id) @ 25°C:: 2A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 3.7Ohm @ 800mA, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 40µA

Gate Charge (Qg) (Max) @ Vgs:: 6 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 196 pF @ 400 V

FET Feature:: -

Power Dissipation (Max):: 22W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO251-3

IPU95R3K7P7AKMA1 FAQ

1.How can I place an order for IPU95R3K7P7AKMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPU95R3K7P7AKMA1 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 IPU95R3K7P7AKMA1 reliable?

The price and inventory of IPU95R3K7P7AKMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPU95R3K7P7AKMA1 is usually 5 days.

3.What payment methods are accepted for IPU95R3K7P7AKMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPU95R3K7P7AKMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPU95R3K7P7AKMA1?

IPU95R3K7P7AKMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPU95R3K7P7AKMA1 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 IPU95R3K7P7AKMA1?

For technical support, including IPU95R3K7P7AKMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPU95R3K7P7AKMA1 requirements.

6.How does Aetrix verify that IPU95R3K7P7AKMA1 is sourced from the original manufacturer or authorized distributors?

All IPU95R3K7P7AKMA1 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 IPU95R3K7P7AKMA1 meets industry standards.

7.What is the process for return or replacement of IPU95R3K7P7AKMA1?

All IPU95R3K7P7AKMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IPU95R3K7P7AKMA1, 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 IPU95R3K7P7AKMA1 part is unused and in its original packaging.

Return procedure for IPU95R3K7P7AKMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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