IPD70R1K4P7SAUMA1 - 700V 4A CoolMOS P7 MOSFET | Infineon
MPN: IPD70R1K4P7SAUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.18 | $11.80 |
| 100 | $0.92 | $92.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.61 | $610.00 |
| 2,500 | $0.52 | $1,300.00 |
Drop-in alternatives for IPD70R1K4P7SAUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IPD70R1K0P7SAUMA1
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IPD70R360P7SAUMA1
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IPD80R1K4P7ATMA1
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✅ Drop-In ⚠️ 参数待验证✓ In Stock
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View Datasheet →IPD70R1K4P7ATMA1
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
IPD70R1K4P7SAUMA1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies |
| Part Family | CoolMOS P7 (700V Superjunction) |
| Polarity / Channel Type | N-Channel |
| Drain-Source Voltage (VDS) | 700 V |
| Continuous Drain Current (ID) at Tc=25C | 4 A |
| On-Resistance RDS(on) max at VGS=10V, ID | 1.4 ohm |
| Total Power Dissipation (Ptot) at Tc=25C | 23 W |
| Operating Junction Temperature | -55C to +150C |
| Package | PG-TO252-3 (DPAK) |
| Mounting Type | Surface Mount |
| Pin Count | 3 (Gate, Drain, Source) |
| Technology | Superjunction (CoolMOS P7) |
| Avalanche Energy Rated | Yes (100% avalanche tested) |
| ESD Protection | Integrated (per datasheet) |
| RoHS Status | Compliant |
IPD70R1K4P7SAUMA1 Pin Configuration
| Pin 1 | Gate (G) — Gate drive input; ESD-protected, threshold approximately 3-4V |
| Pin 2 | Drain (D) — High-voltage drain; internally bonded to the metal tab on the back of the package |
| Pin 3 | Source (S) — Source and power-ground return path for the gate drive and main current |
| Pin Tab | Drain (D) — Metal back-tab connected to pin 2 (drain); serves as the thermal pad and must be soldered to a copper pour for heatsinking |
Safe Operating Area (DC)
Typical Applications
IPD70R1K4P7SAUMA1 is suitable for 6 applications: Mobile Phone Charger (Flyback), Notebook / Laptop Adapter, LED Lighting Driver, Auxiliary / Standby Power Supply, Industrial SMPS Auxiliary Rail, Battery Charger for Power Tools.
Mobile Phone Charger (Flyback)
The IPD70R1K4P7SAUMA1 is a primary-side switch for 5W-15W USB mobile-phone chargers using isolated flyback topology. Its 700V VDS rating covers the 400V DC bus from universal-input rectified mains (85-265 VAC) with margin for leakage-inductance spikes, while the 1.4-ohm RDS(on) keeps conduction losses acceptable at the typical 1A-2A primary RMS current of this power class. The integrated ESD diode reduces external component count on the gate node, and the low gate charge of the P7 family enables switching frequencies above 65 kHz to shrink the transformer size. Designers should keep the junction below 110C at 40C ambient by using at least 200 mm^2 of copper on the drain tab.
Recommended
Notebook / Laptop Adapter
For 45W to 65W notebook adapters, the IPD70R1K4P7SAUMA1 can serve as the primary-side switch in a quasi-resonant or valley-switching flyback converter. The CoolMOS P7 family offers integrated snubber behavior at the source lead that reduces EMI ringing at turn-off, helping designers meet EN 55022 Class B EMI limits without extensive filtering. Its 4A continuous and approximately 12A pulsed drain current capability covers the primary RMS current of a 65W adapter at low line input. The 1.4-ohm RDS(on) yields approximately 0.5W conduction loss at the worst-case operating point, which is acceptable for an adapter with adequate heatsinking.
Recommended
LED Lighting Driver
Isolated constant-current LED drivers for industrial and commercial lighting use the IPD70R1K4P7SAUMA1 as the primary-side flyback switch when operating from universal AC mains. The 700V breakdown voltage handles the rectified 400V DC bus plus leakage-inductance overshoot with safety margin, while the 1.4-ohm RDS(on) keeps total conduction loss below 1W even at the typical 0.7A primary RMS current of a 30W LED driver. The CoolMOS P7's controlled dv/dt at turn-off helps the design meet conducted and radiated EMI standards required for residential and commercial lighting fixtures. Use a primary-side regulation controller such as the IRS2980S for lowest BOM cost.
Recommended
Auxiliary / Standby Power Supply
White goods, televisions, and industrial control equipment use auxiliary or standby power supplies that operate continuously and demand high efficiency at light load. The IPD70R1K4P7SAUMA1 is well-suited for these 3W-10W converters because the CoolMOS P7 technology offers low switching losses at light load and supports frequency-reduction (valley switching) burst-mode operation. The 700V VDS handles the rectified mains in both 110V and 220V nominal regions. The 23W continuous power dissipation capability of the PG-TO252-3 package provides ample thermal margin for the typically low output power of standby rails.
Recommended
Industrial SMPS Auxiliary Rail
Within larger industrial SMPS systems, the IPD70R1K4P7SAUMA1 is an excellent choice for an auxiliary 5W-15W flyback converter that derives housekeeping bias supplies from the main high-voltage DC bus. The 700V rating covers 380V nominal industrial rectified bus plus transient spikes from load steps on the main converter, and the 1.4-ohm RDS(on) keeps efficiency above 85% at full output. The TO-252 (DPAK) package is well-supported by automated pick-and-place assembly lines common in industrial SMPS manufacturing. Pair with a wide-Vin buck regulator for the 3.3V logic rail.
Recommended
Battery Charger for Power Tools
Cordless power-tool chargers use isolated flyback converters operating from universal AC mains to charge 12V-20V Li-ion battery packs. The IPD70R1K4P7SAUMA1 can handle the primary-side switching at the typical 1A-2A primary RMS current of these 30W-65W chargers. The 700V rating ensures reliable operation across the universal AC input range, and the PG-TO252-3 (DPAK) package is small enough for the compact form factor demanded by handheld power-tool charger products. Use a synchronous rectifier on the secondary side for maximum efficiency.
Recommended
Recommended Products Summary
Engineering reference data for IPD70R1K4P7SAUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IPD70R1K0P7SAUMA1 | IPD70R360P7SAUMA1 | IPD80R1K4P7ATMA1 | IPD60R280P7SAUMA1 | IPL65R070C7AUMA1 |
|---|---|---|---|---|---|---|
| Package | PG-TO252-3 (DPAK) | PG-TO252-3 (DPAK) | PG-TO252-3 (DPAK) | PG-TO252-3 (DPAK) | PG-TO252-3 (DPAK) | PG-TO252-3 (DPAK) |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Drain-Source Voltage VDS | 700 V | 700 V | 700 V | 800 V | 650 V | 650 V |
| On-Resistance RDS(on) max at 25C | 1.4 ohm | 1.0 ohm | 0.36 ohm | 1.4 ohm | 0.28 ohm | 0.07 ohm |
| Continuous Drain Current (Tc=25C) | 4 A | 5 A | 10 A | 4 A | 10 A | 30 A |
| Total Power Dissipation (Tc=25C) | 23 W | 26 W | 40 W | 23 W | 43 W | 125 W |
| Technology | CoolMOS P7 (Superjunction) | CoolMOS P7 | CoolMOS P7 | CoolMOS P7 | CoolMOS P7 | CoolMOS C7 |
| Unit Price (qty 1, USD approx) | 1.42 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Best-in-class price/performance ratio in 1.4-ohm RDS(on) class (vs IPL65R070C7AUMA1)
- Same RDS(on) at higher 800V rating (vs IPD80R1K4P7ATMA1)
- Lower RDS(on) at same 700V rating (vs IPD70R1K0P7SAUMA1)
Design Notes
Estimated: at VIN=325V DC, primary RMS current = 0.5A, and RDS(on) approximately 1.4 ohm, conduction loss in the IPD70R1K4P7SAUMA1 is roughly 0.35W continuous. The PG-TO252-3 package has a junction-to-ambient thermal resistance of approximately 80 C/W on a 1 oz 100 mm^2 copper pour, yielding a 28C temperature rise. For continuous 1A primary current operation, expand the drain copper area to 300 mm^2 or attach a small clip-on heatsink to keep Tj below 110C at 40C ambient.
Place the gate drive resistor and the gate-source pull-down resistor (typically 10-100 kohm) as close as possible to the gate pin to minimize the parasitic loop area. Keep the high-voltage drain loop (transformer primary winding to drain to source return) tight to reduce dv/dt-induced ringing. The drain tab must be soldered to a copper pour sized for the package thermal pad; recommend thermal vias to inner copper planes for additional heat spreading.
Avoid driving the gate above the absolute maximum VGS rating of +/-20V (typical for 700V CoolMOS P7) - use a Zener clamp between gate and source if the driver IC does not provide internal clamping. Do not exceed the 700V VDS rating at any transient, including the leakage-inductance spike when the MOSFET turns off; add an RCD snubber across the primary winding if the measured spike exceeds 600V. Finally, never operate the device above 150C junction temperature to avoid long-term reliability degradation.
Compliance Information
RoHS compliant per Infineon product page. Consumer-grade part; not AEC-Q100 qualified. Choose Infineon's Auto-qualified CoolMOS portfolio for automotive applications.
