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Nexperia USA Inc. PSMN1R1-40BS,118
- Part No.:
- PSMN1R1-40BS,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
PSMN1R1-40BS,118.pdf
- Description:
- MOSFET N-CH 40V 120A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,818
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Product details
Overview
PSMN1R1-40BS,118 from Nexperia is a standard-level N-channel MOSFET in D2PAK (SOT404) package, rated for 40 V VDS, 1.16 mΩ RDS(on) at Tj = 25 °C and 120 A continuous drain current at Tmb = 25 °C. It operates up to 175 °C junction temperature and is optimized for high-efficiency DC-to-DC conversion, motor control, and server power supply switching.
For engineers reviewing the PSMN1R1-40BS,118 datasheet, PSMN1R1-40BS,118 pinout, PSMN1R1-40BS,118 application, or PSMN1R1-40BS,118 equivalent, this device delivers verified low-conduction loss, gate-drive compatibility with standard 10 V logic, and robust avalanche energy handling (1.4 J) - critical for industrial and communications power systems requiring thermal resilience and reliable load switching.
Technical Context
This MOSFET uses planar silicon technology with optimized channel geometry to achieve 1.16 mΩ RDS(on) at 10 V gate drive and 25 °C, degrading predictably to 2.3 mΩ at 175 °C. Its 136 nC total gate charge and 32 nC gate-drain charge support controlled switching in hard-switched topologies without excessive driver stress.
The device features an integrated source-drain diode with 0.8–1.2 V forward voltage at 25 A and 64 ns reverse recovery time, enabling synchronous rectification and freewheeling in buck and half-bridge configurations. Thermal resistance from junction to mounting base is 0.22 K/W typical, enabling high-power dissipation when mounted on copper-clad heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 40 V - Maximum blocking voltage compatible with 36 V nominal input rails and transient overvoltage margins in industrial DC supplies. |
| RDS(on) | 1.16 mΩ @ 10 V, 25 °C - Enables <1.5 W conduction loss at 120 A, reducing thermal load in high-current power stages. |
| ID (cont) | 120 A @ Tmb = 25 °C - Supports high-current load switching in server VRMs and motor drivers without parallel devices. |
| QG(tot) | 136 nC - Determines gate driver power requirement and switching speed; enables ~100 kHz operation with moderate gate resistance. |
| EAS | 1.4 J (unclamped) - Provides single-pulse avalanche ruggedness for inductive turn-off events in motor control and relay driving. |
| Tj max | 175 °C - Allows operation in sealed enclosures or high-ambient environments without derating below full current capability. |
| Rth(j-mb) | 0.22 K/W typ - Enables direct thermal coupling to heatsink; 306 W power dissipation achievable with <55 °C temperature rise above mounting base. |
Pinout & Package
D2PAK (SOT404) plastic surface-mount package with three leads (lead 2 cropped), featuring exposed metal mounting base for low-thermal-resistance PCB attachment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Gate (G) | Control terminal accepting 10 V standard-level drive; internal gate resistance 1.1 Ω limits ringing and simplifies driver design. |
| 2 | Drain (D) | Main high-side power path; electrically connected to mounting base - requires isolation from heatsink unless referenced to system ground. |
| 3 | Source (S) | Power return node and reference for gate drive; tied to PCB ground plane for low-inductance switching loop closure. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(on) | 1.16 mΩ at 25 °C enables <1.5 W conduction loss at 120 A, minimizing heatsink size in space-constrained server PSUs. |
| Standard gate drive | 10 V threshold-compatible operation eliminates need for level-shifters or specialized gate drivers in industrial control boards. |
| Avalanche-rated | 1.4 J unclamped energy rating supports reliable operation during inductive load interruption without external snubbers. |
| High-temperature operation | 175 °C maximum junction temperature ensures stable performance in enclosed telecom equipment and industrial motor drives. |
| Optimized capacitance profile | 994 pF Crss and 2042 pF Coss enable predictable Miller effect control and reduce EMI in high-frequency SMPS designs. |
Applications
| DC-to-DC Converters | Server Power Supplies |
|---|---|
Use Scenario: Primary-side switch in 48 V input buck converters delivering 12 V/100 A to CPU VRMs. IC Role / Device Role / Timing Role: High-current synchronous rectifier switch operating at 200–500 kHz with tight duty-cycle control. Use Value: 1.16 mΩ RDS(on) reduces conduction loss by >30% vs. comparable 2 mΩ MOSFETs, improving efficiency from 92% to 94.5% at full load. |
Use Scenario: Output stage switch in redundant 12 V/200 A server PSU modules with hot-swap capability. IC Role / Device Role / Timing Role: Load switch managing power delivery to motherboard rails with fast turn-on/turn-off (<200 ns combined). Use Value: 120 A continuous rating and 1320 A peak current support single-device implementation, eliminating paralleling complexity and layout asymmetry. |
| Motor Control | Industrial Load Switching |
Use Scenario: Half-bridge high-side switch in 24–48 V BLDC motor drives for HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: PWM-controlled power switch handling 50–100 A phase current with 100 ns–1 µs dead-time requirements. Use Value: 64 ns reverse recovery time and soft body diode characteristics minimize shoot-through risk and reduce gate driver stress during commutation. |
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules controlling 24 V solenoids and actuators. IC Role / Device Role / Timing Role: Low-latency, high-cycle-count load switch with integrated avalanche protection for inductive kickback suppression. Use Value: 1.4 J avalanche energy rating eliminates need for external TVS diodes, reducing BOM count and PCB area by 30% in DIN-rail mounted controllers. |
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 |
|---|---|---|---|
| IRF1404PBF | 40 V, 200 A, 4 mΩ RDS(on) @ 25 °C, TO-220 package, higher QG (190 nC) | Requires larger heatsink and stronger gate driver; unsuitable for D2PAK footprint-constrained layouts | Select only if higher peak current margin is needed and board space allows TO-220 mounting. |
| STP120N4F6 | 40 V, 120 A, 1.4 mΩ RDS(on) @ 25 °C, TO-220FP package, lower avalanche rating (0.8 J) | Limited to lower-energy inductive loads; lacks 175 °C rating for sealed industrial enclosures | Prefer for cost-sensitive non-automotive applications where thermal headroom and avalanche margin are secondary. |
Compared with IRF1404PBF and STP120N4F6, PSMN1R1-40BS,118 offers superior thermal performance via D2PAK mounting base, tighter RDS(on) tolerance, and higher avalanche ruggedness - making it optimal for compact, high-reliability industrial power stages where thermal density and fault resilience are prioritized.
Availability
PSMN1R1-40BS,118 is available at Aetrix Electronics and suitable for server power supplies, industrial motor control, and DC-to-DC converter designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp-up.
Supply support for PSMN1R1-40BS,118 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade power MOSFETs.
This device belongs to Nexperia's standard-level logic-compatible power MOSFET product line, engineered for high-efficiency switching in industrial, communications, and computing infrastructure where thermal resilience and gate-drive simplicity are essential.
FAQ
Is PSMN1R1-40BS,118 suitable for 100 kHz switching in a synchronous buck converter?
Yes. With 136 nC total gate charge and 32 nC gate-drain charge, it supports efficient 100 kHz operation using a 1–2 A gate driver and 4.7 Ω external resistor. Measured turn-on delay (45 ns) and fall time (53 ns) confirm minimal switching loss at this frequency, provided PCB layout minimizes gate loop inductance.
What is the maximum allowable mounting base temperature for continuous 120 A operation?
Per Figure 1 in the datasheet, continuous 120 A operation is rated at Tmb = 25 °C. At Tmb = 100 °C, current must be derated to approximately 70 A. The device remains functional up to Tmb = 150 °C, but sustained 120 A requires active cooling to maintain base temperature ≤25 °C.
Does PSMN1R1-40BS,118 require a gate resistor for stability?
Yes. A 4.7 Ω series gate resistor is recommended per Figure 14 test conditions to dampen ringing caused by 1.1 Ω internal gate resistance and PCB parasitics. Omitting it risks oscillation during switching transitions, especially in high-di/dt motor control applications.
Can the source-drain diode be used for freewheeling in a half-bridge configuration?
Yes. The diode has 0.8–1.2 V forward voltage at 25 A and 64 ns reverse recovery time, enabling use in non-synchronous freewheeling paths. However, its 117 nC recovered charge and soft recovery profile make it less efficient than Schottky alternatives in high-frequency (>300 kHz) designs.
PSMN1R1-40BS,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 120A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 1.3mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 136 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 9710 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 306W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
PSMN1R1-40BS,118 FAQ
1.How can I place an order for PSMN1R1-40BS,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for PSMN1R1-40BS,118 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 PSMN1R1-40BS,118 reliable?
The price and inventory of PSMN1R1-40BS,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PSMN1R1-40BS,118 is usually 5 days.
3.What payment methods are accepted for PSMN1R1-40BS,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PSMN1R1-40BS,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PSMN1R1-40BS,118?
PSMN1R1-40BS,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PSMN1R1-40BS,118 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 PSMN1R1-40BS,118?
For technical support, including PSMN1R1-40BS,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PSMN1R1-40BS,118 requirements.
6.How does Aetrix verify that PSMN1R1-40BS,118 is sourced from the original manufacturer or authorized distributors?
All PSMN1R1-40BS,118 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 PSMN1R1-40BS,118 meets industry standards.
7.What is the process for return or replacement of PSMN1R1-40BS,118?
All PSMN1R1-40BS,118 units undergo pre-shipment inspection (PSI). If there is an issue with PSMN1R1-40BS,118, 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 PSMN1R1-40BS,118 part is unused and in its original packaging.
Return procedure for PSMN1R1-40BS,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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