NXP Semiconductors PHD34NQ10T,118
- Part No.:
- PHD34NQ10T,118
- Manufacturer:
- NXP Semiconductors
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
PHD34NQ10T,118.pdf
- Description:
- MOSFET N-CH 100V 35A DPAK
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PHD34NQ10T,118 from Nexperia is a standard-level N-channel TrenchMOS FET in DPAK (SOT428) package, rated for 100 V VDS, 35 A continuous drain current at Tmb = 25 °C, and 35 mΩ typical RDS(on) at VGS = 10 V and ID = 17 A. It delivers low conduction loss and fast switching for high-efficiency DC-DC converters and switched-mode power supplies.
For engineers reviewing the PHD34NQ10T,118 datasheet, PHD34NQ10T,118 pinout, PHD34NQ10T,118 application, or PHD34NQ10T,118 equivalent, this page provides verified thermal resistance (Rth(j-mb) = 1.1 K/W), gate charge (QG(tot) = 40 nC), avalanche energy (EDS(AL)S = 170 mJ), diode forward voltage (VSD = 0.85 V), and safe operating area (SOA) data critical for power stage design validation.
Technical Context
This device employs TrenchMOS technology to achieve low RDS(on) and optimized dynamic characteristics: QGD = 18 nC and Ciss = 1704 pF enable efficient high-frequency operation up to several hundred kHz. Its unclamped inductive avalanche rating (IAS = 35 A, EDS(AL)S = 170 mJ) supports robustness in hard-switched topologies.
The mounting base (pin 2) is internally connected to the drain, providing low-inductance thermal and electrical path. Internal source inductance (LS = 7.5 nH) and drain inductance (LD = 3.5 nH) are specified to support accurate switching loss modeling in synchronous buck or half-bridge configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - Maximum blocking voltage for primary-side switching in 48 V input DC-DC and offline SMPS designs. |
| RDS(on) | 35 mΩ typ @ VGS = 10 V, ID = 17 A, Tj = 25 °C - Enables <1.2 W conduction loss at 20 A, reducing heatsink requirements. |
| QG(tot) | 40 nC - Total gate charge supporting <500 kHz PWM operation with moderate gate driver strength (e.g., 1 A peak). |
| Rth(j-mb) | 1.1 K/W - Junction-to-mounting-base thermal resistance enables >100 W power dissipation with 110 K temperature rise above PCB copper pad. |
| EDS(AL)S | 170 mJ - Non-repetitive avalanche energy rating allows reliable operation during transient overvoltage events without external snubbers. |
| VGS(th) | 2–4 V typ @ ID = 1 mA - Ensures clean turn-on with standard 5 V or 3.3 V logic-level gate drive, avoiding partial enhancement. |
| VSD | 0.85 V typ @ IS = 17 A - Low body diode forward voltage reduces reverse recovery losses in synchronous rectification or freewheeling paths. |
Pinout & Package
PHD34NQ10T,118 uses the SOT428 (DPAK) plastic surface-mount package with three leads (one lead cropped). The mounting base (mb) is electrically connected to the drain terminal and serves as the primary thermal interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Gate (G) | Control terminal; requires ≤20 V gate-source voltage; low gate leakage (<100 nA) ensures stable bias in high-impedance drive circuits. |
| 2 | Drain (D) / Mounting Base (mb) | Main high-side power terminal and thermal path; not externally accessible-soldered directly to PCB copper pour for heat dissipation. |
| 3 | Source (S) | Power return path and reference for gate drive; internal source inductance (7.5 nH) impacts high-dI/dt switching behavior and layout sensitivity. |
Key Features
| Feature | Design Value |
|---|---|
| TrenchMOS technology | Delivers 35 mΩ RDS(on) in DPAK, enabling higher power density than planar MOSFETs of comparable size. |
| Low Rth(j-mb) | 1.1 K/W thermal resistance allows >100 W continuous operation with minimal PCB copper area, reducing board cost and footprint. |
| Fast switching with low QGD | 18 nC gate-drain charge minimizes Miller plateau duration, enabling clean turn-off and reduced cross-conduction risk in synchronous topologies. |
| Robust avalanche capability | 170 mJ unclamped avalanche energy supports reliable operation under inductive load transients without external protection components. |
| Optimized body diode | VSD = 0.85 V and trr = 76 ns allow use in freewheeling or synchronous rectifier roles with lower recovery loss than standard discrete diodes. |
Applications
| Server VRM Power Stage | Industrial 48 V DC-DC Converter |
|---|---|
Use Scenario: High-current, high-efficiency point-of-load regulation in 1U server motherboards with 12 V input and 0.8–1.8 V output. IC Role / Device Role / Timing Role: Primary-side high-side switch in synchronous buck converter operating at 300–600 kHz. Use Value: 35 mΩ RDS(on) and 40 nC QG enable >94% efficiency at 60 A load while maintaining thermal margin on compact 2-layer PCBs. |
Use Scenario: Isolated or non-isolated step-down conversion for programmable logic controllers (PLCs) and motor drives powered from 48 V industrial bus. IC Role / Device Role / Timing Role: Main switching FET in fixed-frequency (200–500 kHz) buck regulator delivering 5–24 V outputs. Use Value: 100 V VDS rating accommodates 48 V nominal input with 100% surge margin; 1.1 K/W Rth(j-mb) simplifies thermal design in sealed enclosures. |
| Telecom AC-DC Front-End | Consumer Laptop Adapter |
Use Scenario: Active clamp or LLC resonant converter primary switch in telecom rectifiers handling universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier or auxiliary high-side switch in PFC boost stage. Use Value: 170 mJ avalanche energy withstands line surges and transformer leakage spikes; low QGD improves ZVS timing margin in resonant topologies. |
Use Scenario: Compact, low-noise 65 W laptop AC adapter using quasi-resonant flyback or active-clamp forward topology. IC Role / Device Role / Timing Role: Primary switch in QR flyback operating at variable frequency up to 130 kHz. Use Value: 35 mΩ RDS(on) and 0.85 V VSD reduce conduction and recovery losses, improving light-load efficiency and meeting CoC Tier 2 requirements. |
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 |
|---|---|---|---|
| STP36NF10 | TO-220 package; higher RDS(on) (40 mΩ); no specified avalanche energy rating. | Requires larger heatsink and cannot replace PHD34NQ10T,118 in space-constrained or avalanche-prone designs. | Choose only if through-hole assembly and lower switching frequency (<100 kHz) are acceptable. |
| IRF3205PBF | D2PAK package; 8.0 mΩ RDS(on); higher QG (71 nC); no avalanche rating published. | Offers lower conduction loss but demands stronger gate drive and lacks documented ruggedness for inductive loads. | Select when thermal budget permits larger package and avalanche stress is absent in final circuit. |
Compared with STP36NF10 and IRF3205PBF, PHD34NQ10T,118 uniquely balances DPAK footprint, 35 mΩ conduction loss, 40 nC gate charge, and certified 170 mJ avalanche energy-making it optimal for compact, high-reliability 100 V switching applications where thermal, layout, and transient robustness are co-constrained.
Availability
PHD34NQ10T,118 is available at Aetrix Electronics and suitable for server VRMs, industrial 48 V DC-DC converters, telecom AC-DC front-ends, and consumer laptop adapters requiring stable component supply across multi-year production cycles.
Supply support for PHD34NQ10T,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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, consumer, and wearable markets.
The PHD34NQ10T,118 belongs to Nexperia's TrenchMOS standard-level PowerMOS family, engineered for high-efficiency, high-reliability switching in computing and industrial power conversion where thermal performance and avalanche ruggedness are critical.
FAQ
What is the maximum continuous drain current rating for PHD34NQ10T,118?
The PHD34NQ10T,118 is rated for 35 A continuous drain current at mounting base temperature (Tmb) = 25 °C and VGS = 10 V. At Tmb = 100 °C, the rating reduces to 25 A per the limiting values table. Derating must follow the normalized ID vs. Tmb curve in Figure 2 to ensure safe operation under real thermal conditions.
Does PHD34NQ10T,118 support logic-level gate drive?
Yes, PHD34NQ10T,118 has a gate-source threshold voltage (VGS(th)) of 2–4 V typical at ID = 1 mA, enabling reliable turn-on with standard 3.3 V or 5 V logic-level drivers. However, full enhancement to 35 mΩ RDS(on) requires VGS ≥ 10 V, so gate drive must deliver sufficient voltage and current to overcome QG = 40 nC.
What is the thermal resistance from junction to mounting base for PHD34NQ10T,118?
The PHD34NQ10T,118 has a maximum thermal resistance of Rth(j-mb) = 1.1 K/W from junction to mounting base. This value is measured under standardized test conditions and assumes proper soldering of the mounting base to a minimum footprint copper area on the PCB, enabling effective heat transfer away from the die.
Is PHD34NQ10T,118 qualified for automotive applications?
No, PHD34NQ10T,118 is not automotive-qualified. Per Nexperia's legal disclaimers, it is designed and qualified only for computing, communications, consumer, and industrial applications. It has not undergone AEC-Q101 stress testing or automotive-grade reliability qualification, and its use in safety-critical automotive systems is not supported.
What is the gate-drain charge (QGD) specification for PHD34NQ10T,118?
The PHD34NQ10T,118 specifies QGD = 18 nC typical under conditions of VGS = 10 V, ID = 34 A, VDS = 80 V, and Tj = 25 °C. This parameter directly influences Miller plateau duration and switching speed, making it essential for optimizing gate driver selection and minimizing turn-off losses in high-frequency designs.
PHD34NQ10T,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- TrenchMOS™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 35A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 40mOhm @ 17A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 40 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1704 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 136W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
PHD34NQ10T,118 FAQ
1.How can I place an order for PHD34NQ10T,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for PHD34NQ10T,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 PHD34NQ10T,118 reliable?
The price and inventory of PHD34NQ10T,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PHD34NQ10T,118 is usually 5 days.
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5.How can I obtain technical support or documentation for PHD34NQ10T,118?
For technical support, including PHD34NQ10T,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PHD34NQ10T,118 requirements.
6.How does Aetrix verify that PHD34NQ10T,118 is sourced from the original manufacturer or authorized distributors?
All PHD34NQ10T,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 PHD34NQ10T,118 meets industry standards.
7.What is the process for return or replacement of PHD34NQ10T,118?
All PHD34NQ10T,118 units undergo pre-shipment inspection (PSI). If there is an issue with PHD34NQ10T,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 PHD34NQ10T,118 part is unused and in its original packaging.
Return procedure for PHD34NQ10T,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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