Vishay Siliconix SQM120N10-09_GE3
- Part No.:
- SQM120N10-09_GE3
- Manufacturer:
- Vishay Siliconix
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SQM120N10-09_GE3.pdf
- Description:
- MOSFET N-CH 100V 120A TO263
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SQM120N10-09_GE3 from Vishay Siliconix is an automotive-grade N-channel TrenchFET® power MOSFET rated for 100 V drain-source voltage, 120 A continuous drain current at TC = 25 °C, and 0.0095 Ω RDS(on) at VGS = 10 V. It operates up to +175 °C junction temperature and is AEC-Q101 qualified for under-hood motor control, DC-DC converter primary switching, and high-current battery disconnect applications.
For engineers reviewing the SQM120N10-09_GE3 datasheet, SQM120N10-09_GE3 pinout, SQM120N10-09_GE3 application, or SQM120N10-09_GE3 equivalent, this page delivers verified thermal resistance (RthJC = 0.4 °C/W), gate charge (Qg = 120–180 nC), avalanche energy rating (EAS = 266 mJ), and TO-263 package layout details critical for high-reliability automotive power design.
Technical Context
This MOSFET uses trench-gate silicon technology optimized for low conduction loss and fast switching in hard-switched topologies. Its 0.4 °C/W junction-to-case thermal resistance enables high-power operation with minimal heatsink mass when mounted on a PCB with copper fill.
The device features 100 % Rg and UIS testing per production lot, with guaranteed gate threshold voltage (2.5–3.5 V) and zero gate voltage drain leakage ≤ 150 μA at TJ = 175 °C - ensuring robust gate drive compatibility and low standby loss in 12 V/24 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - supports 48 V nominal bus systems with 2× safety margin against load dump transients |
| RDS(on) | 0.0095 Ω @ VGS = 10 V, ID = 30 A - yields < 8.6 W conduction loss at 92 A (derated for TJ = 150 °C) |
| ID (cont.) | 120 A @ TC = 25 °C - requires active thermal management above ~73 A at TC = 125 °C per derating curve |
| EAS | 266 mJ - withstands single-pulse inductive energy without failure in motor freewheeling or relay snubbing |
| Qg | 120–180 nC - determines gate driver power requirement; compatible with standard 1–2 A peak drivers |
| RthJC | 0.4 °C/W - enables direct heatsink mounting for >300 W dissipation with < 12 °C ΔT across case interface |
| TJ range | −55 to +175 °C - certified for engine compartment placement without external thermal shielding |
Pinout & Package
Package: TO-263 (D2PAK), surface-mount, isolated drain tab, 3-lead configuration with G–D–S terminal arrangement. Tab is electrically connected to drain (D) and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control input; 0.25–2.3 Ω gate resistance affects switching speed and EMI; requires 10 V drive for full enhancement |
| 2 (D) | Drain | Main power output node; tied to exposed metal tab for low-inductance, low-thermal-resistance connection to heatsink/PCB copper |
| 3 (S) | Source | Power return and reference for gate drive; source inductance directly impacts switching stability and dV/dt immunity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and UHAST - no additional qualification needed for Tier 1 programs |
| TrenchFET® architecture | Enables 0.0079 Ω typical RDS(on) at 25 °C while maintaining ruggedness against UIS and dv/dt-induced turn-on |
| 100 % Rg tested | Ensures consistent gate drive timing and eliminates batch-to-batch variation in switching behavior |
| Low RthJC (0.4 °C/W) | Reduces thermal interface complexity - achieves 175 °C operation with 1" × 1" FR4 PCB copper fill and minimal heatsink volume |
| High UIS rating | Withstands 73 A single-pulse avalanche current (IAS) - protects against inductive kickback in solenoid and motor control |
Applications
| Engine Start-Stop System | 48 V Mild Hybrid DC-DC Converter |
|---|---|
Use Scenario: High-current battery isolation during engine cranking to prevent voltage sag in infotainment and ADAS modules. IC Role / Device Role / Timing Role: Main power switch controlling bidirectional 48 V bus between starter battery and auxiliary loads. Use Value: 120 A rating and 175 °C operation ensure uninterrupted function during repeated cranking cycles with ambient temperatures up to 125 °C. |
Use Scenario: Primary-side synchronous rectifier in 48 V → 12 V bi-directional buck-boost converter for energy recovery. IC Role / Device Role / Timing Role: High-side switching element operating at 100–200 kHz with hard-switched PWM. Use Value: Low Qg (120–180 nC) and RDS(on) (0.0095 Ω) minimize switching and conduction losses, enabling >96 % efficiency at 5 kW output. |
| Electric Power Steering (EPS) Motor Driver | Commercial Vehicle Battery Management |
Use Scenario: Half-bridge leg in three-phase inverter driving brushless EPS motor with peak currents >100 A. IC Role / Device Role / Timing Role: Low-side switching device handling continuous 85 A phase current with 480 A pulsed capability. Use Value: 266 mJ EAS rating prevents failure during motor stall or short-circuit events; AEC-Q101 compliance ensures functional safety alignment. |
Use Scenario: Solid-state contactor replacing mechanical relays in 24 V/48 V commercial vehicle battery disconnect units. IC Role / Device Role / Timing Role: Single-pole, high-current main switch with integrated body diode for reverse polarity protection. Use Value: 0.9–1.5 V VSD at 85 A enables efficient freewheeling during fault interruption; TO-263 package allows direct bolt-down to chassis ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel 100 V power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N10F7 | 100 V, 220 A, RDS(on) = 0.0035 Ω @ 10 V - lower RDS(on) but larger TO-220FP package; higher Qg (220 nC) | Requires larger PCB area and stronger gate driver; better suited for lower-frequency, ultra-low-loss industrial SMPS | Select STL220N10F7 only if conduction loss dominates and thermal interface allows larger footprint; not drop-in for SQM120N10-09_GE3 layouts |
| IRF1407PBF | 100 V, 110 A, RDS(on) = 0.011 Ω @ 10 V - higher on-resistance, TO-220 through-hole, no AEC-Q101 qualification | Limited to non-automotive industrial use; lacks automotive reliability validation and high-temp derating data | IRF1407PBF may serve as cost-sensitive alternative in non-automotive 12 V systems where AEC-Q101 is not mandated |
Compared with STL220N10F7 and IRF1407PBF, SQM120N10-09_GE3 uniquely balances automotive qualification, surface-mount TO-263 packaging, and 0.0095 Ω RDS(on) - making it optimal for space-constrained, thermally demanding 48 V automotive subsystems requiring zero requalification effort.
Availability
SQM120N10-09_GE3 is available at Aetrix Electronics and suitable for engine start-stop systems, 48 V mild hybrid converters, and electric power steering motor drivers requiring stable component supply across multi-year automotive production cycles.
Supply support for SQM120N10-09_GE3 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
Vishay Siliconix designs and manufactures discrete semiconductors with emphasis on power MOSFETs, diodes, and optoelectronics for automotive, industrial, and computing markets.
The SQM120N10-09_GE3 belongs to Vishay's TrenchFET® Gen IV automotive MOSFET family, engineered specifically for high-current, high-temperature switching in 12 V–48 V vehicle electrical architectures.
FAQ
What is the maximum continuous drain current rating for SQM120N10-09_GE3 at 125 °C case temperature?
The SQM120N10-09_GE3 supports 73 A continuous drain current at TC = 125 °C, as specified in its Absolute Maximum Ratings table. This derated value accounts for increased RDS(on) at elevated temperature and ensures safe operation within thermal limits. The device maintains 0.0190 Ω RDS(on) max at this condition, confirming stable performance in under-hood environments.
Is SQM120N10-09_GE3 qualified to AEC-Q101, and what does that mean for automotive use?
Yes, SQM120N10-09_GE3 is AEC-Q101 qualified, meaning it has passed stress tests including temperature cycling, high-temperature reverse bias, and unbiased high-humidity accelerated stress testing. This qualification validates its reliability for automotive power applications such as motor control and battery management without requiring additional component-level qualification by the end customer.
What is the gate threshold voltage range for SQM120N10-09_GE3, and how does it affect drive circuit design?
The gate threshold voltage (VGS(th)) for SQM120N10-09_GE3 is 2.5–3.5 V at ID = 250 μA. This range ensures reliable turn-on with standard 3.3 V or 5 V logic-level drivers, but full enhancement requires ≥10 V gate drive to achieve the specified 0.0095 Ω RDS(on). Designers must ensure gate drive rails meet this requirement to avoid excessive conduction loss.
Can SQM120N10-09_GE3 be used in avalanche mode, and what is its rated single-pulse energy?
Yes, SQM120N10-09_GE3 is rated for single-pulse avalanche operation with EAS = 266 mJ and IAS = 73 A (L = 0.1 mH). This capability allows safe operation during inductive switching events like motor freewheeling or relay de-energization without external snubbers - provided pulse conditions match test criteria (≤300 μs, ≤2 % duty cycle).
What is the thermal resistance from junction to case (RthJC) for SQM120N10-09_GE3, and how should it be used in thermal design?
The junction-to-case thermal resistance (RthJC) of SQM120N10-09_GE3 is 0.4 °C/W, measured from die junction to the drain tab surface. This value enables accurate calculation of junction temperature rise when the tab is mounted to a heatsink or large copper plane. For example, at 375 W dissipation (PD max), ΔTJ-C = 150 °C - confirming why derating is essential above TC = 25 °C.
SQM120N10-09_GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- TrenchFET®
- 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):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 120A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 9.5mOhm @ 30A, 10V
- Vgs(th) (Max) @ Id:
- 3.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 180 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 8645 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 375W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (D2PAK)
SQM120N10-09_GE3 FAQ
1.How can I place an order for SQM120N10-09_GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SQM120N10-09_GE3 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 SQM120N10-09_GE3 reliable?
The price and inventory of SQM120N10-09_GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SQM120N10-09_GE3 is usually 5 days.
3.What payment methods are accepted for SQM120N10-09_GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SQM120N10-09_GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SQM120N10-09_GE3?
SQM120N10-09_GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SQM120N10-09_GE3 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 SQM120N10-09_GE3?
For technical support, including SQM120N10-09_GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SQM120N10-09_GE3 requirements.
6.How does Aetrix verify that SQM120N10-09_GE3 is sourced from the original manufacturer or authorized distributors?
All SQM120N10-09_GE3 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 SQM120N10-09_GE3 meets industry standards.
7.What is the process for return or replacement of SQM120N10-09_GE3?
All SQM120N10-09_GE3 units undergo pre-shipment inspection (PSI). If there is an issue with SQM120N10-09_GE3, 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 SQM120N10-09_GE3 part is unused and in its original packaging.
Return procedure for SQM120N10-09_GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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