Vishay Siliconix SI1300BDL-T1-GE3
- Part No.:
- SI1300BDL-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Category:
- FETs, MOSFETs
- Package:
- SC-70, SOT-323
- Datasheet:
-
SI1300BDL-T1-GE3.pdf
- Description:
- MOSFET N-CH 20V 400MA SC70-3
- Quantity:
- Payment:

- Shipping:

Inventory:2,140
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Product details
Overview
SI1300BDL-T1-GE3 from Vishay Siliconix is an N-channel 20 V TrenchFET® power MOSFET in SC-70 package, rated for 0.4 A continuous drain current at TC = 25 °C, with RDS(on) = 0.85 Ω at VGS = 4.5 V and 0.335 nC total gate charge. It serves as a low-side load switch in space-constrained portable electronics.
For engineers reviewing the SI1300BDL-T1-GE3 datasheet, SI1300BDL-T1-GE3 pinout, SI1300BDL-T1-GE3 application, or SI1300BDL-T1-GE3 equivalent, key selection criteria include its halogen-free and RoHS-compliant construction, low gate charge for fast switching in battery-powered systems, and thermal resistance profile suitable for FR4 PCB mounting without heatsinking.
Technical Context
This MOSFET uses trench-based silicon architecture to achieve low on-resistance and fast switching performance in a 3-pin surface-mount package. Its gate threshold voltage (0.4–1.0 V) enables direct drive from 1.8 V and 2.5 V logic, while the 0.335 nC Qg at VGS = 2.5 V supports efficient operation in high-frequency PWM control.
The device features 100 % Rg tested units and integrates a body diode with VSD = 0.7–1.2 V at IS = 0.05 A. Absolute maximum ratings include ±8 V gate-source voltage and -55 to +150 °C operating junction temperature, supporting industrial and extended-temperature portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 20 V - Maximum drain-source blocking voltage for low-voltage DC/DC and load-switch applications |
| RDS(on) | 0.85 Ω at VGS = 4.5 V - Enables <100 mW conduction loss at 0.4 A, suitable for compact battery management |
| ID (cont.) | 0.4 A at TC = 25 °C - Continuous current rating for thermally limited SC-70 footprint |
| Qg | 0.335 nC at VGS = 2.5 V - Low gate charge minimizes driver power and switching losses in 1–5 MHz PWM |
| PD | 0.19 W at TA = 25 °C - Power dissipation limit on standard FR4 board, defining thermal derating envelope |
| RthJA | 670 °C/W max - High junction-to-ambient resistance confirms need for layout-aware thermal design |
Pinout & Package
SC-70 (3-lead) surface-mount package with exposed drain pad for thermal conduction. Pin 1 = Gate, Pin 2 = Source, Pin 3 = Drain (top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G | Gate | Control terminal accepting 0.4–1.0 V threshold logic; requires <12 Ω series gate resistor for EMI control |
| S | Source | Reference node for gate drive and current return path; tied to system ground in low-side configuration |
| D | Drain | High-side connection to load; electrically and thermally coupled to package backside for heat sinking |
Key Features
| Feature | Design Value |
|---|---|
| TrenchFET® technology | Enables sub-1 Ω RDS(on) in SC-70, reducing conduction loss vs. planar MOSFETs of same size |
| Halogen-free construction | Meets IEC 61249-2-21, eliminating brominated flame retardants for safer end-of-life processing |
| 100 % Rg tested | Guarantees gate resistance between 1.5–12 Ω, ensuring consistent turn-on timing across production lots |
| RoHS compliance | Fully compliant with Directive 2002/95/EC, enabling use in EU consumer and industrial markets |
Applications
| Battery Protection Circuit | USB Port Power Switch |
|---|---|
Use Scenario: Isolates Li-ion cell during overvoltage or overtemperature fault conditions in single-cell packs. IC Role / Device Role / Timing Role: Low-side protection switch controlled by battery management IC; operates in static on/off mode with <1 µs response. Use Value: 0.85 Ω RDS(on) limits voltage drop to <340 mV at 0.4 A, preserving pack efficiency and runtime. | Use Scenario: Enables/disables 5 V power delivery to downstream USB peripherals in portable hubs and dongles. IC Role / Device Role / Timing Role: Load switch driven by microcontroller GPIO; toggled at <1 Hz during plug/unplug detection. Use Value: 0.335 nC Qg allows full turn-on with <1 mA peak gate current from 3.3 V MCU, avoiding external driver. |
| LED Backlight Dimming | IoT Sensor Node Power Gating |
Use Scenario: PWM-controlled current sink for white LED strings in compact displays. IC Role / Device Role / Timing Role: Synchronous low-side switch in constant-current LED driver; switched at 1–5 kHz. Use Value: Fast 7–12 ns turn-on delay and 10–15 ns rise time support clean PWM edges without overshoot. | Use Scenario: Powers down non-critical sensors (e.g., humidity, ambient light) between wake cycles in battery-operated nodes. IC Role / Device Role / Timing Role: Standby power switch controlled by ultra-low-power MCU; activated every 10–60 s. Use Value: 100 nA IDSS at 20 V ensures <2 nW leakage per switch, extending multi-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2004LK-7 | RDS(on) = 0.65 Ω at VGS = 4.5 V; higher ID = 0.55 A; SOT-23 package | Higher current capacity suits 500 mA loads but requires larger PCB area | Select when >0.4 A continuous current or lower on-resistance is required, accepting SOT-23 footprint |
| AO3400 | RDS(on) = 0.042 Ω at VGS = 10 V; not specified at 2.5 V; SOT-23 package | Requires ≥4.5 V gate drive; unsuitable for 1.8 V/2.5 V logic interfaces | Choose only if system provides ≥4.5 V gate voltage and needs sub-50 mΩ RDS(on) |
Compared with DMN2004LK-7 and AO3400, SI1300BDL-T1-GE3 uniquely balances ultra-low gate charge (0.335 nC), 2.5 V logic compatibility, and halogen-free compliance in SC-70-making it optimal for miniaturized, low-power, and environmentally regulated designs where gate drive voltage and footprint are constrained.
Availability
SI1300BDL-T1-GE3 is available at Aetrix Electronics and suitable for battery protection circuits, USB power switches, LED backlight dimming, and IoT sensor node power gating requiring stable component supply and long-term lifecycle assurance.
Supply support for SI1300BDL-T1-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 is a global leader in discrete semiconductors, specializing in MOSFETs, diodes, optoelectronics, and passive components with emphasis on reliability and power efficiency.
The Si1300BDL product line delivers ultra-small-signal N-channel MOSFETs optimized for space-constrained, low-voltage, low-power switching in portable and wearable electronics.
FAQ
What is the maximum gate-source voltage rating for SI1300BDL-T1-GE3?
The SI1300BDL-T1-GE3 has a maximum gate-source voltage rating of ±8 V, as specified in its absolute maximum ratings table. Exceeding this voltage risks permanent gate oxide damage. This rating supports compatibility with 3.3 V, 2.5 V, and 1.8 V logic families when using appropriate gate drive limiting resistors or clamping circuits. The SI1300BDL-T1-GE3 must never be subjected to transient spikes beyond ±8 V, even briefly.
Does SI1300BDL-T1-GE3 support direct drive from a 1.8 V microcontroller GPIO?
Yes, SI1300BDL-T1-GE3 supports direct drive from a 1.8 V microcontroller GPIO due to its guaranteed gate threshold voltage range of 0.4–1.0 V at ID = 250 µA. At VGS = 1.8 V, the device achieves sufficient enhancement for low-current switching, though RDS(on) increases to ~1.3 Ω. For robust 0.4 A operation, VGS ≥ 2.5 V is recommended. The SI1300BDL-T1-GE3 datasheet confirms functionality down to 2.5 V, with characterization data provided at that level.
What is the thermal resistance from junction to ambient for SI1300BDL-T1-GE3 on a standard PCB?
The maximum junction-to-ambient thermal resistance (RthJA) for SI1300BDL-T1-GE3 is 670 °C/W when mounted on a 1" × 1" FR4 board, per the datasheet's thermal resistance ratings table. This value reflects worst-case convection-only cooling and confirms the device's suitability for low-duty-cycle or intermittent operation. The SI1300BDL-T1-GE3 achieves this rating without copper pour or thermal vias, but adding them reduces effective RthJA significantly.
Is SI1300BDL-T1-GE3 suitable for reverse polarity protection?
No, SI1300BDL-T1-GE3 is not suitable for reverse polarity protection because it is an N-channel MOSFET intended for low-side switching. In that configuration, its body diode conducts during reverse input, causing failure. Reverse polarity protection requires a P-channel device in high-side configuration or an N-channel with external gate charge pump. The SI1300BDL-T1-GE3 datasheet does not specify body diode forward voltage under reverse bias stress, confirming its unsuitability for this topology.
What marking code appears on the top of the SI1300BDL-T1-GE3 package?
The SI1300BDL-T1-GE3 is marked with "KE" followed by two alphanumeric characters (e.g., KEAB) representing lot traceability and date code, as shown in the package outline diagram on page 1 of the Vishay datasheet (Document Number: 73557). The "KE" prefix is unique to the Si1300BDL family and distinguishes it from other SC-70 MOSFETs. No additional part number or manufacturer logo is printed on the device surface.
SI1300BDL-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- TrenchFET®
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 400mA (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.5V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 850mOhm @ 250mA, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.84 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 35 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 190mW (Ta), 200mW (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
SI1300BDL-T1-GE3 FAQ
1.How can I place an order for SI1300BDL-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI1300BDL-T1-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 SI1300BDL-T1-GE3 reliable?
The price and inventory of SI1300BDL-T1-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI1300BDL-T1-GE3 is usually 5 days.
3.What payment methods are accepted for SI1300BDL-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI1300BDL-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI1300BDL-T1-GE3?
SI1300BDL-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI1300BDL-T1-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 SI1300BDL-T1-GE3?
For technical support, including SI1300BDL-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI1300BDL-T1-GE3 requirements.
6.How does Aetrix verify that SI1300BDL-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All SI1300BDL-T1-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 SI1300BDL-T1-GE3 meets industry standards.
7.What is the process for return or replacement of SI1300BDL-T1-GE3?
All SI1300BDL-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with SI1300BDL-T1-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 SI1300BDL-T1-GE3 part is unused and in its original packaging.
Return procedure for SI1300BDL-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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