SZSL15T1G SZSL15T1G is an AEC-Q101 qualified, 300W unidirectional TVS diode from onsemi (SL05T1G series) offering 15V reverse standoff voltage and 30V clamping. Housed in a surface-mount SOT-23-3 package.

This device integrates a compensating diode for ultra-low capacitance (3.5 pF typical), making it suitable for high-speed interface protection. It meets IEC 61000-4-2 ESD (±8 kV contact, ±16 kV air), IEC 61000-4-4 EFT, and IEC 61000-4-5 lightning surge standards. The Zener design provides fast response for transient overvoltage events on signal and data lines.
Mfr Part #:

SZSL15T1G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
SZSL15T1G is an AEC-Q101 qualified, 300W unidirectional TVS diode from onsemi (SL05T1G series) offering 15V reverse standoff voltage and 30V clamping. Housed in a surface-mount SOT-23-3 package. This device integrates a compensating diode for ultra-low capacitance (3.5 pF typical), making it suitable for high-speed interface protection. It meets IEC 61000-4-2 ESD (±8 kV contact, ±16 kV air), IEC 61000-4-4 EFT, and IEC 61000-4-5 lightning surge standards. The Zener design provides fast response for transient overvoltage events on signal and data lines.
Total Stock: 23,600 pcs
$ Price Range: $0.17 - $0.79

SZSL15T1G Available from 1 distributor

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SZSL15T1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC-Q101
AEC-Q101 Qualified
Applications
Capacitance @ Frequency
Current
EFT (IEC 61000-4-4)
ESD Air Discharge
ESD Contact Discharge
Flammability Rating
Halogen Free
Lead Finish
Lightning (IEC 61000-4-5)
Mounting Type
Operating Temperature
Power
Power Dissipation (Nominal @ Alumina substrate, TA=25 °C)
Power Dissipation (Nominal @ FR -5 board, TA=25 °C)
Power Line Protection
Reverse Standoff Voltage (Vrwm)
Soldering Temperature (Maximum)
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance (Junction to Ambient) (Nominal @ Alumina substrate)
Thermal Resistance (Junction to Ambient) (Nominal @ FR -5 board)
Type
Unidirectional Channels
Voltage

SZSL15T1G Description

Short technical summary and product information.

The onsemi SZSL15T1G is a 300 W peak pulse power (8/20 µs) unidirectional Zener TVS diode designed for ESD and surge protection on high-speed digital interfaces. Its integrated compensating diode reduces typical capacitance to 3.5 pF at 1 MHz, preserving signal integrity on USB, HDMI, and other high-frequency lines.

 

With a reverse standoff voltage of 15 V and a clamping voltage of 30 V at 5 A (8/20 µs), this device protects downstream circuitry from transients up to ±8 kV contact / ±16 kV air discharge per IEC 61000-4-2. It also handles EFT (40 A) and lightning surge (12 A) per IEC 61000-4-4 and 61000-4-5.

 

The SOT-23-3 surface-mount package (TO-236) is designed for automated assembly and high-density boards. This SZ-prefix variant is AEC-Q101 qualified, PPAP capable, RoHS3 compliant, halogen-free, and rated UL 94 V-0 for flammability.

 

Typical applications include automotive electronics, portable devices, communication systems, and computer peripherals requiring robust ESD protection with minimal line loading.

SZSL15T1G Quick Information

Product Type: TVS Diode (ESD Protection Diode)
Series: SL15
Canonical Name: On Semiconductor SZSL15T1G, 300W, 15V Unidirectional TVS Diode
Subcategory: Unidirectional

SZSL15T1G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SZSL15T1G Estimated Pricing

Qty Low High
1+ $0.79 $0.79
10+ $0.49 $0.49
100+ $0.32 $0.32
500+ $0.26 $0.26
1,000+ $0.23 $0.23
3,000+ $0.17 $0.17

Estimated market price range - modelled values for guidance only, not live distributor offers.

SZSL15T1G Features

  • 300W peak pulse power (8/20 µs).
  • 3.5 pF typical capacitance at 1 MHz.
  • AEC-Q101 qualified for automotive use.
  • ±8 kV contact and ±16 kV air ESD rating.
  • RoHS3 compliant and halogen free.

SZSL15T1G Applications

  • Automotive electronic control unit protection.
  • High-speed data line ESD clamping.
  • Portable device interface protection.

SZSL15T1G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SZSL15T1G?

The reverse standoff voltage is 15 V.

What is the clamping voltage of SZSL15T1G?

30 V at 5 A (8/20 µs pulse).

What package does SZSL15T1G come in?

Surface-mount SOT-23-3 (TO-236, SC-59).

Is SZSL15T1G AEC-Q101 qualified?

Yes, the SZ prefix indicates AEC-Q101 qualification and PPAP capability.

What is the typical capacitance of SZSL15T1G?

3.5 pF at 1 MHz.

What are the ESD ratings for this device?

±8 kV contact discharge and ±16 kV air discharge per IEC 61000-4-2.

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