SZMMBZ18VALT1G The SZMMBZ18VALT1G is a dual Zener TVS diode from On Semiconductor, offering 25V clamping voltage and 40W peak pulse power. It is AEC-Q101 qualified for automotive applications and housed in a surface-mount SOT-23-3 package.
Mfr Part #:

SZMMBZ18VALT1G

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The SZMMBZ18VALT1G is a dual Zener TVS diode from On Semiconductor, offering 25V clamping voltage and 40W peak pulse power. It is AEC-Q101 qualified for automotive applications and housed in a surface-mount SOT-23-3 package.
Total Stock: 62,984 pcs
$ Price Range: $0.04 - $0.25

SZMMBZ18VALT1G Available from 3 distributors

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61,020 pcs
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1,000 pcs
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964 pcs
964 pcs On Request 1 On Request On Request On Request On Request On Request

SZMMBZ18VALT1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q101
Applications
Automotive Grade
Bidirectional Channels
Breakdown Voltage (Nominal)
Current
ESD Rating (HBM)
ESD Rating (IEC 61000-4-2 Contact)
ESD Rating (MM)
Flammability Rating
Maximum Soldering Temperature
Medical Grade
Mounting Type
Operating Temperature
Power
Power Line Protection
Standard Package Quantity
Storage Temperature
Supplier Device Package
Termination Style
Type
Unidirectional Channels
Voltage

SZMMBZ18VALT1G Description

Short technical summary and product information.

The SZMMBZ18VALT1G is a dual monolithic Zener TVS diode designed for transient overvoltage protection. It features a common anode configuration with two unidirectional channels and one bidirectional channel, allowing protection of two separate lines in a single SOT-23-3 package. Key electrical specifications include a maximum clamping voltage of 25 V, peak pulse current of 1.6 A, and peak pulse power of 40 W at 1.0 ms. The device has a nominal breakdown voltage of 18 V.

 

This TVS diode is rated for ESD protection up to 30 kV contact discharge per IEC 61000-4-2 Level 4, and meets Class 3B (16 kV) HBM and Class C (400 V) MM standards. It is designed for automotive applications, indicated by the SZ prefix, and is AEC-Q101 qualified and PPAP capable. The part is Pb-free and RoHS compliant, with a flammability rating of UL 94 V-0.

 

The device is surface-mount in a SOT-23-3 (TO-236) package, suitable for high-density board assembly. It can withstand a maximum soldering temperature of 260°C for 10 seconds. Standard packaging is on 7-inch reels of 3,000 units (T1 suffix) or 13-inch reels of 10,000 units (T3 suffix).

SZMMBZ18VALT1G Quick Information

Product Type: TVS Diode
Series: SZMMBZxxxALT1G
Canonical Name: On Semiconductor SZMMBZ18VALT1G Dual Zener TVS Diode, 25V Clamping, 40W Peak Power, SOT-23-3
Subcategory: Zener TVS Diode

SZMMBZ18VALT1G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

SZMMBZ18VALT1G Estimated Pricing

Qty Low High
1+ $0.25 $0.25
10+ $0.15 $0.15
100+ $0.10 $0.10
500+ $0.07 $0.07
1,000+ $0.06 $0.06
3,000+ $0.05 $0.05
6,000+ $0.04 $0.04

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

SZMMBZ18VALT1G Features

  • Dual Zener TVS diode in SOT-23-3 package.
  • Maximum clamping voltage of 25 V.
  • Peak pulse power 40 W at 1.0 ms.
  • ESD protection up to 30 kV contact.
  • AEC-Q101 qualified for automotive use.

SZMMBZ18VALT1G Applications

  • Transient overvoltage protection for sensitive electronics.
  • ESD protection for I/O lines in automotive systems.
  • Protection of two lines in one compact package.
  • Suitable for high-density board layouts.

SZMMBZ18VALT1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the clamping voltage of the SZMMBZ18VALT1G?

Maximum clamping voltage is 25 V.

What is the peak pulse current rating?

Maximum peak pulse current is 1.6 A.

What is the peak pulse power rating?

Maximum peak pulse power is 40 W at 1.0 ms.

What is the breakdown voltage?

Nominal breakdown voltage is 18 V (inferred from part number).

What is the package type?

SOT-23-3 (TO-236) surface-mount package.

Is this device AEC-Q101 qualified?

Yes, due to the SZ prefix for automotive applications, it is AEC-Q101 qualified and PPAP capable.

What ESD ratings does it have?

±30 kV contact discharge per IEC 61000-4-2, 16 kV HBM, and 400 V MM.

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