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1KSMB39CA 1KSMB39CA is a 1000W TVS diode from Littelfuse Inc. It features 33.3V reverse standoff voltage and 53.9V clamping voltage in a surface mount DO-214AA package.
Mfr Part #:

1KSMB39CA

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
1KSMB39CA is a 1000W TVS diode from Littelfuse Inc. It features 33.3V reverse standoff voltage and 53.9V clamping voltage in a surface mount DO-214AA package.
Total Stock: 937 pcs

1KSMB39CA Available from 2 distributors

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860 pcs
860 pcs On Request 1 On Request On Request 15+ On Request On Request
Non-Authorised Inventory information
77 pcs
77 pcs On Request 1 On Request On Request On Request On Request On Request

1KSMB39CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Clamping Voltage
Current
Halogen Free
Mounting Type
Operating Temperature
Package / Case
Peak Pulse Current
Peak Pulse Power
Power
Power Line Protection
Response Time (Typical)
Reverse Standoff Voltage
Storage Temperature
Supplier Device Package
Termination Finish
Type
Voltage

1KSMB39CA Description

Short technical summary and product information.

The Littelfuse 1KSMB39CA is a bidirectional Zener TVS diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It offers a peak pulse power rating of 1000W (10/1000μs waveform) with a reverse standoff voltage of 33.3V and a clamping voltage of 53.9V at 18.6A peak pulse current. The device features a fast response time of less than 1.0ps from 0V to breakdown voltage, making it effective for high-speed transient suppression.

 

This TVS diode is suitable for general purpose applications including I/O interfaces, VCC bus protection, and data lines in telecom, computer, industrial, and consumer electronics. It is designed for surface mount assembly and is housed in a compact DO-214AA (SMB) package, which optimizes board space. The operating temperature range is -55°C to 150°C (junction).

 

The 1KSMB39CA is compliant with RoHS and halogen free requirements, and features matte tin lead-free plating. It is also characterized for IEC 61000-4-2 ESD protection (30kV air/contact) and IEC 61000-4-4 EFT protection. The plastic package is rated V-0 for flammability, and the device meets MSL level 1 per J-STD-020.

1KSMB39CA Quick Information

Product Type: TVS Diode
Series: 1KSMB
Canonical Name: 1KSMB39CA — TVS Diode, 33.3V Standoff, 53.9V Clamping, 1000W, DO-214AA
Subcategory: Zener TVS

1KSMB39CA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 - Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free E3

1KSMB39CA Features

  • 1000W peak pulse power capability.
  • 33.3V reverse standoff voltage.
  • 53.9V clamping voltage at 18.6A.
  • Fast response time <1.0ps.
  • Surface mount DO-214AA (SMB) package.

1KSMB39CA Applications

  • Protection of I/O interfaces and VCC bus.
  • Ideal for telecom and computer equipment.
  • General purpose transient voltage protection.
  • ESD protection for data lines per IEC 61000-4-2.
  • Suitable for consumer and industrial electronics.

1KSMB39CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of 1KSMB39CA?

The reverse standoff voltage is 33.3V.

What is the clamping voltage?

The clamping voltage is 53.9V at 18.6A peak pulse current.

What is the peak pulse current rating?

The peak pulse current is 18.6A.

What package is the 1KSMB39CA available in?

It is available in a DO-214AA (SMB) surface mount package.

What is the response time of this TVS diode?

The typical response time is less than 1.0ps from 0V to breakdown voltage.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C (junction).

What are typical applications for 1KSMB39CA?

General purpose protection of I/O interfaces, VCC bus, telecom, computer, and consumer electronics.

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