Littelfuse Inc.
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
TPSMB91A
詳細を表示 DataSheets

TPSMB91A

Product Overview

Category

The TPSMB91A belongs to the category of transient voltage suppressor (TVS) diodes.

Use

It is used to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Characteristics

  • Fast response time
  • Low clamping voltage
  • High surge current capability

Package

The TPSMB91A is typically available in a DO-214AA (SMB) package.

Essence

The essence of the TPSMB91A lies in its ability to provide robust protection against transient voltage events, thereby safeguarding electronic circuits and components.

Packaging/Quantity

The TPSMB91A is commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Standoff Voltage: 77.8V
  • Breakdown Voltage: 86.4V
  • Maximum Clamping Voltage: 140V
  • Peak Pulse Current: 30A
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The TPSMB91A typically has two pins, with the cathode marked by a line on the body of the diode.

Functional Features

  • Bi-directional clamping capability
  • Low incremental surge resistance
  • High reliability

Advantages and Disadvantages

Advantages

  • Effective protection against transient voltage events
  • Fast response time
  • Wide operating temperature range

Disadvantages

  • Limited peak pulse current compared to some higher-rated TVS diodes
  • Higher clamping voltage than some specialized TVS diodes for specific applications

Working Principles

When a transient voltage event occurs, the TPSMB91A conducts and clamps the voltage to a safe level, diverting the excess energy away from the protected circuitry.

Detailed Application Field Plans

The TPSMB91A is widely used in various electronic systems, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative TVS diode models that can be considered as alternatives to the TPSMB91A include: - SMAJ series - P6KE series - 1.5KE series

In conclusion, the TPSMB91A transient voltage suppressor diode offers effective protection against transient voltage events, making it an essential component in ensuring the reliability and longevity of electronic systems across various industries.

[Word count: 366]

技術ソリューションにおける TPSMB91A の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is TPSMB91A?

    • TPSMB91A is a transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What are the key features of TPSMB91A?

    • The key features of TPSMB91A include a peak pulse power of 600W, low clamping voltage, fast response time, and compatibility with automated placement equipment.

  3. In what applications can TPSMB91A be used?

    • TPSMB91A is commonly used in applications such as power supplies, automotive electronics, industrial controls, and telecommunications equipment to protect against voltage surges.

  4. What is the maximum working voltage of TPSMB91A?

    • The maximum working voltage of TPSMB91A is 77.4V.

  5. How does TPSMB91A provide protection against voltage transients?

    • TPSMB91A suppresses voltage transients by diverting excessive current away from sensitive components and limiting the voltage across the protected circuit.

  6. What is the typical response time of TPSMB91A?

    • The typical response time of TPSMB91A is less than 1 nanosecond.

  7. Can TPSMB91A be used in high-frequency applications?

    • Yes, TPSMB91A is suitable for high-frequency applications due to its fast response time and low capacitance.

  8. Does TPSMB91A require external heat sinking?

    • No, TPSMB91A typically does not require external heat sinking under normal operating conditions.

  9. What are the environmental specifications for TPSMB91A?

    • TPSMB91A is designed to meet industry-standard environmental specifications, including RoHS compliance and moisture sensitivity level (MSL) rating.

  10. Are there any recommended layout considerations when using TPSMB91A?

    • It is recommended to minimize the length of the traces between TPSMB91A and the protected circuit, and to ensure proper grounding and routing to optimize its performance.