Taiwan Semiconductor Corporation
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1SMA5948HM2G
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1SMA5948HM2G

Product Overview

Category

The 1SMA5948HM2G belongs to the category of surface mount, unidirectional TVS (transient voltage suppressor) diodes.

Use

It is primarily used for surge protection in electronic circuits and systems to safeguard against transient voltage spikes.

Characteristics

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

Package

The 1SMA5948HM2G is available in a SMA package, which is a surface mount package with a compact footprint.

Essence

The essence of this product lies in its ability to efficiently divert transient voltage spikes away from sensitive electronic components, thereby protecting them from damage.

Packaging/Quantity

It is typically supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Peak Pulse Power: 400W
  • Breakdown Voltage: 48V
  • Maximum Clamping Voltage: 77.4V
  • Operating Temperature Range: -55°C to +150°C
  • Reverse Standoff Voltage: 40.5V
  • Leakage Current: 1µA

Detailed Pin Configuration

The 1SMA5948HM2G features a standard SMA package with two pins for surface mounting onto PCBs.

Functional Features

  • Transient voltage suppression
  • Bidirectional clamping capability
  • High reliability and robustness

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Compact form factor
  • Wide operating temperature range

Disadvantages

  • Limited to unidirectional protection
  • May require additional components for comprehensive surge protection in complex systems

Working Principles

When a transient voltage spike occurs, the 1SMA5948HM2G rapidly conducts, diverting the excess energy away from the protected circuit. This action effectively limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The 1SMA5948HM2G is commonly employed in various applications, including: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • 1SMA5940BT3G
  • 1SMA5941BT3G
  • 1SMA5942BT3G
  • 1SMA5943BT3G
  • 1SMA5944BT3G

These alternative models offer similar surge protection capabilities with variations in breakdown voltages and other specifications.

In conclusion, the 1SMA5948HM2G serves as a crucial component in safeguarding electronic systems from transient voltage events, offering reliable protection and peace of mind for designers and engineers.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 1SMA5948HM2G i tekniska lösningar

  1. What is 1SMA5948HM2G?

    • 1SMA5948HM2G is a high-power, surface-mount transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

  2. What is the maximum peak pulse power of 1SMA5948HM2G?

    • The maximum peak pulse power of 1SMA5948HM2G is 400 watts.

  3. What is the breakdown voltage of 1SMA5948HM2G?

    • The breakdown voltage of 1SMA5948HM2G is 48 volts.

  4. What are the typical applications of 1SMA5948HM2G?

    • Typical applications of 1SMA5948HM2G include protection of electronic equipment such as telecommunication systems, industrial control systems, and automotive electronics from voltage surges and spikes.

  5. What is the operating temperature range of 1SMA5948HM2G?

    • The operating temperature range of 1SMA5948HM2G is -55°C to +150°C.

  6. What is the package type of 1SMA5948HM2G?

    • 1SMA5948HM2G is available in a DO-214AC (SMA) package.

  7. What is the reverse stand-off voltage of 1SMA5948HM2G?

    • The reverse stand-off voltage of 1SMA5948HM2G is 48 volts.

  8. What are the key features of 1SMA5948HM2G?

    • Key features of 1SMA5948HM2G include low clamping voltage, fast response time, and high surge capability.

  9. How does 1SMA5948HM2G provide protection against voltage transients?

    • 1SMA5948HM2G clamps the transient voltage to a safe level and diverts the excessive current away from the protected circuit, thereby providing effective protection.

  10. Can 1SMA5948HM2G be used in automotive applications?

    • Yes, 1SMA5948HM2G is suitable for use in automotive applications where protection against voltage transients is required, such as in vehicle electronics and control systems.