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1.5SMC550CA Bidirectional TVS diode from Littelfuse with 495V reverse standoff voltage, 760V clamping, and 1500W peak pulse power in a DO-214AB surface mount package.
Mfr Part #:

1.5SMC550CA

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Bidirectional TVS diode from Littelfuse with 495V reverse standoff voltage, 760V clamping, and 1500W peak pulse power in a DO-214AB surface mount package.
Total Stock: 7,210 pcs

1.5SMC550CA Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
7,000 pcs
7000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
210 pcs
210 pcs On Request 1 On Request On Request On Request On Request On Request

1.5SMC550CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Clamping Voltage
Current
ESD Rating (IEC 61000-4-2)
Halogen Free
Industrial Grade
Lead Style
Maximum Forward Voltage (VF)
Mounting Type
Operating Junction Temperature
Operating Temperature
Package / Case
Peak Forward Surge Current (Ifsm)
Peak Pulse Current (Ipp)
Peak Pulse Power (10/1000us)
Peak Pulse Power (Ppp)
Power
Power Line Protection
Response Time
Reverse Standoff Voltage (Vrwm)
SVHC Present
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Voltage

1.5SMC550CA Description

Short technical summary and product information.

The 1.5SMC550CA is a bidirectional TVS diode from Littelfuse Inc., designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. It features a reverse standoff voltage of 495V and a clamping voltage of 760V, with a peak pulse power dissipation of 1500W (10/1000μs waveform).

 

The device offers excellent clamping capability and low incremental surge resistance. It is rated for a peak pulse current of 2A and has a response time of less than 1.0ps from 0V to breakdown voltage minimum. The 1.5SMC550CA is housed in a DO-214AB (SMC) surface mount package, suitable for automated assembly.

 

This TVS diode is ideal for general purpose protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic applications. It is halogen free and lead-free (Pb-free E3) compliant, with an operating temperature range of -55°C to 150°C.

1.5SMC550CA Quick Information

Product Type: TVS Diode
Series: 1.5SMC
Canonical Name: 1.5SMC550CA Littelfuse Inc. Bidirectional TVS Diode
Subcategory: Bidirectional TVS Diode

1.5SMC550CA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: No

1.5SMC550CA Features

  • 1500W peak pulse power dissipation.
  • 495V reverse standoff voltage.
  • 760V clamping voltage capability.
  • Bidirectional protection in one device.
  • Surface mount DO-214AB package.

1.5SMC550CA Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection circuits.
  • Used in telecom and computer equipment.
  • Ideal for industrial electronic applications.
  • Protects consumer electronics from surges.

1.5SMC550CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5SMC550CA?

495V

What is the clamping voltage of this TVS diode?

760V

What is the peak pulse power rating?

1500W (10/1000μs waveform)

What package is the 1.5SMC550CA available in?

DO-214AB (SMC) surface mount package

Is this a bidirectional or unidirectional device?

Bidirectional

What is the operating temperature range?

-55°C to 150°C (junction)

What is the ESD rating?

30kV air discharge, 30kV contact discharge per IEC 61000-4-2

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