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1.5SMC550A 1.5SMC550A is a 1500W unidirectional TVS diode from Littelfuse. It features a 495V reverse standoff voltage and 760V clamping voltage, in a surface-mount DO-214AB package.
Mfr Part #:

1.5SMC550A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
1.5SMC550A is a 1500W unidirectional TVS diode from Littelfuse. It features a 495V reverse standoff voltage and 760V clamping voltage, in a surface-mount DO-214AB package.
Total Stock: 1,838 pcs

1.5SMC550A Available from 1 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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1,838 pcs
1838 pcs On Request 1 On Request On Request On Request On Request On Request

1.5SMC550A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Current - Peak Pulse (10/1000µs)
Halogen Free
Industrial Grade
Mounting Type
Operating Temperature
Package / Case
Power
Power - Peak Pulse
Power Line Protection
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
Voltage - Clamping (Max) @ Ipp
Voltage - Reverse Standoff (Typ)

1.5SMC550A Description

Short technical summary and product information.

The 1.5SMC550A is a 1500W peak pulse power unidirectional TVS diode from Littelfuse Inc. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events, as featured in the 1.5SMC series. The device offers a reverse standoff voltage of 495V and a clamping voltage of 760V at a peak pulse current of 2A (10/1000μs waveform). It is a Zener-type transient suppressor suitable for general purpose applications in telecom, computer, industrial, and consumer electronics. The part is surface mountable in a DO-214AB (SMC) package and operates over a temperature range of -55°C to 150°C. It is rated for 1500W peak pulse power at 10/1000μs waveform with a duty cycle of 0.01%. The device is RoHS3 compliant, halogen free, and lead-free (Pb-free E3). Design considerations include low incremental surge resistance and typical IR less than 1μA when VBR min > 12V.

1.5SMC550A Quick Information

Product Type: TVS Diode
Series: 1.5SMC
Canonical Name: 1.5SMC550A Unidirectional Zener TVS Diode
Subcategory: Unidirectional Zener TVS Diode

1.5SMC550A Compliance

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

1.5SMC550A Features

  • 1500W peak pulse power capability.
  • 495V reverse standoff voltage rating.
  • 760V clamping voltage at 2A.
  • Surface mount DO-214AB package.
  • Unidirectional Zener TVS protection.

1.5SMC550A Applications

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

1.5SMC550A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5SMC550A?

495V.

What is the clamping voltage of the 1.5SMC550A?

760V at 2A peak pulse current.

What is the peak pulse power rating of the 1.5SMC550A?

1500W (10/1000μs waveform).

What is the peak pulse current of the 1.5SMC550A?

2A (10/1000μs).

What package is the 1.5SMC550A available in?

DO-214AB (SMC) surface mount package.

Is the 1.5SMC550A RoHS compliant?

Yes, RoHS3 Compliant (unverified).

What is the operating temperature range of the 1.5SMC550A?

-55°C to 150°C.

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