DistyParts Icon
P4SMA550A P4SMA550A is a 400W unidirectional TVS diode from Littelfuse Inc. with a working voltage of 495V and clamping voltage of 760V, housed in a surface-mount DO-214AC (SMA) package.
Mfr Part #:

P4SMA550A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
P4SMA550A is a 400W unidirectional TVS diode from Littelfuse Inc. with a working voltage of 495V and clamping voltage of 760V, housed in a surface-mount DO-214AC (SMA) package.
✓ Total Stock: 535 pcs

P4SMA550A Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
535 pcs
On Request
535 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

P4SMA550A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
View Similar Products (0)

P4SMA550A Description

Short technical summary and product information.

The P4SMA550A is a 400W unidirectional TVS diode from Littelfuse Inc., designed to protect sensitive electronic circuits from voltage transients. It features a working voltage of 495V and a clamping voltage of 760V, making it suitable for high-voltage applications.

 

With a peak pulse power rating of 400W (10/1000µs waveform), the device offers fast response time of less than 1.0ps from 0V to breakdown voltage. Typical reverse leakage current is less than 1μA for breakdown voltages above 12V. The diode also meets IEC 61000-4-2 ESD protection up to 30kV (air and contact).

 

The P4SMA550A is housed in a surface-mount DO-214AC (SMA) package, suitable for compact PCB layouts. It operates over a wide temperature range of -65°C to 150°C and is rated MSL 1 for moisture sensitivity. The device is RoHS compliant and halogen-free.

 

Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. The device is ideal for lightning and transient voltage suppression.

P4SMA550A Quick Information

Product Type: TVS Diode
Series: P4SMA
Canonical Name: P4SMA550A TVS Diode, 495V Working, 760V Clamping, 400W, Unidirectional, DO-214AC
Subcategory: Unidirectional TVS Diode

P4SMA550A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: Non-Compliant

P4SMA550A Features

  • 400W peak pulse power capability (10/1000µs).
  • 495V working voltage with 760V clamping.
  • Unidirectional protection for single-line applications.
  • Surface-mount DO-214AC (SMA) package.
  • Fast response time less than 1.0ps.

P4SMA550A Applications

  • Protect I/O interfaces from voltage transients.
  • Suitable for VCC bus protection in telecom equipment.
  • Used in industrial and consumer electronic circuits.
  • Ideal for lightning surge suppression.

P4SMA550A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the working voltage of the P4SMA550A?

495V.

What is the clamping voltage?

760V.

What is the peak pulse power rating?

400W for a 10/1000µs waveform.

What is the peak pulse current?

500 mA (note: this value may be inconsistent with datasheet; actual IPP likely higher).

What package is the P4SMA550A available in?

DO-214AC (SMA) surface-mount package.

Is the P4SMA550A unidirectional or bidirectional?

Unidirectional, with 1 channel.

What is the operating temperature range?

-65°C to 150°C.

Home
Account

Categories