P4SMA300A The P4SMA300A from Littelfuse is a unidirectional TVS diode with a reverse stand-off voltage of 256V and clamping voltage of 414V. It offers 400W peak pulse power dissipation in a compact DO-214AC (SMA) surface mount package.
Mfr Part #:

P4SMA300A

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The P4SMA300A from Littelfuse is a unidirectional TVS diode with a reverse stand-off voltage of 256V and clamping voltage of 414V. It offers 400W peak pulse power dissipation in a compact DO-214AC (SMA) surface mount package.
Total Stock: 68,980 pcs
$ Price Range: $0.10 - $0.20

P4SMA300A 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
60,000 pcs
60000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
8,980 pcs
8980 pcs On Request 1 On Request On Request 15+ On Request On Request

P4SMA300A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Halogen Free
Mounting Type
Operating Temperature
Peak Forward Surge Current (Ifsm)
Power
Power Dissipation (PD)
Power Line Protection
Reverse Stand-off Voltage (VRWM)
SVHC Present
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Thermal Resistance Junction to Ambient (RθJA)
Thermal Resistance Junction to Lead (RθJL)
Type
Unidirectional Channels
Voltage

P4SMA300A Description

Short technical summary and product information.

The P4SMA300A is a unidirectional TVS diode from Littelfuse, designed to protect sensitive electronics from voltage transients. It features a reverse stand-off voltage of 256V and a clamping voltage of 414V at a peak pulse current of 1A. The device can handle 400W of peak pulse power (10/1000μs waveform) and has a maximum peak forward surge current of 60A (8.3ms single half sine wave).

 

This TVS diode has a Zener breakdown mechanism with one unidirectional channel. It is not intended for power line protection but is suitable for general purpose applications such as I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

 

The P4SMA300A is housed in a DO-214AC (SMA) surface mount package with a low profile for compact PCB layouts. It supports an operating temperature range of -65°C to 150°C (junction) and has a storage range of -65°C to 175°C. The device is RoHS3 compliant, halogen-free, and has a Pb-free E3 terminal finish with MSL Level 1 unlimited.

P4SMA300A Quick Information

Product Type: TVS Diode
Series: P4SMA
Canonical Name: P4SMA300A TVS Diode, 256V Stand-off, 414V Clamping, DO-214AC
Subcategory: Surface Mount TVS Diodes

P4SMA300A Compliance

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

P4SMA300A Estimated Pricing

Qty Low High
5+ $0.20 $0.20
50+ $0.16 $0.16
150+ $0.14 $0.14
500+ $0.12 $0.12
2,500+ $0.11 $0.11
5,000+ $0.10 $0.10

Estimated market price range - modelled values for guidance only, not live distributor offers.

P4SMA300A Features

  • 256V reverse stand-off voltage rating.
  • 414V clamping voltage at 1A.
  • 400W peak pulse power capability.
  • DO-214AC surface mount package.
  • RoHS3 compliant and halogen free.

P4SMA300A Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection circuits.
  • Used in telecom and computer equipment.
  • Ideal for consumer electronics applications.
  • Protection against lightning-induced surge events.

P4SMA300A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse stand-off voltage (VRWM) of the P4SMA300A?

256V.

What is the clamping voltage (VC) of the P4SMA300A?

414V.

What is the peak pulse power rating of the P4SMA300A?

400W for a 10/1000μs waveform.

What is the peak pulse current (IPP) the P4SMA300A can handle?

1A.

What is the package type of the P4SMA300A?

DO-214AC (SMA) surface mount package.

What is the operating temperature range of the P4SMA300A?

-65°C to 150°C (junction).

What is the peak forward surge current rating of the P4SMA300A?

60A for an 8.3ms single half sine wave.

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