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CD143A-SR05 Bourns CD143A-SR05 is a steering (rail-to-rail) TVS diode array offering 5V working peak voltage and 500W peak pulse power. It provides ESD protection for two data lines and Vcc in a compact SOT-143 package.
Mfr Part #:

CD143A-SR05

Available from 7 distributors
Mfr Name: Bourns
Bourns
Bourns CD143A-SR05 is a steering (rail-to-rail) TVS diode array offering 5V working peak voltage and 500W peak pulse power. It provides ESD protection for two data lines and Vcc in a compact SOT-143 package.
Total Stock: 21,955 pcs

CD143A-SR05 Available from 7 distributors

Authorised
Non-Authorised

CD143A-SR05 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Breakdown Voltage (Minimum @ 1 mA)
Capacitance @ Frequency
Capacitance per Data Line @ 0 V, 1 MHz
Clamping Voltage (Maximum @ 1 A)
Clamping Voltage (Maximum @ 28 A (8/20 µs)
Current
ESD Protection (IEC 61000-4-2)
Flammability Rating
Forward Voltage (Typical @ 1 A, 8/20 µs)
Halogen Free
Leakage Current @ VWM
Mounting Type
Number of Unidirectional Channels
Operating Temperature
Operating Temperature Range
Package / Case
Peak Pulse Current (8/20µs)
Peak Pulse Power (tp=8/20 µs)
Power
Power Line Protection
Prop 65
Storage Temperature Range
Supplier Device Package
Type
Unidirectional Channels
Voltage
Weight
Working Peak Voltage

CD143A-SR05 Description

Short technical summary and product information.

The Bourns CD143A-SR05 is a steering (rail-to-rail) TVS diode array designed to protect sensitive electronics from ESD, EFT, and surge events. It is part of the CD143A series and features two unidirectional channels with a working peak voltage of 5V and a breakdown voltage of 6V minimum at 1mA. The device delivers a peak pulse power of 500W (8/20µs) and clamps transients to 20V maximum at 28A peak pulse current.

 

This TVS array provides robust ESD protection exceeding IEC 61000-4-2 requirements, with minimum ratings of ±8kV contact discharge and ±15kV air discharge. It also meets IEC 61000-4-4 (EFT) and IEC 61000-4-5 (Surge) standards. The low leakage current of 5µA at VWM and low capacitance of 10pF per data line at 0V and 1MHz make it suitable for high-speed data interfaces.

 

Typical applications include Ethernet (10/100/1000 Base-T), Firewire, USB ports, portable electronics, and video/graphic cards. The device can protect Vcc and two data lines simultaneously.

 

The CD143A-SR05 is housed in a surface-mount SOT-143 package (JEDEC SOT-143, also referred to as TO-253-4 or TO-253AA). It operates over a temperature range of -55°C to +150°C and is compliant with RoHS3, Halogen Free, and UL 94V-0 flammability rating. The component is lead-free and weighs approximately 39.96mg.

CD143A-SR05 Quick Information

Product Type: TVS Diode Array
Series: CD143A
Canonical Name: Bourns CD143A-SR05 Steering (Rail to Rail) TVS Diode Array
Subcategory: TVS Diodes

CD143A-SR05 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead free as standard

CD143A-SR05 Features

  • 500W peak pulse power at 8/20µs.
  • ESD protection up to ±15kV air discharge.
  • Low capacitance of 10pF per data line.
  • Operating temperature range -55°C to +150°C.
  • Compact SOT-143 surface-mount package.

CD143A-SR05 Applications

  • Protects Ethernet 10/100/1000 Base T ports.
  • Ideal for Firewire and USB interfaces.
  • Used in portable electronics and handheld devices.
  • Suitable for video and graphic card applications.

CD143A-SR05 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the working peak voltage of the CD143A-SR05?

5 V.

What is the breakdown voltage?

6.0 V minimum at 1 mA.

What is the clamping voltage?

9.8 V maximum at 1 A, and 20 V maximum at 28 A (8/20 µs pulse).

What is the peak pulse current rating?

30 A at 8/20 µs waveform.

What package is the CD143A-SR05 available in?

SOT-143 surface-mount package (JEDEC SOT-143, equivalent to TO-253-4, TO-253AA).

What ESD protection level does this device provide?

±8 kV contact discharge and ±15 kV air discharge per IEC 61000-4-2.

What is the capacitance per data line?

10 pF maximum at 0 V and 1 MHz.

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