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B72220T2131K101 Varistor, 205V (1mA), 10kA surge, 130V AC max, through-hole radial box package with thermally protected design.
Mfr Part #:

B72220T2131K101

Available from 1 distributors
Mfr Name: TDK Corporation
TDK Corporation
Varistor, 205V (1mA), 10kA surge, 130V AC max, through-hole radial box package with thermally protected design.
Total Stock: 380 pcs

B72220T2131K101 Available from 1 distributor

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B72220T2131K101 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approvals
Capacitance @ Frequency
Clamping Voltage @ 100 A
Climatic Category
Coating
Current
Delivery Mode
Electric Strength
Energy
Features
Housing
Lead Style
Maximum AC Volts
Maximum DC Volts
Mounting Type
Number of Circuits
Operating Temperature
Package / Case
Power Rating (85°C)
Response Time
Storage Temperature
Terminal Finish
Varistor Voltage (Max)
Varistor Voltage (Min)
Varistor Voltage (Typ)
Varistor Voltage @ 1 mA

B72220T2131K101 Description

Short technical summary and product information.

The B72220T2131K101 is a housed metal oxide varistor from TDK Electronics, part of the SIOV AdvanceD series with integrated thermal protection. It features a varistor voltage of 205V typical (184.5V min, 225.5V max at 1mA) and can absorb up to 100J of energy (2ms pulse). The device is rated for a maximum AC voltage of 130V RMS and a DC voltage of 170V. It offers a peak surge current capability of 10kA (8/20µs waveform) with a clamping voltage of 340V maximum at 100A. Response time is less than 25ns. The varistor is housed in a flame-retardant epoxy resin coating and a thermoplastic housing, both meeting UL 94 V-0 standards. Terminals are tinned copper wire.

 

Electrical characteristics include a typical capacitance of 1340pF at 1kHz and a power rating of 1.0W at 85°C. The component is climate category 40/85/56 per IEC 60068-1 and has an electric strength of ≥2.5 kVRMS. Operating temperature range is -40°C to +85°C, with storage from -40°C to +125°C.

 

The device is designed for through-hole mounting in a radial box package with 3 leads. It is delivered in bulk (standard). Typical applications include overvoltage protection in air conditioners, refrigerators, TVs, power meters, inverters, telecom equipment, and transient voltage surge suppressors (TVSS). The thermally protected construction ensures safe operation under abnormal overvoltage conditions.

B72220T2131K101 Quick Information

Product Type: Varistor
Series: ETFV20
Canonical Name: B72220T2131K101 Varistor, 205V (Varistor Voltage), 10kA Surge, Radial Box 3-Lead
Subcategory: Housed ThermoFuse Varistor

B72220T2131K101 Compliance

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

B72220T2131K101 Features

  • Varistor voltage 205V at 1mA test current.
  • Surge current rating 10kA (8/20µs waveform).
  • Thermally protected for overvoltage safety.
  • UL approved epoxy resin coating.
  • Through-hole radial box package with 3 leads.

B72220T2131K101 Applications

  • Protect power supplies from voltage surges.
  • Used in air conditioners and refrigerators.
  • Suitable for telecom equipment protection.
  • Ideal for TVSS and inverter circuits.

B72220T2131K101 FAQs

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

The maximum clamping voltage is 340V at 100A test current.

What is the peak pulse current rating?

The surge current rating is 10kA for an 8/20µs waveform.

What is the package type and mounting style?

The varistor is in a Radial, Box - 3 Lead package with through-hole mounting.

What is the varistor voltage at 1mA?

The varistor voltage at 1mA is 184.5V minimum, 205V typical, and 225.5V maximum.

What is the operating temperature range?

The operating temperature range is -40°C to +85°C.

What is the maximum AC voltage rating?

The maximum AC voltage (RMS) is 130V.

What is the energy absorption rating?

The energy absorption rating is 100J for a 2ms pulse.

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