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B72220S0301K551

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B72220S0301K551

B72220S0301K551

$1.32
  • Description：VARISTOR 470V 8KA DISC 20MM
  • Series：StandarD
  • Mfr：EPCOS - TDK Electronics
  • Package：Tape & Reel (TR),Cut Tape (CT)

SKU:273d5709975a Category: Brand:

　　
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Product Detailed Parameters

  • Description：VARISTOR 470V 8KA DISC 20MM
  • Series：StandarD
  • Mfr：EPCOS - TDK Electronics
  • Package：Tape & Reel (TR),Cut Tape (CT)
  • Maximum AC Volts：300 V
  • Maximum DC Volts：385 V
  • Varistor Voltage (Min)：423 V
  • Varistor Voltage (Typ)：470 V
  • Varistor Voltage (Max)：517 V
  • Current - Surge：8 kA
  • Energy：173J
  • Number of Circuits：1
  • Capacitance @ Frequency：780 pF @ 1 kHz
  • Operating Temperature：-40°C ~ 105°C (TA)
  • Mounting Type：Through Hole
  • Package / Case：Disc 20mm
  • Grade：-
  • Qualification：-
  • Features：-

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B72220S0301K551

How to buy
Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.
Payment Method
Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.
Delivery time
In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.
Freight calculation
Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.
Mode of Transportation
We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.
Return and Refund
Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.

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Buying Guide
Summary

EPCOS - TDK Electronics B72220S0301K551 is used in Varistors, MOVs category where integration and verification need to stay predictable. Key specs include Description (VARISTOR 470V 8KA DISC 20MM), Series (StandarD), Packaging (Tape & Reel (TR), Cut Tape (CT)), Temperature (-40°C ~ 105°C (TA)), and Package/case (Disc 20mm).

Selection Notes
  • For B72220S0301K551, verify the operating temperature range (-40°C ~ 105°C (TA)) and derate as needed in your application.
  • Make sure Maximum AC Volts (300 V) aligns with your design targets and verification plan.
  • Double-check the mounting type (Through Hole) for your intended installation method.
Alternates & Substitutions
  • In Varistors, MOVs designs, define acceptance criteria up front so alternates can be qualified and repeated in production.
  • Start by matching the non-negotiables (package/case Disc 20mm, mounting Through Hole, packaging Tape & Reel (TR), Cut Tape (CT)) and confirm the operating envelope (temperature -40°C ~ 105°C (TA)) before you compare performance.
  • For production substitutions, confirm traceability and documentation expectations so the alternate can be released cleanly.
  • If substitutions are likely, write down the non-negotiables and re-check them when the supply chain changes, not after field failures.
FAQ

Can you confirm the Varistor Voltage (Min) for B72220S0301K551?
423 V

Which operating frequency is specified for B72220S0301K551?
780 pF @ 1 kHz

What is the Maximum DC Volts of B72220S0301K551?
385 V

What packaging is listed for B72220S0301K551?
Tape & Reel (TR), Cut Tape (CT)

Application Scenarios

When sourcing EPCOS - TDK Electronics B72220S0301K551 for Varistors, MOVs, engineers typically focus on de-risking integration and keeping validation repeatable. In real deployments, selection depends on response time, let-through energy, surge rating, leakage, and coordination with upstream supplies and wiring. Protection devices are most effective when chosen with realistic fault models and validated in compliance testing. In real deployments, across telecom and networking, protection reduces downtime from cable faults in always-on racks. In telecom and networking, protection reduces downtime from cable faults and hot-plug events in always-on racks. Across measurement equipment, well-chosen protection prevents input damage while preserving accuracy and low leakage.

Compatibility Advice
  • Across temperature and supply corners, verify placement and return paths so the clamp engages at the entry point instead of after the stress propagates. This keeps qualification evidence reproducible later.
  • To keep validation repeatable, validate surge waveforms and repetition against the real wiring environment so degradation does not become a silent field failure mode on the assembled PCB.
Project Fit
  • Good fit when you can qualify EPCOS - TDK Electronics B72220S0301K551 for Varistors, MOVs integration under realistic load and noise, and you have a defined surge environment and can validate clamping and energy handling with realistic wiring.
  • Poor fit when fusing and coordination are undefined, increasing the chance of unpredictable failures, because the integration depends on constraints that cannot be controlled across builds.
B72220S0301K551B72220S0301K551
$1.32
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