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B72220S0321K503

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B72220S0321K503

B72220S0321K503

$0.30
  • Description：VARISTOR 510V 8KA DISC 20MM
  • Series：StandarD
  • Mfr：EPCOS - TDK Electronics
  • Package：Bulk

SKU:92c76356c912 Category: Brand:

　　
  • Quantity
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Product Detailed Parameters

  • Description：VARISTOR 510V 8KA DISC 20MM
  • Series：StandarD
  • Mfr：EPCOS - TDK Electronics
  • Package：Bulk
  • Maximum AC Volts：320 V
  • Maximum DC Volts：420 V
  • Varistor Voltage (Min)：459 V
  • Varistor Voltage (Typ)：510 V
  • Varistor Voltage (Max)：561 V
  • Current - Surge：8 kA
  • Energy：184J
  • Number of Circuits：1
  • Capacitance @ Frequency：720 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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B72220S0321K503

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 B72220S0321K503 is a component in Varistors, MOVs category typically evaluated for fit, operating limits, and supportability in production. Key specs include Description (VARISTOR 510V 8KA DISC 20MM), Series (StandarD), Packaging (Bulk), Temperature (-40°C ~ 105°C (TA)), and Package/case (Disc 20mm).

Selection Notes
  • For B72220S0321K503, check Number of Circuits (1) against the datasheet conditions and your system-level constraints.
  • Verify the package/case (Disc 20mm) fits your mechanical constraints and assembly process.
  • Verify the operating frequency (720 pF @ 1 kHz) matches your timing and performance targets.
Alternates & Substitutions
  • For Varistors, MOVs, treat alternates as an integration task and validate the assumptions that matter on the assembled system.
  • Begin with the constraints that are hardest to change later: package/case Disc 20mm, mounting Through Hole, packaging Bulk.
  • Confirm compliance/qualification needs (for example RoHS/REACH or grade) before approving a second source for production.
  • Before approving a second source, compare the functional mode matrix and the test conditions behind the marketing headline specs.
FAQ

What operating temperature range does B72220S0321K503 support?
-40°C ~ 105°C (TA)

Which package/case is specified for B72220S0321K503?
Disc 20mm

Can you confirm the Current - Surge for B72220S0321K503?
8 kA

What is the Maximum DC Volts of B72220S0321K503?
420 V

Application Scenarios

When EPCOS - TDK Electronics B72220S0321K503 is used in Varistors, MOVs designs, teams typically start by confirming interfaces, supply rails, operating envelope, and qualification expectations. Protection devices are most effective when chosen with realistic fault models and validated in compliance testing. A coordinated protection strategy improves safety and reduces costly field failures. In telecom and networking, protection reduces downtime from cable faults in always-on racks. In practice, within outdoor systems, surge protection is essential for long cable runs exposed to lightning and ground potential differences. In real deployments, across industrial I/O, coordinated protection defends long field wiring against lightning-induced surges and switching spikes.

Compatibility Advice
  • For production stability, check coordination with upstream supplies and secondary clamps so let-through energy stays bounded during realistic faults. This keeps qualification evidence reproducible later.
Project Fit
  • A weaker fit when integrating EPCOS - TDK Electronics B72220S0321K503 for Varistors, MOVs, wiring inductance and placement constraints prevent a deterministic clamp level, because validation would rely on assumptions that cannot be re-tested later.
B72220S0321K503B72220S0321K503
$0.30
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