LS5120B The STMicroelectronics LS5120B is a TRISIL device designed for bidirectional crowbar protection. It features a 120V breakdown voltage and high surge current capability.
Mfr Part #:

LS5120B

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LS5120B is a TRISIL device designed for bidirectional crowbar protection. It features a 120V breakdown voltage and high surge current capability.
✓ Total Stock: 113 pcs
$ Price Range: $2.21

LS5120B 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
68 pcs
68 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
45 pcs
45 pcs On Request 1 On Request On Request On Request On Request On Request

LS5120B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Capacitance

LS5120B Description

Short technical summary and product information.

The LS5120B from STMicroelectronics is a TRISIL device engineered for bidirectional crowbar protection. This component is specifically designed to safeguard telecommunication equipment from transient overvoltages, including those induced by lightning strikes and AC power lines.

 

Key electrical characteristics include a stand-off voltage of 100V and a breakdown voltage of 120V for the LS5120B variant. It boasts a high surge current capability, with a peak pulse current of 100A for a 10/1000 μs waveform and 250A for an 8/20 μs waveform. The device also features a non-repetitive surge peak on-state current of 50A at 20ms.

 

With a holding current of 250mA minimum and a critical rate of rise of on-state current at 100A/μs, the LS5120B ensures robust protection. The junction to ambient thermal resistance is rated at 80°C/W. The device is housed in a DIL8 package.

 

This series complies with various standards, including CCITT K17-K20, VDE 0433, and CNET, making it suitable for demanding protection applications where low series resistance is critical.

LS5120B Quick Information

Product Type: TRISIL Bidirectional Crowbar Protection
Series: LS50xxB
Canonical Name: LS5120B TRISIL Bidirectional Crowbar Protection
Subcategory: Bidirectional Crowbar Protection

LS5120B Compliance

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

LS5120B Estimated Pricing

Qty Low High
1+ $2.21 $2.21

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

LS5120B Features

  • Bidirectional crowbar protection.
  • 120V breakdown voltage.
  • 100A peak pulse current (10/1000 μs).
  • Protects telecommunication equipment.
  • DIL8 package.

LS5120B Applications

  • Telecommunication line protection.
  • AC power line transient suppression.
  • Lightning surge protection.
  • Protection for exposed equipment.
  • Low series resistance applications.

LS5120B FAQs

5 frequently asked questions generated from this part’s specifications.
What is the breakdown voltage of the LS5120B?

The breakdown voltage for the LS5120B is 120V minimum.

What is the peak pulse current capability of the LS5120B?

The LS5120B has a peak pulse current capability of 100A for a 10/1000 μs waveform and 250A for an 8/20 μs waveform.

What is the holding current for the LS5120B?

The holding current for the LS5120B is a minimum of 250mA.

What is the operating temperature range for the LS5120B?

The storage and operating junction temperature range is -40°C to 150°C.

What package type is the LS5120B supplied in?

The LS5120B is supplied in a DIL8 package.

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