This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.


Thyristor Surge Protection Devices 175V 18A 8-Pin SO N T/R

Ovaga Certification

Brands: STMicroelectronics, Inc

Mfr.Part #: LCP1521SRL

Datasheet: LCP1521SRL Datasheet (PDF)

Package/Case: SOIC-8

Product Type: ESD Suppressors

RoHS Status:

Stock Condition: 2709 pcs, New Original

Add To BOM

Quick Quote

Please submit RFQ for LCP1521SRL or email to us: Email: [email protected], we will contact you within 12 hours.

LCP1521SRL General Description

These devices have been especially designed to protect new high voltage, as well as classical SLICs, against transient overvoltages.Positive overvoltages are clamped by 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -VBATthrough the gate.These components present a very low gate triggering current (IGT) in order to reduce the current consumption on printed circuit board during the firing phase.


  • Programmable transient suppressor
  • Wide negative firing voltage range:
    • VGn = -175 V max.
  • Low dynamic switching voltages:
    • VFP and VDGL
  • Low gate triggering current: IGT = 5 mA max.
  • Peak pulse current: IPP = 40 A (5/310 μs)
  • Holding current: IH = 150 mA min.
  • Benefits:
    • A Trisil is not subject to ageing and provides a fail-safe mode in short circuit for a better protection.
    • Trisils are used to help equipment to meet various standards such as UL60950, IEC 60950 / CSA C22.2, UL1459 and TIA-968-A (formerly FCC part 68)
    • Trisils have UL94 V0 resin approved (Trisils are UL497B approved - file: E136224)


Parameter Value Parameter Value
feature-product-weight-g feature-packaging Tape and Reel
feature-rad-hard feature-pin-count 8
feature-supplier-package SO N feature-standard-package-name1 SO
feature-cecc-qualified No feature-esd-protection Yes
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc No feature-svhc-exceeds-threshold No
Series LCP Product Status Active
Current - Peak Pulse (8/20µs) 100 A Current - Peak Pulse (10/1000µs) 30 A
Current - Hold (Ih) 150 mA Number of Elements 1
Capacitance 35pF Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) Supplier Device Package 8-SOIC
Base Product Number LCP1521


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

Processing Time:Shipping fee depend on different zone and country.


Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US$0.00 banking fee.
Money Gram Money Gram charge US$0.00 banking fee.


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Datasheet PDF

Preliminary Specification LCP1521SRL PDF Download

We provide high quality products, thoughtful service and after sale guarantee

  • Product

    We have rich products, can meet your various needs.

  • quantity

    Minimum order quantity starts from 1pcs.

  • shipping

    Lowest international shipping fee starts from $0.00

  • guarantee

    365 days quality guarantee for all products

Ratings and Reviews

Please rate the product !
Please enter a comment

Please submit comments after logging into your account.



  • STDP2600


    STMicroelectronics, Inc

    Video Converter IC I2C, SPI HDMI 1.4 81-BGA (8x8) ...

  • EMIF04-1005M8


    STMicroelectronics, Inc

    EMI Filter Low Pass RC-Circuit Flat Style SMD T/R

  • EMIF03-SIM02M8


    STMicroelectronics, Inc

    RC (Pi) EMI Filter 2nd Order Low Pass 3 Channel R ...

  • HSP062-2M6


    STMicroelectronics, Inc

    ESD Suppressors / TVS Diodes 2-Line ESD Prot 4.6 G...

  • HSP061-2N4


    STMicroelectronics, Inc

    ESD Suppressor Diode Array Uni-Dir 3V 4-Pin UQFN E...

  • EMIF06-1005M12


    STMicroelectronics, Inc

    EMI Filter Low Pass RC-Circuit Flat Style SMD T/R