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BZX55C18 Zener diode features a power rating of 0.5W and a voltage rating of 18V

ISO14001 ISO9001 DUNS

Brands: STMicroelectronics, Inc

Mfr.Part #: BZX55C18

Datasheet: BZX55C18 Datasheet (PDF)

Package/Case: DO-35

RoHS Status:

Stock Condition: 3,437 pcs, New Original

Product Type: Single Zener Diodes

Warranty: 1 Year Ovaga Warranty - Find Out More


*All prices are in USD

Qty Unit Price Ext Price
50 $0.013 $0.650
500 $0.012 $6.000
1500 $0.011 $16.500
5000 $0.008 $40.000
25000 $0.008 $200.000
50000 $0.008 $400.000

In Stock: 3,437 PCS

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Please submit RFQ for BZX55C18 or email to us: Email: [email protected], we will contact you within 12 hours.

BZX55C18 General Description

Zener Diode 18 V 500 mW ±5% Through Hole DO-35



Parameter Value Parameter Value
Manufacturer: Rectron Product Category: Zener Diodes
RoHS: Details Mounting Style: Through Hole
Package / Case: DO-35-2 Vz - Zener Voltage: 18 V
Voltage Tolerance: 5 % Pd - Power Dissipation: 500 mW
Zener Current: 21 mA Zz - Zener Impedance: 50 Ohms
Minimum Operating Temperature: - 65 C Maximum Operating Temperature: + 175 C
Configuration: Single Test Current: 5 mA
Packaging: Reel Brand: Rectron
Height: 2.29 mm Ir - Maximum Reverse Leakage Current: 100 nA
Ir - Reverse Current: 100 nA Length: 4.44 mm
Product Type: Zener Diodes Factory Pack Quantity: 10000
Subcategory: Diodes & Rectifiers Termination Style: Axial
Voltage Temperature Coefficient: 0.07 %/C Width: 2.29 mm
Unit Weight: 0.005291 oz


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

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Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.5% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US.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

Part points

  • The BZX55C18 is a general-purpose Zener diode with a voltage rating of 18V and a power rating of 500mW. It is typically used for voltage regulation and protection in electronic circuits. This chip is available in a variety of packages and is commonly used in applications such as voltage clamping, voltage stabilization, and overvoltage protection.
  • Equivalent

    The equivalent products of BZX55C18 chip are BZX55C18V, 1N4744A, 1N5996B, and TL431A. These products are all 18V Zener diodes with similar specifications and functions to the BZX55C18 chip.
  • Features

    The BZX55C18 is a Zener diode with a voltage of 18 volts and a power rating of 500mW. It has a tolerance of ±5% and is housed in a DO-35 package. This diode is commonly used for voltage regulation and surge protection in various electronic circuits.
  • Pinout

    The BZX55C18 has a 2-pin count, with a cathode connected to the first pin and an anode connected to the second pin. It is a zener diode with a breakdown voltage of 18V, used for voltage regulation and protection in electronic circuits.
  • Manufacturer

    BZX55C18 is manufactured by Vishay Intertechnology. Vishay Intertechnology is an American manufacturer of electronic components specializing in discrete semiconductors and passive components. They produce a wide range of products including diodes, capacitors, resistors, and inductors used in various industries such as automotive, industrial, and telecommunications.
  • Application Field

    The BZX55C18 is commonly used for voltage regulation in various electronic devices such as power supplies, voltage references, and voltage clamping circuits. It is also utilized in automotive electronics, instrumentation, and telecommunications equipment for stabilizing and limiting voltage levels.
  • Package

    The BZX55C18 chip is a Zener diode packaged in a DO-35 form with a size of approximately 2.4mm in length and 1mm in diameter.

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