Mfr Part #:

BZX84C18LT3G

Available from 2 distributors

Mfr Name: On Semiconductor

Zener diode from onsemi with nominal 18V breakdown voltage, 250mW power dissipation, in SOT-23-3 surface mount package.

✓ Total Stock: 21,044 pcs

$ Price Range: $0.02 - $0.13

BZX84C18LT3G Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	21,020 pcs On Request	21020 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Braun Electronic Components ✓ Non-Authorised Inventory information	24 pcs On Request	24 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

BZX84C18LT3G Description

Short technical summary and product information.

The BZX84C18LT3G is a Zener diode from onsemi, part of the BZX84CxxxLT3G series, designed for voltage regulation in space-constrained applications. With a nominal Zener voltage of 18V and ±6% tolerance, it provides a stable reference voltage. The device is rated for 250mW power dissipation on FR-4 or FR-5 boards, making it suitable for low-power circuits.

The diode features a maximum Zener impedance of 45Ω at the test current, and a reverse leakage current of 50nA at 12.6V. The forward voltage is 900mV at 10mA. It operates over a junction temperature range of -65°C to 150°C.

Packaged in the standard SOT-23-3 (TO-236) surface mount package, this device is supplied on tape and reel with 10,000 units per reel (LT3G suffix). The package is designed for automated assembly and is compatible with high-density PCB designs.

Typical applications include voltage regulation, overvoltage protection, and reference voltage generation in portable electronics, cellular phones, and other battery-powered devices.

BZX84C18LT3G Quick Information

Product Type: Zener Diode

Series: BZX84CxxxLT3G

Canonical Name: Zener Diode 18V 250mW SOT-23-3 BZX84C18LT3G

Subcategory: Single Zener Diode

BZX84C18LT3G Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Yes

BZX84C18LT3G Estimated Pricing

Qty	Low	High
1+	$0.13	$0.13
10+	$0.12	$0.12
100+	$0.06	$0.06
500+	$0.04	$0.04
1,000+	$0.03	$0.03
2,000+	$0.03	$0.03
5,000+	$0.02	$0.02

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

BZX84C18LT3G Features

18V nominal Zener voltage with ±6% tolerance.
250mW power dissipation on FR-4/FR-5 boards.
Maximum Zener impedance of 45Ω.
SOT-23-3 surface mount package for compact designs.
RoHS compliant and Pb-Free.

BZX84C18LT3G Applications

Ideal for voltage regulation in portable electronics.
Used in overvoltage protection circuits.
Suitable for reference voltage generation.
Designed for high-density PCB assemblies.

BZX84C18LT3G FAQs

7 frequently asked questions generated from this part’s specifications.

What is the Zener voltage of BZX84C18LT3G?

18 V nominal, ±6% tolerance.

What is the power dissipation rating?

250 mW on FR-4 or FR-5 board.

What is the package type?

SOT-23-3 (TO-236).

What is the forward voltage?

900 mV at 10 mA.

What is the operating temperature range?

-65°C to 150°C (junction).

What is the reverse leakage current?

50 nA at 12.6 V.

Is this device RoHS compliant?

Yes, RoHS3 compliant and Pb-Free.

Category	Diodes - Zener - Single
Manufacturer Name	On Semiconductor
Automotive Grade	No
Current	50 nA
Forward Voltage	900 mV
Impedance (Max) (Zzt)	45 Ω
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C (TJ)
Operating Temperature Range	-65°C ~ 150°C (TJ)
Package / Case	TO-236-3, SC-59, SOT-23-3
Power	225 mW
SVHC Present	Not Present
Storage Temperature	-65°C ~ 150°C
Supplier Device Package	SOT-23-3 (TO-236)
Tape & Reel	Tape & Reel
Tolerance	±6%
Voltage	18 V