1N4743A-T Zener diode with 13V nominal voltage, 1W power dissipation, in DO-41 package. Suitable for voltage regulation and protection circuits.
Mfr Part #:

1N4743A-T

Available from 1 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
Zener diode with 13V nominal voltage, 1W power dissipation, in DO-41 package. Suitable for voltage regulation and protection circuits.
Total Stock: 4,485 pcs
$ Price Range: $0.02 - $0.10

1N4743A-T Available from 1 distributor

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1N4743A-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Case Material
Current
Derating Factor
Flammability Rating
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Operating Temperature
Polarity
Power
Storage Temperature Range
Supplier Device Package
Surge Current (8.3ms)
Tape & Reel
Temperature Coefficient
Terminal Finish
Termination Style
Test Current
Thermal Resistance Junction-to-Ambient
Tolerance
Voltage
Weight
Zener Impedance (Maximum @ IZK = 0.25 mA)
Zener Voltage (Nominal)

1N4743A-T Description

Short technical summary and product information.

The 1N4743A-T is a 13V Zener diode from Diodes Incorporated, designed for 1W power dissipation. It features a nominal Zener voltage of 13V with ±5% tolerance and a test current of 19mA. The diode offers a maximum Zener impedance of 10Ω at IZT and 700Ω at IZK. Reverse leakage current is 5µA at 9.9V. The forward voltage is 1.2V at 200mA. This device is housed in a DO-41 (DO-204AL) glass package with axial leads for through-hole mounting. It is RoHS compliant with lead-free terminal finish (Sn96.5Ag3.5). The operating temperature range is -65°C to 175°C. Thermal resistance is 175°C/W. The diode is not recommended for new designs; the DFLZxx series is suggested as replacement.

1N4743A-T Quick Information

Product Type: Zener Diode
Series: 1N47xxA
Canonical Name: Zener Diode 13V 1W DO-41
Subcategory: Single Zener Diode

1N4743A-T Compliance

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

1N4743A-T Estimated Pricing

Qty Low High
1+ $0.10 $0.10
10+ $0.08 $0.08
100+ $0.04 $0.04
500+ $0.03 $0.03
1,000+ $0.02 $0.02

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

1N4743A-T Features

  • 13V nominal Zener voltage with ±5% tolerance.
  • 1W power dissipation with 6.67 mW/°C derating.
  • Low Zener impedance of 10Ω at IZT.
  • DO-41 glass package for through-hole mounting.
  • RoHS compliant with lead-free finish.

1N4743A-T Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection and clamping.
  • Reference voltage in power supplies.
  • Surge suppression in electronic systems.

1N4743A-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N4743A-T?

The nominal Zener voltage is 13V with ±5% tolerance.

What is the forward voltage of the 1N4743A-T?

The forward voltage is 1.2V maximum at 200mA.

What is the package type of the 1N4743A-T?

The device is housed in a DO-41 (DO-204AL) package.

What is the power dissipation rating of the 1N4743A-T?

The maximum power dissipation is 1W with a derating factor of 6.67 mW/°C above 50°C.

What is the operating temperature range of the 1N4743A-T?

The operating temperature range is -65°C to 175°C.

What is the reverse leakage current of the 1N4743A-T?

The reverse leakage current is 5µA maximum at 9.9V reverse voltage.

Is the 1N4743A-T RoHS compliant?

Yes, the device is RoHS3 compliant with lead-free terminal finish (Sn96.5Ag3.5).

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