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1N4738ATR Zener diode from On Semiconductor with 8.2V zener voltage, 1W power dissipation, and ±5% tolerance. Packaged in DO-204AL (DO-41) axial through-hole.
Mfr Part #:

1N4738ATR

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode from On Semiconductor with 8.2V zener voltage, 1W power dissipation, and ±5% tolerance. Packaged in DO-204AL (DO-41) axial through-hole.
✓ Total Stock: 26,620 pcs

1N4738ATR 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
25,020 pcs
On Request
25020 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
1,600 pcs
On Request
1600 pcs On Request 1 On Request On Request On Request On Request On Request
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1N4738ATR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Operating Temperature
Package / Case
Power
Power Dissipation
Supplier Device Package
Tape & Reel
Tolerance
Voltage
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1N4738ATR Description

Short technical summary and product information.

The 1N4738ATR is a Zener diode manufactured by On Semiconductor, designed for voltage regulation and reference applications. It features a nominal Zener voltage of 8.2V with a tolerance of ±5%, and can dissipate up to 1W of power.

 

Key electrical characteristics include a maximum impedance (Zzt) of 4.5Ω and a reverse leakage current of 10µA at 6V. The device operates over a wide temperature range from -65°C to 200°C, ensuring reliable performance in harsh environments.

 

The 1N4738ATR is housed in a DO-204AL (DO-41) axial-lead through-hole package, making it suitable for conventional PCB mounting. This standard package simplifies integration into both new designs and legacy circuits.

1N4738ATR Quick Information

Product Type: Zener Diode
Canonical Name: Zener Diode 8.2V, 1W, ±5%, DO-41
Subcategory: Single Zener Diode

1N4738ATR Compliance

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

1N4738ATR Features

  • 8.2V zener voltage with ±5% tolerance.
  • 1W power dissipation capability.
  • Low impedance of 4.5Ω maximum.
  • Wide operating temperature -65°C to 200°C.
  • Through-hole DO-41 axial package.

1N4738ATR Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection for sensitive devices.
  • Reference voltage in power supply designs.
  • Used in clamping and limiting circuits.

1N4738ATR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N4738ATR?

The Zener voltage is 8.2 V with a tolerance of ±5%.

What package does the 1N4738ATR use?

The device is available in DO-204AL, DO-41, Axial through-hole package.

What is the maximum power dissipation of the 1N4738ATR?

The maximum power dissipation is 1 W.

What is the operating temperature range?

The operating temperature range is -65°C to 200°C.

What is the reverse leakage current at 6V?

The reverse leakage current is 10 µA at 6 V.

What is the maximum impedance (Zzt)?

The maximum impedance (Zzt) is 4.5 Ω.

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