Mfr Part #:

1N4738A

The 1N4738A is a Zener diode from Micro Commercial Co featuring an 8.2V nominal voltage and 1W power rating. It is housed in a through-hole DO-41G package.

✓ Total Stock: 240 pcs

$ Price Range: $0.02

1N4738A Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Bristol Electronics ✓ Non-Authorised Inventory information	240 pcs On Request	240 pcs	On Request	1	On Request	On Request	2026-02-25 06:16:38	On Request	On Request

1N4738A Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Diodes Incorporated
Lead Style	Axial
Mounting Type	Through Hole
Operating Temperature	-65°C ~ 200°C
Storage Temperature	-65°C ~ 200°C
Tolerance	±5%

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1N4738A Description

Short technical summary and product information.

The 1N4738A is a Zener diode manufactured by Micro Commercial Co. It offers a nominal Zener voltage of 8.2V with a tolerance of ±5%. The diode has a maximum power dissipation rating of 1W and an impedance of 4.5 Ohms at its test condition.

This component features a low reverse leakage current of 10 µA at 6V and a maximum forward voltage of 1.2V at 200 mA. It operates within a temperature range of -65°C to 200°C.

The 1N4738A is designed for through-hole mounting and comes in a DO-204AL, DO-41, Axial package. Its specifications make it suitable for voltage regulation applications.

1N4738A Quick Information

Product Type: Zener Diode

Series: 1N47xx

Canonical Name: 1N4738A Zener Diode

Subcategory: Single Zener Diodes

1N4738A Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

1N4738A Estimated Pricing

Qty	Low	High
1+	$0.02	$0.02

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

1N4738A Features

8.2V nominal Zener voltage.
1W maximum power dissipation.
±5% voltage tolerance.
Low reverse leakage current.
Through-hole mounting package.

1N4738A Applications

Voltage regulation in power supplies.
Reference voltage for analog circuits.
Overvoltage protection in low-power systems.
Clamping and limiting applications.

1N4738A FAQs

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

What is the nominal Zener voltage of the 1N4738A?

The nominal Zener voltage is 8.2V.

What is the voltage tolerance of the 1N4738A?

The tolerance is ±5%.

What is the maximum power dissipation of the 1N4738A?

The maximum power dissipation is 1W.

What is the impedance of the 1N4738A?

The maximum impedance is 4.5 Ohms.

What is the forward voltage of the 1N4738A?

The maximum forward voltage is 1.2V at 200 mA.

What is the operating temperature range of the 1N4738A?

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

What package does the 1N4738A come in?

The package is DO-204AL (DO-41) axial lead, through-hole mount.

1N4738A Alternate Parts

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