1N4991US The Microchip 1N4991US is a Zener Diode with a nominal Zener Voltage of 24V and a power dissipation of 5W. It is designed for SMD/SMT mounting.
Mfr Part #:

1N4991US

Available from 1 distributors
Mfr Name: MSC
MSC
The Microchip 1N4991US is a Zener Diode with a nominal Zener Voltage of 24V and a power dissipation of 5W. It is designed for SMD/SMT mounting.
✓ Total Stock: 60 pcs
$ Price Range: $0.99

1N4991US Available from 1 distributor

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1N4991US Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Diameter
Forward Voltage
Length
Mounting Style
Power Dissipation
Reverse Current

1N4991US Description

Short technical summary and product information.

The Microchip 1N4991US is a Zener Diode designed for voltage regulation applications. It features a nominal Zener Voltage of 24V with a tolerance of 5% and a power dissipation rating of 5W. The diode operates with a Zener current of 2 uA and a reverse current of 2 uA.

 

This component has a forward voltage of 1.5V. It is specified for a wide operating temperature range, from -65 C to +175 C. The Zener Impedance is 5 Ohms. The dimensions include a diameter of 3.42 mm and a length of 6.1 mm.

 

The 1N4991US is suitable for surface-mount (SMD/SMT) applications and comes in bulk packaging. It is manufactured by Microchip and categorized under Zener Diodes.

 

Key specifications include a Zener Voltage of 24V, Power Dissipation of 5W, and a temperature coefficient of 0.09%/C. The HTS code is 8541100050, CNHTS is 8541100000, Taric is 8541100000, and MXHTS is 85411001.

1N4991US Quick Information

Product Type: Zener Diode
Canonical Name: MSC 1N4991US Zener Diode
Subcategory: Diodes - RF

1N4991US Compliance

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

1N4991US Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

1N4991US Features

  • 24V nominal Zener voltage rating.
  • 5W maximum power dissipation.
  • SMD/SMT mounting style.
  • Wide operating temperature range.
  • Low reverse current of 2 uA.

1N4991US Applications

  • Used in voltage regulation circuits
  • Suitable for surge suppression
  • Ideal for circuit protection
  • Applicable in compact electronic designs

1N4991US FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener Voltage of the 1N4991US?

The nominal Zener Voltage is 24V.

What is the power dissipation rating for the 1N4991US?

The power dissipation is 5W.

What is the mounting type for the 1N4991US?

The mounting style is SMD/SMT.

What is the operating temperature range of the 1N4991US?

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

What is the forward voltage of the 1N4991US?

The forward voltage is 1.5V.

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