1N5939A 1N5939A is a 39V Zener diode from Microchip Technology. It offers 1.5W power dissipation in a DO-41 axial package.
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1N5939A

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Mfr Name: Microchip Technology
Microchip Technology
1N5939A is a 39V Zener diode from Microchip Technology. It offers 1.5W power dissipation in a DO-41 axial package.
Total Stock: 1,350 pcs

1N5939A Available from 1 distributor

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1N5939A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Impedance (Max) (Zzt)
Lead Style
Military Grade
Mounting Type
Operating Temperature
Package / Case
Power
Power (TA=25°C)
Power - Average (TL≤85°C)
Reverse Leakage Current
Supplier Device Package
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Tolerance
Voltage
Zener Voltage

1N5939A Description

Short technical summary and product information.

The 1N5939A is a 39V Zener diode from Microchip Technology, part of the 1N5913B-5956B series of 1.5 watt glass Zener diodes. It provides a Zener voltage of 39V with a tolerance of ±10% and a maximum impedance of 45Ω. The device can dissipate up to 1.5W steady-state power at a lead temperature of 85°C, or 1.25W at ambient temperature of 25°C. Forward voltage is 1.2V at 200mA, and reverse leakage current is 1µA at 29.7V.

 

The diode is housed in a through-hole DO-204AL (DO-41) axial-lead package, suitable for flexible mounting. It operates over a wide junction temperature range of -65°C to 175°C, with a thermal resistance of 60°C/W junction-to-lead and 120°C/W junction-to-ambient when mounted on FR4 board. The glass hermetically sealed construction offers enhanced reliability. The part is reported as RoHS3 compliant.

1N5939A Quick Information

Product Type: Zener Diode
Series: 1N5913BG-1N5956BG
Canonical Name: 1N5939A Zener Diode, 39V, 1.5W, DO-41
Subcategory: Single Zener Diode

1N5939A Compliance

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

1N5939A Features

  • 39V Zener voltage with ±10% tolerance.
  • 1.5W power dissipation at TL≤85°C.
  • Low maximum impedance of 45Ω.
  • Through-hole DO-41 axial lead package.
  • Operating temperature range -65°C to 175°C.

1N5939A Applications

  • Voltage regulation in power supply circuits.
  • Overvoltage protection in electronic systems.
  • General purpose voltage clamping applications.

1N5939A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of 1N5939A?

The Zener voltage of 1N5939A is 39 V.

What is the tolerance of the Zener voltage?

The tolerance is ±10%.

What is the forward voltage of 1N5939A?

The forward voltage is 1.2 V at 200 mA.

What is the power dissipation of 1N5939A?

The steady-state power dissipation is 1.5 W at TL ≤ 85°C, and 1.25 W at TA = 25°C.

What is the package type of 1N5939A?

The package is DO-204AL (DO-41) with axial leads.

What is the operating temperature range?

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

What is the reverse leakage current?

The reverse leakage current is 1 µA at 29.7 V.

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