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1N914 Glass Axial Switching Diode Datasheet PDF Download

Author: Irene
Date: 16 Feb 2022
 1351
1n914 vs 1n4148

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1N914ATR 1N914ATR Company:ON Semiconductor Remark:DIODE GEN PURP 100V 200MA DO35 Package:DO-204AH, DO-35, Axial
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1N914BWS 1N914BWS Company:ON Semiconductor Remark:DIODE GEN PURP 75V 150MA SOD323F Package:SC-90, SOD-323F
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1N914BWT 1N914BWT Company:ON Semiconductor Remark:DIODE GEN PURP 75V 200MA SOD523F Package:SC-79, SOD-523F
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Catalog

Description

Features

Applications / Benefits

Maximum Ratings

Mechanical and Packaging

Symbols & Definitions

Electrical Characteristics

Graphs

Package Dimensions

1N914 Datasheet

1N914 FAQ

 

Description

This 1N914 JEDEC registered switching/signal diode features internal metallurgical bonded construction for military grade products per MIL-PRF-19500/116. This small low capacitance diode, with very fast switching speeds, is hermetically sealed and bonded into a double-plug DO-35 package. It may be used in a variety of very high speed applications including switchers, detectors, transient OR'ing, logic arrays, blocking, as well as low-capacitance steering diodes, etc. Microsemi also offers a variety of other switching/signal diodes.

 

Features

  • JEDEC registered 1N914 number.
  • Hermetically sealed glass construction.
  • Metallurgically bonded.
  • Double plug construction.
  • Very low capacitance.
  • Very fast switching speeds with minimal reverse recoverytimes.
  • JAN, JANTX, and JANTXV qualifications are availableper MIL-PRF-19500/116.
  • RoHS compliant version available (commercial gradeonly).

 

Applications / Benefits

  • High frequency data lines.
  • Small size for high density mounting using flexiblethru-hole leads (see package illustration).
  • RS-232 & RS–422 interface networks.
  • Ethernet 10 base T.
  • Low-capacitance steering diodes.
  • LAN.
  • Computers.

 

Maximum Ratings 

@ 25 ºC unless otherwise stated

Parameters/Test Conditions

Symbol

Value

Unit

Junction and Storage Temperature

TJ & TSTG

-65 to +175

Thermal Resistance Junction-to-Lead (1)

RӨJL

250

℃/W

Thermal Resistance Junction-to-Ambient (2)

RӨJA

325

℃/W

Maximum Breakdown Voltage

V(BR)

100

V

Working Peak Reverse Voltage

VRWM

75

V

Average Rectified Current @ TA = 75 ºC (3)

IO

200

mA

Non-Repetitive Sinusoidal Surge Current (tp = 8.3 ms)

IFSM

2

A (pk)

NOTES:

1.Lead length = 0.375 inch (9.35 mm). See Figure 2 for thermal impedance curves.

2.TA= +75 on printed circuit board (PCB), PCB = FR4 - 0.0625 inch (1.59 mm) 1-layer 1-Oz Cu, horizontal, in still air; pads for axial = 0.092 inch (2.34 mm) diameter, strip = 0.030 inch (0.76 mm) x 1 inch (25.4 mm) long, lead length L ≤ 0.187 inch (≤ 4.75 mm); RӨJAwith a defined PCB thermal resistance condition included, is measured at IO = 200 mA.

3.See Figure 1 for derating.

 

Mechanical and Packaging

  • Case: Hermetically sealed glass package.
  • Terminals: Tin/lead plated or RoHS compliant matte-tin (commercial grade only) over copper clad steel. Solderable per MILSTD-750, method 2026.
  • Polarity: Cathode indicated by band.
  • Marking: Part number.
  • Tape & Reel option: Standard per EIA-296. Consult factory for quantities.
  • Weight: 0.2 grams.

 

Symbols & Definitions

Symbol Definition
IR Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
IO Average Rectified Forward Current: The output current averaged over a full cycle with a 50 Hz or 60 Hz sine-wave input and a 180 degree conduction angle.
trr Reverse Recovery Time: The time interval between the instant the current passes through zero when changing from the forward direction to the reverse direction and a specified decay point after a peak reverse current occurs.
VF Forward Voltage: The forward voltage the device will exhibit at a specified current (typically shown as maximum value).
VR Reverse Voltage: The reverse voltage dc value, no alternating component.
VRWM Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature range excluding all transient voltages (ref JESD282-B). Also sometimes known as PIV.

Electrical Characteristics 

@ 25 ºC unless otherwise noted

FORWARD VOLTAGE VF1  @ IF=10 mA FORWARD VOLTAGE VF2  @ IF=50 mA REVERSE RECOVERY TIME trr (Note 1) FORWARD RECOVERY TIME tfr (Note 2) REVERSE CURRENT IR1 @ 20 V REVERSE CURRENT IR2 @ 75 V REVERSE CURRENT IR3 @ 20 V TA=150℃ REVERSE CURRENT IR4 @ 75 V TA=150℃ CAPACI- TANCE C (Note 3) CAPACI- TANCE C (Note 4)
V V ns ns nA μA μA μA pF pF
0.8 1.2 5 20 25 0.5 35 75 4 2.8

NOTE 1: IF = IR = 10 mA, RL = 100 Ohms.

NOTE 2: IF = 50 mA.

NOTE 3: VR = 0 V, f = 1 MHz, VSIG = 50 mV (pk to pk).

NOTE 4: VR = 1.5V, f = 1 MHz, VSIG = 50 mV (pk to pk).

 

Graphs

Figure 1 – Temperature – Current Derating

Figure 1 – Temperature – Current Derating

 

 

Figure 2 – Thermal Impedance

Figure 2 – Thermal Impedance

 

Package Dimensions

Package Dimensions

NOTES:

1.Dimensions are in inch.

2.Millimeters are given for general information only.

3.Package contour optional within BD and length BL. Heat slugs, if any, shall be included within this cylinder but shall not be subject to minimum limit of BD. The BL dimension shall include the entire body including slugs.

4.Within this zone lead, diameter may vary to allow for lead finishes and irregularities other than heat slugs.

5.In accordance with ASME Y14.5M, diameters are equivalent to Φx symbology.

 

1N914 Datasheet

You can download the datasheet of 1N914 from the link given below:

1N914 Datasheet

1N914 FAQ

What is a 1N914 diode used for?

The 1N914 is a small signal diode which can handle low voltage and low current. The diode can switch at high speed and hence normal used in switching applications and not in rectifier applications.

 

What is a fast switching diode?

The switching diode has the characteristics of fast switching speed, small size, long life, and high reliability. It is widely used in switching circuits, detection circuits, high-frequency and pulse rectification circuits, and automatic control circuits of electronic equipment.

 

What is the switching diode used for?

A switching diode is suitable for switching a small signal of up to 100 mA, acting as a rectifier. In contrast, a rectifier diode is used for AC line rectification (from alternating current to direct current). Switching diodes are designed to handle a voltage of less than tens of volts.

 

How do you identify a glass diode?

To identify a glass diode, observe its coloration and label, and then input its part number into a database. Examine the diode carefully and note the color of the casing and the band. The band color is usually black, though some are white or red.

 

Why are some diodes glass?

Early semiconductor diodes were mostly glass packaged which provided the advantage that they were hermetic and did not depend on passivation of the chip to survive heat and humidity. The glass package also allows a very high operating temperature. Ceramic packaged diodes have also been produced.

 

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