1N4749A Fairchild Semiconductor, 1N4749A Datasheet - Page 3

• Manufacturer Part Number: 1N4749A
• Description: DIODE ZENER 24V 1W DO-41
• Manufacturer: Fairchild Semiconductor

Specifications of 1N4749A

• Voltage - Zener (nom) (vz): 24V
• Current - Reverse Leakage @ Vr: 5µA @ 1V
• Tolerance: ±5%
• Power - Max: 1W
• Impedance (max) (zzt): 25 Ohm
• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial
• Operating Temperature: -65°C ~ 200°C
• Zener Voltage: 24 V
• Voltage Tolerance: 5 %
• Zener Current: 10.5 mA
• Power Dissipation: 1 W
• Maximum Reverse Leakage Current: 5 uA
• Maximum Zener Impedance: 25 Ohms
• Maximum Operating Temperature: + 200 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 65 C
• Zener Voltage Vz Typ: 24V
• Power Dissipation Pd: 1W
• Operating Temperature Range: -65°C To +200°C
• Diode Case Style: DO-41
• No. Of Pins: 2
• Filter Terminals: Axial Leaded
• Zener Voltage Vz Max: 25.2V
• Rohs Compliant: Yes
• Breakdown Voltage: 24V
• Diode Type: Zener
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Forward (vf) (max) @ If: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1N4728A - 1N4758A Rev. H3
© 2009 Fairchild Semiconductor Corporation
Top Mark Information
General Requirements:
1.0 Cathode Band
2.0 First Line: F - Fairchild Logo
3.0 Second Line: Device name - For 1Nxx series: 3
4.0 Third Line: Device name - For 1Nxx series: 5
5.0 Third Line: Device name - For 1Nxx series: 7
6.0 Fourth Line: Date Code - Two Digit - Six Weeks Date Code
7.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).
8.0 Maximum no. of marking lines: 5
9.0 Maximum no. of digits per line: 3
10.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line.
11.0 Marking Font: Arial (Except FSC Logo)
12.0 First character of each marking line must be aligned vertically.
13.0 All device markings must be based on Fairchild device specification.
F
F
47
XY
36
A
Where: X represents the last digit of the calendar year
Y represents the Six weeks numeric code
For BZXyy series: Voltage rating
For BZXyy series: Large Die Identification character
For BZxx series: 4
(Continued)
(the 8th character is the large die identification)
th
th
1
2
3
4
5
th
to 6
to 8
st
nd
rd
th
th
rd
to 6
line: F - Fairchild Logo
line: Device Name - 7
line: Date Code - Two Digit - Six Weeks Date Code
line: Device Name - 5
line: Device Name - 3
th
th
to 4
th
characters of the device name.
characters of the device name.
th
characters of the device name.
characters of the device name.
3
or Large Die identification only for BZXyy series
or Voltage rating for BZXyy series
or 4
th
th
rd
to 6
to 8
to 4
th
to 6
th
th
th
characters of device name for 1Nxx series
characters of device name for 1Nxx series
characters of device name for 1Nxx series
th
characters for BZXyy series
www.fairchildsemi.com