1N5254B Fairchild Semiconductor, 1N5254B Datasheet - Page 3

• Manufacturer Part Number: 1N5254B
• Description: DIODE ZENER 27V 500MW DO-35
• Manufacturer: Fairchild Semiconductor

Specifications of 1N5254B

• Voltage - Zener (nom) (vz): 27V
• Voltage - Forward (vf) (max) @ If: 1.2V @ 200mA
• Current - Reverse Leakage @ Vr: 100nA @ 21V
• Tolerance: ±5%
• Power - Max: 500mW
• Impedance (max) (zzt): 41 Ohm
• Mounting Type: Through Hole
• Package / Case: DO-204AH, DO-35, Axial
• Operating Temperature: -65°C ~ 200°C
• Zener Voltage: 27 V
• Voltage Tolerance: 5 %
• Voltage Temperature Coefficient: 0.089 % / C
• Zener Current: 4.6 mA
• Power Dissipation: 500 mW
• Maximum Reverse Leakage Current: 0.1 uA
• Maximum Zener Impedance: 41 Ohms
• Maximum Operating Temperature: + 200 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 65 C
• Zener Voltage Vz Typ: 27V
• Power Dissipation Pd: 500mW
• Diode Case Style: DO-35
• No. Of Pins: 2
• Breakdown Voltage: 27V
• Diode Type: Zener
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1N5221B - 1N5263B Rev. H2
© 2010 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: 4
4.0 Third Line: Device name - For 1Nxx series: 6
5.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).
6.0 Maximum no. of marking lines: 3
7.0 Maximum no. of digits per line: 2
8.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified
9.0 Marking Font: Arial (Except FSC Logo)
10.0 First character of each marking line must be aligned vertically.
11.0 All device markings must be based on Fairchild device specification.
line.
1N5241B
1N5242B
1N5243B
1N5244B
1N5245B
1N5246B
1N5247B
1N5248B
1N5247B
1N5250B
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
1N5256B
1N5257B
1N5258B
1N5259B
1N5260B
1N5261B
1N5262B
1N5263B
Device
F
22
1B
For BZXyy series: Voltage rating
(Continued)
For BZxx series: 5
Line 1
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
1
2
3
st
nd
rd
th
line: F - Fairchild Logo
line: Device Name - 6
line: Device Name - 4
to 7
th
th
to 6
to 5
th
characters of the device name.
th
3
th
characters of the device name.
characters of the device name.
or Voltage rating for BZXyy series
or 5
Line 2
th
th
th
24
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
25
25
25
26
26
26
26
to 7
to 5
to 6
th
th
th
characters of the device name.
characters of the device name.
characters for BZXyy series
Line 3
1B
2B
3B
4B
5B
6B
7B
8B
9B
0B
1B
2B
3B
4B
5B
6B
7B
8B
9B
0B
1B
2B
3B
www.fairchildsemi.com