1N4908 SEMICOA, 1N4908 Datasheet
![](/photos/31/41/314165/1n5267bdo35_sml.jpg)
1N4908
Manufacturer Part Number
1N4908
Description
Manufacturer
SEMICOA
Type
Temperature Compensatedr
Datasheet
1.1N4908.pdf
(2 pages)
Specifications of 1N4908
Configuration
Single
Package Type
DO-35
Zener Voltage (typ)
12.8V
Zener Test Current
4mA
Voltage Tolerance
5%
Power Dissipation
500mW
Knee Impedance
50Ohm
Operating Temperature Classification
Military
Rev Curr
15uA
Mounting
Through Hole
Pin Count
2
Operating Temp Range
-65C to 175C
Lead Free Status / Rohs Status
Not Compliant
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500mW @ +50°C
Power Derating: 4 mW / °C above +50°C
REVERSE LEAKAGE CURRENT
l
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise speci½ed.
R
= 15
NUMBER
1N4896
1N4896A
1N4897
1N4897A
1N4898
1N4898A
1N4899
1N4899A
1N4900
1N4900A
1N4901
1N4901A
1N4902
1N4902A
1N4903
1N4903A
1N4904
1N4904A
1N4905
1N4905A
1N4906
1N4906A
1N4907
1N4907A
1N4908
1N4908A
1N4909
1N4909A
1N4910
1N4910A
1N4911
1N4911A
1N4912
1N4912A
1N4913
1N4913A
1N4914
1N4914A
1N4915
1N4915A
JEDEC
NOTE 1 Zener impedance is derived by superimposing on l ZT A 60Hz rms a.c. current equal
NOTE 2 The maximum allowable change observed over the entire temperature range,
NOTE 3 Zener voltage range equals 12.8 volts + 5%.
TYPE
• 12.8 VOLT NOMINAL ZENER VOLTAGE + 5%
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LOW NOISE
• METALLURGICALLY BONDED
• DOUBLE PLUG CONSTRUCTION
µ
A @ 25°C & V
to 10% of l ZT .
per JEDEC standard No.5.
CURRENT
(Note 3)
TEST
l ZT
mA
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
R
= 8Vdc
TEMPERATURE
STABILITY
VOLTAGE
(Note 2)
³V ZT
198
198
198
198
198
mV
96
48
99
19
40
10
20
96
48
99
19
40
10
20
96
48
99
19
40
10
20
96
48
99
19
40
10
20
96
48
99
19
40
10
20
6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841
PHONE (978) 620-2600
WEBSITE: http://www.microsemi.com
TEMPERATURE
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
+25 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
-55 to +100
RANGE
°C
TEMPERATURE
COEFFICIENT
EFFECTIVE
%/°C
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
IMPEDANCE
MAXIMUM
DYNAMIC
(Note 1)
OHMS
Z ZT
400
400
400
400
400
400
400
400
200
200
200
200
200
200
200
200
100
100
100
100
100
100
100
100
50
50
50
50
50
50
50
50
25
25
25
25
25
25
25
25
MAXIMUM
DENSITY
µ V/
NOISE
N D
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
√
Hz
FAX (978) 689-0803
DESIGN DATA
CASE: Hermetically sealed glass
case. DO – 35 outline.
LEAD MATERIAL: Copper clad steel.
LEAD FINISH: Tin / Lead
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION: Any.
1N4915A
1N4896
FIGURE 1
thru
53
Related parts for 1N4908
1N4908 Summary of contents
Page 1
... +25 to +100 1N4905A 2.0 99 1N4906 2.0 19 +25 to +100 1N4906A 2.0 40 1N4907 2.0 10 +25 to +100 1N4907A 2.0 20 1N4908 4.0 96 +25 to +100 1N4908A 4.0 198 1N4909 4.0 48 +25 to +100 1N4909A 4.0 99 1N4910 4.0 19 +25 to +100 1N4910A 4.0 40 1N4911 4.0 10 +25 to +100 1N4911A 4.0 ...
Page 2
... OPERATING CURRENT l ZT (mA) FIGURE 2 1N4900—1N4903 .8 0.5 1.0 OPERATING CURRENT l ZT (mA) 1N4908—1N4911 OPERATING CURRENT l ZT (mA) FIGURE 3 WITH CHANGE IN OPERATING CURRENT 12 1N4904—1N4907 1.5 2.0 1.0 2.0 OPERATING CURRENT l ZT (mA) 1N4912—1N4915 OPERATING CURRENT l ZT (mA) 3.0 ...