1N5221B-LCC3
TOB-LCC
1N5281B-LCC3
MECHANICAL DATA
Dimensions in mm (inches)
ZENER VOLTAGE REGULATOR
DIODE IN HERMETIC CERAMIC
SURFACE MOUNT PACKAGE
FOR HIGH RELIABILITY
APPLICATIONS
1.40 ± 0.15
(0.055 ± 0.006)
5.59 ± 0.13
(0.22 ± 0.005)
0.25 ± 0.03
(0.01 ± 0.001)
0.23
(0.009)
rad.
3
4
2
0.23
(0.009)
1
min.
FEATURES
• Military Screening Options available
1.02 ± 0.20
(0.04 ± 0.008)
2.03 ± 0.20
(0.08 ± 0.008)
1 = CATHODE
2 = N/C
3 = N/C
4 = ANODE
ABSOLUTE MAXIMUM RATINGS
-55 to +175°C
-65 to +175°C
500mW
T
T
P
Operating temperature Range
case
stg
Storage Temperature Range
Power Dissipation T = 25°C
TOT
A
300°C/W
RTH
Thermal resistance (Junction to Ambient)
J-A
ELECTRICAL CHARACTERISTICS @ 25°C
Nominal
Zener Voltage
Vz @ IZT
Test
Current
IZT
Max Zener Impedance
Max Reverse Leakage Current
Max Zener Voltage
Part No.
IR
@
A
VR Volts
B, C & D
Z
ZT @ IZT
Ohms
Temp. Coeff
Z
ZK @ IZK = 0.25mA
Volts
mA
Ohms
A
100
100
75
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
1.9
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
3.5
4.0
5.0
2.4
2.5
2.7
2.8
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
30
30
30
30
29
28
24
23
22
19
17
11
7.0
7.0
5.0
– 0.085
– 0.085
– 0.080
– 0.080
– 0.075
– 0.070
– 0.065
– 0.060
± 0.055
± 0.030
± 0.030
+ 0.038
+ 0.038
+ 0.045
+ 0.050
1N5221
1N5222
1N5223
1N5224
1N5225
1N5226
1N5227
1N5228
1N5229
1N5230
1N5231
1N5232
1N5233
1N5234
1N5235
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
1.9
2.9
3.3
3.8
4.8
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 1/99
SEME-LAB [ SEME LAB ]
