1N5221B-LCC3
TOB-LCC
1N5281B-LCC3
MECHANICAL DATA
Dimensions in mm (inches)
5.59 ± 0.13
(0.22 ± 0.005)
0.25 ± 0.03
(0.01 ± 0.001)
1.40 ± 0.15
(0.055 ± 0.006)
0.64 ± 0.08
(0.025 ± 0.003)
0.23 rad.
(0.009)
3
2
1.27 ± 0.05
(0.05 ± 0.002)
ZENER VOLTAGE REGULATOR
DIODE IN HERMETIC CERAMIC
SURFACE MOUNT PACKAGE
FOR HIGH RELIABILITY
APPLICATIONS
0.23 min.
(0.009)
3.81 ± 0.13
(0.15 ± 0.005)
4
1
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
T
case
T
stg
P
TOT
R
THJ-A
Operating temperature Range
Storage Temperature Range
Power Dissipation T
A
= 25°C
Thermal resistance (Junction to Ambient)
-55 to +175°C
-65 to +175°C
500mW
300°C/W
ELECTRICAL CHARACTERISTICS
@ 25°C
Nominal
Zener Voltage
Test
Current
I
ZT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Max Zener Impedance
Z
ZT
@ I
ZT
Ohms
30
30
30
30
29
28
24
23
22
19
17
11
7.0
7.0
5.0
Max Reverse Leakage Current
Max Zener Voltage
I
R
m
A
Part No.
V
z
@ I
ZT
Volts
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
Z
ZK
@ I
ZK
= 0.25mA
Ohms
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
@
A
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
1.9
1.9
2.9
3.3
3.8
4.8
V
R
Volts
B, C & D
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
Temp. Coeff
1N5221
1N5222
1N5223
1N5224
1N5225
1N5226
1N5227
1N5228
1N5229
1N5230
1N5231
1N5232
1N5233
1N5234
1N5235
100
100
75
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
– 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
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
1N5221B-LCC3
TOB-LCC
1N5281B-LCC3
ELECTRICAL CHARACTERISTICS
@ 25°C continued
Nominal
Zener Voltage
Test
Current
I
ZT
mA
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
5.2
5.0
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.1
2.0
1.8
1.7
1.5
1.4
1.4
1.3
1.1
1.0
0.95
0.90
0.85
0.80
0.74
0.68
0.66
0.65
Max Zener Impedance
Z
ZT
@ I
ZT
Ohms
6.0
8.0
8.0
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
70
80
93
105
125
150
170
185
230
270
330
370
400
500
750
900
1100
1300
1500
1700
1900
2200
2400
2500
Max Reverse Leakage Current
Max Zener Voltage
I
R
m
A
Part No.
V
z
@ I
ZT
Volts
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
68
75
82
87
91
100
110
120
130
140
150
160
170
180
190
200
Z
ZK
@ I
ZK
= 0.25mA
Ohms
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
900
1000
1100
1300
1400
1400
1600
1700
2000
2200
2300
2600
3000
4000
4500
4500
5000
5500
5500
6000
6500
7000
@
A
5.7
6.2
6.2
6.7
7.6
8.0
8.7
9.4
9.5
10.5
11.4
12.4
13.3
13.3
14.3
16.2
17.1
18.1
20
20
22
24
26
29
31
34
37
41
44
45
49
53
59
65
66
72
80
86
94
101
108
116
123
130
137
144
V
R
Volts
B, C & D
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
10
11
12
13
14
14
15
17
18
19
21
21
23
25
27
30
33
36
39
43
46
47
52
56
62
68
69
76
84
91
99
106
114
122
129
137
144
152
Temp. Coeff
1N5236
1N5237
1N5238
1N5239
1N5240
1N5241
1N5242
1N5243
1N5244
1N5245
1N5246
1N5247
1N5248
1N5249
1N5250
1N5251
1N5252
1N5253
1N5254
1N5255
1N5256
1N5257
1N5258
1N5259
1N5260
1N5261
1N5262
1N5263
1N5264
1N5265
1N5266
1N5267
1N5268
1N5269
1N5270
1N5271
1N5272
1N5273
1N5274
1N5275
1N5276
1N5277
1N5278
1N5279
1N5280
1N5281
3.0
3.0
3.0
3.0
3.0
2.0
1.0
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
+ 0.058
+ 0.062
+ 0.065
+ 0.068
+ 0.075
+ 0.076
+ 0.077
+ 0.079
+ 0.082
+ 0.082
+ 0.083
+ 0.084
+ 0.085
+ 0.086
+ 0.086
+ 0.087
+ 0.088
+ 0.089
+ 0.090
+ 0.091
+ 0.091
+ 0.092
+ 0.093
+ 0.094
+ 0.095
+ 0.095
+ 0.096
+ 0.096
+ 0.097
+ 0.097
+ 0.097
+ 0.098
+ 0.098
+ 0.099
+ 0.099
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
+ 0.110
Prelim. 1/99
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
