11-3
FRONTIER
ELECTRONICS CO., LTD.
500mW ZENER DIODE
FEATURES
! LOW COST
! SMALL SIZE
! GLASS SEALED
MECHANICAL DATA
! CASE︰GLASS CASE
! TERMINALS：AXIAL LEADS,SOLDERABLE PER MIL-STD -202, DO-35
METHOD 208 (GLASS CASE)
! P OLARITY：COLOR BAND DENOTES CATHODE
! MOUNTING POSITION：ANY DIMENSIONS IN INCHES AND (MILLIMETERS)
! WEIGHT：0.13 GRAMS
MAXIM UM RATINGS AN D ELE CTRICAL CHAR ACTERISTI CS
RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE SPECIFIED
STORAGE AND OPERATING TEMPERATURE RANGE -55 TO + 175℃
ELECTRICAL CHARACTERISTIC S (TA=25℃UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES
MAXIMUM ZENER IMPEDANCE MAXIMUM REVERSE
LEAKAGE CURR ENT
JEDEC
TYPE NO
NOMINAL
ZENER
VOLTAGE
VZ@ IZT★
TEST
CURRENT
IZT ZZT @ IZT ZZK AT
IZK=0.25mA
TYPICAL
TEMPERATURE
COEFFICIENT IR TEST
VOLTAGE
SUFFIX B
MAXIMUM
REGULATOR
CURRENT
IZM
VOLTS mA OHMS OHMS % / ℃µAVOLTAGE mA
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
1N5226B
1N5227B
1N5228B
1N5229B
1N5230B
1N5231B
1N5232B
1N5233B
1N5234B
1N5235B
1N5236B
1N5237B
1N5238B
1N5239B
1N5240B
1N5241B
1N5242B
1N5243B
1N5244B
1N5245B
1N5246B
1N5247B
1N5248B
1N5249B
1N5250B
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
1N5256B
1N5257B
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
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
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
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
30
30
30
30
29
28
24
23
22
19
17
11
7
7
5
6
8
8
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
-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
+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
+0.087
+0.089
+0.090
+0.091
+0.091
+0.092
100
100
75
75
50
25
15
10
5
5
5
5
5
5
3
3
3
3
3
3
2
1
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
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
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
191
182
168
162
151
138
126
115
106
97
89
81
76
73
67
61
55
52
50
45
41
38
35
32
30
28
27
25
24
23
21.2
19.1
18.2
16.8
16.2
15.1
13.8
NOTE: SUFFIX〝B〞FOR ±5% ★MEASURD WITH PULSE TP＝40ms
1N5221B
THRU
1N5257B
0.52∅
27.5 MIN
1.9 ∅
3.9
RATINGS AND CHARACTERISTIC CURVES 1N5221B THRU 1N5257B
FIG.1- BREAKDOWN CHARACTERISTICS
mA
50
40
30
20
10
0
5V 10V 15V 20V 25V 30V
1N5252
1N5250
1N5245
1N5242
1N5241
1N5239
1N5235
1N5234
1N5232
1N5231
1N5230
1N5229
1N5228
1N5224
Vz
Iz
FIG.2- POWER ,TEMPERATURE DERATING CURVE
500
400
300
200
100
50 100 150 200 300
Ta (
oC)
Ambient Temperature
Pd(mW)
Power Dissi
p
ation
11-4