DIGITRON SEMICONDUCTORS
1N5221 - 1N5281
ELECTRICAL CHARACTERISTICS @ 25°C
Nominal
Zener
Voltage
V
Z
@ I
ZT
Volts
100
110
120
130
140
150
160
170
180
190
200
Test
Current
I
ZT
mA
Max Zener Impedance
A&B Suffix Only
(2)
Z
ZT
@
I
ZK
=0.25mA
Ohms
2600
3000
4000
4500
4500
5000
5500
5500
6000
6500
7000
Max Reverse Leakage Current
A, B, & D Suffix
Only
I
R
V
R
µA
@
Volts
A
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
72
80
86
94
101
108
116
123
130
137
144
B,C&D
76
84
91
99
106
114
122
129
137
144
152
10
10
10
10
10
10
10
10
10
10
10
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
Non Suffix
I
R
@ V
R
Used For
Suffix A
µA
Max Zener Voltage
Temp. Coeff.
(A&B Suffix Only)
SILICON ZENER DIODES
Part Number
(1)
Z
ZT
@ I
ZT
Ohms
500
750
900
1100
1300
150
170
190
2200
2400
2500
α
VZ
(%/°C)
(3)
1N5271
1N5272
1N5273
1N5274
1N5275
1N5276
1N5277
1N5278
1N5279
1N5280
1N5281
1.3
1.1
1.0
0.95
0.90
0.85
0.80
0.74
0.68
0.66
0.65
NOTE 1: The electrical characteristics are measured after allowing the device to stabilize for 20 seconds when mounted with a 3/8” minimum lead length from the case.
NOTE 2: The zener impedance is derived from the 60HZ ac voltage, which results when an ac current having an r.m.s. value equal to 10% of the DC zener current
(I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve, thereby eliminating unstable units.
NOTE 3: Temperature coefficient (α
VZ
). Test conditions for temperature coefficient are a follows:
a.
I
ZT
= 7.5 mA, T
1
= 25°C,
T
2
= 125°C (1N5221A, thru 1N5242A, B.)
b.
I
ZT
= Rated I
ZT
, T
1
= 25°C,
T
2
= 125°C (1N5243A, B thru 1N5281A, B.)
Device to be temperature stabilized with current applied prior to reading breakdown voltage at the specified ambient temperature.
MECHANICAL CHARACTERISTICS
CASE:
MARKING:
POLARITY:
Glass
Body painted, alpha-numeric
Cathode band
Dimensions
1N5221-1N5281 DO-35
Inches
Min
BD
BL
LD
LL
-
-
0.018
1.000
Max
0.080
0.175
0.022
-
Min
-
-
0.457
25.400
Millimeters
Max
2.030
4.440
0.559
-
•
•
•
•
Available Non-RoHS (standard) or RoHS compliant (add PBF suffix).
Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.
Part numbers listed indicate a tolerance of ±20% with guaranteed limits on only, VZ, IR and VF.
Devices with guaranteed limits on all six parameters are indicated by suffix A for ±10% tolerance, suffix B for a ±5%
tolerance, suffix C for a 2% tolerance and suffix D for a 1% tolerance.
144 Market Street
Kenilworth NJ 07033 USA
phone +1.908.245-7200
fax +1.908.245-0555
sales@digitroncorp.com
www.digitroncorp.com
Rev. 20120712
Talking
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