CYStech Electronics Corp.
Spec. No. : C326N3
Issued Date : 2003.04.14
Revised Date : 2014.05.07
Page No. : 1/15
ZD52XXBN3 series CYStek Product Specification
Zener Diode Series
ZD52XXBN3
Thermal Characteristics
Characteristics Symbol Max Unit
Total Device Dissipation FR-5 Board
TA=25°C, Derate above 25°C
PD
225
1.8
mW
mW/°C
Total Device Dissipation
Alumina Substrate**TA=25°C, Derate above 25°C
PD
300
2.4
mW
mW/°C
Thermal Resistance Junction to Ambient
RθJA
417
°C/W
Junction and Storage Temperature Tj, Tstg -55 to +150
°C
*FR-5 - 1.0×0.75×0.062 in. **Alumina - 0.4×0.3×0.024 in. 99.5% alumina.
Electrical Characteristic (VF=0.9V Max @IF=10mA for all types.)
Test
Current
Zener
Voltage
ZZK
I
Z=0.25mA
Z
ZT
I
Z=IZT
Max. Reverse
Current
Device
Marking
Code
I
ZT(mA) VZ(V)
(Ω,Max) (Ω,Max)
IR(uA) @VR(V)
ZD5221B 18A 20
2.4 ±5%
1200 30 100 1.0
ZD5222B 18B 20
2.5 ±5%
1250 30 100 1.0
ZD5223B 18C 20
2.7 ±5%
1300 30 75 1.0
ZD5225B 18E 20
3.0 ±5%
1600 29 50 1.0
ZD5226B 8A 20
3.3 ±5%
1600 28 25 1.0
ZD5227B 8B 20
3.6 ±5%
1700 24 15 1.0
ZD5228B 8C 20
3.9 ±5%
1900 23 10 1.0
ZD5229B 8D 20
4.3 ±5%
2000 22 5.0 1.0
ZD5230B 8E 20
4.7 ±5%
1900 19 5.0 2.0
ZD5231B 8F 20
5.1 ±5%
1600 17 5.0 2.0
ZD5232B 8G 20
5.6 ±5%
1600 11 5.0 3.0
ZD5233B 8H 20
6.0 ±5%
1600 7.0 5.0 3.5
ZD5234B 8J 20
6.2 ±5%
1000 7.0 5.0 4.0
ZD5235B 8K 20
6.8 ±5%
750 5.0 3.0 5.0
ZD5236B 8L 20
7.5 ±5%
500 6.0 3.0 6.0
ZD5237B 8M 20
8.2 ±5%
500 8.0 3.0 6.5
ZD5238B 8N 20
8.7 ±5%
600 8.0 3.0 6.5
ZD5239B 8P 20
9.1 ±5%
600 10 3.0 7.0
ZD5240B KF5 20
10 ±5%
600 17 3.0 8.0
ZD5241B 8R 20
11 ±5%
600 22 2.0 8.4
ZD5242B 8S 20
12 ±5%
600 30 1.0 9.1
ZD5243B 8T 9.5
13 ±5%
600 13 0.5 9.9
ZD5244B 8U 9.0
14 ±5%
600 15 0.1 10
SOT-23