1N5221B - 1N5263B
0.5W Hermetically Sealed Glass Zener Diodes
Pb
RoHS
COMPLIANCE
RoHS
COMPLIANCE
DO-35
Features
Zener voltage range 2.4 to 56 volts
DO-35 package (JEDEC)
Through-hole device type mounting
Hemetically sealed glass
Compression bonded construction
All extermal surface are corrosion
resistant and leads are readily solderable
RoHS compliant
Solder hot dip Tin(Sn) lead finish
Cathode indicated by polarity band
Dimensions is inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25oCambient temperature unless otherwise specified.
Type Number Symbol Value Units
Power Dissipation Pd 500 mW
Forward Voltage @ IF=200mA VF 1.1 V
Operating and Storage Temperature Range TJ, TSTG -65 to + 200 OC
Version: A07
RATINGS AND CHARACTERISTIC CURVES (1N5221B THRU 1N5263B)
Figure 1. Thermal Resistance vs. Lead Length
Figure 2. Typical Change of Working Voltage under Operating
Conditions at Tamb = 25 °C
95 9611
0 5 10 15
0
100
200
300
400
500
20
ll
RthJA - Therm. Resist. Junction Ambient (K/W)
I - Lead Length (mm)
TL = constant
10 15 20
1
10
100
1000
VZ - Voltage Change (mV)
VZ - Z-Voltage (V)25
95 9598
Tj = 25 °C
IZ = 5 mA
05
Figure 3. Typical Change of Working Voltage vs. Junction
Temperature
Figure 4. Total Power Dissipation vs. Ambient Temperature
- 60 60 120 180
0.8
0.9
1.0
1.1
1.2
1.3
V
Ztn
- Relative Voltage Change
T
j
- Junction Temperature (°C) 240
95 9599
0
V
Ztn
= V
Zt
/V
Z
(25 °C)
0
TKVZ = 10 x 10-4/K 8 x 10-4/K
2 x 10-4/K
6 x 10-4/K
4 x 10-4/K
- 4 x 10-4/K
- 2 x 10-4/K
0 120 160
0
100
300
400
500
600
P
tot
- Total Power Dissipation (mW)
Tamb - Ambient Temperature (°C) 200
95 9602
200
80
40
Version: A07
RATINGS AND CHARACTERISTIC CURVES (1N5221B THRU 1N5263B)
Figure 5. Temperature Coefficient of Vz vs. Z-Voltage
Figure 6. Diode Capacitance vs. Z-Voltage
Figure 7. Forward Current vs. Forward Voltage
30
- 5
0
5
10
15
V
Z
- Z-Voltage (V)50
95 9600
40
I
Z
= 5 mA
10 20
0
TK
VZ
- Temperature Coefficient of V
Z
(10
-4
/K)
10 15
0
50
100
150
200
C
D
- Diode Capacitance (pF)
V
Z
- Z-Voltage (V)25
95 9601
20
T
j
= 25 °C
V
R
= 2 V
05
0 0.2 0.4 0.6 0.8
0.001
0.01
0.1
1
10
100
1.0
95 9605
I
F
- Forward Current (mA)
V
F
- Forward Voltage (V)
T
j
= 25 °C
Figure 8. Z-Current vs. Z-Voltage
Figure 9. Z-Current vs. Z-Voltage
Figure 10. Differential Z-Resistance vs. Z-Voltage
820
95 9604
0
20
40
60
80
100
IZ - Z-Current (mA)
P
tot
= 500 mW
T
amb
= 25 °C
046 12
VZ - Z-Voltage (V)
15 20 25 30
0
10
20
30
40
50
I
Z
- Z-Current (mA)
V
Z
- Z-Voltage (V)
35
95 9607
P
tot
= 500 mW
T
amb
= 25 °C
0 5 10 15 20
1
10
100
1000
(Ω)
25
95 9606
Tj = 25 °C
IZ = 1 mA
5 mA
10 mA
V
Z
- Z-Voltage (V)
r
Z
- Differiential Z-Resistance
Version: A07
RATINGS AND CHARACTERISTIC CURVES (1N5221B THRU 1N5263B)
Figure 11. Thermal Response
1
10
100
1000
Z– Thermal Resistance for Pulse Cond. (KW)
thp
t
p
– Pulse Length (ms)
95 9603
10-1 100101102
t
p
/T = 0.5
t
p
/T = 0.2
t
p
/T = 0.1
t
p
/T = 0.05
t
p
/T = 0.02 t
p
/T = 0.01
Single Pulse R
thJA
= 300 K/W
T = T
jm ax –T
amb
i
ZM = (–V
Z
+(V
Z
2
+4r
zj T/Z
th p
)
1/ 2
)/(2r
zj
)
x
Version: A07
ELECTRICAL CHARACTERISTICS
(Ratings at TA=25oC ambient temperature unless otherwise specified).
Device Vz @ Izt Current ZZT @ IZT ZZK @IZK=0.25m
A
IR@ VR
V
oltage IZT Ω ΩuA
V
R
Nominal (mA) Max. Max. Max. (Volts)
1N5221B 2.4 20 30 1200 100 1.0
1N5222B 2.5 20 30 1250 100 1.0
1N5223B 2.7 20 30 1300 75 1.0
1N5224B 2.8 20 30 1400 75 1.0
1N5225B 3.0 20 29 1600 50.0 1.0
1N5226B 3.3 20 28 1600 25.0 1.0
1N5227B 3.6 20 24 1700 15.0 1.0
1N5228B 3.9 20 23 1900 10.0 1.0
1N5229B 4.3 20 22 2000 5.0 1.0
1N5230B 4.7 20 19 1900 5.0 2.0
1N5231B 5.1 20 17 1600 5.0 2.0
1N5232B 5.6 20 11 1600 5.0 3.0
1N5233B 6.0 20 7 1600 5.0 3.5
1N5234B 6.2 20 7 1000 5.0 4.0
1N5235B 6.8 20 5 750 3.0 5.0
1N5236B 7.5 20 6 500 3.0 6.0
1N5237B 8.2 20 8 500 3.0 6.5
1N5238B 8.7 20 8 600 3.0 6.5
1N5239B 9.1 20 10 600 3.0 7.0
1N5240B 10 20 17 600 2.0 8
1N5241B 11 20 22 600 1.0 8.4
1N5242B 12 20 30 600 0.5 9
1N5243B 13 9.5 13 600 0.1 10
1N5244B 14 9.0 15 600 0.1 10
1N5245B 15 8.5 16 600 0.1 11
1N5246B 16 7.8 17 600 0.1 12
1N5247B 17 7.4 19 600 0.1 13
1N5248B 18 7.0 21 600 0.1 14
1N5249B 19 6.6 23 600 0.1 14
1N5250B 20 6.2 25 600 0.1 15
1N5251B 22 5.6 29 600 0.1 17
1N5252B 24 5.2 33 600 0.1 18
1N5253B 25 5.0 35 600 0.1 19
1N5254B 27 4.6 41 600 0.1 21
1N5255B 28 4.5 44 600 0.1 21
1N5256B 30 4.2 49 600 0.1 23
1N5257B 33 3.8 58 700 0.1 25
1N5258B 36 3.4 70 700 0.1 27
1N5259B 39 3.2 80 800 0.1 30
1N5260B 43 3.0 93 900 0.1 33
1N5261B 47 2.7 105 1000 0.1 36
1N5262B 51 2.5 125 1100 0.1 39
1N5263B 56 2.2 150 1300 0.1 43
Notes: 1. The t
yp
e numbers listed have zener volta
g
e as whown and have a standard
tolerance on the nominal zener volta
e of ±5%. Device of ±2% is indicated
b
y
a "C" instead of a "B".
2. Nominal zener volta
g
es between the volta
g
es shown and ti
g
hter volta
g
e, for
detalied information on
p
rice, availabilit
y
and deliver
y
.
3. The zener volta
g
e
(V
Z
)
is tested under pulse condition. The measured VZis
g
uaranteed to be within s
p
ecification with device
j
unction in thermal e
q
uilibrium.
4. Zener im
p
edance is derived from the 60-c
y
cle ac volta
g
e, which results when an ac
current havin
g
an RMS value equal to 10% of the dc zener current
(
IZT
)
is
superimposed to IZT.Version: A07