ZMM5221B thru ZMM5262B
Surface Mount Zener Diodes
* “G” Lead(Pb)-Free
Features:
*500mw Power Dissipation
*Genelral Purpose , Medium Current
*Ideal for Surface Mountted Application
SMALL SIGNAL
ZENER DIODES
0.5 WATTS
Mechanical Data:
*Case : MINI-MELF Glass Case (SOD-80)
*Weight : Approx 0.05 gram
MINI-MELF
MINI-MELF Outline Dimensions
Unit:mm
A
MINI MELF
B
C
Dim
A
B
C
Min
3.30
1.30
0.28
Max
3.70
1.60
0.50
WEITRON
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ZMM5221B thru ZMM5262B
WEITRON
mW
C/W
V
C
Maximum Ratings and Electrical Characteristics
(TA=25 C Unless Otherwise Noted)
Symbol
Characteristics
Unit
Value
Power Dissipation T
A
=75 C
(1)
Thermal Resistance Junction to Ambient Air
(1)
Forward Voltage @ IF=200mA
Operation and Storage Temperature Range
PD
R JA
VF
Tj,TSTG
500
300
1.1
-65 to+175
NOTES:1.Valid Provided that Electrodes are Kept at Ambient Temperature.
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WEITRON
ZMM5221B
thru
ZMM5262B
Electrical Characteristics
Zener Voltage(Note1)
Part
Number
ZMM5221B
ZMM5222B
ZMM5223B
ZMM5224B
ZMM5225B
ZMM5226B
ZMM5227B
ZMM5228B
ZMM5229B
ZMM5230B
ZMM5231B
ZMM5232B
ZMM5233B
ZMM5234B
ZMM5235B
ZMM5236B
ZMM5237B
ZMM5238B
ZMM5239B
ZMM5240B
ZMM5241B
ZMM5242B
ZMM5243B
ZMM5244B
ZMM5245B
ZMM5246B
ZMM5247B
ZMM5248B
ZMM5249B
ZMM5250B
ZMM5251B
ZMM5252B
ZMM5253B
ZMM5254B
ZMM5255B
ZMM5256B
ZMM5257B
ZMM5258B
ZMM5259B
ZMM5260B
ZMM5261B
ZMM5262B
Vz
Nom
(V)
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
36
39
43
47
51
Min
(V)
2.28
2.38
2.57
2.66
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.70
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
13.30
14.24
15.20
16.15
17.10
18.05
19.00
20.90
22.80
23.75
25.65
26.60
28.50
31.35
34.20
37.05
40.85
44.65
48.45
Max
(V)
2.52
2.63
2.84
2.94
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.30
6.51
7.14
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
14.70
15.75
16.80
17.85
18.90
19.95
21.00
23.010
25.20
26.25
28.35
29.40
31.50
34.65
37.80
40.95
45.15
49.35
53.55
@I
ZT
(
mA
)
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
3.4
3.2
3.0
2.7
2.5
Max ,Reverse
Leakage Current
I
R
@V
R
(
A
)
100
100
75
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
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
(V )
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
27
30
33
36
39
(
W
)
30
30
30
30
29
28
24
23
22
19
17
11
7.0
7.0
5.0
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
Max, Zener Impedance
Z
ZT
@I
ZT
( mA)
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
3.4
3.2
3.0
2.7
2.5
WE IT R ON
(T
A
=25 C unless otherwise noted, V
F
=1.1 V Max. @I
F
=200mA for all types)
Typical Temperature
Coefficient
Tc
%/C
-0.085
-0.085
-0.085
-0.085
-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
+0.093
+0.094
+0.095
+0.095
+0.096
1. Zener voltage is measured with a pulse test current Iz at an ambient temperture of 25 C
2. Zenner Voltage Tolerance Suffix "B" For 5%
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WEITRON
ZMM5221B
thru
ZMM5262B
Cj , JUNCTION CAPACITANCE(pF)
500
200
WE IT R ON
VR=2.0V
TJ=25 C
P
D
,POWER DISSIPATION(mW)
400
150
300
100
200
100
50
0
0
40
80
120
160
200
0
0
5
10
15
20
25
FIG 1, Power Dissipation vs Ambient Temperature
1000
DIFFERENTIAL ZENER RESISTANCE ( )
T
A
, AMBIENT TEMPERATURE
Fig 2., Junction Capacitance vs Zener Voltage
V
Z
, ZENER VOLTAGE (V)
Tj=25 C
100
Iz=1.0 mA
5.0 mA
10
10 mA
1
0
5
10
15
20
25
FIG 3, DIFFERENTIAL ZENER IMPEDANCE
V
Z
, ZENER VOLTAGE (V)
r(t), NORMALIZED EFFECTIVE
TRANSIENT THE RMAL RESISRTANCE ( C)
1000
100
R
JA
(1)=r(1) R
JA
R
JA
= 300K/W
10
P(pk)
1.0
0.1
D=0.5
0.2
0.1
0.05
0.02
0.01
t1
t2
TJ-TA=Ppk R
JA
Duty Cycle, D=t1/t2
1.0
10
100
1000
t1, SQUARE WAVE PULSE DURATION (seconds)
Fig 4 ,Typical Normallzed Transient Thermal Impedance Curves
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