BZM55 Series
Zener Voltage Range: 2.4 to 75 Volts
Zener Diodes
Power Dissipation: 500mW
Features
Saving space
Hermetic sealed parts
Electrical data identical with the devices BZT55..Series
Fits onto SOD-323 / SOD-110 footprints
Very sharp reverse characteristic
Low reverse current level
Very high stability
Low noise
Available with tighter tolerances
For voltage stabilization
Package Dimensions in mm (inches)
Mechanical Data
Case: MicroMELF
Weight: approx. 12 mg
Maximum Ratings and Thermal Characteristics
(T
amb
=25
o
C, unless otherwise specified)
Parameter
Zener current (see Table "Characteristics")
Power dissipation at R
thJA
< 300K/W
Junction temperature
Storage temperature range
Forward voltage at I
F
=200mA
Junction ambient (mounted on epoxy-glass hard tissue, Fig.1)
Junction ambient (35
u
m copper clad, 0.9mm copper area per
electrode))
2
Symbol
I
Z
P
tot
T
j
T
stg
V
F
R
θ
JA
R
θ
JL
Value
P
tot
/V
Z
500
175
-65 to +175
1.5
500
300
Unit
mA
mW
o
C
C
o
V
K/W
K/W
512
Electrical Characteristics
(T
A
=25
o
C unless otherwise noted)
Zener voltage
V
Z
@ I
ZT
(V)
1)
Dynamic resistance
at I
ZT
f=1kHz
Ω
r
z j
(Ω)
< 85
< 85
< 90
< 90
< 90
< 90
< 90
< 80
< 60
< 40
< 10
<8
<7
<7
< 10
< 15
< 20
< 20
< 26
< 30
< 40
< 50
< 55
< 55
< 80
< 80
< 80
< 80
< 80
< 90
< 90
< 110
< 125
< 135
< 150
< 200
< 250
at I
ZK
f=1kHz
Ω
r
z j
(Ω)
< 600
< 600
< 600
< 600
< 600
< 600
< 600
< 600
< 550
< 450
< 200
< 150
< 50
< 50
< 50
< 70
< 70
< 90
< 110
< 110
< 170
< 170
< 220
< 220
< 220
< 220
< 220
< 220
< 220
< 500
< 600
< 700
< 700
< 1000
< 1000
< 1000
< 1500
Test
current
Temperature
coefficient
TK
VZ
(% / K)
Test
current
Reverse leakage current
at
T
amb
=25
o
C
I
R
(uA)
<50
<10
<4
<2
<2
<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
<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
at
T
amb
=150
o
C
I
R
(uA)
<100
<50
<40
<40
<40
<40
<20
<10
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<5
<5
<5
<10
<10
<10
<10
<10
Part number
C for
+
5% V
Z
BZM55-C2V4
BZM55-C2V7
BZM55-C3V0
BZM55-C3V3
BZM55-C3V6
BZM55-C3V9
BZM55-C4V3
BZM55-C4V7
BZM55-C5V1
BZM55-C5V6
BZM55-C6V2
BZM55-C6V8
BZM55-C7V5
BZM55-C8V2
BZM55-C9V1
BZM55-C10
BZM55-C11
BZM55-C12
BZM55-C13
BZM55-C15
BZM55-C16
BZM55-C18
BZM55-C20
BZM55-C22
BZM55-C24
BZM55-C27
BZM55-C30
BZM55-C33
BZM55-C36
BZM55-C39
BZM55-C43
BZM55-C47
BZM55-C51
BZM55-C56
BZM55-C62
BZM55-C68
BZM55-C75
Min.
Max.
I
ZT
(mA)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
Min.
- 0.09
- 0.09
- 0.08
- 0.08
- 0.08
- 0.06
- 0.05
- 0.02
- 0.05
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
Max.
- 0.06
- 0.06
- 0.05
- 0.05
- 0.05
- 0.03
+ 0.02
+ 0.02
+ 0.05
+ 0.06
+ 0.07
+ 0.07
+ 0.08
+ 0.09
+ 0.1
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
I
ZK
(mA)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
at V
R
(Volts)
1
1
1
1
1
1
1
1
1
1
2
3
5
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
2.28
2.50
2.80
3.10
3.40
3.70
4.00
4.40
4.80
5.20
5.80
6.40
7.00
7.70
8.50
9.40
10.40
11.40
12.40
13.80
15.30
16.80
18.80
20.80
22.80
25.10
28.00
31.00
34.00
37.00
40.00
44.00
48.00
52.00
58.00
64.00
70.00
2.56
2.90
3.20
3.50
3.80
4.10
4.60
5.00
5.40
6.00
6.60
7.20
7.90
8.70
9.60
10.60
11.60
12.70
14.10
15.60
17.10
19.10
21.20
23.30
25.60
28.90
32.00
35.00
38.00
41.00
46.00
50.00
54.00
60.00
66.00
72.00
79.00
Notes:
1. t
p
< 10 ms, T/t
p
> 1000.
*) Additionnal measurement of Voltage group 9V1 to 75 at 95 % V
zmin
< 35 nA at T
j
25
o
C
513
Electrical Characteristics
(T
A
=25
o
C unless otherwise noted)
Zener voltage
V
Z
@ I
ZT
(V)
1)
Dynamic resistance
at I
ZT
f=1kHz
Ω
r
z j
(Ω)
< 85
< 85
< 90
< 90
< 90
< 90
< 90
< 80
< 60
< 40
< 10
<8
<7
<7
< 10
< 15
< 20
< 20
< 26
< 30
< 40
< 50
< 55
< 55
< 80
< 80
< 80
< 80
< 80
< 90
< 90
< 110
< 125
< 135
< 150
< 200
< 250
at I
ZK
f=1kHz
Ω
r
z j
(Ω)
< 600
< 600
< 600
< 600
< 600
< 600
< 600
< 600
< 550
< 450
< 200
< 150
< 50
< 50
< 50
< 70
< 70
< 90
< 110
< 110
< 170
< 170
< 220
< 220
< 220
< 220
< 220
< 220
< 220
< 500
< 600
< 700
< 700
< 1000
< 1000
< 1000
< 1500
Test
current
Temperature
coefficient
TK
VZ
(% / K)
Test
current
Reverse leakage current
at
T
amb
=25
o
C
I
R
(uA)
<50
<10
<4
<2
<2
<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
<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
at
T
amb
=150
o
C
I
R
(uA)
<100
<50
<40
<40
<40
<40
<20
<10
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<5
<5
<5
<10
<10
<10
<10
<10
Part number
B for
+
2% V
Z
BZM55-B2V4
BZM55-B2V7
BZM55-B3V0
BZM55-B3V3
BZM55-B3V6
BZM55-B3V9
BZM55-B4V3
BZM55-B4V7
BZM55-B5V1
BZM55-B5V6
BZM55-B6V2
BZM55-B6V8
BZM55-B7V5
BZM55-B8V2
BZM55-B9V1
BZM55-B10
BZM55-B11
BZM55-B12
BZM55-B13
BZM55-B15
BZM55-B16
BZM55-B18
BZM55-B20
BZM55-B22
BZM55-B24
BZM55-B27
BZM55-B30
BZM55-B33
BZM55-B36
BZM55-B39
BZM55-B43
BZM55-B47
BZM55-B51
BZM55-B56
BZM55-B62
BZM55-B68
BZM55-B75
Min.
Max.
I
ZT
(mA)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
Min.
- 0.09
- 0.09
- 0.08
- 0.08
- 0.08
- 0.06
- 0.05
- 0.02
- 0.05
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.03
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
+ 0.04
Max.
- 0.06
- 0.06
- 0.05
- 0.05
- 0.05
- 0.03
+ 0.02
+ 0.02
+ 0.05
+ 0.06
+ 0.07
+ 0.07
+ 0.08
+ 0.09
+ 0.1
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.11
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
+ 0.12
I
ZK
(mA)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
at V
R
(Volts)
1
1
1
1
1
1
1
1
1
1
2
3
5
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
2.35
2.65
2.94
3.24
3.52
3.82
4.22
4.6
5.00
5.48
6.08
6.66
7.35
8.04
8.92
9.80
10.78
11.76
12.74
14.70
15.70
17.64
19.60
21.55
23.50
26.40
29.40
32.40
35.30
38.20
42.10
46.10
50.00
54.90
60.80
66.60
73.50
2.45
2.76
3.06
3.36
3.68
3.98
4.38
4.8
5.20
5.72
6.32
6.94
7.65
8.36
9.28
10.20
11.22
12.24
13.26
15.30
16.30
18.36
20.40
22.45
24.50
27.60
30.60
33.60
36.70
39.80
43.90
47.90
52.00
57.10
63.20
69.40
76.50
Notes:
1. t
p
< 10 ms, T/t
p
> 1000.
*) Additionnal measurement of Voltage group 9V1 to 75 at 95 % V
zmin
< 35 nA at T
j
25
o
C
514
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