DATA SHEET
SEMICONDUCTOR
LLZ52xxB Series
500 mW LL-34 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Maximum Ratings
Parameter
Power Dissipation
Storage Temperature Range
Operating Junction Temperature
T
A
= 25°C unless otherwise noted
Value
500
-65 to +200
+200
Units
mW
°C
°C
SURFACE MOUNT
LL34
DEVICE MARKING DIAGRAM
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 2.4 to 56 Volts
LL-34 (Mini-MELF) Package
Surface Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction
All external surfaces are corrosion resistant and leads are readily solderable
1 band indicates negative polarity
st
Cathode Band Color
Brown
Blue
Orange
Yellow
Tolerance
10%
5%
2%
1%
Cathode
Anode
ELECTRICAL SYMBOL
Electrical Characteristics
Device Type
LLZ5221B
LLZ5222B
LLZ5223B
LLZ5224B
LLZ5225B
LLZ5226B
LLZ5227B
LLZ5228B
LLZ5229B
LLZ5230B
LLZ5231B
LLZ5232B
LLZ5233B
LLZ5234B
LLZ5235B
LLZ5236B
LLZ5237B
LLZ5238B
LLZ5239B
LLZ5240B
LLZ5241B
LLZ5242B
LLZ5243B
V
Z
@ I
ZT
(Volts)
Nominal
2.4
2.5
2.7
2.8
3
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
T
A
= 25°C unless otherwise noted
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
Z
ZT
@ I
ZT
(Ω)
Max
30
30
30
30
29
28
24
23
22
19
17
11
7
7
5
6
8
8
10
17
22
30
13
Z
ZK
@ I
ZK
= 0.25mA
(Ω)
Max
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
I
R
@ V
R
(µA)
Max
100
100
75
75
50
25
15
10
5
5
5
5
5
5
3
3
3
3
3
3
2
1
0.5
V
R
(Volts)
1
1
1
1
1
1
1
1
1
2
2
3
3.5
4
5
6
6.5
6.5
7
8
8.4
9.1
9.9
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REV.02 20120305
LLZ52xxB Series
Electrical Characteristics
Device Type
V
Z
@ I
ZT
(Volts)
Nominal
T
A
= 25°C unless otherwise noted
I
ZT
(mA)
Z
ZT
@ I
ZT
(Ω)
Max
Z
ZK
@ I
ZK
= 0.25mA
(Ω)
Max
I
R
@ V
R
(µA)
Max
V
R
(Volts)
LLZ5244B
14
9
15
600
0.1
10
LLZ5245B
15
8.5
16
600
0.1
11
LLZ5246B
16
7.8
17
600
0.1
12
LLZ5247B
17
7.4
19
600
0.1
13
LLZ5248B
18
7
21
600
0.1
14
LLZ5249B
19
6.6
23
600
0.1
14
LLZ5250B
20
6.2
25
600
0.1
15
LLZ5251B
22
5.6
29
600
0.1
17
LLZ5252B
24
5.2
33
600
0.1
18
LLZ5253B
25
5
35
600
0.1
19
LLZ5254B
27
4.6
41
600
0.1
21
LLZ5255B
28
4.5
44
600
0.1
21
LLZ5256B
30
4.2
49
600
0.1
23
LLZ5257B
33
3.8
58
700
0.1
25
LLZ5258B
36
3.4
70
700
0.1
27
LLZ5259B
39
3.2
80
800
0.1
30
LLZ5258B
36
3.4
70
700
0.1
27
LLZ5259B
39
3.2
80
800
0.1
30
LLZ5260B
43
3
93
900
0.1
33
LLZ5261B
47
2.7
105
1000
0.1
36
LLZ5262B
51
2.5
125
1100
0.1
39
LLZ5263B
56
2.2
150
1300
0.1
43
V
F
Forward Voltage = 1.1 V Maximum @
I
F
= 200 mA for all types
Notes:
1. The type numbers listed have zener voltage as shown and have a standard tolerance on the nominal zener voltage of ±5% in
Blue marking, suffix A=±10% in Brown marking, C= ±2% in Orange marking and D = ±1% in Yellow marking.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter
3.
The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to
10% of the dc zener current (I
ZT
or
I
ZK
) is superimposed to
I
ZT
or
I
ZK.
Electrical Symbol Definition
Symbol
V
Z
I
ZT
Z
ZT
I
ZK
Z
ZK
I
R
V
R
I
F
V
F
Parameter
Reverse Zener Voltage @
I
ZT
Typical Characteristics
I
(mA)
I
F
Reverse Current
Maximum Zener Impedance @
I
ZT
Reverse Current
Maximum Zener Impedance @
I
ZK
Reverse Leakage Current @
V
R
Breakdown Voltage
Forward Current
Forward Voltage @
I
F
(nA)
(mA)
(V)
V
Z
V
R
(mV)
I
R
I
ZT
V
F
V
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REV.02 20120305
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