March 2003 / B
Page
1
SEMICONDUCTOR
TAK CHEONG
500 mW LL-34 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Maximum Ratings
T
A
= 25C unless otherwise noted
Parameter Value
Units
Power Dissipation
500
mW
Storage Temperature Range
-65 to +200
C
Operating Junction Temperature
+200
C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 2.0 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
st
band indicates negative polarity
Electrical Characteristics
T
A
= 25C unless otherwise noted
Device Type
V
Z
@ I
ZT
(Volts)
Nominal
I
ZT
(mA)
Z
ZT
@ I
ZT
(
)
Max
I
R
@ V
R
(
A)
Max
V
R
(Volts)
TCLLZ2V0 2.0
5
100
120
0.5
TCLLZ2V2 2.2
5
100
120
0.7
TCLLZ2V4 2.4
5
100
120
1
TCLLZ2V7 2.7
5
110
100
1
TCLLZ3V0 3.0
5
120
50
1
TCLLZ3V3 3.3
5
120
20
1
TCLLZ3V6 3.6
5
100
10
1
TCLLZ3V9 3.9
5
100
5
1
TCLLZ4V3 4.3
5
100
5
1
TCLLZ4V7 4.7
5
80
5
1
TCLLZ5V1 5.1
5
80
5
1.5
TCLLZ5V6 5.6
5
60
5
2.5
TCLLZ6V2 6.2
5
60
5
3
TCLLZ6V8 6.8
5
20
2
3.5
TCLLZ7V5 7.5
5
20
0.5
4
TCLLZ8V2 8.2
5
20
0.5
5
TCLLZ9V1 9.1
5
25
0.5
6
TCLLZ10V 10
5
30
0.2
7
TCLLZ11V 11
5
30
0.2
8
TCLLZ12V 12
5
30
0.2
9
TCLLZ13V 13
5
35
0.2
10
TCLLZ15V 15
5
40
0.2
11
Cathode
Anode
ELECTRICAL SYMBOL
TC
LLZ2V
0 thr
o
ugh TC
LLZ56V
Se
r
i
e
s
DEVICE MARKING DIAGRAM
Cathode Band Color : Blue
SURFACE MOUNT
LL34
March 2003 / B
Page
2
SEMICONDUCTOR
TAK CHEONG
Electrical Characteristics
T
A
= 25C unless otherwise noted
Device Type
V
Z
@ I
ZT
(Volts)
Nominal
I
ZT
(mA)
Z
ZT
@ I
ZT
(
)
Max
I
R
@ V
R
(
A)
Max
V
R
(Volts)
TC16V 16
5
40 0.2 12
TC18V 18
5
45 0.2 13
TC20V 20
5
45 0.2 15
TC22V 22
5
30 0.2 17
TC24V 24
5
35 0.2 19
TC27V 27
5
45 0.2 21
TC30V 30
5
55 0.2 23
TC33V 33
5
65 0.2 25
TC36V 36
5
75 0.2 27
TC39V 39
5
85 0.2 30
TC43V 43
5
90 0.2 33
TC47V 47
5
90 0.2 36
TC51V 51
5 110 0.2 39
TC56V 56
5 110 0.2 43
V
F
Forward Voltage = 1.2 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%.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter
voltage tolerances, contact your nearest Tak Cheong Electronics representative.
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
Typical Characteristics
Symbol Parameter
V
Z
Reverse Zener Voltage @ I
ZT
I
ZT
Reverse Current
Z
ZT
Maximum Zener Impedance @ I
ZT
I
ZK
Reverse Current
Z
ZK
Maximum Zener Impedance @ I
ZK
I
R
Reverse Leakage Current @ V
R
V
R
Breakdown Voltage
I
F
Forward Current
V
F
Forward Voltage @ I
F
Ordering Information
Device Package
Quantity
TCxxx Bulk
10,000
TCxxx.TB Tape and Ammo
5,000
TCxxx.TR Tape and Reel
10,000
TCxxx
Others (...contact Tak Cheong sales representatives)
Axial-Lead Tape Packaging Standards
This axial-lead component's packaging requirements use in automatic testing and assembly equipment. And this standard practices for
lead-tape packaging of axial-lead components meets the requirements of EIA Standard RS-296-D "Lead-taping of Components on Axial
Lead Configuration for Automatic Insertion".
V
I
(mV)
(V)
(mA)
(mA)
V
F
I
F
V
R
I
R
V
Z
I
ZT
(nA)
PDF 
ZIP
