General Semiconductor ZTK11, ZTK18, ZTK22, ZTK27, ZTK33A Datasheet
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Maximum Ratings (T
A
= 25°C unless otherwise noted)
Parameter Symbol Value Unit
Operating Current (see Table “Characteristics”)
Junction temperature T
J
150 °C
Storage temperature range T
S
–20 to +150 °C
Electrical and Thermal Characteristics (T
A
= 25°C unless otherwise noted)
Parameter Symbol Min. Typ. Max. Unit
Temperature Coefficient of the operating voltage
α
VZ
–10 –2 +5
(1)
10–5/°C
at IZ= 5 mA ±0.5 in the range of T
amb
= 20 to 60°C
Thermal Run-in-Time
t
t
h
– –20
(2)
–s
Thermal resistance junction to ambient air R
θJA
– – 0.4 °C/W
Operating V oltage Dynamic resistance Permissable operating
at IZ= 5mA
(3)
at IZ= 5mA at T
amb
= 25°C
(4)
Type VZ (V) rzj(Ω)
I
Z
max. (mA)
ZTK6.8 6.4 ... 7.1 10 (<25) 36
ZTK9 8 ... 10 10 (<25) 27
ZTK11 10 ... 12 10 (<25) 1
ZTK18 16 ... 20 11(<25) 13
ZTK22 20 ... 24 11(<25) 1
ZTK27 24 ... 30 12 (<25) 8
ZTK33A 30 ... 32 12 (<25) 7
ZTK33B 32 ... 34 12 (<25) 7
ZTK33C 34 ... 36 12(<25) 7
Notes: (1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case
(2) At the end of this time ∆V
Z
has reached 90% of its final value ∆V
Z max
. ∆V
Z max
= VZ(a) – VZ(0), where VZ(0) = VZin the instant of turn-on
and V
Z
(a) = VZat thermal equilibrium
(3) Tested with pulses t
p
= 5ms
(4) Valid provided that leads are kept at ambient temperature at a distance of 8mm from case
Features
• Temperature-Compensated Stabilizing Circuits
• Monolithic linear integrated circuits with
extremely short thermal run-in time producing a
constant temperature-compensated voltage. They
are particularly suitable for stabilizing the tuning
voltage in radio and TV tuners employing voltagevariable capacitance diodes.
Mechanical Data
Case: DO-35 Glass Case
Weight: approx. 0.13 g
Packaging codes/options:
D7/10K per 13” reel (52mm tape), 20K/box
D8/10K per Ammo tape, (52mm tape), 20K/box
DO-204AH (DO-35 Glass)
ZTK6.8 thru ZTK33
Voltage Stabilizers
Dimensions are in inches
and (millimeters)
7/7/00
Ratings and
Characteristic Curves
TA= 25OC unless otherwise noted.
ZTK6.8 thru ZTK33
Voltage Stabilizers
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