November 2005 / C
Neil Solano Page 1
TAK CHEONG
®
SEMICONDUCTOR
1 Watt DO-41 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Ma ximum Ra ti ng s TA = 25°C unless otherwise noted
Parameter Value Units
Storage Temperature Range -65 to +200 °C
Maximum Junction Operating Temperature +200 °C
Total Device Dissipation 1.0 Watt
Thermal Resistance Junction to Lead 53.5 °C / W
Thermal Resistance Junction to Ambient 100 °C / W
Lead Temperature (1/16” from case for 10 seconds) +230 °C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 3.3 to 56 Volts
DO-41 Package (JEDEC)
Through-Hole Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction
All external surfaces are corrosion resistant and leads are readily solderable
Cathode indicated by polarity band
Electrical Characteristics TA = 25°C unless otherwise noted
Device Type VZ @ IZT
(Volts)
Nominal
IZT
(mA)
ZZT @ IZT
(Ω)
Max
IZK
(mA)
ZZK @ IZK
(Ω)
Max
IR @ VR
(µA)
Max
VR
(Volts)
TC1N4728A 3.3 76 10 1 400 100 1
TC1N4729A 3.6 69 10 1 400 100 1
TC1N4730A 3.9 64 9 1 400 50 1
TC1N4731A 4.3 58 9 1 400 10 1
TC1N4732A 4.7 53 8 1 500 10 1
TC1N4733A 5.1 49 7 1 550 10 1
TC1N4734A 5.6 45 5 1 600 10 2
TC1N4735A 6.2 41 2 1 700 10 3
TC1N4736A 6.8 37 3.5 1 700 10 4
TC1N4737A 7.5 34 4 0.5 700 10 5
TC1N4738A 8.2 31 4.5 0.5 700 10 6
TC1N4739A 9.1 28 5 0.5 700 10 7
TC1N4740A 10 25 7 0.25 700 10 7.6
TC1N4741A 11 23 8 0.25 700 5 8.4
TC1N4742A 12 21 9 0.25 700 5 9.1
TC1N4743A 13 19 10 0.25 700 5 9.9
TC1N4744A 15 17 14 0.25 700 5 11.4
TC1N4745A 16 15.5 16 0.25 700 5 12.2
TC1N4746A 18 14 20 0.25 700 5 13.7
TC1N4747A 20 12.5 22 0.25 750 5 15.2
TC1N4748A 22 11.5 23 0.25 750 5 16.7
TC1N4749A 24 10.5 25 0.25 750 5 18.2
Cathode Anode
ELECTRICAL SYMBOL
TC1N4728A through TC1N4758A Series
AXIAL LEAD
DO41
L
1N
47
xx
T
DEVICE MARKING DIAGRAM
L : Logo
Device Code : TC1N47xxT
VZ Tolerance (T) : A = ±5%
C = ±2%