®
TAK CHEONG
SE M I CO N DU CTO R
500 mW DO-35 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Maximum Ratings
Parameter
Power Dissipation
Storage Temperature Range
Operating Junction Temperature
Lead Temperature (1/16” from case for 10 seconds)
T
A
= 25°C unless otherwise noted
Value
500
-65 to +200
+200
+230
Units
mW
°C
°C
°C
AXIAL LEAD
DO35
DEVICE MARKING DIAGRAM
L
43
xx
T
L
: Logo
Device Code : TC1N43xxT
Tolerance (T) : (Blank)
:
A
:C
:D
=
10%
= 5%
= 2%
= 1%
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 2.4 to 3 Volts
DO-35 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
Cathode
Anode
ELECTRICAL SYMBOL
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
I
R
@ V
R
(µA)
Max
V
R
(Volt)
TC1N4370A
2.4
20
30
100
1
TC1N4371A
2.7
20
30
75
1
TC1N4372A
3
20
29
50
1
V
F
Forward Voltage = 1.5 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%.
Suffix (BLANK) = ±10%, Suffix C = ±2% and D = ±1%.
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
) is superimposed to
I
ZT
.
March 2004
Page 1
TC1N4370A through TC1N4372A Series
®
TAK CHEONG
SE M I CO N DU CTO R
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
I
F
Typical Characteristics
I
(mA)
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
Ordering Information
Device
TC1N43xxA
TC1N43xxA.TB
TC1N43xxA.TR
TC1N43xxA.TB26
TC1N43xxA
Package
Bulk
Tape and Ammo (52mm)
Tape and Reel (52mm)
Tape and Ammo (26mm)
Others (…contact Tak Cheong sales representatives)
Quantity
10,000
5,000
10,000
5,000
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”.
March 2004
Page 2
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