TL431KC
Features
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The Reference Input Voltage Tolerance is 0.4%
Programmable Output Voltage 36V
Low Output Noise Voltage and Fast Turn On Response
Epoxy Meets UL 94 V-0 Flammability Rating
Moisture Sensitivity Level 1
Programmable
Precision Regulator
Halogen Free. “Green” Device (Note 1)
Lead Free Finish/RoHS Compliant ("P" Suffix designates RoHS
Compliant. See ordering information)
Maximum Ratings
SOT-23
Parameter
Value
Symbol
Unit
Cathode Voltage
VKA
37
V
A
D
Cathode Current Range
IK
100
mA
mA
W
3
1. (K) CATHODE
2. (R) REFERENCE
3. (A) ANODE
Reference Input Current Range
IREF
PD
10
B
C
1
2
℃
Power Dissipation at 25
0.35
F
E
357
Thermal Resistance Junction to Ambient
Operating Temperature
RθJA
Topr
℃/W
℃
-40~125
H
G
J
L
K
Storage Temperature Range
TSTG
-65~150
℃
DIMENSIONS
MM
INCHES
DIM
NOTE
MIN MAX MIN MAX
0.110 0.120 2.80 3.04
0.083 0.104 2.10 2.64
0.047 0.055 1.20 1.40
0.034 0.041 0.85 1.05
0.067 0.083 1.70 2.10
0.018 0.024 0.45 0.60
A
B
C
D
E
F
G
H
J
Recommended Operating Conditions
Parameter
Cathode Voltage
Symbol Min Max Unit
VKA
IK
VREF
36
V
Cathode Current Range
0.01 0.15
1.0 50
mA
0.0004 0.006
0.035 0.043 0.90 1.10
0.003 0.007 0.08 0.18
0.012 0.020 0.30 0.51
Note:
1. Halogen free "Green” products are defined as those which contain <900ppm bromine,
K
L
<900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
0.020
0.50
0.007
0.20
Suggested Solder Pad Layout
Marking Code: 431Q
0.031
0.800
0.035
0.900
0.079
2.000
inches
mm
R
A
K
0.037
0.950
0.037
0.950
Rev.3-4-04292023
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