3
Regulatory Information
The HCPL-T251 is under
approval by the following
organizations:
UL
Approval under UL 1577,
Component Recognition
Program, File E55361.
CSA
Approval under CSA Component
Acceptance Notice #5, File CA 88324.
Insulation and Safety Related
Parameter
Minimum External Air Gap
(Clearance)
Minimum External Tracking
(Creepage)
Minimum Internal Plastic Gap
(Internal Clearance)
Tracking Resistance
(Comparative Tracking Index)
Isolation Group
CTI
Symbol
L(101)
Value Units
7.1
mm
Conditions
Measured from input terminals to
output terminals, shortest distance through
air.
Measured from input terminals to
output terminals, shortest distance path
along body.
Insulation thickness between emitter
and detector; also known as distance
through insulation
DIN IEC 112/VDE 0303 Part 1
Material Group (DIN VDE 0110, 1/89, Table 1)
L(102)
7.4
mm
0.08
mm
≥
175
IIIa
Volts
Absolute Maximum Ratings
(Compared with HCPL-3140)
Parameter
Operating Temperature
“High” Peak Output Current
“High” Peak Output Current
Storage Temperature
Average Input Current
Peak Transient Input Current
(<1
µs
Pulse Width, 300 pps)
Reverse Input Voltage
Supply Voltage
Output Voltage
Output Power Dissipation
Lead Solder Temperature
Solder Reflow Temperature Profile
Symbol
T
A
I
OH(PEAK)
I
OL(PEAK)
T
S
I
F(AVG)
I
F(TRAN)
Units
°C
A
A
°C
mA
A
HCPL-3140
Min.
Max.
- 40
100
0.6
0.6
-55
125
25
1.0
HCPL-T251
Min.
Max.
-20
85
0.4
0.4
-55
125
20
1.0
Note
1
2
V
R
V
5
5
(V
CC
- V
EE
)
V
-0.5
35
-0.5
35
V
O
V
0
V
CC
0
V
CC
P
O
mW
250
250
260°C for 10 sec., 1.6 mm below seating plane
See Package Outline Drawings section
3
Notes:
1. Maximum pulse width = 10
µs,
maximum duty cycle = 0.2%.
2. Derate linearly above 70°C free-air temperature at a rate of 0.3 mA/°C.
3. Derate lineraly above 70°C free-air temperature at a rate of 4.8 mW/°C.
HP [ AGILENT(HEWLETT-PACKARD) ]
