HCPL-181
Phototransistor Optocoupler SMD Mini-Flat Type
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
The HCPL-181 contains a light emitting diode optically
coupled to a phototransistor. It is packaged in a 4-pin
mini-flat SMD package with a 2.0 mm profile. The small
dimension of this product allows significant space saving.
The package volume is 30% smaller than that of conven-
tional DIP type. Input-output isolation voltage is 3750
Vrms. Response time, t
r
, is typically 4 µs and minimum
CTR is 50% at input current of 5 mA.
Description
Features
• Current Transfer Ratio
(CTR: min. 50% at I
F
= 5 mA, V
CE
= 5 V)
• High input-output isolation voltage
(V
iso
= 3750 Vrms)
• High collector-emitter voltage (V
CEO
= 80 V)
• Response time
(t
r
: typ., 4 µs at V
CE
= 2 V, I
C
= 2 mA, R
L
= 100 Ω)
• Mini-flat package (2.0 mm profile) in tape and reel
package
• UL approved
• CSA approved
• IEC/EN/DIN EN 60747-5-2 approved
• Options available:
– IEC/EN/DIN EN 60747-5-2 approvals (060)
Schematic
ANODE
+
1
I
F
I
C
4
COLLECTOR
V
F
CATHODE
–
2
3
EMITTER
Functional Diagram
PIN NO. AND INTERNAL
CONNECTION DIAGRAM
4
3
Applications
• I/O interfaces for computers
• System appliances, measuring instruments
• Signal transmission between circuits of different
potentials and impedances
• Feedback circuit in power supply
1
1. ANODE
2. CATHODE
2
3. EMITTER
4. COLLECTOR
CAUTION:
It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage
and/or degradation which may be induced by ESD.
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
