Agilent 4N25
Phototransistor Optocoupler
General Purpose Type
Data Sheet
Description
The 4N25 is an optocoupler for
general purpose applications. It
contains a light emitting diode
optically coupled to a photo-
transistor. It is packaged in a 6-pin
DIP package and available in wide-
lead spacing option and lead bend
SMD option. Response time, t
r
, is
typically 3
µs
and minimum CTR is
20% at input current of 10 mA.
Ordering Information
Specify part number followed by
Option Number (if desired).
4N25-XXXX
Option Number
060 =
Option
W00 =
300 =
500 =
IEC/EN/DIN EN 60747-5-2
0.4" Lead Spacing Option
Lead Bend SMD Option
Tape and Reel Packaging
Option
XXXE = Lead Free Option
Features
• Response time (t
r
: typ., 3
µs
at
V
CE
= 10 V, I
C
= 2 mA, R
L
= 100
Ω)
• Current Transfer Ratio
(CTR: min. 20% at I
F
= 10 mA,
V
CE
= 10 V)
• Input-output isolation voltage
(V
iso
= 2500 Vrms)
• Dual-in-line package
• UL approved
• CSA approved
• IEC/EN/DIN EN 60747-5-2 approved
• Options available:
– Leads with 0.4" (10.16 mm)
spacing (W00)
– Leads bends for surface
mounting (300)
– Tape and reel for SMD (500)
– IEC/EN/DIN EN 60747-5-2
approvals (060)
Applications
• I/O interfaces for computers
• System appliances, measuring
instruments
• Signal transmission between
circuits of different potentials and
impedances
Functional Diagram
Schematic
PIN NO. AND INTERNAL
CONNECTION DIAGRAM
6
5
4
ANODE
1
+
I
F
6
BASE
V
F
CATHODE
–
2
I
C
5
COLLECTOR
4
1
1. ANODE
2. CATHODE
3. NC
2
3
4. EMITTER
5. COLLECTOR
6. BASE
EMITTER
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.
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
