DATA SHEET
PHOTOCOUPLERS
PS2503 -1, -2, -4
PS2503L-1, -2, -4
LOW INPUT CURRENT, HIGH SPEED SWITCHING
MULTI PHOTOCOUPLER SERIES
DESCRIPTION
PS2503-1, -2, -4 and PS2503L-1, -2, -4 series are optically coupled isolator containing a GaAs light emitting diode
and an NPN silicon phototransistor.
PS2503-1, -2, -4 are in a plastic DIP (Dual In-line Package) and PS2503L-1, -2, -4 are lead bending type (Gull-
wing) for surface mount.
FEATURES
• High isolation voltage (BV: 5 000 V
r.m.s.
MIN.)
• High speed switching (t
r
= 20
µ
s, t
f
= 30
µ
s TYP., @R
L
= 10 kΩ)
• High current transfer ratio (CTR: 100 % MIN. @I
F
= 1 mA, V
CE
= 5 V)
• Taping Product number (PS2503L-1-E3, E4, F3, F4)
(PS2503L-2-E3, E4)
• UL recognized [File No. E72422(S)]
APPLICATIONS
Interface circuit for various instrumentations, control equipments.
• AC Line/Digital Logic .................................................. Isolate high voltage transients
• Digital Logic/Digital Logic ........................................... Eliminate spurious ground loops
• Twisted pair line receiver ........................................... Eliminate ground look pick-up
• Telephone/Telegraph line receiver ............................ Isolate high voltage transients
• High Frequeny Power Supply Feedback Control ...... Maintain floating ground
• Relay Contact Monitor ................................................ Isolate floating grounds and transients
• Power Supply Monitor ................................................ Isolate transients and ground systems
Document No. P11304EJ3V0DS00 (3rd edition)
(Previous No. LC-2305A)
Date Published February 1996 P
Printed in Japan
©
1993
NEC [ NEC ]
