R08DS0209EJ0100 Rev.1.00 Page 1 of 12
Dec 25, 2020
Data Sheet
PS2501A-1, PS2501AL-1
HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE
DESCRIPTION
The PS2501A-1 and PS2501AL-1 are optically coupled isolators containing a GaAs light emitting diode and
an NPN silicon phototransistor to realize an excellent cost performance.
The PS2501A-1 is in a plastic DIP (Dual In-line Package) and the PS2501AL-1 is lead bending type (Gull-
wing) for surface mount.
FEATURES
High isolation voltage (BV = 5 000 Vr.m.s.)
Ordering number of taping product: PS2501AL-1-F3 : 2 000 pcs/reel
Pb-Free product
Safety standards
UL approved: UL1577, Double protection
APPLICATIONS
Power supply
Telephone/FAX.
FA/OA equipment
Programmable logic controller
R08DS0209EJ0100
Rev.1.00
Dec 25, 2020
1. Anode
2. Cathode
3. Emitter
4. Collector
1
2
4 3
PIN CONNECTION
(Top View)
PS2501A-1, PS2501AL-1
R08DS0209EJ0100 Rev.1.00 Page 2 of 12
Dec 25, 2020
PACKAGE DIMENSIONS (UNIT: mm)
DIP Type
Lead Bending Type For Surface Mount
Weight (4-pin DIP)：0.26 g (typ.)
PHOTOCOUPLER CONSTRUCTION
Parameter PS2501A-1, PS2501AL-1
Air Distance (MIN.) 7 mm
Creepage Distance (MIN.) 7 mm
Isolation Distance (MIN.) 0.3 mm
PS2501A-1
3.5±0.3
4.15±0.43.2±0.4
2.54
1.25±0.15
0.50±0.10
0.25M
0 to 15°
7.62
0.25
+0.1
–0.05
4.6±0.35
6.5±0.5
1 2
4 3
PS2501AL-1
0.15
0.25
M
3.5±0.3
2.54
1.25±0.15
0.25
+0.1
–0.05
0.9±0.25
9.60±0.4
0.1
+0.1
–0.05
4.6±0.35
6.5±0.5
1 2
4 3