PHOTOCOUPLER
PS2841-4A,PS2841-4B
WORLD’S SMALLEST CLASS, FOUR CHANNELS
12-PIN ULTRA SMALL SOP PHOTOCOUPLER
−NEPOC Series−
DESCRIPTION
The PS2841-4A and PS2841-4B are optically coupled isolators containing GaAs light emitting diodes and NPN
silicon phototransistors.
These products include four channels in a single package for high-density mounting applications.
The PS2841-4A and PS2841-4B are the world's smallest class of photocouplers and realize about 50% reduction in
mounting area compared with the PS280x and PS281x Series.
PIN CONNECTIONS
(Top View)
FEATURES
• Ultra small and thin package
(12-pin ultra small SOP, Pin pitch 0.8 mm, 4.4 (L) × 5.6 (W) × 2.5 (H))
• Common lead
PS2841-4A
12 11 10 9 8 7
PS2841-4A: cathode, collector common
PS2841-4B: anode, collector common
• High current transfer ratio (CTR = 200% TYP. @ IF = 1mA)
• High isolation voltage (BV = 1 500 Vr.m.s.)
1 2 3 4 5 6
• Pb-Free product
• Ordering number of tape product:
PS2841-4A-F3, F4: 2 500 pcs/reel
Channel Anode
Cathode
Emitter
Collector
1 ch
1, 6 common
11
2
7, 12 common
2 ch
1, 6 common
10
3
7, 12 common
3 ch
1, 6 common
9
4
7, 12 common
4 ch
1, 6 common
8
5
7, 12 common
PS2841-4B-F3, F4: 2 500 pcs/reel
• Safety standards
• UL approved: File No. E72422
APPLICATIONS
PIN CONNECTIONS
(Top View)
• Programmable logic controllers (PLCs)
• Input and output for function automation
PS2841-4B
• Hybrid IC
12 11 10 9 8 7
1 2 3 4 5 6
Channel
Cathode Emitter
Anode
Collector
1 ch 1, 6 common
2
11
7, 12 common
2 ch 1, 6 common
3
10
7, 12 common
3 ch 1, 6 common
4
9
7, 12 common
4 ch 1, 6 common
5
8
7, 12 common
Document No. PN10202EJ03V0DS (3rd edition)
Date Published April 2005 CP(K)
The mark
shows major revised points.
