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PHOTOCOUPLER
PS2841-4A,PS2841-4B
WORLD’S SMALLEST CLASS, FOUR CHANNELS
12-PIN ULTRA SHRINK SOP PHOTOCOUPLER
−NEPOC Series−
Document No. PN10202EJ04V0DS (4th edition)
Date Published May 2006 NS CP(K)
2001, 2006
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.
FEATURES
• Ultra small and thin package
(12-pin ultra shrink SOP, Pin pitch 0.8 mm, 4.4 (L) × 5.6 (W) × 2.5 (H))
• Common lead PS2841-4A: cathode, collector common
PS2841-4B: anode, collector common
• High current transfer ratio (CTR = 200% TYP. @ I
F = 1mA)
• High isolation voltage (BV = 1 500 Vr.m.s.)
• Pb-Free product
• Ordering number of tape product:
PS2841-4A-F3, F4: 2 500 pcs/reel
PS2841-4B-F3, F4: 2 500 pcs/reel
• Safety standards
• UL approved: File No. E72422
APPLICATIONS
• Programmable logic controllers (PLCs)
• Input and output for function automation
• Hybrid IC
123456
12 11 10 9 8 7
PS2841-4A
Channel
1 ch
2 ch
3 ch
4 ch
Anode
2
3
4
5
Cathode
1, 6 common
1, 6 common
1, 6 common
1, 6 common
Emitter
11
10
9
8
Collector
7, 12 common
7, 12 common
7, 12 common
7, 12 common
PIN CONNECTIONS
(Top View)
123456
12 11 10 9 8 7
PS2841-4B
PIN CONNECTIONS
(Top View)
Channel
1 ch
2 ch
3 ch
4 ch
Anode
1, 6 common
1, 6 common
1, 6 common
1, 6 common
Cathode
2
3
4
5
Emitter
11
10
9
8
Collector
7, 12 common
7, 12 common
7, 12 common
7, 12 common
