HCPL-2231-300E
Broadcom Limited
OPTOISO 3.75KV PUSH PULL 8DIP GW
Sa stock11431 pcs
3750Vrms
Tube
HCPL-2231
10mA
1.5V
300ns, 300ns
1kV/µs
2/0
30ns, 7ns
5MBd
25 mA
4.5V ~ 20V
8-DIP Gull Wing
8-SMD, Gull Wing
2
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
PC4D10SNIP0F
Sharp Microelectronics
OPTOISO 3.75KV OPEN COLL 8MFLAT
Sa stock3890 pcs
3750Vrms
Tape & Reel (TR)
-
20mA
1.5V
75ns, 75ns
10kV/µs
2/0
20ns, 10ns
10Mbps
50 mA
4.5V ~ 5.5V
8-Miniflat
8-SOIC (0.154', 3.90mm Width)
2
Open Collector
Surface Mount
-40°C ~ 85°C
DC
OPIC™
RFQ
HCPL-060L-560E
Broadcom Limited
OPTOISO 3.75KV OPN COLLECTOR 8SO
Sa stock32975 pcs
3750Vrms
Tape & Reel (TR)
HCPL-060
20mA
1.5V
75ns, 75ns
10kV/µs
1/0
24ns, 10ns
15MBd
50 mA
2.7V ~ 3.6V, 4.5V ~ 5.5V
8-SO Tall
8-SOIC (0.154', 3.90mm Width)
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
ACSL-6210-50RE
Broadcom Limited
OPTOISO 2.5KV 2CH OPEN COLL 8SO
Sa stock19598 pcs
2500Vrms
Tape & Reel (TR)
ACSL-6210
15mA
1.52V
100ns, 100ns
10kV/µs
1/1
30ns, 12ns
15MBd
50 mA
3V ~ 5.5V
8-SO
8-SOIC (0.154', 3.90mm Width)
2
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
HCPL2631SV
Fairchild Semiconductor
LOGIC IC OUTPUT OPTOCOUPLER, 2-E
Sa stock21654 pcs
2500Vrms
Bulk
-
30mA
1.4V
75ns, 75ns
5kV/µs
2/0
50ns, 12ns
10Mbps
50 mA
4.5V ~ 5.5V
8-SMD
8-SMD, Gull Wing
2
Open Collector
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
HCPL-M456-000E
Broadcom Limited
OPTOISO 3.75KV OPN COLLECTOR 5SO
Sa stock32657 pcs
3750Vrms
Tube
HCPL-M456
25mA
1.5V
550ns, 400ns
15kV/µs
1/0
-
-
15 mA
4.5V ~ 30V
5-SO
6-SOIC (0.173", 4.40mm Width), 5 Leads
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
HCPL-7721-300E
Broadcom Limited
OPTOISO 3.75KV PUSH PULL 8DIP GW
Sa stock8931 pcs
3750Vrms
Tube
HCPL-7721
-
-
40ns, 40ns
10kV/µs
1/0
9ns, 8ns
25MBd
10 mA
4.5V ~ 5.5V
8-DIP Gull Wing
8-SMD, Gull Wing
1
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 85°C
Logic
-
RFQ
TLP754(F)
Toshiba Semiconductor and Storage
OPTOISO 5KV OPEN COLLECTOR 8DIP
Sa stock22241 pcs
5000Vrms
Tube
TLP754
20mA
1.55V
550ns, 400ns
20kV/µs
1/0
-
1Mbps
15 mA
4.5V ~ 30V
8-DIP
8-DIP (0.300', 7.62mm)
1
Open Collector
Through Hole
-40°C ~ 125°C
DC
-
RFQ
HCPL-M600-500E
Broadcom Limited
OPTOISO 3.75KV OPN COLLECTOR 5SO
Sa stock26055 pcs
3750Vrms
Tape & Reel (TR)
HCPL-M600
20mA
1.5V
75ns, 75ns
10kV/µs (Typ)
1/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
5-SO
6-SOIC (0.173', 4.40mm Width), 5 Leads
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
TLP558(F)
Toshiba Semiconductor and Storage
OPTOISO 2.5KV TRI-STATE 8DIP
Sa stock4940 pcs
2500Vrms
Tube
TLP558
10mA
1.55V
400ns, 400ns
1kV/µs
1/0
35ns, 20ns
5Mbps
40 mA
4.5V ~ 20V
8-DIP
8-DIP (0.300", 7.62mm)
1
Tri-State
Through Hole
-40°C ~ 85°C
DC
-
RFQ
HCPL-2611-020E
Broadcom Limited
OPTOISO 5KV OPEN COLLECTOR 8DIP
Sa stock21905 pcs
5000Vrms
Tube
HCPL-2611
20mA
1.5V
100ns, 100ns
15kV/µs
1/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
8-DIP
8-DIP (0.300", 7.62mm)
1
Open Collector, Schottky Clamped
Through Hole
-40°C ~ 85°C
DC
-
RFQ
ACPL-K75T-560E
Broadcom Limited
OPTOISO 5KV 2CH PUSH PULL 8SO
Sa stock8005 pcs
5000Vrms
Tape & Reel (TR)
ACPL-K75
20mA
1.5V
100ns, 100ns
25kV/µs
2/0
10ns, 10ns
-
-
3V ~ 5.5V
8-SO Stretched
8-SOIC (0.268', 6.81mm Width)
2
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 125°C
DC
-
RFQ
HCPL2601
Texas Instruments
LOGIC IC OUTPUT OPTOCOUPLER
Sa stock47790 pcs
2500Vrms
Tube
-
50mA
1.4V
75ns, 75ns
5kV/µs
1/0
50ns, 12ns
10Mbps
50 mA
4.5V ~ 5.5V
8-DIP
8-DIP (0.300", 7.62mm)
1
Open Collector
Through Hole
-40°C ~ 85°C
DC
-
RFQ
H11N3SR2VM
onsemi
OPTOISO 4.17KV OPN COLL 6SMD
Sa stock5390 pcs
4170Vrms
Tape & Reel (TR)
H11N
30mA
1.4V
330ns, 330ns
-
1/0
7.5ns, 12ns
5MHz
50 mA
4V ~ 15V
6-SMD
6-SMD, Gull Wing
1
Open Collector
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
SFH6712
Vishay Semiconductor Opto Division
OPTOISO 5.3KV PUSH PULL 8DIP
Sa stock3920 pcs
5300Vrms
Tube
SFH6712
10mA
1.6V
300ns, 300ns
2.5kV/µs
1/0
40ns, 10ns
5MBd
25 mA
4.5V ~ 15V
8-DIP
8-DIP (0.300', 7.62mm)
1
Push-Pull, Totem Pole
Through Hole
-40°C ~ 85°C
DC
-
RFQ
H11N3VM
onsemi
OPTOISO 4.17KV OPN COLL 6DIP
Sa stock3990 pcs
4170Vrms
Bulk
H11N
30mA
1.4V
330ns, 330ns
-
1/0
7.5ns, 12ns
5MHz
50 mA
4V ~ 15V
6-DIP
6-DIP (0.300", 7.62mm)
1
Open Collector
Through Hole
-40°C ~ 85°C
DC
-
RFQ
PS9124-V-F3-AX
CEL
OPTOISO 3.75KV OPEN COLL 5SOP
Sa stock4990 pcs
3750Vrms
Tape & Reel (TR)
-
25mA
1.55V
75ns, 75ns
10kV/µs
1/0
20ns, 5ns
10Mbps
25 mA
2.7V ~ 3.6V, 4.5V ~ 5.5V
5-SO
6-SOIC (0.173", 4.40mm Width), 5 Leads
1
Open Collector
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
H11N2SR2M
onsemi
OPTOISO 4.17KV OPN COLL 6SMD
Sa stock4860 pcs
4170Vrms
Tape & Reel (TR)
H11N
30mA
1.4V
330ns, 330ns
-
1/0
7.5ns, 12ns
5MHz
50 mA
4V ~ 15V
6-SMD
6-SMD, Gull Wing
1
Open Collector
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
H11L1SM
Isocom Components 2004 LTD
OPTOISO 5KV OPEN COLLECTOR 6SMD
Sa stock127730 pcs
5000Vrms
Tube
H11L1
50mA
-
6µs, 3µs
-
1/0
100ns, 50ns
1MHz
50 mA
3V ~ 15V
6-SMD
6-SMD, Gull Wing
1
Open Collector
Surface Mount
-25°C ~ 85°C
DC
-
RFQ
H11N2S
onsemi
OPTOCOUPLER SCHMITT TRIG OUT SMD
Sa stock5180 pcs
7500Vrms
Bag
H11N
5mA
1.4V
330ns, 330ns
-
1/0
-
5MHz
50 mA
-
6-SMD
6-SMD, Gull Wing
1
Open Collector
Surface Mount
-
DC
-
RFQ
ACPL-K63L-000E
Broadcom Limited
OPTOISO 5KV 2CH OPN COLL 8SO
Sa stock10123 pcs
5000Vrms
Tube
ACPL-K63
15mA
1.5V
75ns, 75ns
15kV/µs
2/0
24ns, 10ns
15MBd
50 mA
2.7V ~ 3.6V, 4.5V ~ 5.5V
8-SO Stretched
8-SOIC (0.268', 6.81mm Width)
2
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
HCPL-2611-500E
Broadcom Limited
OPTOISO 3.75KV OPEN COLL 8DIP GW
Sa stock19488 pcs
3750Vrms
Tape & Reel (TR)
HCPL-2611
20mA
1.5V
100ns, 100ns
15kV/µs
1/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
8-DIP Gull Wing
8-SMD, Gull Wing
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
FOD260LT
onsemi
OPTOISO 5KV OPEN COLLECTOR 8DIP
Sa stock5290 pcs
5000Vrms
Bulk
FOD260
50mA
1.4V
90ns, 75ns
25kV/µs
1/0
22ns, 3ns
10Mbps
50 mA
3V ~ 5.5V
8-MDIP
8-DIP (0.400', 10.16mm)
1
Open Collector, Schottky Clamped
Through Hole
-40°C ~ 85°C
DC
-
RFQ
HCPL-2601-320E
Broadcom Limited
OPTOISO 5KV OPEN COLL 8DIP GW
Sa stock33013 pcs
5000Vrms
Tube
HCPL-2601
20mA
1.5V
100ns, 100ns
10kV/µs
1/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
8-DIP Gull Wing
8-SMD, Gull Wing
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
HCPL-0201-000E
Broadcom Limited
OPTOISO 3.75KV PUSH PULL 8SO
Sa stock26624 pcs
3750Vrms
Tube
HCPL-0201
10mA
1.5V
300ns, 300ns
5kV/µs, 10kV/µs
1/0
30ns, 7ns
5MBd
25 mA
4.5V ~ 20V
8-SO Tall
8-SOIC (0.154', 3.90mm Width)
1
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
ACPL-064L-560E
Broadcom Limited
OPTOISO 3.75KV 2CH PUSH PULL 8SO
Sa stock12767 pcs
3750Vrms
Tape & Reel (TR)
ACPL-064
8mA
1.3V
80ns, 80ns
20kV/µs
2/0
12ns, 12ns
10MBd
10 mA
2.7V ~ 5.5V
8-SO Tall
8-SOIC (0.154', 3.90mm Width)
2
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 105°C
DC
-
RFQ
HCPL-2232-300E
Broadcom Limited
OPTOISO 3.75KV PUSH PULL 8DIP GW
Sa stock9398 pcs
3750Vrms
Tube
HCPL-2232
10mA
1.5V
300ns, 300ns
10kV/µs
2/0
30ns, 7ns
5MBd
25 mA
4.5V ~ 20V
8-DIP Gull Wing
8-SMD, Gull Wing
2
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
VO0611T
Vishay Semiconductor Opto Division
OPTOISO 4KV OPEN DRAIN 8SOIC
Sa stock39330 pcs
4000Vrms
Tape & Reel (TR)
VO0611
20mA
1.4V
100ns, 100ns
15kV/µs
1/0
23ns, 7ns
10MBd
50 mA
4.5V ~ 5.5V
8-SOIC
8-SOIC (0.154', 3.90mm Width)
1
Open Drain
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
ACPL-074L-000E
Broadcom Limited
OPTOISO 3.75KV 2CH PUSH PULL 8SO
Sa stock15806 pcs
3750Vrms
Tube
ACPL-074
20mA
1.5V
50ns, 50ns
10kV/µs
2/0
20ns, 25ns
15MBd
10 mA
3V ~ 3.6V, 4.5V ~ 5.5V
8-SO Tall
8-SOIC (0.154', 3.90mm Width)
2
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 105°C
DC
-
RFQ
FOD260LSD
Fairchild Semiconductor
LOGIC IC OUTPUT OPTOCOUPLER, 500
Sa stock4330 pcs
5000Vrms
Bulk
-
50mA
1.4V
90ns, 75ns
25kV/µs
1/0
22ns, 3ns
10Mbps
50 mA
3V ~ 5.5V
8-SMD
8-SMD, Gull Wing
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
ACPL-W60L-560E
Broadcom Limited
OPTOISO 5KV OPN COLL 6SO
Sa stock23908 pcs
5000Vrms
Tape & Reel (TR)
ACPL-W60
20mA
1.5V
75ns, 75ns
15kV/µs
1/0
24ns, 10ns
15MBd
50 mA
2.7V ~ 3.6V, 4.5V ~ 5.5V
6-SO
6-SOIC (0.268', 6.80mm Width)
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
PC900V0NIPXF
Sharp Microelectronics
OPTOISO 5KV OPEN COLLECTOR 6SMD
Sa stock5000 pcs
5000Vrms
Tape & Reel (TR)
-
50mA
1.1V
6µs, 3µs
-
1/0
100ns, 50ns
-
50 mA
3V ~ 15V
6-SMD
6-SMD, Gull Wing
1
Open Collector
Surface Mount
-25°C ~ 85°C
DC
OPIC™
RFQ
HCPL2601S
onsemi
OPTOISO 2.5KV OPN COLLECTOR 8SMD
Sa stock40547 pcs
2500Vrms
Tube
HCPL2601
50mA
1.4V
75ns, 75ns
5kV/µs
1/0
50ns, 12ns
10Mbps
50 mA
4.5V ~ 5.5V
8-SMD
8-SMD, Gull Wing
1
Open Collector
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
FOD0738
Fairchild Semiconductor
LOGIC IC OUTPUT OPTOCOUPLER
Sa stock10729 pcs
2500Vrms
Box
-
20mA
1.45V
60ns, 60ns
25kV/µs
2/0
12ns, 8ns
15MBd
2 mA
4.5V ~ 5.5V
8-SOIC
8-SOIC (0.154", 3.90mm Width)
2
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
HCPL-5631#300
Broadcom Limited
OPTOISO 1.5KV OPEN COLL 8DIP GW
Sa stock451 pcs
1500VDC
Bulk
HCPL-5631
20mA
1.5V
100ns, 100ns
1kV/µs
2/0
35ns, 35ns
10MBd
25 mA
4.5V ~ 5.5V
8-DIP Gull Wing
8-CSMD, Gull Wing
2
Open Collector, Schottky Clamped
Surface Mount
-55°C ~ 125°C
DC
-
RFQ
HCPL-2630
Broadcom Limited
OPTOISO 3.75KV 2CH OPEN COL 8DIP
Sa stock15007 pcs
3750Vrms
Tube
HCPL-2630
15mA
1.5V
100ns, 100ns
5kV/µs
2/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
8-DIP
8-DIP (0.300", 7.62mm)
2
Open Collector, Schottky Clamped
Through Hole
-40°C ~ 85°C
DC
-
RFQ
ACPL-4800-500E
Broadcom Limited
OPTOISO 3.75KV PUSH PULL 8DIP GW
Sa stock22074 pcs
3750Vrms
Tape & Reel (TR)
ACPL-4800
10mA
1.5V
350ns, 350ns
30kV/µs
1/0
16ns, 20ns
-
25 mA
4.5V ~ 20V
8-DIP Gull Wing
8-SMD, Gull Wing
1
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
8102801EC
Broadcom Limited
OPTOISO 1.5KV 2CH OPEN COL 16DIP
Sa stock384 pcs
1500VDC
Tube
8102801
20mA
1.55V
100ns, 100ns
1kV/µs
2/0
35ns, 35ns
10MBd
25 mA
4.5V ~ 5.5V
16-DIP
16-DIP (0.300", 7.62mm)
2
Open Collector, Schottky Clamped
Through Hole
-55°C ~ 125°C
DC
-
RFQ
HCPL-2601
Broadcom Limited
OPTOISO 3.75KV OPEN COLL 8DIP
Sa stock32479 pcs
3750Vrms
Tube
-
20mA
1.5V
100ns, 100ns
10kV/µs
1/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
8-DIP
8-DIP (0.300", 7.62mm)
1
Open Collector, Schottky Clamped
Through Hole
-40°C ~ 85°C
DC
-
RFQ
ACPL-W611-560E
Broadcom Limited
OPTOISO 5KV OPEN COLLECTOR 6SO
Sa stock19487 pcs
5000Vrms
Tape & Reel (TR)
ACPL-W611
20mA
1.5V
75ns, 75ns
10kV/µs
1/0
24ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
6-SO
6-SOIC (0.268', 6.80mm Width)
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
H11N1M
onsemi
OPTOISO 4.17KV OPN COLL 6DIP
Sa stock11475 pcs
4170Vrms
Tube
H11N1
30mA
1.4V
330ns, 330ns
-
1/0
7.5ns, 12ns
5MHz
50 mA
4V ~ 15V
6-DIP
6-DIP (0.300", 7.62mm)
1
Open Collector
Through Hole
-40°C ~ 85°C
DC
-
RFQ
PS9214-A
CEL
OPTOISO 2.5KV OPN COLLECTOR 5SOP
Sa stock4120 pcs
2500Vrms
Bulk
-
30mA
1.65V
75ns, 75ns
10kV/µs
1/0
20ns, 10ns
10Mbps
25 mA
4.5V ~ 5.5V
5-SO
6-SOIC (0.173', 4.40mm Width), 5 Leads
1
Open Collector
Surface Mount
-40°C ~ 85°C
DC
NEPOC
RFQ
HCPL-5601
Broadcom Limited
OPTOISO 1.5KV OPN COLLECTOR 8DIP
Sa stock361 pcs
1500VDC
Bulk
HCPL-5601
20mA
1.5V
100ns, 100ns
1kV/µs
1/0
35ns, 35ns
10MBd
25 mA
4.5V ~ 5.5V
8-DIP
8-DIP (0.300', 7.62mm)
1
Open Collector, Schottky Clamped
Through Hole
-55°C ~ 125°C
DC
-
RFQ
FOD0708R2
onsemi
OPTOISO 2.5KV PUSH PULL 8SO
Sa stock5140 pcs
2500Vrms
Tape & Reel (TR)
FOD070
20mA
1.45V
60ns, 60ns
25kV/µs
1/0
12ns, 8ns
15MBd
2 mA
4.5V ~ 5.5V
8-SOIC
8-SOIC (0.154', 3.90mm Width)
1
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
TLP155E(E)
Toshiba Semiconductor and Storage
OPTOISO 3.75KV PSH PULL 6SO-5
Sa stock3750 pcs
3750Vrms
Tube
TLP155
20mA
1.55V
170ns, 170ns
15kV/µs
1/0
35ns, 15ns
-
-
10V ~ 30V
6-SO, 5 Lead
6-SOIC (0.179", 4.55mm Width), 5 Leads
1
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 100°C
DC
-
RFQ
HCPL-061N
Broadcom Limited
OPTOISO 3.75KV OPN COLLECTOR 8SO
Sa stock12114 pcs
3750Vrms
Tube
HCPL-061
10mA
1.3V
100ns, 100ns
1kV/µs
1/0
42ns, 12ns
10MBd
50 mA
4.5V ~ 5.5V
8-SO Tall
8-SOIC (0.154", 3.90mm Width)
1
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 85°C
DC
-
RFQ
ACPL-077L-000E
Broadcom Limited
OPTOISO 3.75KV PUSH PULL 8SO
Sa stock20410 pcs
3750Vrms
Tube
ACPL-077
-
-
40ns, 40ns
35kV/µs
1/0
4ns, 3ns
25MBd
10 mA
3V ~ 3.6V, 4.5V ~ 5.5V
8-SO Tall
8-SOIC (0.154', 3.90mm Width)
1
Push-Pull, Totem Pole
Surface Mount
-40°C ~ 105°C
Logic
-
RFQ
HCPL-260L-000E
Broadcom Limited
OPTOISO 3.75KV OPEN COLL 8DIP
Sa stock27130 pcs
3750Vrms
Tube
HCPL-260
20mA
1.5V
75ns, 75ns
10kV/µs
1/0
24ns, 10ns
15MBd
50 mA
2.7V ~ 3.6V, 4.5V ~ 5.5V
8-DIP
8-DIP (0.300', 7.62mm)
1
Open Collector, Schottky Clamped
Through Hole
-40°C ~ 85°C
DC
-
RFQ
6N137A-X017T
Vishay Semiconductor Opto Division
OPTOISO 5KV 1CH OPEN COLL 8SMD
Sa stock53540 pcs
5000Vrms
Tape & Reel (TR)
6N137
20mA
1.35V
75ns, 75ns
1kV/µs
1/0
27ns, 10ns
10MBd
50 mA
4.5V ~ 5.5V
8-SMD
8-SMD, Gull Wing
1
Open Collector
Surface Mount
-40°C ~ 85°C
DC
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RFQ
ACSL-6410-06TE
Broadcom Limited
OPTOISO 2.5KV 4CH OPEN COLL 16SO
Sa stock9286 pcs
2500Vrms
Tube
ACSL-6410
15mA
1.52V
100ns, 100ns
10kV/µs
3/1
30ns, 12ns
15MBd
50 mA
3V ~ 5.5V
16-SOIC
16-SOIC (0.154", 3.90mm Width)
4
Open Collector, Schottky Clamped
Surface Mount
-40°C ~ 100°C
DC
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RFQ