Würth Elektronik WL-OCPT SMD Fototransistor / Phototransistor-Out, 4-Pin SOP
Lifecycle: Active Supply Risk Score and Supply Risk Trend are available on Pro and Enterprise. Watchlist (Pro)
Datasheets:Datasheet (Farnell)
Country of origin: CNRoHS Compliant MSL MSL 1

Farnell(1/4)
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View PlansConfirmed Stock
54,433
4 of 6 suppliers stocked
Best Unit Price
—
Availability
4of 6 suppliers
Fastest delivery: 98 days
Shortest factory lead: 14 weeks
Stock by Supplier
Stock & Availability
| Supplier | Supplier Part Number | Stock | Delivery | Factory Lead | MOQ | Packaging | Status |
|---|---|---|---|---|---|---|---|
140357145400 | 47,270 | 98 days | — | Minimum order quantity 1Order multiple 3,000 | 13'' Plastic Reel | In Stock | |
| 4,451 | — | 14 weeks | Minimum order quantity 1Order multiple 3,000 | Reel, Cut Tape, MouseReel | In Stock | ||
| 931 | 98 days | — | Minimum order quantity 1 | — | In Stock | ||
| 931 | 98 days | — | Minimum order quantity 100 | — | In Stock | ||
| 850 | — | — | Minimum order quantity 50Order multiple 50 | PK | In Stock | ||
| 0 | — | — | Minimum order quantity 3,000Order multiple 3,000 | RL | No Stock |
Supplier Part Details
| Supplier | Description | RoHS | MSL | Life Cycle | SVHC | Category | Country | Weight | Tariff Code | Packaging | Links |
|---|---|---|---|---|---|---|---|---|---|---|---|
Würth Elektronik 140357145400 | WL-OCPT Optocoupler Phototransistor | Yes | MSL 1 | Active | — | Optocoupler | CN | 0.0725 g | 85414900000 (EU national) | 13'' Plastic Reel | |
Farnell 3619708 | WURTH ELEKTRONIK - 140357145400 - Optokoppler, 1 Kanal, SOP, 4 Pin(s), 60 mA, 3.75 kV, 300 % | Yes | — | Active | No SVHC (04-Feb-2026) | — | CN | — | 85414900 (EU CN) | — | |
Farnell 3619708RL | WURTH ELEKTRONIK - 140357145400 - Optokoppler, 1 Kanal, SOP, 4 Pin(s), 60 mA, 3.75 kV, 300 % | Yes | — | Active | No SVHC (04-Feb-2026) | — | CN | — | 85414900 (EU CN) | — | |
RS 2385831 | Würth Elektronik WL-OCPT SMD Fototransistor / Phototransistor-Out, 4-Pin SOP | — | — | — | — | — | — | — | — | PK | |
RS 2385830 | Würth Elektronik WL-OCPT SMD Fototransistor / Phototransistor-Out, 4-Pin SOP | — | — | — | — | — | — | — | — | RL | |
Mouser 710-140357145400 | Transistor Output Optocouplers WL-OCPT 35V 3.75KVrm 10pF SOP 4 V-Type | Yes | — | — | — | Transistor Output Optocouplers | — | — | 8541490000 | Reel, Cut Tape, MouseReel |
Technical Attributes
Collector Current [min.].0.05Ampere
Collector Emitter Voltage35Volt
Collector-Emitter Breakdown Voltage [min.].35Volt
Collector-Emitter Dark Current [max.].1E-07Ampere
Collector-Emitter Saturation Voltage [max.]0.2Volt
Collector-Emitter Saturation Voltage [typ.]0.06Volt
CQC ApprovalCQC20001274583
CQC Approval StandardGB4943.1-2001; GB8898-2011
cULus ApprovalE513104
cULus Approval StandardUL 1577
Current Transfer Ratio600Percentage
Current Transfer Ratio300Percentage
Cut-Off Frequency80000Hertz
Date-CodeYWW
Emitter Collector Voltage7Volt
Emitter-Collector Breakdown Voltage [min.].7Volt
ESD ApprovalYes
Fall Time [max.].1.8E-05Second
Fall Time [typ.].4E-06Second
Floating Capacitance [typ.]4E-13Farad
Forward Current0.06Ampere
Forward Voltage [max.].1.4Volt
Forward Voltage [typ.].1.24Volt
Halogen Free ApprovalIEC 61249-2-21
Halogen Free ApprovalConform
Halogen Free ApprovalConform
Halogen Free ApprovalJEDEC JS709B
Height0.002Meter
InputDC
Input Capactiance [typ.]1E-11Farad
Input Power Dissipation0.1Watt
Isolation Resistance [min.]1000000000000Ohm
Isolation Resistance [typ.]100000000000000Ohm
Isolation Voltage3750Volt
Length0.0044Meter
Life Cycle TimeEstimated lifetime > 10 years
Marketing ChangesDrawngs changed
Marking357D (Series 357, Binning D)
Max. Operating Temperature110Degree Celsius
Min. Operating Temperature-55Degree Celsius
MountSMT
Output Power Dissipation0.15Watt
PackageSOP 4
Peak Forward Current1Ampere
Plastic Housing ColorWhite
Power Dissipation0.2Watt
REACh ApprovalConform or declared
REACh Approval(EC)1907/2006
Relative Humidity75Percentage/Relativehumidity
Reverse Current [max.].1E-05Ampere
Reverse Voltage6Volt
Rise Time [max.].1.8E-05Second
Rise Time [typ.].3E-06Second
Series357
SizeSOP4
StatusValid
Storage Condions (for single parts)-55Degree Celsius
Storage Condions (for single parts)125Degree Celsius
TypeOptocoupler Phototransistor
UL ApprovalUL 1577
UL ApprovalE513104
VDE ApprovalDIN EN 60747-5-5 (VDE0884-5); EN 60747-5-5:2011; A1:2015
VDE Approval40051484
Width0.0036Meter