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onsemi FOD2741BV — Optoisolators

FOD2741BV onsemi Optoisolator 5000Vrms Transistor Output

MPNFOD2741BV
Active

onsemi FOD2741BV, single-channel optoisolator, 8-DIP through-hole package, DC input, transistor output, 5000Vrms isolation, 100-200% CTR at 10mA, -40°C to 85°C, tube.

$1.7900Ref. price · indicative, final on quote
onsemi FOD2741BV datasheet (PDF)
Packaging8-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

FOD2741BV specifications
ParameterValue
Input typeDC
Output typeTransistor
MountingThrough Hole
Voltage - isolation5000Vrms
Voltage - output30V
Voltage - forward (Vf)1.5V (Max)
Current - output (Channel)50mA
Current transfer ratio200% @ 10mA
Operating temperature-40°C ~ 85°C
PackageTube
Case8-DIP (0.300\", 7.62mm)
Channels1
Vce saturation400mV

Product details

Active 5000Vrms isolated transistor-output coupler

The FOD2741BV is an onsemi single-channel optoisolator in the standard 8-DIP through-hole package, delivering 5000Vrms galvanic isolation between a DC-input LED and a phototransistor output. Current transfer ratio is specified from 100% to 200% at a forward current of 10mA — that spread tells you the minimum gain the phototransistor will deliver at nominal drive, which matters for logic-level translation and for worst-case margin in feedback loops.

Parametric anchor points for the BOM

The output transistor can sink up to 50mA continuous per channel, with a Vce saturation maximum of 400mV. Maximum output voltage is 30V, so this part works directly with 24V industrial buses without an extra level shifter on the collector side. Forward voltage is 1.5V max at rated If.

Frequently asked questions

How can I order FOD2741BV or check its current stock and price?

Submit an RFQ with your target quantity — pricing and availability are confirmed at quote time. The part is Active (no EOL) and sourced through our independent distribution desk, so we can quote against your BOM line. No real-time stock number is published here; the quote will reflect the current market.