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onsemi HCPL0639R2 — Discrete Semiconductors

HCPL0639R2 onsemi Optoisolator – 10 Mbps, 25 kV/µs, 8-SOIC

MPNHCPL0639R2
Active

onsemi HCPL0639R2 dual-channel optocoupler, 10 Mbps data rate, 25 kV/µs common-mode transient immunity, open-collector Schottky-clamped output, 3750 Vrms isolation, 8-SOIC surface-mount package, Tape & Reel (TR) / Cut Tape (CT).

$6.1500Ref. price · indicative, final on quote
onsemi HCPL0639R2 datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

HCPL0639R2 specifications
ParameterValue
Input typeDC
Output typeOpen Collector, Schottky Clamped
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Voltage - isolation3750Vrms
Voltage - forward (Vf)1.75V (Max)
Current - output (Channel)15 mA
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR) Cut Tape (CT)
Data rate10Mbps
Case8-SOIC (0.154\", 3.90mm Width)
Channels2
Inputs - side 1/Side 22/0
Rise (Fall time)17ns, 5ns
Propagation delay tpLH (tpHL)75ns, 75ns
Common mode transient immunity25kV/µs

Product details

Dual-channel optocoupler for noisy industrial buses

The HCPL0639R2 is a dual-channel optocoupler from onsemi that delivers a 10 Mbps data rate with an open-collector Schottky-clamped output — a combination that suits isolated digital interfaces like CAN, RS-485, and PLC backplanes where the bus runs at 5V logic levels.

Switching speed and noise rejection

The 75 ns max propagation delay (tpLH / tpHL) and 17 ns typical rise time keep the output edges clean enough for 10 Mbps signalling — the Schottky clamp on the output transistor prevents saturation lag, so the fall time stays at 5 ns typ. Compared to the HCPL0637R2 (5 kV/µs CMTI), this part offers 5× the transient immunity, which is the deciding factor when the optocoupler sits on a 600V switching node; the HCPL0638R2 sits in between at 10 kV/µs.

Frequently asked questions

What is the difference between HCPL0639 and HCPL0639R2?

The electrical specs are identical — 10 Mbps, 25 kV/µs CMTI, same pinout. The difference is packaging: HCPL0639 ships in a tube, while HCPL0639R2 ships on Tape & Reel (TR) or Cut Tape (CT), which is the reel format preferred for automated pick-and-place assembly.

Is HCPL0639R2 RoHS compliant?

Yes, it is ROHS3 compliant.