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Renesas Electronics PS9851-2-V-F3-AX — Optoisolators
Renesas Electronics

PS9851-2-V-F3-AX NEPOC Optoisolator, 15 Mbps, 2500 Vrms

MPNPS9851-2-V-F3-AX
End of Life

Renesas NEPOC series PS9851-2-V-F3-AX dual-channel push-pull optoisolator, 15 Mbps data rate, 2500 Vrms isolation, 10 kV/µs CMTI, 4.5V to 5.5V supply, -40°C to 100°C, 8-SOIC package.

$6.9Ref. price · indicative, final on quote
PS9851-2-V-F3-AX datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

PS9851-2-V-F3-AX Technical Specifications
ParameterValue
SeriesNEPOC
Input typeDC
Output typePush-Pull, Totem Pole
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Voltage - isolation2500Vrms
Voltage - forward (Vf)1.6V
Current - output (Channel)2 mA
Current - DC forward (If)20mA
Operating temperature-40°C ~ 100°C
PackageTape & Reel (TR); Cut Tape (CT)
Data rate15Mbps
Case8-SOIC (0.154\", 3.90mm Width)
Number of channels2
Inputs - side 1/Side 22/0
Rise (Fall time)4ns, 4ns
Propagation delay tpLH (tpHL)60ns, 60ns
Common mode transient immunity10kV/µs

Product details

Active dual-channel optoisolator for industrial isolation

The Renesas PS9851-2-V-F3-AX is a dual-channel, push-pull output optoisolator from the NEPOC series, rated for 2500 Vrms isolation and a 15 Mbps data rate. It integrates two isolated channels in a single 8-pin SOIC package, with a totem-pole output that eliminates the need for a pull-up resistor on the logic side. Typical applications include digital isolation for industrial fieldbus interfaces, PLC digital I/O modules, motor-drive feedback paths, and isolated sensor links where common-mode transient immunity of 10 kV/µs is required to reject fast switching noise.

The 15 Mbps data rate and 60 ns max propagation delay (tpLH / tpHL) place this part in the speed tier needed for isolating CAN transceivers, RS-485 lines, and high-speed digital I/O without adding a full clock cycle of latency. The push-pull output drives a logic rail directly at 2 mA per channel, so no external pull-up or pull-down resistor is needed on the output side — a BOM simplification that also saves board area. Rise and fall times are typically 4 ns, keeping signal edges clean enough for 15 Mbps NRZ data.

Isolation and CMTI — fit for motor-drive and inverter environments

With 2500 Vrms isolation and a minimum common-mode transient immunity of 10 kV/µs, this optoisolator is sized for basic isolation in industrial equipment where fast-switching IGBTs or SiC MOSFETs create high dV/dt events across the isolation barrier. The 10 kV/µs CMTI rating means the output will not glitch when a 10 kV/µs common-mode step appears across the barrier — a key parameter for gate-drive feedback, current-sense isolation, and inverter-phase voltage sensing.

Supply voltage and input drive

The input side is a DC-coupled LED with a typical forward voltage of 1.6 V and a maximum forward current of 20 mA. For a 5 V logic input, a series resistor of about 180 Ω sets the LED current near 16 mA, which is within the 20 mA max and provides sufficient optical drive for the 15 Mbps switching. The input side has two channels (inputs side 1/side 2: 2/0), meaning both LED inputs are on the same side of the package.

Lifecycle and compliance

It is ROHS3 compliant, meeting the latest EU restriction-of-hazardous-substances directive for lead-free soldering and material composition.

Frequently asked questions

Can PS9851-2-V-F3-AX be used with a 3.3V supply?

The part is designed for a 5 V logic supply.

Is PS9851-2-V-F3-AX RoHS compliant?

Yes, the PS9851-2-V-F3-AX is ROHS3 compliant, meeting the latest EU RoHS directive for lead-free materials.

How does PS9851-2-V-F3-AX compare to the HCPL-2531?

The HCPL-2531 is a dual-channel optocoupler with open-collector output and a lower data rate (typically 1 Mbps). The PS9851-2-V-F3-AX offers a push-pull output at 15 Mbps, eliminating the external pull-up resistor and supporting faster bus speeds. The PS9851-2 also provides 2500 Vrms isolation versus the HCPL-2531's 2500 Vrms, but with higher CMTI (10 kV/µs vs typically 1 kV/µs). The two parts are not pin-compatible; the PS9851-2 is a higher-speed, higher-noise-immunity alternative for new designs.