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Renesas Electronics PS2533-1-A — Optoisolators
Renesas Electronics

PS2533-1-A NEPOC Optoisolator, 5000Vrms Darlington 4-DIP

MPNPS2533-1-A
End of Life

Renesas NEPOC PS2533-1-A, 1-channel DC-input Darlington output optocoupler, 5000Vrms isolation, 1500% to 6500% CTR at 1mA, 350V output max, 150mA output current, 4-DIP through-hole package, -55°C to 100°C.

$1.99Ref. price · indicative, final on quote
PS2533-1-A datasheet
Packaging4-DIP (0.300", 7.62mm)
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

PS2533-1-A Technical Specifications
ParameterValue
SeriesNEPOC
Input typeDC
Output typeDarlington
Mounting typeThrough Hole
Voltage - isolation5000Vrms
Voltage - output350V
Voltage - forward (Vf)1.15V
Current - output (Channel)150mA
Current transfer ratio6500% @ 1mA
Current - DC forward (If)80 mA
Operating temperature-55°C ~ 100°C
PackageTube
Case4-DIP (0.300\", 7.62mm)
Number of channels1
Vce saturation1V
Rise (Fall time)100µs, 100µs

Product details

The Renesas NEPOC PS2533-1-A is a single-channel, DC-input Darlington-output optocoupler in a 4-DIP through-hole package. It provides 5000Vrms of galvanic isolation between a low-voltage control side and a high-voltage load side, with a Darlington output stage that delivers a current transfer ratio (CTR) ranging from 1500% to 6500% at a forward current of 1mA. This high CTR means the input LED can be driven with very low current while still saturating the output transistor, making it suitable for interfaces where the control signal is weak or power-constrained. The output can switch up to 350V and 150mA, enough to drive relays, solenoids, or small motors directly without an external driver transistor. The -55°C to 100°C operating temperature range covers industrial control panels, HVAC systems, and power-supply feedback loops where wide ambient swings are expected.

The 5000Vrms isolation voltage qualifies the part for reinforced insulation in mains-connected equipment. The 1500% to 6500% CTR range at 1mA is due to the Darlington configuration.

Frequently asked questions

What is the current transfer ratio of PS2533-1-A?

The PS2533-1-A has a CTR range of 1500% to 6500% at a forward current of 1mA. This wide range is due to the Darlington output stage, which provides high gain but also means the design must accommodate the minimum CTR for guaranteed saturation.

Does PS2533-1-A require a base resistor for the Darlington input?

The input is a standard LED with a forward voltage of 1.15V typical and a maximum forward current of 80mA. A current-limiting resistor is required in series with the LED; the value is calculated from the supply voltage minus Vf, divided by the desired If (typically 1mA to 10mA for the CTR range). No separate base resistor is needed because the Darlington pair has internal base-emitter resistors.