COSMO KPS2801/KPS28010CTLD

Mfr. Part

KPS2801 / KPS28010CTLD

Manufacturer

COSMO. Y-IC is a quality distributor for COSMO. We stand behind the brand and will provide you with the best products and responsive, professional services.

Detailed Description

Single-channel phototransistor optocoupler in SOP-4. LED input (infrared) optically drives an NPN phototransistor output to provide galvanic isolation between low-voltage control and higher-voltage or noisy circuits. Footprint and function align with the industry-standard PS2801 class devices. Category: Integrated Circuits (ICs), Specialized ICs. Current stock: 4200 units. Date code: 14+PB (lead-free, RoHS-friendly).

Key Features

Optocoupler, LED to NPN phototransistor isolation

SOP-4 surface-mount package; compact and easy to place

Industry-standard pinout and footprint (PS2801 class)

Wide CTR bin options for design flexibility (suffix defines CTR group)

High isolation voltage (industry-typical for SOP-4 optocouplers)

Low coupling capacitance for better noise immunity

RoHS compliant, Pb-free plating

Tape-and-reel availability for automated SMT lines

Key Advantages

Simple, robust isolation between logic and power domains

Drop-in compatible with many PS2801-type alternatives

Stable performance across temperature and aging in typical designs

Low power input drive (LED) reduces system load

SMD SOP-4 saves PCB space vs. DIP packages

Supports fast production with standard SMT processes

Y-IC backs the supply with quality assurance and technical support

Packaging

Type: SOP-4 (Small Outline Package, 4 leads), surface-mount

Material: Epoxy mold compound; copper leadframe; matte tin plating (Pb-free)

Size: Compact SOP-4 outline compatible with PS2801-style footprints (see datasheet for exact dimensions and land pattern)

Delivery: Tape-and-reel for automated placement; ideal for high-volume builds

Pin configuration (typical for PS2801-class):

- Pin 1: Anode (LED+)

- Pin 2: Cathode (LED−)

- Pin 3: Emitter (Transistor)

- Pin 4: Collector (Transistor)

Thermal characteristics (typical for SOP-4 optocouplers):

- Moisture Sensitivity Level: usually Level 2–3 (confirm in datasheet)

- Operating temperature: wide industrial range (confirm exact limits in datasheet)

- Low self-heating at recommended currents

Electrical properties (industry-typical ranges; verify exact bin and lot in datasheet):

- Isolation voltage: high dielectric strength suitable for signal isolation

- CTR (Current Transfer Ratio): multiple bins available to match design needs

- LED forward voltage: low Vf for easy drive from logic rails

- Transistor ratings: collector-emitter voltage and current adequate for signal-level interfacing

Package/Case code reference: 596 (supplier code)

DateCode: 14+PB (lead-free process)

Lifecycle

Status: Active with no formal end-of-life notice known at the time of writing

Second-source and functionally similar alternatives (verify pinout, CTR grade, isolation voltage, creepage, and approvals before substitution):

- Renesas PS2801-1 series (direct PS2801-class reference)

- Toshiba TLP281 series (SOP-4, phototransistor output)

- LiteOn LTV-817S series (SMD variant of the classic 817 optocoupler)

- Everlight EL357N series (SOP-4 optocoupler)

- onsemi FOD817S series (SMD PC817-class)

- Vishay VO617A SMD variants (check SOP options and pinout)

- Broadcom/Avago HCPL-817S SMD variants (verify footprint)

If you need an exact electrical match or certified alternatives, contact our sales team via our website. We will recommend parts that fit your CTR group, isolation rating, approvals, and footprint.

Key Application Areas

SMPS feedback and primary-secondary signal isolation

Microcontroller to high-voltage interface isolation

Gate signal isolation for triacs, MOSFETs, and IGBTs (signal level)

PLC digital input/output isolation

Battery management and charger communication isolation

Motor control signal isolation and noise suppression

Industrial sensors, alarms, and instrumentation interfaces

Consumer electronics and white goods control boards

Datasheet

Our website hosts the most authoritative datasheet for this COSMO model. For accurate dimensions, CTR bin details, electrical limits, thermal ratings, and reel specifications, download the datasheet on this page now.

Request for Quotation Now

Get a Quote on our website today. Learn More and secure your supply. Limited Time Offer for available stock of 4200 pcs—act now to lock in pricing and delivery.