PS2815-1-F3-A CEL Integrated Circuit (Small Outline Packages) In Stock
CEL PS2815-1-F3-A is a single-channel transistor-output optocoupler with high current transfer ratio (CTR) and AC input capability in a small outline package. Provides 5 kV isolation voltage with fast response for digital signal isolation and AC detection. Available from stock worldwide.
- Manufacturer
- CEL
- Package
- Small Outline Packages
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- PS2815-1-F3-A Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3719(MOQ 100)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High CTR (current transfer ratio) up to 300% at 5 mA input current, enabling reliable transistor output switching with minimal drive current
- AC input capability accepts bipolar alternating input signals without polarity restriction, simplifying AC line detection and zero-crossing circuits
- 5 kV isolation voltage between input and output sides for galvanic separation in industrial control, medical, and power conversion applications
- Single-channel 1-Ch configuration in compact small outline package (SOP) minimizing board space versus multi-channel alternatives
- High-speed transistor output with response times under 5 µs supports digital signal isolation up to 100 kHz switching frequencies
Applications
The PS2815-1-F3-A is designed for AC line detection, digital signal isolation, and gate drive isolation in switching power supplies, industrial PLCs, and motor control circuits requiring a 5 kV galvanic barrier. Its high CTR enables the transistor output to drive microcontroller inputs directly without additional amplification when input LED currents are kept between 1 mA and 10 mA. The AC input configuration is also used in zero-crossing detectors for TRIAC firing circuits and in feedback isolation for flyback converters operating from 85 V to 265 V AC mains.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PS2815-1-F3-A:
suggested
suggested
Frequently Asked Questions
What isolation voltage does PS2815-1-F3-A provide, and which safety standards does it meet for industrial control applications?
The PS2815-1-F3-A provides 5 kV isolation voltage between the LED input and transistor output sides, meeting the creepage and clearance requirements for industrial safety isolation in systems operating from 250 V AC mains. This isolation level is compliant with UL 1577 optocoupler standards and supports functional isolation in IEC 61010-1 Class II equipment, making the PS2815-1-F3-A suitable for PLC digital input modules, industrial motor drives, and power supply feedback loops requiring galvanic separation.
What is the current transfer ratio of PS2815-1-F3-A, and how does the high CTR benefit low-power microcontroller interfacing?
The PS2815-1-F3-A offers a high current transfer ratio of up to 300% at a forward LED current of 5 mA, meaning a 5 mA input produces up to 15 mA of output collector current. This high CTR allows the transistor output to directly source enough current to drive standard CMOS and TTL inputs without any intermediate amplifier stage, reducing the total component count by 2 to 3 parts in microcontroller interface circuits and keeping the PCB footprint minimal.
How does the AC input capability of PS2815-1-F3-A simplify AC zero-crossing detection circuits?
The AC input of PS2815-1-F3-A accepts both positive and negative half-cycles of an alternating current input signal, eliminating the need for a bridge rectifier or blocking diode that would otherwise be required with standard unidirectional optocouplers. In a typical 50 Hz or 60 Hz zero-crossing detector, this allows the circuit to be simplified to a single current-limiting resistor of approximately 100 kΩ in series with the AC line, and the output transistor switches twice per AC cycle, giving the microcontroller a clean 100 Hz or 120 Hz interrupt for synchronizing TRIAC firing angles.
What switching speed does PS2815-1-F3-A support, and is it fast enough for digital isolation in a 10 kHz PWM signal path?
The PS2815-1-F3-A achieves transistor output response times typically under 5 µs for both turn-on and turn-off, which corresponds to a signal bandwidth of approximately 100 kHz, well above the 10 kHz frequency required to faithfully reproduce a 10 kHz PWM signal with duty cycles from 10% to 90%. At 10 kHz PWM, each pulse period is 100 µs with minimum pulse widths of 10 µs, so the 5 µs propagation delay introduces less than 5% duty cycle distortion, which is acceptable for most motor control and power supply feedback applications.
In which package does PS2815-1-F3-A come, and how does its footprint compare to a DIP optocoupler for the same function?
The PS2815-1-F3-A is housed in a small outline package (SOP) with a footprint of approximately 5.0 mm x 4.0 mm, which is roughly 60% smaller in board area than a standard 4-pin DIP optocoupler occupying 7.6 mm x 6.4 mm. The SOP package also reduces component height to under 2 mm compared to 4 mm for a through-hole DIP, enabling its use in slim industrial I/O cards and surface-mount only PCBs where through-hole components are prohibited by the assembly process.
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About CEL
CEL is a leading electronic component manufacturer. FindMyChip sources CEL ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.6146 | $61.46 |
| 500+ | $0.5364 | $268.20 |
| 1000+ | $0.3719 | $371.90 |
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