PS2501A-1-A CEL Integrated Circuit (Dual-In-Line Packages) In Stock
PS2501A-1-A is a single-channel phototransistor optocoupler from CEL in a DIP-4 package with 5000 V isolation voltage and 70 V collector-emitter breakdown voltage. It delivers a current transfer ratio of 50% at up to 30 mA forward current with a dark current below 100 nA. This UL-approved device targets industrial control, power supply feedback, and signal isolation applications.
- Manufacturer
- CEL
- Package
- Dual-In-Line Packages
- Pin Count
- 4
- Lifecycle
- CONTACT MANUFACTURER
- Datasheet
- PS2501A-1-A Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1677(MOQ 1)
- Temp Range
- -55.0°C to 100.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5000 V isolation voltage provides robust galvanic separation for safety-critical industrial applications
- 70 V collector-emitter breakdown voltage suits high-voltage signal-isolation designs
- 50% current transfer ratio at 30 mA enables reliable signal coupling with low LED drive current
- Single-channel DIP-4 package simplifies through-hole PCB assembly and prototyping
- UL approval confirms compliance with safety standards for industrial and consumer equipment
Applications
The PS2501A-1-A is used in industrial control systems, switching power supply feedback loops, and programmable logic controller (PLC) I/O interfaces where galvanic isolation up to 5000 V is required between high-voltage and low-voltage circuits. It is also found in medical equipment power supplies and home appliance motor controllers that need UL-approved isolation to meet safety regulations. Its single-channel DIP-4 form factor makes it convenient for prototype development and low-density board designs.
Specifications
| YTEOL | 2 |
| Additional Feature | UL APPROVED |
| Coll-Emtr Bkdn Voltage-Min | 70V |
| Configuration | SINGLE |
| Current Transfer Ratio-Nom | 50% |
| Dark Current-Max | 100nA |
| Forward Current-Max | 0.03A |
| Isolation Voltage-Max | 5000V |
| JESD-609 Code | e6 |
| Number of Elements | 1 |
| Optoelectronic Device Type | TRANSISTOR OUTPUT OPTOCOUPLER |
| Terminal Finish | Tin/Bismuth (Sn/Bi) |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8541.40.80.00 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PS2501A-1-A:
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suggested
Frequently Asked Questions
How much galvanic isolation does the PS2501A-1-A provide, and which safety standards does it meet?
The PS2501A-1-A provides 5000 V isolation voltage between the input LED and the output phototransistor, meeting UL approval requirements for use in industrial and consumer equipment. This high isolation level makes it suitable for applications where mains-level voltages must be separated from low-voltage logic circuits to protect users and downstream components.
What is the current transfer ratio of PS2501A-1-A and how does it affect LED drive current requirements?
The PS2501A-1-A has a nominal current transfer ratio of 50% at a forward current of 30 mA, meaning a 10 mA LED input produces approximately 5 mA of collector current at the output. Designers can use this ratio to select appropriate pull-up resistors and ensure the output transistor switches cleanly when driving logic inputs in isolation barrier circuits.
For a PLC digital input module needing 5000 V isolation, how does PS2501A-1-A compare to a 2500 V-rated optocoupler?
The PS2501A-1-A's 5000 V isolation rating doubles the creepage-distance margin versus a typical 2500 V-rated optocoupler, making it suitable for IEC 61010-1 reinforced insulation requirements in industrial PLCs. The higher breakdown margin also provides better surge and transient immunity in electrically noisy environments, reducing the risk of isolation failure over the product lifetime.
In which package does the PS2501A-1-A come and how does it affect board assembly options?
The PS2501A-1-A is housed in a 4-pin DIP (Dual In-Line Package) with 2.54 mm lead pitch, which suits through-hole PCB assembly and breadboard prototyping. The DIP-4 package allows manual soldering and easy replacement during development, and its 70 V collector-emitter breakdown voltage supports a wide range of industrial interface circuits.
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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 |
|---|---|---|
| 1+ | $0.4526 | $0.45 |
| 400+ | $0.1930 | $77.21 |
| 800+ | $0.1920 | $153.63 |
| 1000+ | $0.1677 | $167.66 |
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