PS2501L-1-A CEL Diode (Small Outline Packages) In Stock
PS2501L-1-A is a single-channel surface-mount photocoupler from CEL with 5000 V isolation voltage and 300% current transfer ratio. Supports up to 80 V collector-emitter breakdown voltage with 80 mA forward current. Available in compact SOP-4 package with UL recognition.
- Manufacturer
- CEL
- Package
- Small Outline Packages
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- PS2501L-1-A Datasheet PDF
- Category
- Diode
- Price
- From $0.2515(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 for high-voltage safety compliance in industrial applications
- 300% current transfer ratio (CTR) enabling efficient signal transmission with low drive current
- Compact SOP-4 surface-mount package reducing PCB footprint versus DIP alternatives
- UL recognized with lead-free construction meeting RoHS environmental requirements
Applications
PS2501L-1-A is widely used in industrial control systems and power supply designs where galvanic isolation between low-voltage logic circuits and high-voltage power stages is required. The device suits AC/DC converters, motor drive feedback paths, and programmable logic controller (PLC) I/O interfaces. Its high isolation voltage of 5000 V and compact SMD form factor also make it a reliable choice for medical equipment and telecommunications line-card designs.
Specifications
| YTEOL | 0 |
| Additional Feature | UL RECOGNIZED |
| Coll-Emtr Bkdn Voltage-Min | 80V |
| Configuration | SINGLE |
| Current Transfer Ratio-Nom | 300% |
| Dark Current-Max | 100nA |
| Forward Current-Max | 0.08A |
| 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 | Small Outline 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 PS2501L-1-A:
Frequently Asked Questions
What isolation voltage does the PS2501L-1-A provide, and why does it matter for industrial designs?
The PS2501L-1-A provides 5000 V isolation voltage between input and output, making it suitable for industrial motor drives, SMPS feedback loops, and safety-critical circuits where high-voltage transient protection is required. This rating exceeds the 2500 V found in standard optocouplers, giving designers additional margin for IEC 60950 compliance.
How does the 300% current transfer ratio of PS2501L-1-A affect drive circuit design?
A 300% CTR means the PS2501L-1-A can deliver up to 3 times the output collector current relative to the 80 mA maximum input forward current, allowing designers to use smaller base resistors and reduce power dissipation in the drive stage. This high CTR is advantageous in logic-level interfaces operating at 3.3 V or 5 V where drive current budget is limited.
Which alternative CEL or competing optocoupler can replace PS2501L-1-A in a 4-channel configuration?
For 4-channel isolation in the same SOP package family, the PS2501L-4 provides four optocoupler channels on a single IC while maintaining the 5000 V isolation rating and compatible CTR of 300%. Competing alternatives include the Vishay SFH6156 and the ON Semiconductor HCPL-314J, both offering similar breakdown voltages of 80 V and SMD packaging options.
What is the maximum collector-emitter breakdown voltage of PS2501L-1-A and how does it constrain output circuit design?
The PS2501L-1-A has a maximum collector-emitter breakdown voltage (BVCEO) of 80 V, which sets the upper rail limit for the output-side circuit. Designers must ensure that the supply voltage on the collector side does not exceed 80 V under any transient condition, and should include voltage clamping if the application involves inductive loads or flyback spikes above 60 V.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7500 | $0.75 |
| 25+ | $0.3000 | $7.50 |
| 400+ | $0.2716 | $108.64 |
| 800+ | $0.2702 | $216.16 |
| 1600+ | $0.2515 | $402.43 |
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