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PS2501-1-Q-A Equivalent & Substitute Parts
Part Overview
The PS2501-1-Q-A is a single-channel optoisolator with transistor output, rated for 5000Vrms isolation voltage. This component is designed for applications requiring galvanic isolation between input and output circuits in industrial control, power management, and signal conditioning systems.
The PS2501-1-Q-A manufactured by CEL is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PS2501-1-Q-A |
| Category | Optoisolators |
| Series | NEPOC |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Current Transfer Ratio (Min) | 100% @ 5mA |
| Current Transfer Ratio (Max) | 200% @ 5mA |
| Output Type | Transistor |
| Voltage - Output (Max) | 80V |
| Current - Output / Channel | 50mA |
| Vce Saturation (Max) | 300mV |
| Operating Temperature Range | -55°C ~ 100°C |
| Package / Case | 4-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the PS2501-1-Q-A is determined by strict equivalence across the following critical parameters:
Isolation Voltage: 5000Vrms isolation rating is the primary functional requirement. Substitute parts must maintain this specification.
Channel Configuration: Single-channel (1 Channel) architecture must be preserved for circuit compatibility.
Output Stage: Transistor output type is mandatory for direct pin-level compatibility.
Electrical Performance: Current transfer ratio range (100% to 200% @ 5mA), maximum output voltage (80V), output current capability (50mA), and Vce saturation (300mV) must be identical.
Package Specification: 4-DIP through-hole package with 0.300" (7.62mm) body dimensions ensures mechanical and electrical compatibility with existing PCB layouts.
Operating Temperature: -55°C to 100°C range must be maintained for environmental specification compliance.
Compliance Standards: RoHS3 compliance and MSL Level 1 rating are required for regulatory and manufacturing process compatibility.
The PS2501-1-Q-A from Renesas Electronics Corporation is a parametric equivalent that meets all specified criteria.
Parameter Comparison
| Parameter | PS2501-1-Q-A (CEL) | PS2501-1-Q-A (Renesas) |
|---|---|---|
| Manufacturer | CEL | Renesas Electronics Corporation |
| Product Status | Discontinued at DiGi Electronics | Active |
| Number of Channels | 1 | 1 |
| Voltage - Isolation | 5000Vrms | 5000Vrms |
| Current Transfer Ratio (Min) | 100% @ 5mA | 100% @ 5mA |
| Current Transfer Ratio (Max) | 200% @ 5mA | 200% @ 5mA |
| Output Type | Transistor | Transistor |
| Voltage - Output (Max) | 80V | 80V |
| Current - Output / Channel | 50mA | 50mA |
| Vce Saturation (Max) | 300mV | 300mV |
| Operating Temperature | -55°C ~ 100°C | -55°C ~ 100°C |
| Package / Case | 4-DIP (0.300", 7.62mm) | 4-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Not specified | Tube |
| Inventory Status | 900 Pcs New Original In Stock | 858 Pcs New Original In Stock |
Engineering Selection Recommendations
The PS2501-1-Q-A from Renesas Electronics Corporation is a direct parametric equivalent to the discontinued CEL PS2501-1-Q-A. All electrical specifications, isolation voltage, output characteristics, and package dimensions are identical.
Product Status Consideration: The Renesas variant maintains active product status, ensuring ongoing availability and manufacturing support. The CEL version is discontinued at DiGi Electronics, making the Renesas equivalent the appropriate selection for new designs and ongoing production requirements.
Compliance Alignment: Both variants are ROHS3 compliant and carry MSL Level 1 rating, ensuring compatibility with current manufacturing processes and regulatory requirements.
Packaging Difference: The Renesas version is supplied in tube packaging, whereas the CEL packaging specification was not provided. Tube packaging is standard for through-hole DIP components and presents no functional or electrical differences.
Supply Chain: The Renesas variant has confirmed inventory availability (858 Pcs), supporting immediate procurement for production schedules.
Frequently Asked Questions (FAQ)
Q: Can the Renesas PS2501-1-Q-A directly replace the CEL PS2501-1-Q-A in existing designs?
A: Yes. The Renesas variant is a parametric equivalent with identical electrical specifications, isolation voltage (5000Vrms), output characteristics, and 4-DIP package dimensions. Direct pin-for-pin substitution is supported.
Q: Are there any differences in isolation voltage or output current between the two manufacturers?
A: No. Both variants specify 5000Vrms isolation voltage, 50mA maximum output current per channel, and identical current transfer ratio ranges (100% to 200% @ 5mA).
Q: Does the tube packaging of the Renesas variant affect compatibility?
A: No. Tube packaging is a supply format only and does not affect electrical performance, pin configuration, or mechanical fit. The 4-DIP package dimensions (0.300", 7.62mm) remain identical.
Q: Are both variants RoHS3 compliant?
A: Yes. Both the CEL and Renesas PS2501-1-Q-A are ROHS3 compliant with MSL Level 1 rating, meeting current regulatory and manufacturing requirements.
Q: What is the operating temperature range for both variants?
A: Both variants operate across -55°C to 100°C, ensuring compatibility across industrial and commercial temperature specifications.
Q: Is the current transfer ratio specification identical between manufacturers?
A: Yes. Both variants specify a current transfer ratio of 100% minimum to 200% maximum at 5mA input current, with rise and fall times of 3µs and 5µs respectively.
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