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PS2502-1-A Equivalent & Substitute Parts
Part Overview
The PS2502-1-A is a NEPOC series optoisolator with Darlington output, designed for 5000Vrms isolation in single-channel configurations. This device features 4-DIP through-hole packaging and delivers 200mA output current with a 1V maximum saturation voltage. The main part is currently discontinued at DiGi Electronics, necessitating the identification of equivalent alternatives for ongoing design support and procurement requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Category | Optoisolators |
| Series | NEPOC |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Current Transfer Ratio (Min) | 200% @ 1mA |
| Output Type | Darlington |
| Voltage - Output (Max) | 40V |
| Current - Output / Channel | 200mA |
| Vce Saturation (Max) | 1V |
| Rise / Fall Time (Typ) | 100µs, 100µs |
| Operating Temperature | -55°C ~ 100°C |
| Package / Case | 4-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
The PS2502-1-A permits substitution with other NEPOC series optoisolators that maintain identical electrical and mechanical specifications. Substitution compatibility is determined by the following key parameters:
- Voltage - Isolation: 5000Vrms (critical isolation requirement)
- Current Transfer Ratio (Min): 200% @ 1mA
- Output Type: Darlington
- Voltage - Output (Max): 40V
- Current - Output / Channel: 200mA
- Vce Saturation (Max): 1V
- Package / Case: 4-DIP (0.300", 7.62mm)
- Operating Temperature Range: -55°C ~ 100°C
The substitute parts PS2502-1-A (Renesas Electronics Corporation), PS2562-1-A, and PS2562-1-V-A maintain all specified electrical parameters and physical packaging requirements, making them direct parametric equivalents.
Parameter Comparison
| Parameter | PS2502-1-A (CEL) | PS2502-1-A (Renesas) | PS2562-1-A | PS2562-1-V-A |
|---|---|---|---|---|
| Manufacturer | CEL | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Number of Channels | 1 | 1 | 1 | 1 |
| Voltage - Isolation | 5000Vrms | 5000Vrms | 5000Vrms | 5000Vrms |
| Current Transfer Ratio (Min) | 200% @ 1mA | 200% @ 1mA | 200% @ 1mA | 200% @ 1mA |
| Output Type | Darlington | Darlington | Darlington | Darlington |
| Voltage - Output (Max) | 40V | 40V | 40V | 40V |
| Current - Output / Channel | 200mA | 200mA | 200mA | 200mA |
| Vce Saturation (Max) | 1V | 1V | 1V | 1V |
| Rise / Fall Time (Typ) | 100µs, 100µs | 100µs, 100µs | 100µs, 100µs | 100µs, 100µs |
| Operating Temperature | -55°C ~ 100°C | -55°C ~ 100°C | -55°C ~ 100°C | -55°C ~ 100°C |
| Package / Case | 4-DIP (0.300", 7.62mm) | 4-DIP (0.300", 7.62mm) | 4-DIP (0.300", 7.62mm) | 4-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Discontinued at DiGi Electronics | Not For New Designs | Active | Active |
Engineering Selection Recommendations
PS2562-1-A is the preferred substitute for new designs. This part carries Active product status from Renesas Electronics Corporation and maintains full electrical and mechanical compatibility with the PS2502-1-A specification. Current inventory (4453 Pcs) supports production requirements.
PS2562-1-V-A represents an alternative with identical parametric specifications and Active status. This variant maintains all electrical and thermal performance parameters with current availability of 994 Pcs.
PS2502-1-A (Renesas Electronics Corporation) provides backward compatibility for legacy applications but carries Not For New Designs status. This option is suitable only for direct replacement in existing designs requiring the PS2502 base product number.
All substitute options maintain ROHS3 compliance and REACH Affected designation, ensuring regulatory and environmental consistency with the original specification.
Frequently Asked Questions (FAQ)
Q: What determines if a part is a valid substitute for the PS2502-1-A? A: Valid substitutes must maintain identical specifications across isolation voltage (5000Vrms), current transfer ratio (200% @ 1mA), output type (Darlington), maximum output voltage (40V), output current (200mA), saturation voltage (1V), and physical packaging (4-DIP through-hole). All listed substitutes meet these criteria.
Q: Can I use PS2562-1-A in place of PS2502-1-A without circuit modifications? A: Yes. The PS2562-1-A is a direct parametric equivalent. All electrical characteristics, pin configuration, and thermal performance match the PS2502-1-A specification, enabling direct substitution in existing through-hole PCB layouts.
Q: What is the difference between PS2562-1-A and PS2562-1-V-A? A: Both parts share identical electrical specifications and performance parameters. The designation suffix indicates manufacturing variant classification. Selection between these variants depends on inventory availability and supply chain requirements.
Q: Why is the original PS2502-1-A discontinued? A: The CEL PS2502-1-A is discontinued at DiGi Electronics. However, equivalent alternatives from Renesas Electronics Corporation in the same NEPOC series maintain full functional and electrical compatibility for ongoing applications.
Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitutes carry ROHS3 Compliant status, ensuring environmental and regulatory conformance identical to the original PS2502-1-A specification.
Q: What is the operating temperature range for these optoisolators? A: All substitute parts operate across -55°C to 100°C, supporting applications requiring extended temperature performance.
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