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PS2501L-1-H-A Equivalent & Substitute Parts
Part Overview
The PS2501L-1-H-A is an optoisolator with transistor output manufactured by Renesas Electronics Corporation. This component provides galvanic isolation up to 5000Vrms with a single channel configuration, designed for DC input applications requiring reliable signal isolation in industrial and consumer electronics. The part is currently in active production status with 1298 units available in stock. Substitute parts are identified when equivalent electrical performance, isolation ratings, and mechanical compatibility are maintained across the NEPOC series.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PS2501L-1-H-A |
| Manufacturer | Renesas Electronics Corporation |
| Category | Optoisolators |
| Series | NEPOC |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Current Transfer Ratio (Min) | 80% @ 5mA |
| Current Transfer Ratio (Max) | 160% @ 5mA |
| Rise / Fall Time (Typ) | 3µs, 5µs |
| Input Type | DC |
| Output Type | Transistor |
| Voltage - Output (Max) | 80V |
| Current - Output / Channel | 50mA |
| Voltage - Forward (Vf) (Typ) | 1.17V |
| Current - DC Forward (If) (Max) | 80mA |
| Vce Saturation (Max) | 300mV |
| Operating Temperature | -55°C ~ 100°C |
| Mounting Type | Surface Mount |
| Package / Case | 4-SMD, Gull Wing |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
The PS2581L2-H-A qualifies as a parametric equivalent to the PS2501L-1-H-A based on the following critical substitution criteria:
Electrical Parameters (Must Match):
- Voltage - Isolation: 5000Vrms
- Number of Channels: 1
- Current Transfer Ratio: 80% - 160% @ 5mA
- Rise / Fall Time: 3µs, 5µs
- Output Type: Transistor
- Voltage - Output (Max): 80V
- Current - Output / Channel: 50mA
- Vce Saturation (Max): 300mV
- Operating Temperature Range: -55°C ~ 100°C
Mechanical Parameters (Must Match):
- Mounting Type: Surface Mount
- Package / Case: 4-SMD, Gull Wing
- Input Type: DC
Compliance & Status (Must Match):
- Series: NEPOC
- Product Status: Active
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
All parameters are identical between the main part and substitute, confirming direct functional equivalence within the NEPOC optoisolator family.
Parameter Comparison
| Parameter | PS2501L-1-H-A | PS2581L2-H-A |
|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Series | NEPOC | NEPOC |
| Number of Channels | 1 | 1 |
| Voltage - Isolation | 5000Vrms | 5000Vrms |
| Current Transfer Ratio (Min) | 80% @ 5mA | 80% @ 5mA |
| Current Transfer Ratio (Max) | 160% @ 5mA | 160% @ 5mA |
| Rise / Fall Time (Typ) | 3µs, 5µs | 3µs, 5µs |
| Input Type | DC | DC |
| Output Type | Transistor | Transistor |
| Voltage - Output (Max) | 80V | 80V |
| Current - Output / Channel | 50mA | 50mA |
| Voltage - Forward (Vf) (Typ) | 1.17V | 1.17V |
| Current - DC Forward (If) (Max) | 80mA | 80mA |
| Vce Saturation (Max) | 300mV | 300mV |
| Operating Temperature | -55°C ~ 100°C | -55°C ~ 100°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 4-SMD, Gull Wing | 4-SMD, Gull Wing |
| Product Status | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Both the PS2501L-1-H-A and PS2581L2-H-A are active production components from Renesas Electronics Corporation with identical electrical and mechanical specifications. Selection between these parts may be based on:
Availability: PS2501L-1-H-A has 1298 units in stock; PS2581L2-H-A has 752 units in stock.
Packaging: PS2501L-1-H-A is supplied in standard packaging; PS2581L2-H-A is supplied in tube packaging.
Compliance: Both parts maintain ROHS3 compliance, REACH affected status, and identical moisture sensitivity ratings, making either suitable for regulated applications.
Supply Chain Considerations: Both parts share the same base product family (PS2501 and PS2581 respectively) within the NEPOC series, ensuring consistent quality and performance standards.
Frequently Asked Questions (FAQ)
Q: Can PS2581L2-H-A directly replace PS2501L-1-H-A in existing designs?
A: Yes. All electrical parameters, isolation ratings, output characteristics, and mechanical dimensions are identical. No circuit modifications are required.
Q: Are there differences in isolation voltage or current transfer ratio between these parts?
A: No. Both parts provide 5000Vrms isolation with current transfer ratios of 80% to 160% @ 5mA. Output current capability and saturation voltage are identical.
Q: What is the difference between the two part numbers?
A: The primary difference is packaging format. PS2501L-1-H-A uses standard packaging while PS2581L2-H-A uses tube packaging. The base product numbers (PS2501 vs PS2581) indicate different product lines within the NEPOC series, but electrical performance is equivalent.
Q: Are both parts suitable for high-temperature applications?
A: Yes. Both parts operate across the -55°C to 100°C temperature range with identical performance specifications.
Q: Do both parts meet RoHS and REACH requirements?
A: Yes. Both PS2501L-1-H-A and PS2581L2-H-A are ROHS3 compliant and REACH affected, meeting current regulatory standards.
Q: What is the moisture sensitivity level for these optoisolators?
A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
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