PS7801C-1A-A Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PS7801C-1A-A is a Solid State SPST-NO (1 Form A) relay manufactured by CEL in a 4-SMD (0.165", 4.20mm) surface mount package. This component is rated for 80 mA load current with an input voltage of 1.1 VDC and a load voltage range of 0 V to 30 V. The product status is obsolete, making identification of suitable substitute components essential for design continuity and board-level replacements.

Substiute Parts

PS7801C-1A-A

CELIn Stock: 752PS7801C-1A-A Datasheet

Current PartRFQ

TLP3215(TP15,F)

Toshiba Semiconductor and StorageIn Stock: 4865TLP3215(TP15,F) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7801C-1A-A is determined by the following critical parameters: circuit configuration (SPST-NO), mounting type (surface mount), and electrical performance characteristics within allowable tolerances. The TLP3215(TP15,F) qualifies as a substitute based on matching circuit topology and package form factor. Substitutes must maintain compatible input voltage thresholds, load voltage ratings that encompass or exceed the original specification range, and load current ratings sufficient for the application. The 4-SMD package format ensures mechanical and thermal compatibility with existing PCB layouts designed for the PS7801C-1A-A.

Parameter Comparison

Engineering Selection Recommendations

The PS7801C-1A-A is obsolete, requiring the TLP3215(TP15,F) as an active substitute. The TLP3215(TP15,F) is manufactured by Toshiba Semiconductor and Storage with active product status, ensuring ongoing availability and supply chain continuity. Both components carry the same ECCN (EAR99) and HTSUS classification (8536.41.0030), confirming equivalent regulatory treatment. The TLP3215(TP15,F) exceeds the electrical performance envelope of the original part with higher load voltage rating (40 V vs. 30 V), greater load current capacity (300 mA vs. 80 mA), and lower on-state resistance (1.5 Ohms vs. 17 Ohms). The TLP3215(TP15,F) is RoHS Compliant, supporting modern supply chain and environmental compliance requirements. Both components are packaged in 4-SMD surface mount formats with SMD (SMT) tab termination, ensuring compatibility with existing PCB routing and reflow processes.

Frequently Asked Questions (FAQ)

Q: Can the TLP3215(TP15,F) directly replace the PS7801C-1A-A in existing designs? A: Yes. Both components share identical circuit configuration (SPST-NO), matching output type (AC, DC), and compatible surface mount package formats with SMD (SMT) tab termination. Input voltage specifications are aligned (1.1 VDC vs. 1.15 VDC), and the TLP3215(TP15,F) load voltage rating (0 V ~ 40 V) encompasses the original specification range (0 V ~ 30 V).

Q: What are the load current differences between these parts? A: The PS7801C-1A-A is rated for 80 mA maximum load current. The TLP3215(TP15,F) supports 300 mA, representing a 3.75x increase in current-handling capability. This enhanced capacity does not introduce incompatibility concerns in applications requiring only the original 80 mA rating.

Q: Are there moisture sensitivity considerations when substituting? A: The PS7801C-1A-A has MSL rating of 1 (Unlimited), while the TLP3215(TP15,F) has MSL rating of 3 (168 Hours). This difference requires adherence to the more stringent handling protocol (168-hour dry storage limit) for the substitute component during assembly and inventory management.

Q: Do both parts have equivalent regulatory classifications? A: Yes. Both the PS7801C-1A-A and TLP3215(TP15,F) carry identical ECCN (EAR99) and HTSUS (8536.41.0030) classifications, indicating equivalent export control and tariff treatment.

Q: What is the significance of the on-state resistance difference? A: The PS7801C-1A-A has a maximum on-state resistance of 17 Ohms, while the TLP3215(TP15,F) has 1.5 Ohms. The substitute's lower on-state resistance results in reduced power dissipation and heat generation during operation, providing a design advantage with no compatibility detriment.