PS7802B-1A-A Equivalent & Substitute Parts

Part Overview

The PS7802B-1A-A is a solid-state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device in a 4-SMD surface mount package. This component operates with a 1.1 VDC input signal and supports load voltages from 0 V to 40 V at a maximum load current of 240 mA, with an on-state resistance of 3.5 Ohms maximum. The PS7802B-1A-A is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

PS7802B-1A-A

CELIn Stock: 1058PS7802B-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 PS7802B-1A-A is determined by strict compatibility across the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Circuit configuration must remain SPST-NO (1 Form A)
• Input voltage must be compatible with 1.1 VDC control signal
• Load voltage range must encompass 0 V to 40 V operation
• Load current rating must equal or exceed 240 mA
• Output type must support both AC and DC loads
• On-state resistance must not exceed 3.5 Ohms

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Package must be 4-SMD format with flat leads
• Termination style must be SMD (SMT) Tab

The TLP3215(TP15,F) manufactured by Toshiba Semiconductor and Storage meets all substitution criteria. This device maintains identical circuit configuration and load voltage specifications while providing superior electrical performance through higher load current capacity (300 mA versus 240 mA) and lower on-state resistance (1.5 Ohms versus 3.5 Ohms). The mechanical footprint and termination style are compatible with PS7802B-1A-A PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The TLP3215(TP15,F) is the qualified substitute for the obsolete PS7802B-1A-A based on the following engineering factors:

Product Status and Availability: The PS7802B-1A-A is classified as obsolete, creating supply chain risk. The TLP3215(TP15,F) is in active production status with confirmed inventory availability (4821 pieces in stock), ensuring long-term procurement viability.

Electrical Performance: The TLP3215(TP15,F) provides superior electrical characteristics within the same operational envelope. The load current capacity of 300 mA exceeds the PS7802B-1A-A requirement of 240 mA, and the on-state resistance of 1.5 Ohms is significantly lower than the 3.5 Ohms maximum of the original part. These improvements reduce power dissipation and thermal stress in the application circuit.

Compliance and Certification: The TLP3215(TP15,F) carries RoHS Compliant certification, meeting current environmental and regulatory standards. Both parts share identical ECCN (EAR99) and HTSUS (8536.41.0030) classifications, indicating equivalent regulatory treatment.

Mechanical and Thermal Considerations: The TLP3215(TP15,F) operates with MSL 3 (168 Hours) moisture sensitivity, requiring controlled storage and handling procedures compared to the MSL 1 (Unlimited) rating of the PS7802B-1A-A. Design teams must implement appropriate moisture control measures during component storage, handling, and assembly processes to maintain reliability.

PCB Layout Compatibility: Both devices utilize 4-SMD surface mount packages with SMD (SMT) Tab termination. The mechanical footprint and lead spacing are compatible, allowing direct substitution on existing PCB layouts without redesign.

Frequently Asked Questions (FAQ)

Q: Can the TLP3215(TP15,F) be used as a direct replacement for the PS7802B-1A-A in existing designs?

A: Yes, the TLP3215(TP15,F) is electrically and mechanically compatible with the PS7802B-1A-A. Both devices maintain identical SPST-NO circuit configuration, load voltage range (0 V to 40 V), and surface mount package format. The input voltage difference (1.15 VDC versus 1.1 VDC) is within acceptable tolerance for standard control circuits. No PCB redesign is required.

Q: What is the significance of the on-state resistance difference between these parts?

A: The TLP3215(TP15,F) exhibits lower on-state resistance (1.5 Ohms maximum) compared to the PS7802B-1A-A (3.5 Ohms maximum). Lower on-state resistance reduces power dissipation across the relay output terminals, resulting in decreased heat generation and improved thermal performance. This characteristic is advantageous in applications with continuous or high-duty-cycle operation.

Q: Does the higher load current rating of the TLP3215(TP15,F) affect circuit design?

A: The TLP3215(TP15,F) supports 300 mA load current versus the PS7802B-1A-A specification of 240 mA. This higher rating provides additional design margin and does not require circuit modification. Applications designed for 240 mA operation remain fully compatible and benefit from the increased current capacity headroom.

Q: What are the implications of the different Moisture Sensitivity Levels (MSL)?

A: The PS7802B-1A-A carries MSL 1 (Unlimited), while the TLP3215(TP15,F) carries MSL 3 (168 Hours). MSL 3 requires that the component be stored in controlled humidity conditions and used within 168 hours of package opening. Design teams must implement proper moisture control procedures, including desiccant storage, humidity monitoring, and bake-out procedures if the component is exposed to ambient humidity for extended periods.

Q: Are there any regulatory or compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.41.0030) classifications. The TLP3215(TP15,F) carries RoHS Compliant certification, meeting current environmental standards. The PS7802B-1A-A RoHS status is not specified. For applications requiring RoHS compliance, the TLP3215(TP15,F) is the appropriate selection.

Q: What is the impact of the PS7802B-1A-A being classified as obsolete?

A: Obsolete classification indicates that the manufacturer has discontinued production and support for this component. Existing inventory may be limited and subject to availability fluctuations. The TLP3215(TP15,F) is in active production status with confirmed inventory, providing supply chain stability and long-term availability for new designs and production runs.

Q: Can the TLP3215(TP15,F) be used in both AC and DC load applications?

A: Yes, the TLP3215(TP15,F) supports both AC and DC output types, identical to the PS7802B-1A-A. The device is suitable for applications requiring switching of either AC or DC loads within the specified voltage range (0 V to 40 V).