AQW614 Equivalent & Substitute Parts

Part Overview

The AQW614 is a solid-state relay manufactured by Panasonic Electric Works, part of the PhotoMOS™ AQW series. It functions as a SPST-NO/NC (1 Form A and B) switching device rated for 100 mA load current across 0–400 V AC/DC applications. The component is mounted through-hole in an 8-DIP package and is currently in active production status with RoHS compliance. Identifying equivalent and substitute parts is necessary when the primary part is unavailable, when inventory constraints require alternative sourcing, or when design specifications allow for compatible alternatives with enhanced performance characteristics.

Substiute Parts

AQW614

Panasonic Electric WorksIn Stock: 1652AQW614 Datasheet

Current PartRFQ

LH1502BB

Vishay Semiconductor Opto DivisionIn Stock: 1481LH1502BB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AQW614 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Circuit configuration: SPST-NO + SPST-NC (1 Form A and B)
• Package type: 8-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Termination style: PC Pin
• Output type: AC, DC capability

Allowable Variation Parameters:

• Load voltage rating: Substitute must support the required operating range (minimum 0–400 V for AQW614)
• Load current rating: Substitute must meet or exceed 100 mA requirement
• On-state resistance: Lower values are acceptable (improved performance)
• Input voltage: Substitute must support the control signal requirement (minimum 1.14 VDC)

The LH1502BB qualifies as a substitute because it maintains identical circuit configuration, package dimensions, mounting method, and termination style. Its enhanced load current rating (150 mA) and lower on-state resistance (20 Ohms) provide performance margin, though its load voltage rating (0–350 V) is lower than the AQW614 specification.

Parameter Comparison

Engineering Selection Recommendations

Both the AQW614 and LH1502BB are active production components with current RoHS compliance certifications, ensuring regulatory alignment for new designs and procurement. The AQW614 maintains a higher load voltage specification (400 V maximum), making it the preferred choice for applications requiring operation at elevated voltages near or exceeding 350 V. The LH1502BB offers superior current handling (150 mA versus 100 mA) and lower on-state resistance (20 Ohms versus 50 Ohms), providing performance advantages in applications where load current approaches the component rating or where reduced resistive losses are beneficial. Selection between these parts should be based on the specific load voltage and current requirements of the target application, with consideration for supply chain availability and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can the LH1502BB replace the AQW614 in all applications?

A: The LH1502BB is mechanically and electrically compatible for applications where the load voltage does not exceed 350 V. If your circuit operates loads at voltages between 350 V and 400 V, the AQW614 is required. For applications operating below 350 V, the LH1502BB is a valid substitute with enhanced current and resistance specifications.

Q: Are the package dimensions identical between these parts?

A: Yes. Both components use the 8-DIP (0.300", 7.62mm) package with PC Pin termination, ensuring identical PCB footprint and through-hole mounting compatibility.

Q: What is the significance of the lower on-state resistance in the LH1502BB?

A: Lower on-state resistance (20 Ohms versus 50 Ohms) reduces power dissipation across the relay contacts during operation. This results in lower heat generation and improved efficiency, particularly in applications with sustained or high-frequency switching.

Q: Do both parts support AC and DC load switching?

A: Yes. Both the AQW614 and LH1502BB are rated for AC and DC output operation, providing flexibility for diverse load types.

Q: What are the RoHS compliance differences?

A: The AQW614 carries RoHS Compliant certification, while the LH1502BB carries ROHS3 Compliant certification. Both meet current regulatory requirements for hazardous substance restrictions in electronic components.

Q: Which part should I select for new designs?

A: For new designs, either part is acceptable based on load voltage requirements. If your design operates loads below 350 V, the LH1502BB offers performance advantages. If loads may reach 400 V, the AQW614 is the appropriate choice. Verify load voltage specifications in your application schematic before final selection.