LH1505AB Equivalent & Substitute Parts

Part Overview

The LH1505AB is a solid-state relay (SSR) manufactured by Vishay Semiconductor Opto Division, configured as a SPST-NO (Single Pole Single Throw - Normally Open) relay with dual channels in an 8-DIP package. This component is designed for switching applications requiring AC or DC loads up to 250V at 120mA. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Alternative components may be required due to inventory constraints, application-specific voltage requirements, or design optimization needs.

Substiute Parts

LH1505AB

Vishay Semiconductor Opto DivisionIn Stock: 20160LH1505AB Datasheet

Current PartRFQ

AQW210HL

Panasonic Electric WorksIn Stock: 1343AQW210HL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LH1505AB is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Circuit configuration: SPST-NO (1 Form A) x 2
• Package type: 8-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Load current rating: 120mA minimum
• Output type: AC and DC support
• Termination style: PC Pin

Allowable Parameter Variations:

• Input voltage: May differ if within component operational range
• Load voltage range: May exceed the original specification (higher is acceptable if application permits)
• On-state resistance: May vary within acceptable limits for the application
• Moisture sensitivity level: May differ without affecting core functionality

The AQW210HL from Panasonic Electric Works meets all mandatory compatibility criteria while offering an extended load voltage range (0V ~ 350V) and lower input voltage requirement (1.14VDC vs. 1.26VDC).

Parameter Comparison

Engineering Selection Recommendations

Both the LH1505AB and AQW210HL are active production components with ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations.

LH1505AB Selection Criteria:

• Applications requiring load voltages up to 250V
• Designs prioritizing lower on-state resistance (15 Ohms maximum)
• Systems with input voltage specifications at or above 1.26VDC

AQW210HL Selection Criteria:

• Applications requiring extended load voltage capability up to 350V
• Systems with lower input voltage availability (1.14VDC minimum)
• Designs where on-state resistance up to 25 Ohms is acceptable
• Panasonic PhotoMOS™ series preference for specific application requirements

Both components share identical circuit configuration, package footprint, and current rating, ensuring direct functional compatibility within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can the AQW210HL directly replace the LH1505AB in existing PCB designs?

A: Yes. Both components use identical 8-DIP (0.300", 7.62mm) through-hole packaging with PC pin termination. No PCB layout modifications are required. Electrical compatibility is maintained for applications operating within the AQW210HL's specifications.

Q: What is the significance of the different on-state resistance values (15 Ohms vs. 25 Ohms)?

A: On-state resistance affects power dissipation during relay operation. The LH1505AB's lower maximum resistance (15 Ohms) generates less heat at 120mA load current. The AQW210HL's 25 Ohms maximum is still within acceptable limits for most switching applications but should be verified if thermal management is critical.

Q: Why does the AQW210HL have a lower input voltage requirement (1.14VDC vs. 1.26VDC)?

A: This represents a design difference between manufacturers. The AQW210HL requires less input voltage to activate, which may be advantageous in low-voltage control circuits but does not affect substitution eligibility if your system provides the higher voltage.

Q: Is the extended load voltage range (350V vs. 250V) on the AQW210HL a benefit?

A: The extended range provides design flexibility for applications requiring higher load voltages. If your application operates at or below 250V, both components perform identically in this parameter. The AQW210HL offers additional margin for future design modifications.

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

A: Both components are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. No compliance barriers exist for substitution between these parts.

Q: What does SPST-NO (1 Form A) x 2 mean?

A: This indicates two independent single-pole single-throw normally-open relay channels within one 8-DIP package. Each channel can switch one load independently, providing dual switching capability in a compact form factor.