LCB111S Equivalent & Substitute Parts

Part Overview

The LCB111S is a solid-state relay (SSR) manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This SPST-NC (1 Form B) relay operates with a 1.2VDC input and supports load voltages from 0V to 350V with a maximum load current of 120mA. The device is housed in a 6-SMD surface mount package with gull wing termination and is actively produced. Equivalent and substitute parts are identified based on matching circuit topology, load voltage range, package configuration, and compliance certifications to ensure functional interchangeability in applications requiring SPST-NC solid-state relay functionality.

Substiute Parts

LCB111S

IXYS Integrated Circuits DivisionIn Stock: 2207LCB111S Datasheet

Current PartRFQ

LH1501BAB

Vishay Semiconductor Opto DivisionIn Stock: 1392LH1501BAB Datasheet

MFR RecommendedRFQ

LH1501BABTR

Vishay Semiconductor Opto DivisionIn Stock: 3807LH1501BABTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCB111S are qualified based on the following criteria:

Mandatory Matching Parameters:

• Circuit configuration: SPST-NC (1 Form B)
• Load voltage range: 0V ~ 350V
• Output type: AC, DC capable
• Package type: 6-SMD (0.300", 7.62mm)
• Termination style: Gull Wing
• Mounting type: Surface Mount
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Allowable Variations:

• Input voltage: 1.2VDC to 1.26VDC (within acceptable control signal range)
• Load current: 120mA minimum (substitutes may exceed this rating)
• On-state resistance: Lower values are acceptable (improved performance)

The LH1501BAB and LH1501BABTR from Vishay Semiconductor Opto Division meet all mandatory parameters and represent direct functional equivalents with enhanced current handling capability.

Parameter Comparison

Engineering Selection Recommendations

Both LH1501BAB and LH1501BABTR are qualified substitutes for the LCB111S based on matching circuit topology, load voltage specifications, package configuration, and compliance certifications. The Vishay parts offer improved electrical performance with lower on-state resistance (20 Ohms vs. 35 Ohms) and higher load current rating (150mA vs. 120mA), making them suitable for applications requiring enhanced current handling or reduced power dissipation.

Selection between LH1501BAB (Tube packaging) and LH1501BABTR (Tape & Reel packaging) depends on procurement and assembly requirements. Both parts maintain ROHS3 compliance, unlimited MSL rating, and active product status. The input voltage differential (1.26VDC vs. 1.2VDC) is within acceptable control signal tolerances for standard SSR applications.

Frequently Asked Questions (FAQ)

Q: Can LH1501BAB or LH1501BABTR be used as direct replacements for LCB111S?

A: Yes. Both Vishay parts are direct functional equivalents. They share identical circuit configuration (SPST-NC), load voltage range (0V–350V), package type (6-SMD), and termination style (Gull Wing). The input voltage difference (1.26VDC vs. 1.2VDC) and improved electrical specifications make them compatible substitutes.

Q: What is the difference between LH1501BAB and LH1501BABTR?

A: The primary difference is packaging format. LH1501BAB is supplied in Tube packaging, while LH1501BABTR is supplied in Tape & Reel (TR) format. Both parts are electrically identical and functionally equivalent. Selection depends on assembly line requirements and procurement preferences.

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

A: No. All three parts (LCB111S, LH1501BAB, and LH1501BABTR) are ROHS3 compliant, carry MSL rating 1 (Unlimited), and maintain active product status. REACH and ECCN classifications are identical across all parts.

Q: What are the key electrical differences between LCB111S and the Vishay substitutes?

A: The Vishay LH1501 series offers improved performance: lower on-state resistance (20 Ohms vs. 35 Ohms) and higher load current capability (150mA vs. 120mA). Input voltage is slightly higher (1.26VDC vs. 1.2VDC). Load voltage range and circuit configuration remain identical.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All three parts use identical 6-SMD (0.300", 7.62mm) package with gull wing termination, ensuring mechanical and electrical compatibility on existing PCB layouts without design modifications.