CS330 Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CS330 is a solid state SPST-NO (1 Form A) relay manufactured by Coto Technology, designed for general-purpose switching applications with a maximum load current of 100 mA and load voltage range of 0-400V. The product is currently obsolete, requiring identification of suitable alternative components for new designs and legacy system maintenance. Equivalent parts must maintain compatibility across key electrical parameters including input voltage, output voltage range, circuit configuration, and package dimensions.

Substiute Parts

CS330

Coto TechnologyIn Stock: 2867CS330 Datasheet

Current PartRFQ

VOR2142B8

Vishay Semiconductor Opto DivisionIn Stock: 792VOR2142B8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the CS330 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Circuit configuration: SPST-NO (1 Form A) x 2
• Input voltage: 1.37 VDC nominal
• Output voltage range: 0 V ~ 400 V
• Output type: AC and DC switching capability
• Load current capability: minimum 100 mA

Mechanical Parameters:

• Package type: 8-SMD (0.300", 7.62mm)
• Termination style: Gull Wing
• Mounting: Surface mount

Compliance Parameters:

• RoHS3 compliance
• ECCN classification: EAR99
• HTSUS code: 8536.49.0055

The VOR2142B8 (Vishay Semiconductor Opto Division) meets all substitution criteria with enhanced performance characteristics in load current capacity and thermal management.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: VOR2142B8

The VOR2142B8 is the direct functional substitute for the obsolete CS330. Both components share identical circuit configuration, voltage operating ranges, and package specifications. The VOR2142B8 offers improved electrical characteristics with lower on-state resistance (27 Ohms vs. 30 Ohms) and higher load current capability (140 mA vs. 100 mA), providing margin for higher current applications without compromising compatibility.

Compliance & Product Status:

The VOR2142B8 carries active product status with full manufacturer support and current production availability, eliminating obsolescence concerns associated with the CS330. Both components maintain ROHS3 compliance and identical tariff classification. The VOR2142B8 offers superior moisture sensitivity rating (MSL 1 vs. MSL 2), reducing environmental storage and handling constraints.

Mechanical & Electrical Compatibility:

Direct footprint and pin compatibility is confirmed through matching package designations (8-SMD, 0.300" pitch) and termination styles (Gull Wing). Input voltage requirements are equivalent (1.37 VDC vs. 1.36 VDC), ensuring seamless integration with existing control circuits.

Frequently Asked Questions (FAQ)

Q: Can the VOR2142B8 directly replace the CS330 on existing PCBs?

A: Yes. The VOR2142B8 provides direct mechanical and electrical compatibility. Both components use identical 8-SMD (0.300", 7.62mm) packages with Gull Wing termination. Pin-to-pin functionality is maintained across all switching and control pins.

Q: What are the key performance differences?

A: The VOR2142B8 offers enhanced performance: 27 Ohms maximum on-state resistance compared to the CS330's 30 Ohms, and 140 mA load current capacity versus 100 mA. These improvements provide additional operational margin without affecting voltage ratings or circuit behavior.

Q: Are there any compliance or certification differences?

A: Both components meet ROHS3 compliance and share identical ECCN (EAR99) and HTSUS (8536.49.0055) classifications. The VOR2142B8 offers improved moisture sensitivity (MSL 1 unlimited vs. MSL 2 one year), providing broader storage and environmental flexibility.

Q: How do the input voltage specifications compare?

A: Input voltage specifications are functionally equivalent: CS330 operates at 1.37 VDC while VOR2142B8 operates at 1.36 VDC. This 0.01 VDC variance has no practical impact on control circuit design or component selection for typical applications.

Q: What is the significance of the SPST-NO x 2 circuit configuration?

A: Both relays contain two independent Form A switching channels. Each channel provides single-pole, single-throw, normally-open operation with individual control and load circuits. This dual-channel configuration supports simultaneous or independent switching control depending on application requirements.

Q: Are package footprint specifications identical?

A: Yes. Both components use 8-SMD surface mount packages with 0.300-inch (7.62mm) pitch. Gull Wing termination style is identical, ensuring compatibility with standard SMD assembly processes and existing PCB layouts.

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