CPC7508B Equivalent & Substitute Parts

Part Overview

The CPC7508B is a telecom interface IC designed as a line card access switch in a 16-SOIC surface mount package. Manufactured by IXYS Integrated Circuits Division, this component operates at 12.5V supply voltage with 1.67mA current consumption and 25mW power dissipation across an operating temperature range of -40°C to 110°C. The product status is obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

CPC7508B

IXYS Integrated Circuits DivisionIn Stock: 2300CPC7508B Datasheet

Current PartRFQ

CPC7695BC

IXYS Integrated Circuits DivisionIn Stock: 763CPC7695BC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPC7508B is determined by the following critical parameters:

• Functional equivalence: Both components must serve as line card access switches within telecom interface applications
• Operating temperature range: Minimum -40°C to 110°C compatibility
• Surface mount capability: Compatibility with existing PCB assembly processes
• Compliance standards: ROHS3 compliance and REACH unaffected status maintained
• Package form factor: Physical dimensions and pin count accommodation on the circuit board

The CPC7695BC qualifies as a manufacturer-recommended substitute based on these criteria, despite differences in package pin count (28-SOIC versus 16-SOIC) and electrical specifications, as it maintains functional equivalence as a line card access switch with compatible operating temperature range and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CPC7695BC is designated as the manufacturer-recommended substitute for the obsolete CPC7508B. Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility. The CPC7695BC carries active product status, providing ongoing availability and supply chain continuity. The transition from 16-SOIC to 28-SOIC packaging requires PCB layout modification and pin assignment verification. The CPC7695BC operates at a lower supply voltage range (4.5V ~ 5.5V) compared to the CPC7508B (12.5V), necessitating power supply circuit redesign. The reduced power consumption of the CPC7695BC (10.5mW versus 25mW) provides thermal management benefits in system implementation.

Frequently Asked Questions (FAQ)

Q: Can the CPC7695BC directly replace the CPC7508B without PCB modifications?

A: No. The CPC7695BC uses a 28-SOIC package compared to the CPC7508B's 16-SOIC package. PCB layout changes and pin assignment verification are required. Additionally, the supply voltage differs (4.5V ~ 5.5V versus 12.5V), requiring power supply circuit modifications.

Q: What is the primary reason for substitution?

A: The CPC7508B is obsolete. The CPC7695BC is the manufacturer-recommended active substitute, ensuring long-term component availability and supply chain reliability.

Q: Are both components compliant with current environmental regulations?

A: Yes. Both the CPC7508B and CPC7695BC are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: How do the operating temperature ranges compare?

A: Both components operate across the identical temperature range of -40°C to 110°C, ensuring thermal compatibility in equivalent system environments.

Q: What are the key electrical differences between these components?

A: The CPC7695BC operates at a lower supply voltage (4.5V ~ 5.5V versus 12.5V) and consumes less power (10.5mW versus 25mW). Current consumption is slightly higher (2mA versus 1.67mA). These differences require circuit redesign during substitution.

Q: Is the CPC7695BC suitable for new designs?

A: Yes. The CPC7695BC carries active product status and is available in inventory, making it suitable for both replacement applications and new design implementations.