KA331PWD

Overview

The KA331PWD is a voltage-to-frequency converter integrated circuit manufactured by onsemi. It operates with a maximum frequency of 100kHz and features high accuracy with a specified tolerance of ±0.01%. The device is housed in an 8-DIP package with a width of 0.300 inches (7.62mm) and supports through-hole mounting. It is designed for applications requiring precise analog signal conversion to digital frequency formats.

Feature Summary

• Converts input voltage signals into proportional frequency outputs
• Provides high precision conversion with low error tolerance
• Supports through-hole mounting for standard PCB integration

Applications

• Industrial process control systems
• Precision measurement instrumentation
• Data acquisition modules

Procurement Notes

Verify component status carefully as the KA331PWD is classified as obsolete by the manufacturer. Sourcing may involve surplus or last-time-buy channels rather than standard production lines. Confirm authenticity and storage conditions when purchasing from third-party distributors to ensure reliability. Design-in decisions should account for potential long-term supply constraints associated with discontinued parts.

Selection Notes

Select this component only if legacy compatibility or specific historical design requirements necessitate its use. Evaluate alternative modern voltage-to-frequency converters that offer active manufacturing support and longer lifecycle availability. Consider system longevity and maintenance requirements when choosing a discontinued part for new designs.

Part Context

This component belongs to the family of linear signal conditioning ICs produced by onsemi. Voltage-to-frequency converters are essential for isolating analog inputs while maintaining signal integrity over distance. The KA331PWD represents a classic solution for applications where digital processing follows analog sensing stages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-compatible replacements must be identified through independent engineering analysis or manufacturer cross-reference tools not included in the source data.