MAX903EPA Equivalent & Substitute Parts

Part Overview

The MAX903EPA is a comparator with integrated latch functionality, designed for TTL-level output applications. This linear integrated circuit operates across a wide supply voltage range (5V ~ 10V single supply, ±2.5V ~ 5V dual supply) and is housed in an 8-DIP through-hole package. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MAX903EPA

Analog Devices Inc./Maxim IntegratedIn Stock: 1194MAX903EPA Datasheet

Current PartRFQ

MAX903EPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3410MAX903EPA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX903EPA is determined by strict equivalence across the following critical parameters:

• Functional Type: Single comparator with integrated latch
• Output Logic Level: TTL-compatible output
• Supply Voltage Range: 5V ~ 10V (single supply) and ±2.5V ~ 5V (dual supply)
• Input Offset Voltage: 4mV maximum at ±5V
• Input Bias Current: 10µA maximum at ±5V
• Common Mode Rejection Ratio: 82.5dB typical
• Power Supply Rejection Ratio: 80dB typical
• Package Configuration: 8-DIP through-hole, 0.300" (7.62mm) body width
• Operating Temperature Range: -40°C to 85°C
• Regulatory Compliance: ROHS3 compliant, REACH unaffected

The MAX903EPA+ qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The MAX903EPA+ is the direct equivalent for the MAX903EPA. Both devices share identical electrical characteristics, pin configuration, and package dimensions. The MAX903EPA+ is preferred for new designs and production applications due to its active product status, ensuring long-term availability and supply chain continuity. The MAX903EPA is classified as obsolete and should be replaced with the MAX903EPA+ in existing designs where component refresh is planned.

Both variants maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The tube packaging of the MAX903EPA+ provides standard handling and storage benefits for production environments.

Frequently Asked Questions (FAQ)

Q: Can the MAX903EPA+ be used as a direct replacement for the MAX903EPA?

A: Yes. The MAX903EPA+ is electrically and mechanically identical to the MAX903EPA. Both devices feature the same TTL comparator with latch configuration, supply voltage range, input offset voltage, bias current, and 8-DIP through-hole package. The primary difference is product status and packaging format.

Q: What is the significance of the product status difference between these parts?

A: The MAX903EPA is classified as obsolete, indicating that Analog Devices has discontinued active production and support. The MAX903EPA+ maintains active status, ensuring continued availability, technical support, and compliance with current manufacturing standards. For new designs and long-term production, the MAX903EPA+ is the appropriate selection.

Q: Are there any pin configuration differences between these devices?

A: No. Both the MAX903EPA and MAX903EPA+ use the 8-DIP package with identical pin assignments. Direct socket substitution is possible without circuit modification.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected. They satisfy equivalent regulatory requirements for industrial, commercial, and consumer applications.

Q: What is the difference between standard and tube packaging?

A: The MAX903EPA uses standard packaging, while the MAX903EPA+ is supplied in tube format. Tube packaging provides organized component handling and is standard for production environments. Both packaging formats contain identical devices with no electrical or functional differences.