MG-5-A-MD-R Digital Pressure Sensor - Equivalent & Substitute Parts

Part Overview

The MG-5-A-MD-R is a digital pressure gauge sensor manufactured by Amphenol SSI Technologies, designed for industrial automation applications requiring vented gauge pressure measurement at 5 PSI operating range. This sensor combines a Wheatstone Bridge output with an integrated LCD display, providing both analog signal transmission (4-20 mA) and direct visual readout. The product is classified as obsolete, making identification of active equivalent and substitute parts essential for system maintenance, replacement, and new design implementations.

Substiute Parts

MG-5-A-MD-R

Amphenol SSI TechnologiesIn Stock: 861MG-5-A-MD-R Datasheet

Current PartRFQ

MG-5-A-M12-R

Amphenol SSI TechnologiesIn Stock: 857MG-5-A-M12-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete MG-5-A-MD-R is determined by strict alignment of the following critical parameters:

Pressure Measurement Specifications: Operating pressure range of 5 PSI, vented gauge pressure type, and maximum pressure rating of 15 PSI must remain constant to ensure functional compatibility within the original system design.

Electrical Interface: The 4-20 mA output signal with Wheatstone Bridge configuration and 12V supply voltage are mandatory for integration with existing control systems and instrumentation.

Physical Interface: Male 1/4" NPT threaded port size ensures mechanical compatibility with existing piping and manifold connections.

Environmental Compliance: RoHS compliance and MSL rating of 1 maintain regulatory and reliability standards for industrial automation environments.

Performance Characteristics: ±1% accuracy and temperature compensation (-10°C ~ 60°C) define the measurement precision and operational envelope.

The substitute part MG-5-A-M12-R from Amphenol SSI Technologies maintains these critical parameters while offering active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The MG-5-A-M12-R is a direct functional equivalent to the obsolete MG-5-A-MD-R. Both components are manufactured by Amphenol SSI Technologies and maintain identical electrical, mechanical, and performance specifications across all critical parameters.

Product Status Consideration: The MG-5-A-MD-R is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The MG-5-A-M12-R maintains active product status, ensuring continued manufacturing support, availability, and compliance with current regulatory standards.

Compliance and Certification: Both parts maintain RoHS compliance and MSL rating of 1, confirming suitability for industrial automation applications without regulatory or reliability concerns.

Inventory Availability: Both parts are available as new original stock, with the MG-5-A-M12-R offering 789 units and the MG-5-A-MD-R offering 840 units. For new designs and long-term system support, the active MG-5-A-M12-R is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the MG-5-A-M12-R directly replace the MG-5-A-MD-R in existing installations?

A: Yes. Both sensors maintain identical operating pressure (5 PSI), output signal characteristics (4-20 mA with LCD display), supply voltage (12V), port configuration (1/4" NPT male threaded), accuracy (±1%), and temperature compensation. No system recalibration or signal conditioning modifications are required.

Q: What is the primary difference between these two part numbers?

A: The MG-5-A-MD-R is classified as obsolete with discontinued manufacturing. The MG-5-A-M12-R is an active product with current manufacturing support. All functional and electrical parameters remain identical.

Q: Are there any mechanical interface differences between these parts?

A: No. Both sensors feature identical port size (Male 1/4" NPT threaded) and package type (Module Box with Display), ensuring direct mechanical compatibility with existing piping and mounting configurations.

Q: Which part should be specified for new system designs?

A: The MG-5-A-M12-R should be specified for new designs due to its active product status, ensuring long-term availability, manufacturing support, and compliance with current industrial standards.

Q: Do both parts meet the same regulatory and environmental standards?

A: Yes. Both the MG-5-A-MD-R and MG-5-A-M12-R are RoHS compliant with MSL rating of 1 (unlimited moisture sensitivity), suitable for industrial automation environments without additional environmental protection measures.

Q: What is the operating temperature range for both sensors?

A: Both sensors operate across -10°C to 60°C with temperature compensation, maintaining ±1% accuracy throughout this range.