MB7789-120 Equivalent & Substitute Parts

Part Overview

The MB7789-120 is an ultrasonic sensor from MaxBotix Inc.'s 4-20SC-MaxSonar-WR series, operating at 42kHz with a rated voltage range of 10V to 32V. This component functions as both a transmitter and receiver for distance measurement applications. The MB7789-120 is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MB7789-120

MaxBotix Inc.In Stock: 1081MB7789-120 Datasheet

Current PartRFQ

MB7789-121

MaxBotix Inc.In Stock: 976MB7789-121 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB7789-120 is determined by strict alignment across the following critical parameters:

• Frequency: 42kHz (exact match required)
• Voltage Rating: 10V ~ 32V (exact match required)
• Beam Angle: 11° (exact match required)
• Operating Temperature Range: -40°C ~ 65°C (exact match required)
• Type: Transmitter, Receiver (exact match required)
• Series: 4-20SC-MaxSonar-WR (same product family)
• Base Product Number: MB7789 (same base platform)
• RoHS Compliance: ROHS3 Compliant (regulatory alignment)

The MB7789-121 meets all substitution criteria as an active product variant within the same series, maintaining identical electrical and mechanical specifications while offering current availability.

Parameter Comparison

Engineering Selection Recommendations

The MB7789-121 is the direct substitute for the MB7789-120. Both components share identical electrical specifications, mechanical parameters, and regulatory compliance status. The primary distinction is product lifecycle status: the MB7789-120 is obsolete while the MB7789-121 is active, ensuring continued availability and manufacturing support. Selection of the MB7789-121 eliminates obsolescence risk while maintaining full functional and electrical compatibility. Both components carry ROHS3 compliance and identical export classification (EAR99), supporting equivalent regulatory requirements across applications.

Frequently Asked Questions (FAQ)

Q: Can the MB7789-121 directly replace the MB7789-120 in existing designs?

A: Yes. The MB7789-121 maintains identical electrical specifications (10V ~ 32V rated voltage, 42kHz frequency), mechanical parameters (11° beam angle), and operating temperature range (-40°C ~ 65°C). Both are ROHS3 compliant with matching export classifications.

Q: What is the primary reason to transition from MB7789-120 to MB7789-121?

A: The MB7789-120 is classified as obsolete. The MB7789-121 is an active product offering current manufacturing support and guaranteed availability, eliminating supply chain risk.

Q: Are there packaging differences between these parts?

A: The MB7789-120 is specified with standard packaging, while the MB7789-121 is supplied in bulk packaging. Both maintain identical component specifications and functionality.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the MB7789-120 and MB7789-121 are ROHS3 compliant and classified under ECCN EAR99 with HTSUS code 8543.70.4500, supporting equivalent regulatory compliance across applications.

Q: What parameters must remain identical for substitution eligibility?

A: Frequency (42kHz), voltage rating (10V ~ 32V), beam angle (11°), operating temperature range (-40°C ~ 65°C), component type (Transmitter, Receiver), and series designation (4-20SC-MaxSonar-WR) must all match exactly for direct substitution.