TARS-HCASS Equivalent & Substitute Parts Reference

Part Overview

The TARS-HCASS is a 6-axis inertial measurement unit (IMU) combining accelerometer and gyroscope functionality with CAN J1939 bus output, manufactured by Honeywell Sensing and Productivity Solutions. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing system support. The TARS-HCASS operates across the industrial temperature range of -40°C to 85°C and is housed in a chassis-mount module package.

Due to its obsolete product status, sourcing new inventory of the TARS-HCASS is restricted. Equivalent substitute parts must maintain functional compatibility with existing system architectures while meeting current RoHS and regulatory compliance requirements.

Substiute Parts

TARS-HCASS

Honeywell Sensing and Productivity SolutionsIn Stock: 1003TARS-HCASS Datasheet

Current PartRFQ

TARS-BAASS

Honeywell Sensing and Productivity SolutionsIn Stock: 923TARS-BAASS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TARS-HCASS is determined by the following critical parameters:

Primary Compatibility Criteria:

• Manufacturer: Honeywell Sensing and Productivity Solutions (same manufacturer ensures protocol consistency)
• Series: TARS (maintains design family compatibility)
• Output Type: CAN Bus (required for system integration)
• Operating Temperature Range: -40°C to 85°C (must match or exceed operational envelope)
• Package Type: Module with Chassis Mount (physical and mechanical compatibility)
• RoHS Compliance Status: Active compliance certification required

Secondary Consideration:

• Sensor Axis Configuration: The TARS-HCASS features 6-axis sensing (3-axis accelerometer + 3-axis gyroscope). Substitute parts with reduced axis count (3-axis) may be functionally compatible depending on system requirements, as they maintain the core accelerometer and gyroscope functionality within a single CAN output architecture.

Parameter Comparison

Engineering Selection Recommendations

TARS-BAASS as Primary Substitute:

The TARS-BAASS is the manufacturer-recommended equivalent for the obsolete TARS-HCASS. Selection of this substitute is based on the following engineering factors:

1. Product Status Alignment: The TARS-BAASS maintains active production and support status, ensuring long-term availability and supply chain continuity.

2. Regulatory Compliance: The TARS-BAASS meets ROHS3 compliance, representing current regulatory standards. The original TARS-HCASS meets RoHS Compliant status; the substitute exceeds this requirement.

3. Functional Compatibility: Both components operate within the identical temperature range (-40°C to 85°C) and share the same mechanical package (Module, Chassis Mount), enabling direct physical integration into existing mounting structures.

4. CAN Bus Architecture: Both components utilize CAN bus output. The TARS-HCASS implements J1939 protocol variant, while the TARS-BAASS implements standard CAN protocol. System integration requires verification of protocol compatibility at the application level.

5. Sensor Configuration Difference: The TARS-BAASS provides 3-axis sensing (accelerometer and gyroscope) compared to the TARS-HCASS 6-axis configuration. Applications requiring full 6-axis data must evaluate whether 3-axis output meets functional requirements or if alternative solutions are necessary.

6. Inventory Availability: The TARS-BAASS has 852 pieces in new original stock, providing immediate procurement capability.

Frequently Asked Questions (FAQ)

Q1: Can the TARS-BAASS directly replace the TARS-HCASS in existing systems?

A: Physical and mechanical compatibility is confirmed (identical package type, mounting method, and operating temperature range). However, two factors require evaluation: (1) CAN protocol compatibility—the TARS-HCASS uses J1939 protocol while the TARS-BAASS uses standard CAN; verify your system controller supports both protocols. (2) Sensor axis reduction—the TARS-BAASS provides 3-axis output versus the TARS-HCASS 6-axis output; confirm your application does not require the additional 3 axes of data.

Q2: What is the difference between CAN J1939 and standard CAN output?

A: J1939 is a specialized CAN protocol variant commonly used in heavy-duty vehicle and industrial equipment applications. Standard CAN is the base protocol. Both are CAN-based but use different message formatting and parameter definitions. System compatibility depends on your controller's protocol support.

Q3: Why does the TARS-BAASS have fewer sensor axes than the TARS-HCASS?

A: The TARS-BAASS is a different product variant within the TARS series, designed for applications requiring 3-axis motion sensing. The 3-axis configuration (typically X, Y, Z acceleration and rotation) is sufficient for many industrial motion monitoring applications. Determine whether your system requires all 6 axes or if 3-axis data is functionally adequate.

Q4: Are there any compliance differences between the two parts?

A: The TARS-HCASS is RoHS Compliant. The TARS-BAASS is ROHS3 Compliant, which represents the current RoHS standard revision. ROHS3 compliance exceeds RoHS Compliant status and is preferred for new designs. Both parts meet environmental and regulatory requirements for industrial applications.

Q5: What is the packaging difference between the two parts?

A: The TARS-HCASS packaging is listed as "-" (not specified in available data). The TARS-BAASS is supplied in Box packaging. Both components use identical Module package types with Chassis Mount configuration for system integration.

Q6: Is the TARS-BAASS the only substitute available?

A: Based on the provided manufacturer data, the TARS-BAASS is the manufacturer-recommended substitute. It is the only equivalent listed for the obsolete TARS-HCASS within the Honeywell TARS product family.