SSA-500 Current Sensor Equivalent & Substitute Parts

Part Overview

The Riedon SSA-500 is an isolated current sensor module designed for DC current measurement applications up to 500A. This single-channel shunt-based sensor provides ratiometric voltage output with bidirectional measurement capability and chassis mount configuration. The SSA-500 carries a "Not For New Designs" product status, indicating that alternative solutions should be evaluated for new development projects. Identifying equivalent and substitute parts is essential for design flexibility, supply chain continuity, and access to actively supported product lines.

Substiute Parts

SSA-500

RiedonIn Stock: 1064SSA-500 Datasheet

Current PartRFQ

SSA2-500

Riedon products by BournsIn Stock: 1409SSA2-500 Datasheet

SimilarRFQ

SSA-100

RiedonIn Stock: 1282SSA-100 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSA-500 are identified based on strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Current sensing range (500A nominal)
• Sensor type (Shunt-based)
• Number of channels (1 channel)
• Output configuration (Ratiometric, Voltage)
• Polarization (Bidirectional)
• Mounting type (Chassis Mount)
• Package type (Module)
• Supply voltage compatibility (3V ~ 5.5V)
• Frequency response (300kHz)
• Compliance certifications (ROHS3, REACH Unaffected)

Substitute Categories:

Direct Functional Equivalent (Same Current Range): The SSA2-500 provides identical 500A current sensing capability with the same output characteristics and mounting configuration. This part is manufactured by Riedon products by Bourns and carries Active product status, making it suitable for new designs.

Parametric Equivalent (Reduced Current Range): The SSA-100 operates within the same SSA series with identical electrical characteristics and performance specifications, but with a 100A current sensing range. This part is applicable when system requirements permit lower current measurement thresholds.

Parameter Comparison

Engineering Selection Recommendations

SSA2-500 Selection Criteria:

The SSA2-500 is the primary substitute for new development projects. This part maintains identical 500A current sensing capability and shares all core electrical and mechanical specifications with the SSA-500. The SSA2-500 carries Active product status, indicating ongoing manufacturer support and availability. The extended operating temperature range (-40°C ~ 125°C) provides additional thermal margin compared to the SSA-500. The SSA2-500 supports both AC and DC measurement modes, expanding application flexibility. Accuracy specification of ±0.2% remains within acceptable tolerance for most industrial current sensing applications. ROHS3 compliance and REACH unaffected status align with regulatory requirements.

SSA-100 Selection Criteria:

The SSA-100 is applicable when system design permits operation within a 100A current sensing range. This part maintains identical electrical performance characteristics, response time, and frequency response as the SSA-500. Selection of the SSA-100 is appropriate for applications with lower current measurement requirements or where cost optimization is a design objective. The SSA-100 shares the same supply voltage range, output configuration, and mounting specifications as the SSA-500, ensuring mechanical and electrical compatibility within the SSA series platform.

Frequently Asked Questions (FAQ)

Q: Can the SSA2-500 directly replace the SSA-500 in existing designs?

A: The SSA2-500 provides functional equivalence for 500A current sensing applications. Both parts share identical current sensing range, output type, supply voltage requirements, response time, and mounting configuration. The SSA2-500 extends the operating temperature range to -40°C ~ 125°C and supports AC/DC measurement modes. Accuracy differs by 0.1% (SSA2-500 at ±0.2% versus SSA-500 at ±0.1%), which must be evaluated against application requirements. Mechanical and electrical interfaces are compatible.

Q: What is the primary difference between SSA-500 and SSA2-500?

A: The SSA2-500 is manufactured by Riedon products by Bourns and carries Active product status, while the SSA-500 is marked "Not For New Designs." The SSA2-500 provides extended temperature operation (-40°C ~ 125°C versus -40°C ~ 85°C) and supports AC/DC measurement modes compared to DC-only operation of the SSA-500. Accuracy specification is ±0.2% for SSA2-500 and ±0.1% for SSA-500.

Q: When should the SSA-100 be considered as a substitute?

A: The SSA-100 is appropriate when application requirements permit operation within a 100A current sensing range. This part maintains identical electrical performance, response characteristics, and mounting specifications as the SSA-500 within the SSA series platform. Selection is based on actual system current measurement requirements rather than maximum available range.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both SSA2-500 and SSA-100 are ROHS3 compliant and REACH unaffected, matching the regulatory compliance status of the SSA-500.

Q: What is the impact of the ±0.2% accuracy specification on SSA2-500 compared to SSA-500?

A: The SSA2-500 accuracy of ±0.2% represents a 0.1% tolerance increase compared to the SSA-500 at ±0.1%. This difference must be evaluated against application-specific accuracy requirements. For most industrial current sensing applications, ±0.2% accuracy remains within acceptable operating parameters.

Q: Do all substitute parts support bidirectional current measurement?

A: Yes. The SSA2-500 and SSA-100 both support bidirectional polarization, matching the SSA-500 specification for current measurement in both directions.

Q: Are there packaging or mounting differences between substitute parts?

A: No. All substitute parts utilize identical Chassis Mount configuration and Module package type, ensuring mechanical compatibility and installation consistency across the SSA and SSA2 series.