SSA-1000 Current Sensor Equivalent & Substitute Parts

Part Overview

The SSA-1000 is an isolated current sensor module manufactured by Riedon, designed for DC current measurement applications up to 1000A. This shunt-based sensor provides ratiometric voltage output with bidirectional measurement capability and is housed in a chassis-mount module package. The SSA-1000 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 necessary to ensure design continuity, improve component availability, and support active product lines where applicable.

Substiute Parts

SSA-1000

RiedonIn Stock: 745SSA-1000 Datasheet

Current PartRFQ

SSA2-1000

RiedonIn Stock: 1439SSA2-1000 Datasheet

SimilarRFQ

SSA-100

RiedonIn Stock: 1282SSA-100 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSA-1000 are identified based on functional equivalence within the Riedon current sensor product family. The substitution logic is determined by the following critical parameters:

Primary Substitution Criteria:

• Sensor type (Shunt-based measurement)
• Current sensing capability (1000A range)
• Number of channels (1 channel)
• Output configuration (Ratiometric voltage output)
• Polarization (Bidirectional measurement)
• Mounting type (Chassis mount module)
• Supply voltage compatibility (3V ~ 5.5V)
• Frequency response (300kHz)
• Response time (1.6µs)

Substitute Categories:

1. Direct Functional Equivalent (SSA2-1000): Maintains identical current sensing range, channel count, output type, and mechanical form factor. Extends measurement capability to AC/DC and improves product status to Active. Operating temperature range extends to -40°C ~ 125°C. Accuracy specification changes from ±0.1% to ±0.2%.

2. Parametric Equivalent (SSA-100): Shares identical electrical characteristics, frequency response, response time, and supply voltage requirements. Differs in current sensing range (100A versus 1000A). Maintains same product status classification and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (1000A Measurement Requirement):

The SSA2-1000 serves as the primary substitute for the SSA-1000 in applications requiring 1000A current sensing. Both parts maintain identical current sensing capability, channel configuration, output type, and mechanical form factor. The SSA2-1000 carries Active product status, making it the preferred choice for new designs and long-term supply chain stability. The SSA2-1000 extends measurement capability to AC/DC operation, providing broader application flexibility. The extended operating temperature range (-40°C ~ 125°C) accommodates more demanding thermal environments compared to the SSA-1000 (-40°C ~ 85°C). The accuracy specification of ±0.2% on the SSA2-1000 remains within acceptable tolerance for most industrial current measurement applications. Both parts maintain ROHS3 compliance and identical supply voltage requirements.

For Lower Current Applications (100A Measurement Requirement):

The SSA-100 provides parametric equivalence when application requirements permit operation at 100A sensing levels. This part maintains identical electrical performance characteristics including frequency response, response time, linearity, and accuracy specifications. The SSA-100 shares the same supply voltage range and mounting configuration. Selection of the SSA-100 is appropriate only when the application current measurement requirement does not exceed 100A.

Compliance and Regulatory Considerations:

All three parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment for industrial and commercial applications. The ECCN classification (EAR99) and HTSUS code (9030.33.3800) are consistent across all parts, supporting uniform procurement and export documentation.

Frequently Asked Questions (FAQ)

Q: Can the SSA2-1000 directly replace the SSA-1000 in existing designs?

A: The SSA2-1000 maintains functional equivalence for 1000A DC current measurement applications. Both parts share identical current sensing range, channel count, output type, supply voltage requirements, frequency response, response time, and mechanical form factor. Direct substitution is supported from an electrical and mechanical standpoint. The SSA2-1000 extends measurement capability to AC/DC operation and provides an extended operating temperature range to -40°C ~ 125°C. The accuracy specification changes from ±0.1% to ±0.2%, which must be evaluated against application tolerance requirements.

Q: What is the primary difference between the SSA-1000 and SSA2-1000?

A: The SSA2-1000 is the active product line successor to the SSA-1000. Key differences include: (1) Product status changes from "Not For New Designs" to "Active," (2) Measurement capability extends from DC-only to AC/DC, (3) Operating temperature range extends from -40°C ~ 85°C to -40°C ~ 125°C, and (4) Accuracy specification changes from ±0.1% to ±0.2%. All other electrical and mechanical parameters remain identical.

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

A: The SSA-100 is a parametric equivalent suitable only for applications where the maximum current measurement requirement does not exceed 100A. This part maintains identical electrical performance characteristics including frequency response (300kHz), response time (1.6µs), linearity (±0.1%), accuracy (±0.1%), and supply voltage range (3V ~ 5.5V). Selection of the SSA-100 is not appropriate for applications requiring 1000A measurement capability.

Q: Are all substitute parts compatible with the same supply voltage?

A: Yes. The SSA-1000, SSA2-1000, and SSA-100 all operate within the identical supply voltage range of 3V ~ 5.5V. No power supply modifications are required when substituting between these parts.

Q: Do the substitute parts maintain the same mounting configuration?

A: Yes. All three parts utilize chassis mount module packaging. The mechanical form factor and mounting interface remain consistent across the SSA-1000, SSA2-1000, and SSA-100.

Q: What is the significance of the "Not For New Designs" product status?

A: The "Not For New Designs" designation indicates that the SSA-1000 is in a mature or declining phase of its product lifecycle. For new development projects, the SSA2-1000 is the recommended alternative, as it carries Active product status and ensures long-term availability and manufacturer support.

Q: Are there any accuracy differences between the substitute parts?

A: The SSA-1000 and SSA-100 both specify ±0.1% accuracy. The SSA2-1000 specifies ±0.2% accuracy. This 0.1% difference must be evaluated against application tolerance requirements. For applications with stringent accuracy specifications, the SSA-1000 or SSA-100 may be required.

Q: Can the SSA2-1000 measure AC current while the SSA-1000 cannot?

A: Yes. The SSA2-1000 supports AC/DC measurement, while the SSA-1000 is limited to DC measurement. Applications requiring AC current sensing capability must utilize the SSA2-1000.