G3TB-OA203PZ-US DC5-24 Equivalent & Substitute Parts

Part Overview

The G3TB-OA203PZ-US DC5-24 is an AC output module manufactured by Omron Automation and Safety, designed for industrial automation applications requiring AC signal switching. This module accepts a 5–24VDC control input and switches AC loads up to 3A at 75–264VAC output levels. The product is classified as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is necessary to ensure continued availability for system maintenance, replacement, and new installations where this specific model is no longer procurable.

Substiute Parts

G3TB-OA203PZ-US DC5-24

Omron Automation and SafetyIn Stock: 1164G3TB-OA203PZ-US DC5-24 Datasheet

Current PartRFQ

G3R-OA202SZN-UTU DC5-24

Omron Automation and SafetyIn Stock: 1157G3R-OA202SZN-UTU DC5-24 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the G3TB-OA203PZ-US DC5-24 is determined by the following critical electrical and mechanical parameters:

• Input Voltage Range: 5–24VDC control signal compatibility
• Output Voltage Range: 75–264VAC switching capability
• Output Current Rating: Minimum 3A continuous switching capacity
• Switching Timing: 1/2 Cycle + 1ms turn-on and turn-off response
• Environmental Compliance: RoHS compliance and MSL rating
• Physical Form Factor: Module style and packaging compatibility

The substitute part G3R-OA202SZN-UTU DC5-24 shares the same input voltage range (5–24VDC), output voltage range (75–264VAC), switching timing characteristics (1/2 Cycle + 1ms), and environmental compliance profile. However, the output current rating differs: the substitute is rated for 2A maximum output current, compared to the original 3A rating. This represents a functional downgrade in current-switching capacity and must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

The G3R-OA202SZN-UTU DC5-24 is the manufacturer-recommended substitute for the G3TB-OA203PZ-US DC5-24. Both modules are manufactured by Omron Automation and Safety and maintain identical input voltage ranges, output voltage ranges, and switching response times. The substitute part carries Active product status, ensuring continued availability and support, whereas the original is Last Time Buy.

The primary technical difference is the output current rating: the substitute is rated for 2A versus the original 3A. Applications requiring the full 3A output capacity must evaluate whether the 2A rating of the substitute meets load requirements. For applications operating at or below 2A output current, the substitute provides functional equivalence with the advantage of active product status and ROHS3 compliance.

Input current consumption increases from 5 mA to 15 mA in the substitute, which may impact control circuit design in current-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the G3R-OA202SZN-UTU DC5-24 directly replace the G3TB-OA203PZ-US DC5-24 in all applications?

A: Direct replacement is possible only if the application load current does not exceed 2A. The substitute is rated for 2A maximum output current, whereas the original supports 3A. If your application requires the full 3A capacity, the substitute will not provide equivalent performance.

Q: What is the difference in input current consumption between these modules?

A: The original G3TB-OA203PZ-US DC5-24 draws 5 mA input current, while the substitute G3R-OA202SZN-UTU DC5-24 draws 15 mA. This threefold increase may require circuit redesign in applications with limited control signal sourcing capacity.

Q: Are the switching response times identical?

A: Yes. Both modules exhibit identical turn-on and turn-off timing of 1/2 Cycle + 1ms, ensuring equivalent switching performance in time-critical applications.

Q: What is the significance of the product status difference?

A: The original part is Last Time Buy, indicating production discontinuation. The substitute is Active, meaning it remains in production with ongoing manufacturer support, availability, and potential design improvements.

Q: Do both modules meet the same environmental compliance standards?

A: Both modules carry MSL 1 (Unlimited) ratings. The original is RoHS Compliant, while the substitute is ROHS3 Compliant, representing an enhanced compliance level. Both are suitable for standard industrial environments.

Q: Are the physical form factors compatible?

A: The original uses Mini style packaging, while the substitute uses QC style packaging. Physical mounting and connector compatibility must be verified against your specific installation requirements.