70M-OAC5A-L AC Output Module Equivalent & Substitute Parts

Part Overview

The 70M-OAC5A-L is an AC output module manufactured by Grayhill Inc., designed to switch AC loads up to 3A at voltages ranging from 24 to 280VAC. The module operates from a 5VDC supply with a 16mA input current requirement and features symmetrical switching times of 8.33ms for both turn-on and turn-off operations.

This product is classified as obsolete. Locating equivalent or substitute components becomes necessary when the original part reaches end-of-life status, inventory depletion occurs, or long-term supply continuity cannot be assured. Substitute parts must maintain functional compatibility across critical electrical parameters including input voltage, output voltage range, output current capacity, and switching characteristics.

Substiute Parts

70M-OAC5A-L

Grayhill Inc.In Stock: 79970M-OAC5A-L Datasheet

Current PartRFQ

M-OAC5A

Sensata-CrydomIn Stock: 961M-OAC5A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 70M-OAC5A-L is determined by strict alignment with the following critical electrical parameters:

Input Specifications: The substitute must accept 5VDC input supply voltage. Input current consumption may vary within acceptable design margins.

Output Specifications: The substitute must support the full AC output voltage range of 24 to 280VAC. Output current capacity must meet or exceed 3A to ensure the substitute can handle the same load conditions as the original part.

Switching Characteristics: Turn-on and turn-off times must match the 8.33ms specification to maintain system timing integrity and control response characteristics.

Mechanical & Environmental Compliance: The substitute must maintain Mini style form factor compatibility, RoHS compliance status, and REACH compliance status to ensure regulatory and environmental standards are preserved.

The M-OAC5A manufactured by Sensata-Crydom qualifies as a substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The M-OAC5A from Sensata-Crydom is an active product with current manufacturing status, providing supply continuity advantages over the obsolete 70M-OAC5A-L. Both parts maintain identical input voltage specifications (5VDC), output voltage range (24–280VAC), and switching timing characteristics (8.33ms).

The M-OAC5A demonstrates higher output current capacity at 3.5A compared to the 3A specification of the original part, providing additional load-handling margin. Input current consumption increases from 16mA to 20mA, a 25% increase that remains within typical design tolerances for 5VDC supply circuits.

Both parts maintain equivalent environmental and regulatory compliance: RoHS compliance (with the substitute meeting the more recent ROHS3 standard), REACH unaffected status, and identical ECCN/HTSUS classifications. Packaging differs between the original (unspecified) and substitute (Tray), which may affect procurement and handling procedures but does not impact functional compatibility.

The M-OAC5A is suitable for direct substitution in applications where the 70M-OAC5A-L is specified, provided that the increased input current draw and higher output current capacity do not conflict with system design constraints.

Frequently Asked Questions (FAQ)

Q: Can the M-OAC5A directly replace the 70M-OAC5A-L in existing designs?

A: Yes. Both parts share identical input voltage (5VDC), output voltage range (24–280VAC), and switching times (8.33ms). The M-OAC5A's higher output current rating (3.5A vs. 3A) and increased input current (20mA vs. 16mA) are compatible with standard circuit designs. Verify that your 5VDC supply can accommodate the additional 4mA input current draw.

Q: What is the significance of the output current difference (3A vs. 3.5A)?

A: The M-OAC5A provides 0.5A additional output current capacity. This represents a design margin improvement and does not create compatibility issues. The substitute can safely handle any load that the original part was designed to switch.

Q: Why does the 70M-OAC5A-L show as obsolete?

A: Obsolete status indicates the part has reached end-of-life and is no longer manufactured by Grayhill Inc. Existing inventory may be available through authorized distributors, but long-term supply cannot be assured. The M-OAC5A provides an active alternative with equivalent functionality.

Q: Are there packaging differences between these parts?

A: Yes. The original part packaging is unspecified in available documentation. The M-OAC5A is supplied in Tray packaging. Confirm that tray packaging is compatible with your assembly and storage procedures.

Q: Do both parts meet the same regulatory standards?

A: Both parts are REACH Unaffected and RoHS compliant. The M-OAC5A meets the ROHS3 standard, which is a more recent revision of RoHS requirements. Both parts carry identical ECCN (EAR99) and HTSUS (8536.49.0055) classifications for export and tariff purposes.

Q: What is the inventory status for these parts?

A: The 70M-OAC5A-L has 741 pieces in stock as new original inventory. The M-OAC5A has 935 pieces in stock as new original inventory. Availability may vary by distributor and time of inquiry.