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Equivalent & Substitute Parts for AA3MB
Part Overview
The AA3MB is a 3-position circular connector receptacle with male pins manufactured by Switchcraft Inc. under the Q-G® AA series. This component is designed for audio and instrumentation applications, featuring solder cup termination and latch lock fastening. The part is currently active in production with 950 units in stock. Alternative components may be required due to inventory constraints, application-specific requirements, or supply chain considerations.
Substiute Parts
Key Parameters
| Parameter | AA3MB Specification |
|---|---|
| Connector Type | Receptacle, Male Pins |
| Number of Positions | 3 |
| Shell Size - Insert | XLR |
| Termination | Solder Cup |
| Mounting Type | Free Hanging (In-Line) |
| Fastening Type | Latch Lock |
| Current Rating | 15A |
| Voltage Rating | 125VAC |
| Shell Material | Zinc |
| Shell Finish | Black |
| Contact Finish - Mating | Silver |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the AA3MB is determined by the following critical parameters:
- Connector Configuration: Receptacle type with male pins and 3-position XLR shell size
- Termination Method: Solder cup termination for PCB or cable assembly integration
- Electrical Performance: Current rating of 15A minimum and voltage compatibility
- Mechanical Compatibility: Free hanging in-line mounting with keyed orientation
- Material and Finish Standards: Metal shell with black finish and silver-plated mating contacts
- Regulatory Compliance: ROHS3 compliance and REACH unaffected status
The substitute part AC3MMB meets these core substitution criteria while maintaining functional equivalence for the specified applications.
Parameter Comparison
| Parameter | AA3MB (Switchcraft) | AC3MMB (Amphenol Audio) | Compatibility |
|---|---|---|---|
| Connector Type | Receptacle, Male Pins | Receptacle, Male Pins | Match |
| Number of Positions | 3 | 3 | Match |
| Shell Size - Insert | XLR | XLR | Match |
| Termination | Solder Cup | Solder Cup | Match |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Match |
| Fastening Type | Latch Lock | Latch Holder | Functionally Equivalent |
| Current Rating | 15A | 15A | Match |
| Voltage Rating | 125VAC | Not Specified | Acceptable |
| Shell Material | Zinc | Zinc Die Cast | Match |
| Shell Finish | Black | Black | Match |
| Contact Finish - Mating | Silver | Silver | Match |
| Orientation | Keyed | Keyed | Match |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Match |
| REACH Status | REACH Unaffected | REACH Unaffected | Match |
| Product Status | Active | Active | Match |
Engineering Selection Recommendations
Both AA3MB and AC3MMB are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The AC3MMB substitute provides equivalent electrical performance at 15A current rating and maintains mechanical compatibility through identical XLR 3-position solder cup configuration. The fastening mechanism differs between latch lock and latch holder designs, both of which provide secure connection retention. Selection between these parts should be based on availability, lead time requirements, and application-specific mechanical constraints.
Frequently Asked Questions (FAQ)
Q: Can AC3MMB be used as a direct replacement for AA3MB in audio applications?
A: Yes. Both components are 3-position XLR receptacles with male pins, solder cup termination, and 15A current rating. The keyed orientation and silver-plated contacts ensure mechanical and electrical compatibility in audio and instrumentation circuits.
Q: What is the difference between latch lock and latch holder fastening types?
A: Both fastening mechanisms provide secure mating retention. Latch lock and latch holder designs differ in mechanical implementation but serve the same functional purpose of preventing accidental disconnection.
Q: Are there cable opening size differences between AA3MB and AC3MMB?
A: Yes. AA3MB accommodates cable openings of 0.210" to 0.300" (5.33mm to 7.62mm), while AC3MMB accommodates 0.118" to 0.256" (3.00mm to 6.50mm). Cable diameter must fall within the specified range for the selected component.
Q: Do both parts meet the same compliance standards?
A: Yes. Both AA3MB and AC3MMB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.
Q: What is the operating temperature range for these connectors?
A: AA3MB does not specify an operating temperature range in the provided data. AC3MMB operates from -25°C to 75°C. Application requirements should determine suitability for specific temperature environments.
Q: Are these connectors suitable for outdoor or harsh environment applications?
A: AC3MMB provides IP40 ingress protection rating. AA3MB does not specify an ingress protection rating. Environmental exposure requirements should guide component selection.
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