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AS33-M50M-S54 Equivalent & Substitute Parts
Part Overview
The AS33-M50M-S54 is a 33mm magnetic encoder module manufactured by Broadcom, designed for chassis mount and motor applications with SSI (Synchronous Serial Interface) output. This component features a 50-bit resolution with 5V supply operation and external magnet actuation. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain system functionality and ensure continued component availability for new designs and field replacements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AS33-M50M-S54 |
| Manufacturer | Broadcom |
| Series | AS33-M50M |
| Description | 33MM MOD 50B MT 5V M4 HUB SSI |
| Encoder Type | Magnetic |
| Output Type | SSI |
| Voltage - Supply | 4.5V ~ 5.5V |
| Actuator Type | External Magnet, Not Included |
| Mounting Type | Chassis Mount, Motors |
| Orientation | Vertical |
| Termination Style | Connector |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
The AS33-M50M-S54 can be substituted with the AS33-M42M-S54 based on the following critical parameters that determine functional compatibility:
Substitution-Determining Parameters:
- Encoder Type: Both parts use magnetic encoding technology
- Output Type: Both parts implement SSI interface
- Voltage Supply Range: Both operate within 4.5V ~ 5.5V specification
- Actuator Type: Both use external magnet actuation (not included)
- Mounting Type: Both support chassis mount and motor applications
- Orientation: Both maintain vertical orientation
- Termination Style: Both use connector termination
- RoHS Compliance: Both meet ROHS3 requirements
Key Difference: The primary distinction between these parts is the resolution specification: AS33-M50M-S54 provides 50-bit resolution, while AS33-M42M-S54 provides 42-bit resolution with programmable pulses per revolution capability. The AS33-M42M-S54 is currently in active production status with confirmed inventory availability.
Parameter Comparison
| Parameter | AS33-M50M-S54 (Main Part) | AS33-M42M-S54 (Substitute) |
|---|---|---|
| Manufacturer | Broadcom | Broadcom Limited |
| Series | AS33-M50M | AS33-M42M |
| Encoder Type | Magnetic | Magnetic |
| Output Type | SSI | SSI |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Actuator Type | External Magnet, Not Included | External Magnet, Not Included |
| Detent | No | No |
| Built in Switch | No | No |
| Mounting Type | Chassis Mount, Motors | Chassis Mount, Motors |
| Orientation | Vertical | Vertical |
| Termination Style | Connector | Connector |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Packaging | - | Tray |
Engineering Selection Recommendations
The AS33-M42M-S54 serves as the active production equivalent for the obsolete AS33-M50M-S54. Selection of the substitute part is supported by:
- Product Status Alignment: The AS33-M42M-S54 maintains active production status with confirmed inventory of 1074 units, ensuring long-term component availability compared to the obsolete AS33-M50M-S54
- Regulatory Compliance: Both parts maintain ROHS3 compliance, meeting current environmental and regulatory requirements
- Functional Compatibility: Identical encoder technology, output interface, supply voltage range, mounting configuration, and termination style ensure mechanical and electrical compatibility within the AS33 series platform
- Export Classification: The substitute part carries EAR99 classification with defined HTSUS code 8543.70.4500, providing clear regulatory documentation for procurement and logistics
Frequently Asked Questions (FAQ)
Q: What is the primary reason for substituting AS33-M50M-S54 with AS33-M42M-S54?
A: The AS33-M50M-S54 is obsolete and no longer in production. The AS33-M42M-S54 is the active equivalent within the Broadcom AS33 series, offering identical mechanical mounting, electrical interface, and supply voltage specifications.
Q: Are there differences in resolution between these parts?
A: Yes. The AS33-M50M-S54 specifies 50-bit resolution, while the AS33-M42M-S54 provides 42-bit resolution with programmable pulses per revolution. Resolution requirements must be evaluated against application specifications before substitution.
Q: Will the AS33-M42M-S54 work in existing AS33-M50M-S54 applications?
A: Both parts share identical mounting type (chassis mount, motors), orientation (vertical), termination style (connector), voltage supply range (4.5V ~ 5.5V), and SSI output interface. Compatibility depends on whether the application can operate with 42-bit resolution instead of 50-bit resolution.
Q: What packaging is available for the substitute part?
A: The AS33-M42M-S54 is supplied in tray packaging, whereas the original part specification does not define packaging format.
Q: Are both parts RoHS compliant?
A: Yes, both the AS33-M50M-S54 and AS33-M42M-S54 meet ROHS3 compliance requirements.
Q: What is the inventory status of the substitute part?
A: The AS33-M42M-S54 has 1074 units in stock as new original inventory, providing immediate availability for procurement.
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