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AV33049 Equivalent & Substitute Parts
Part Overview
The Panasonic Electric Works AV33049 is a snap action switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 3A at 125V AC and 30V DC. This component features a round pin plunger actuator and chassis mount termination with solder lugs, designed for on-momentary switching applications. The AV33049 is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this functionality is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AV33049 |
| Manufacturer | Panasonic Electric Works |
| Circuit Configuration | SPDT |
| Switch Function | On-Momentary |
| Current Rating | 3A (AC/DC) |
| Voltage Rating - AC | 125V |
| Voltage Rating - DC | 30V |
| Actuator Type | Round Pin Plunger |
| Mounting Type | Chassis Mount |
| Termination Style | Solder Lug |
| Operating Temperature Range | -25°C to 85°C |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the AV33049 is determined by the following critical parameters:
- Circuit Configuration: SPDT topology is mandatory for functional equivalence
- Switch Function: On-momentary operation must be preserved
- Current and Voltage Ratings: Substitute parts must meet or exceed 3A at 125V AC and 30V DC specifications
- Mounting and Termination: Chassis mount with solder connection points ensures mechanical and electrical compatibility
- Operating Temperature Range: The substitute must support the -25°C to 85°C operating window or broader range
- Actuator Type: Round pin plunger actuation is the primary mechanical interface
The Honeywell Sensing and Productivity Solutions 311SM730-T2 qualifies as a substitute based on matching SPDT circuit, on-momentary function, chassis mount configuration, and solder termination. The 311SM730-T2 exceeds the AV33049 current rating (4A AC / 5A DC) and voltage rating (250V AC), providing enhanced electrical capacity. The actuator type differs (lever vs. pin plunger), requiring mechanical interface verification during integration.
Parameter Comparison
| Parameter | AV33049 (Panasonic) | 311SM730-T2 (Honeywell) | Compatibility Notes |
|---|---|---|---|
| Circuit Configuration | SPDT | SPDT | Matched |
| Switch Function | On-Momentary | On-Momentary | Matched |
| Current Rating | 3A (AC/DC) | 4A (AC), 5A (DC) | Substitute exceeds requirement |
| Voltage Rating - AC | 125V | 250V | Substitute exceeds requirement |
| Voltage Rating - DC | 30V | 30V | Matched |
| Mounting Type | Chassis Mount | Chassis Mount | Matched |
| Termination Style | Solder Lug | Solder Turret | Both solder-based; mechanical footprint verification required |
| Actuator Type | Round Pin Plunger | Lever, Straight | Different mechanical interface |
| Operating Temperature Range | -25°C to 85°C | -55°C to 125°C | Substitute provides extended range |
| Mechanical Life | 500,000 Cycles | 10,000,000 Cycles | Substitute provides significantly higher cycle rating |
| Product Status | Obsolete | Active | Substitute is currently manufactured |
Engineering Selection Recommendations
The Honeywell 311SM730-T2 is an active production substitute for the obsolete Panasonic AV33049. Selection is based on:
- Functional Equivalence: Both parts provide SPDT on-momentary switching with matching circuit topology and operating characteristics
- Electrical Compliance: The 311SM730-T2 meets and exceeds the voltage and current specifications of the AV33049, ensuring safe operation in existing applications
- Manufacturing Status: The 311SM730-T2 is actively manufactured, providing long-term supply availability compared to the obsolete AV33049
- Regulatory Compliance: The 311SM730-T2 is RoHS Compliant, meeting modern environmental standards; both parts carry EAR99 ECCN classification and share identical HTSUS codes
Integration Consideration: The actuator type transition from round pin plunger to lever requires mechanical interface validation. The solder termination style differs (lug vs. turret), necessitating PCB or chassis mounting point assessment before deployment.
Frequently Asked Questions (FAQ)
Q: Can the Honeywell 311SM730-T2 directly replace the Panasonic AV33049 in existing designs?
A: Electrical substitution is valid based on SPDT circuit matching and exceeded voltage/current ratings. Mechanical substitution requires verification of actuator interface (lever vs. pin plunger) and solder termination point compatibility (lug vs. turret) with the existing mechanical assembly.
Q: What are the key differences between these two switches?
A: The primary differences are actuator type (round pin plunger vs. lever), termination style (solder lug vs. solder turret), and operating force characteristics. The 311SM730-T2 provides higher electrical ratings, extended temperature range, and significantly higher mechanical cycle life (10,000,000 vs. 500,000 cycles).
Q: Is the Honeywell 311SM730-T2 suitable for applications requiring the exact same mechanical footprint?
A: Mechanical footprint compatibility cannot be confirmed from provided specifications. Physical dimension comparison and mounting hole verification are required before integration.
Q: What compliance certifications apply to both parts?
A: Both parts are classified as EAR99 for export control and share the same HTSUS commodity code (8536.50.7000). The Honeywell 311SM730-T2 is RoHS Compliant; the Panasonic AV33049 status is not specified in available data.
Q: Are there packaging or moisture sensitivity concerns?
A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture handling requirements during storage or assembly.
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