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Equivalent & Substitute Parts for 34ASP18T7M1RT
Part Overview
The Grayhill Inc. 34ASP18T7M1RT is an SPDT toggle switch rated for 0.4VA at 20V, designed for panel mount applications with a non-illuminated standard round actuator. This component is classified as Active product status with full RoHS compliance and unlimited moisture sensitivity rating. Alternative equivalent parts become necessary when addressing specific application requirements such as higher current capacity, enhanced electrical life cycles, or alternative actuator configurations while maintaining core SPDT switching functionality and panel mount compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 34ASP18T7M1RT |
| Manufacturer | Grayhill Inc. |
| Series | 34A |
| Circuit Configuration | SPDT |
| Switch Function | On-On |
| Current Rating | 0.4VA (AC/DC) |
| Voltage Rating - AC | 20V |
| Voltage Rating - DC | 20V |
| Mounting Type | Panel Mount |
| Panel Cutout Dimensions | Circular - 11.91mm Dia |
| Bushing Thread | 15/32-32 |
| Termination Style | Solder Lug |
| Operating Temperature Range | -30°C ~ 85°C |
| Electrical Life | 40,000 Cycles |
| RoHS Status | RoHS Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the 34ASP18T7M1RT is determined by the following critical parameters:
Core Compatibility Requirements:
- Circuit configuration: SPDT (Single Pole Double Throw)
- Switch function: On-On
- Mounting type: Panel Mount
- Panel cutout dimensions: Circular 11.91mm Dia
- Bushing thread: 15/32-32
- Termination style: Solder Lug
- Operating temperature range: -30°C ~ 85°C
Allowable Variation Parameters:
- Current rating: May exceed 0.4VA specification
- Voltage rating: May exceed 20V specification
- Actuator type: Standard Round or alternative configurations
- Actuator length: Variation permitted within mechanical constraints
- Electrical life: May exceed 40,000 cycles
- Illumination: Non-illuminated requirement maintained
- RoHS/REACH compliance: Equivalent or higher compliance acceptable
The three substitute parts listed (100SP1T8B13M1QEH, 7101T2PZQE, 7101TZQE) maintain all core compatibility requirements while offering enhanced electrical ratings and extended operational life cycles.
Parameter Comparison
| Parameter | 34ASP18T7M1RT (Grayhill) | 100SP1T8B13M1QEH (E-Switch) | 7101T2PZQE (C&K) | 7101TZQE (C&K) |
|---|---|---|---|---|
| Circuit Configuration | SPDT | SPDT | SPDT | SPDT |
| Switch Function | On-On | On-On | On-On | On-On |
| Current Rating (AC/DC) | 0.4VA | 5A | 5A | 5A |
| Voltage Rating - AC | 20V | 120V | 120V | 120V |
| Voltage Rating - DC | 20V | 28V | 28V | 28V |
| Mounting Type | Panel Mount | Panel Mount | Panel Mount | Panel Mount |
| Panel Cutout Dimensions | Circular - 11.91mm Dia | Circular - 11.91mm Dia | Circular - 11.91mm Dia | Circular - 11.91mm Dia |
| Bushing Thread | 15/32-32 | 15/32-32 | 15/32-32 | 15/32-32 |
| Termination Style | Solder Lug | Solder Lug | Solder Lug | Solder Lug |
| Actuator Type | Standard Round | Standard Round | Flat Anti-Rotation | Standard Round |
| Actuator Length | 17.45mm | 18.00mm | 15.49mm | 17.45mm |
| Operating Temperature | -30°C ~ 85°C | -30°C ~ 85°C | -30°C ~ 85°C | -30°C ~ 85°C |
| Electrical Life | 40,000 Cycles | 40,000 Cycles | 100,000 Cycles | 100,000 Cycles |
| Illumination | Non-Illuminated | Non-Illuminated | Non-Illuminated | Non-Illuminated |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
100SP1T8B13M1QEH (E-Switch): This substitute maintains identical electrical life specifications (40,000 cycles) while providing enhanced current capacity (5A versus 0.4VA) and voltage ratings (120V AC / 28V DC). The actuator length increases marginally to 18.00mm. RoHS3 compliance exceeds the original RoHS requirement. This part is suitable for applications requiring higher power handling within the same mechanical footprint and thermal operating range.
7101T2PZQE (C&K): This substitute offers extended electrical life (100,000 cycles versus 40,000 cycles) with significantly higher current and voltage ratings. The actuator configuration changes to Flat Anti-Rotation type with reduced length (15.49mm). ROHS3 compliance is provided. REACH status is affected, requiring verification for regulated substance compliance in specific jurisdictions. The mechanical actuator difference may impact user interface feel and panel integration.
7101TZQE (C&K): This substitute provides extended electrical life (100,000 cycles) with enhanced electrical ratings identical to 7101T2PZQE. The actuator type returns to Standard Round configuration with actuator length matching the original specification (17.45mm). ROHS3 compliance and affected REACH status apply. This option presents the closest mechanical compatibility profile while delivering improved durability characteristics.
All three substitutes maintain panel mount compatibility, identical panel cutout dimensions, matching bushing thread specifications, and solder lug termination. Operating temperature ranges remain consistent across all options.
Frequently Asked Questions (FAQ)
Q: Can the 34ASP18T7M1RT be directly replaced with any of these substitute parts?
A: Direct mechanical replacement is possible for all three substitutes due to identical panel cutout dimensions (11.91mm Dia), bushing thread (15/32-32), and termination style (Solder Lug). However, electrical circuit design must accommodate the higher current and voltage ratings of the substitute parts. The 7101TZQE provides the closest overall compatibility profile, including matching actuator type and length.
Q: What is the primary difference between 7101T2PZQE and 7101TZQE?
A: Both C&K parts offer identical electrical specifications and extended 100,000-cycle life. The primary difference is actuator configuration: 7101T2PZQE features a Flat Anti-Rotation actuator at 15.49mm length, while 7101TZQE uses a Standard Round actuator at 17.45mm length matching the original part. Selection depends on panel mounting space constraints and user interface requirements.
Q: Are there compliance considerations when substituting these parts?
A: The original 34ASP18T7M1RT carries RoHS Compliant status with REACH Unaffected designation. All three substitutes provide ROHS3 Compliant status, which exceeds the original requirement. However, 7101T2PZQE and 7101TZQE carry REACH Affected status, requiring verification against specific regulatory requirements in target markets or applications.
Q: What is the significance of the electrical life rating difference?
A: The original part specifies 40,000 electrical cycles. Both C&K substitutes (7101T2PZQE and 7101TZQE) extend this to 100,000 cycles, providing 2.5 times greater operational longevity. The E-Switch 100SP1T8B13M1QEH maintains the 40,000-cycle specification. Selection should consider application duty cycle requirements and expected service life.
Q: Can the 34ASP18T7M1RT be used in applications requiring 5A current capacity?
A: No. The original part is rated for 0.4VA maximum. All three substitutes provide 5A capacity and are suitable for higher-power applications. If the application requires only 0.4VA operation, the original part remains appropriate; substitution is unnecessary unless other factors such as extended electrical life or enhanced voltage ratings are required.
Q: What packaging options are available for these substitutes?
A: The original 34ASP18T7M1RT is supplied in standard packaging. Substitute parts offer varied packaging: 100SP1T8B13M1QEH is supplied in Bulk packaging, 7101T2PZQE in Tray packaging, and 7101TZQE in Bulk packaging. Packaging selection may affect procurement quantities and handling requirements.
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