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GLDC01K8B Snap Action Switch - Equivalent & Substitute Parts
Part Overview
The GLDC01K8B is a snap action switch manufactured by Honeywell Sensing and Productivity Solutions, classified as a Single Pole Double Throw (SPDT) chassis mount switch with a spring and cat whisker actuator. This component is rated for 6A AC at 120V and 550mA DC at 125V, featuring IP67 ingress protection and screw terminal connections.
The GLDC01K8B carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing maintenance and production requirements for systems utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Honeywell Sensing and Productivity Solutions |
| Series | GLS |
| Circuit Configuration | SPDT (Single Pole Double Throw) |
| Switch Function | On-Momentary |
| Current Rating (AC) | 6A |
| Current Rating (DC) | 550mA |
| Voltage Rating (AC) | 120V |
| Voltage Rating (DC) | 125V |
| Actuator Type | Spring, Cat Whisker |
| Mounting Type | Chassis Mount |
| Termination Style | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof |
| Operating Force | 132gf |
| Operating Position | 16° |
| Pretravel | 16° |
| Differential Travel | 10° |
| Operating Temperature Range | -25°C to 85°C |
| Mechanical Life | 5,000,000 Cycles |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | MSL 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the GLDC01K8B is based on strict electrical and mechanical parameter matching within the Honeywell GLS series. The following parameters define substitution eligibility:
Critical Matching Parameters:
- Circuit configuration: SPDT
- Switch function: On-Momentary
- Current rating: 6A AC / 550mA DC
- Voltage rating: 120V AC / 125V DC
- Actuator type: Spring, Cat Whisker
- Mounting type: Chassis Mount
- Termination style: Screw Terminal
- Operating force: 132gf
- Operating position: 16°
- Pretravel: 16°
- Differential travel: 10°
- Operating temperature range: -25°C to 85°C
- Mechanical life: 5,000,000 Cycles
The GLCA01K8A qualifies as a direct substitute based on identical electrical ratings, mechanical specifications, actuator characteristics, and mounting configuration. The primary distinction is the ingress protection rating and product status.
Parameter Comparison
| Parameter | GLDC01K8B (Main Part) | GLCA01K8A (Substitute) |
|---|---|---|
| Manufacturer | Honeywell Sensing and Productivity Solutions | Honeywell Sensing and Productivity Solutions |
| Series | GLS | GLS |
| Product Status | Obsolete | Active |
| Circuit Configuration | SPDT | SPDT |
| Switch Function | On-Momentary | On-Momentary |
| Current Rating (AC) | 6A | 6A |
| Current Rating (DC) | 550mA | 550mA |
| Voltage Rating (AC) | 120V | 120V |
| Voltage Rating (DC) | 125V | 125V |
| Actuator Type | Spring, Cat Whisker | Spring, Cat Whisker |
| Mounting Type | Chassis Mount | Chassis Mount |
| Termination Style | Screw Terminal | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof | IP66 - Dust Tight, Water Resistant |
| Operating Force | 132gf | 132gf |
| Operating Position | 16° | 16° |
| Pretravel | 16° | 16° |
| Differential Travel | 10° | 10° |
| Operating Temperature Range | -25°C to 85°C | -25°C to 85°C |
| Mechanical Life | 5,000,000 Cycles | 5,000,000 Cycles |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | MSL 1 (Unlimited) |
| Packaging | Standard | Bulk |
Engineering Selection Recommendations
The GLCA01K8A is the qualified substitute for the obsolete GLDC01K8B based on the following engineering criteria:
Product Status Consideration: The GLDC01K8B is classified as Obsolete, while the GLCA01K8A maintains Active product status with current manufacturing support and availability. This status difference is the primary driver for substitution.
Electrical and Mechanical Compatibility: Both components share identical electrical ratings (6A AC at 120V, 550mA DC at 125V), circuit configuration (SPDT), switch function (On-Momentary), and mechanical specifications (132gf operating force, 16° operating position, 5,000,000 cycle mechanical life).
Compliance and Certification: Both parts are RoHS Compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental and regulatory compliance.
Ingress Protection Difference: The GLCA01K8A provides IP66 (Dust Tight, Water Resistant) protection compared to the GLDC01K8B's IP67 (Dust Tight, Waterproof) rating. This represents a minor reduction in environmental sealing capability. Applications requiring full IP67 waterproof performance should evaluate this difference against specific operational requirements.
Availability: The GLCA01K8A is available in current inventory with Active product status, ensuring long-term supply chain continuity.
Frequently Asked Questions (FAQ)
Q: Can the GLCA01K8A directly replace the GLDC01K8B in existing designs?
A: Yes. The GLCA01K8A provides identical electrical ratings, circuit configuration, switch function, actuator type, mounting configuration, and mechanical specifications. Both components are screw terminal chassis mount SPDT switches rated for 6A AC at 120V and 550mA DC at 125V with 5,000,000 cycle mechanical life.
Q: What is the difference between IP67 and IP66 ingress protection ratings?
A: IP67 provides complete dust tightness and waterproof protection (temporary immersion up to 1 meter). IP66 provides complete dust tightness and water resistance (high-pressure water jets). For applications involving temporary immersion or submersion, the IP67 rating of the GLDC01K8B provides enhanced protection. For standard industrial environments with water spray exposure, IP66 is typically sufficient.
Q: Are there packaging differences between these parts?
A: The GLDC01K8B uses standard packaging, while the GLCA01K8A is supplied in Bulk packaging. Bulk packaging is suitable for high-volume production and assembly operations. Standard packaging may be required for specific procurement or inventory management protocols.
Q: Do both parts meet RoHS compliance requirements?
A: Yes. Both the GLDC01K8B and GLCA01K8A are RoHS Compliant, meeting EU Directive 2011/65/EU requirements for restricted hazardous substances.
Q: What is the operating temperature range for these switches?
A: Both components operate across the identical temperature range of -25°C to 85°C, ensuring thermal compatibility in equivalent applications.
Q: Are there any differences in mechanical life or reliability between these parts?
A: No. Both components specify 5,000,000 cycle mechanical life with identical operating force (132gf), operating position (16°), pretravel (16°), and differential travel (10°) characteristics.
Q: Why is the GLDC01K8B listed as Obsolete?
A: The GLDC01K8B carries Obsolete product status, indicating it is no longer in active production. The GLCA01K8A represents the current Active equivalent within the Honeywell GLS series, ensuring ongoing manufacturing support and supply availability.
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