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ED S AC 1 Equivalent & Substitute Parts
Part Overview
The ED S AC 1 is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.1A at 100VAC/DC. This through-hole mounted switch features a snap dome actuator with top actuation and is fully sealed to IP67 specifications. The part is currently listed as obsolete, making identification of compatible substitute components essential for ongoing design support, maintenance, and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | ED S AC 1 |
| Manufacturer | C&K |
| Series | ED |
| Circuit Configuration | SPST-NO |
| Contact Rating | 0.1A @ 100VAC/DC |
| Actuator Type | Snap Dome |
| Mounting Type | Through Hole |
| Actuator Height off PCB | 1.20mm |
| Operating Force | 240gf |
| Ingress Protection | IP67 - Dust Tight, Waterproof |
| Operating Temperature Range | -25°C ~ 70°C |
| Switch Travel | 0.30mm |
| Mechanical Life | 1,000,000 Cycles |
| Termination Style | PC Pin |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the ED S AC 1 is determined by strict equivalence across the following critical parameters:
- Circuit configuration (SPST-NO)
- Contact rating (0.1A @ 100VAC/DC)
- Actuator type (Snap Dome)
- Mounting type (Through Hole)
- Actuator height off PCB (1.20mm)
- Operating force (240gf)
- Ingress protection rating (IP67)
- Operating temperature range (-25°C ~ 70°C)
- Switch travel (0.30mm)
- Mechanical life (1,000,000 Cycles)
- Termination style (PC Pin)
The EDSAC1LFS meets all these parameters and is classified as an active product within the same ED series, making it a direct functional equivalent.
Parameter Comparison
| Parameter | ED S AC 1 | EDSAC1LFS | Match |
|---|---|---|---|
| Manufacturer | C&K | C&K | ✓ |
| Series | ED | ED | ✓ |
| Circuit Configuration | SPST-NO | SPST-NO | ✓ |
| Switch Function | Off-Mom | Off-Mom | ✓ |
| Contact Rating | 0.1A @ 100VAC/DC | 0.1A @ 100VAC/DC | ✓ |
| Actuator Type | Snap Dome | Snap Dome | ✓ |
| Mounting Type | Through Hole | Through Hole | ✓ |
| Actuator Height off PCB | 1.20mm | 1.20mm | ✓ |
| Actuator Orientation | Top Actuated | Top Actuated | ✓ |
| Termination Style | PC Pin | PC Pin | ✓ |
| Operating Force | 240gf | 240gf | ✓ |
| Ingress Protection | IP67 | IP67 | ✓ |
| Operating Temperature | -25°C ~ 70°C | -25°C ~ 70°C | ✓ |
| Switch Travel | 0.30mm | 0.30mm | ✓ |
| Mechanical Life | 1,000,000 Cycles | 1,000,000 Cycles | ✓ |
| Product Status | Obsolete | Active | Substitute is active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | Substitute is compliant |
| Packaging | - | Tray | Substitute in Tray |
Engineering Selection Recommendations
The EDSAC1LFS is the direct substitute for the obsolete ED S AC 1. All electrical and mechanical parameters are identical, ensuring functional compatibility in existing circuit designs and PCB layouts. The EDSAC1LFS offers the additional advantage of active product status, meaning it is currently manufactured and available through standard distribution channels.
From a compliance perspective, the EDSAC1LFS achieves ROHS3 compliance, whereas the ED S AC 1 is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations. Both parts maintain REACH Unaffected status and carry the same ECCN and HTSUS classifications.
The EDSAC1LFS is supplied in Tray packaging, which differs from the ED S AC 1 packaging specification. Packaging format does not affect electrical or mechanical performance and is primarily a logistics consideration for procurement and assembly operations.
Frequently Asked Questions (FAQ)
Q: Can the EDSAC1LFS be used as a direct replacement for the ED S AC 1 in existing designs?
A: Yes. The EDSAC1LFS is electrically and mechanically identical to the ED S AC 1 across all functional parameters, including circuit configuration, contact rating, actuator specifications, and environmental ratings. No design modifications are required.
Q: What is the primary reason for substitution?
A: The ED S AC 1 is obsolete. The EDSAC1LFS is an active product from the same manufacturer and series, ensuring continued availability and supply chain reliability.
Q: Does the packaging difference between ED S AC 1 and EDSAC1LFS affect compatibility?
A: No. Packaging format (Tray for EDSAC1LFS) is a supply and handling specification only. It does not affect electrical performance, mechanical fit, or PCB assembly compatibility.
Q: Are there compliance differences between these parts?
A: Yes. The EDSAC1LFS is ROHS3 compliant, while the ED S AC 1 is RoHS non-compliant. Both maintain REACH Unaffected status. For applications requiring RoHS compliance, the EDSAC1LFS is the appropriate selection.
Q: What are the key parameters that define substitution eligibility?
A: Substitution is based on equivalence in circuit configuration (SPST-NO), contact rating (0.1A @ 100VAC/DC), actuator type and height (Snap Dome, 1.20mm), operating force (240gf), ingress protection (IP67), operating temperature range (-25°C ~ 70°C), switch travel (0.30mm), mechanical life (1,000,000 Cycles), and termination style (PC Pin).
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