ADE03S Equivalent & Substitute Parts

Part Overview

The ADE03S is a surface mount DIP slide switch manufactured by TE Connectivity ALCOSWITCH Switches. This component is a single-pole single-throw (SPST) switch rated for 100mA at 24VDC with three switch positions and a standard slide actuator. The ADE03S is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Active alternatives are available that maintain functional compatibility while offering improved compliance status and availability.

Substiute Parts

ADE03S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1093ADE03S Datasheet

Current PartRFQ

1825058-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8701825058-4 Datasheet

DirectRFQ

219-3MST

CTS ElectrocomponentsIn Stock: 11070219-3MST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADE03S is determined by strict equivalence across the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPST)
• Number of positions (3)
• Current rating (100mA minimum)
• Voltage rating (24VDC or higher)
• Actuator type (Slide Standard)
• Mounting type (Surface Mount)
• Termination style (Gull Wing)
• Pitch spacing (0.100" / 2.54mm)
• Moisture sensitivity level (MSL 1)

Substitute parts are grouped into two categories:

1. Direct Equivalent (1825058-4): Maintains identical electrical ratings, mechanical configuration, and physical dimensions. Differs only in product status (Active vs. Obsolete) and compliance certifications.

2. Functional Equivalent (219-3MST): Maintains SPST circuit, 3-position configuration, 100mA current rating, and surface mount gull wing termination. Operates at 20VDC (lower than 24VDC requirement) and includes enhanced electrical life specification. Physical dimensions and contact material differ slightly.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred):

The 1825058-4 is the primary substitute for the obsolete ADE03S. This part maintains identical electrical specifications (100mA at 24VDC), mechanical configuration (3-position SPST slide switch), and physical dimensions. The 1825058-4 is classified as Active with ROHS3 compliance, providing improved regulatory status and long-term availability. The height above board differs by 0.002" (0.05mm), which is within typical PCB design tolerances. This part is suitable for direct substitution in existing designs without circuit modification.

For Functional Substitution (Alternative):

The 219-3MST from CTS Electrocomponents provides functional equivalence with the following considerations: The voltage rating is 20VDC, which is lower than the ADE03S 24VDC specification. This part is suitable only for applications where the actual operating voltage does not exceed 20VDC. The 219-3MST offers extended electrical life (2,000 cycles versus 1,000 cycles) and a wider operating temperature range (-55°C to 85°C). The height above board is 0.170" (4.33mm), approximately 0.05mm lower than the ADE03S, which may require PCB layout verification. This part includes epoxy sealed terminals and tape seal features. The 219-3MST is ROHS3 compliant and REACH unaffected.

Compliance Considerations:

Both substitute parts are ROHS3 compliant, addressing the non-compliance status of the obsolete ADE03S. The 1825058-4 is REACH affected, while the 219-3MST is REACH unaffected. Selection should account for supply chain and regulatory requirements specific to the application region.

Frequently Asked Questions (FAQ)

Q: Can the 1825058-4 be used as a direct replacement for the ADE03S without PCB modifications?

A: Yes. The 1825058-4 maintains identical electrical ratings (100mA at 24VDC), circuit configuration (SPST 3-position), and physical dimensions (0.378" length, 0.100" pitch). The height above board differs by 0.002" (0.05mm), which is within standard PCB design tolerances and does not require layout changes.

Q: Is the 219-3MST suitable for applications requiring 24VDC operation?

A: No. The 219-3MST is rated for 20VDC maximum. This part is suitable only for applications where the actual operating voltage does not exceed 20VDC. For 24VDC applications, the 1825058-4 is the appropriate substitute.

Q: What are the key differences between the ADE03S and 219-3MST?

A: The primary differences are voltage rating (24VDC versus 20VDC), contact material (copper alloy versus beryllium copper), height above board (0.219" versus 0.170"), electrical life (1,000 versus 2,000 cycles), and operating temperature range (-30°C to 85°C versus -55°C to 85°C). Both maintain SPST 3-position configuration, 100mA current rating, and surface mount gull wing termination.

Q: Does packaging differ between the substitute parts?

A: Yes. The ADE03S is supplied in bulk packaging, while both 1825058-4 and 219-3MST are supplied in tube packaging. Tube packaging provides improved component protection and handling during assembly operations.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 1825058-4 and 219-3MST are ROHS3 compliant. The original ADE03S is RoHS non-compliant. Substitution with either part addresses RoHS compliance requirements.

Q: What is the mechanical life specification for the 219-3MST?

A: The mechanical life specification for the 219-3MST is not provided in the available technical data. The ADE03S and 1825058-4 both specify 1,000 mechanical cycles. The 219-3MST specifies 2,000 electrical cycles.

Q: Can the 1825058-4 and 219-3MST be used interchangeably in the same application?

A: Interchangeability depends on the application voltage requirement. If the application operates at 24VDC, only the 1825058-4 is suitable. If the application operates at 20VDC or lower, both parts are functionally compatible, though physical dimensions and contact materials differ slightly.