GDB02 Equivalent & Substitute Parts

Part Overview

The GDB02 is a DIP switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole single-throw (SPST) rocker actuator switch rated for 25mA at 24VDC. This component is designed for through-hole mounting applications requiring low-current switching control with a flush, recessed actuator profile.

The GDB02 is classified as obsolete. Locating substitute components is necessary to support ongoing maintenance, repair, and new design requirements where this part is no longer available from primary distribution channels.

Key Parameters

Parameter	Value
Circuit Configuration	SPST
Number of Positions	2
Current Rating	25mA
Voltage Rating	24VDC
Mounting Type	Through Hole
Termination Style	PC Pin
Pitch	0.100" (2.54mm)
Operating Temperature Range	-30°C ~ 85°C
Washable	Yes

Substitute Part Grouping Explanation

Substitution of the GDB02 is based on the following critical parameters that must be maintained or exceeded:

Mandatory Compatibility Parameters:

Circuit configuration: SPST (single-pole single-throw)
Number of positions: 2
Voltage rating: 24VDC (minimum)
Current rating: 25mA (minimum)
Mounting type: Through hole
Termination style: PC pin
Pitch: 0.100" (2.54mm)
Contact finish: Gold
Washable capability: Yes

The substitute part 206-2ST meets all mandatory compatibility parameters. While the 206-2ST features a slide actuator (versus the rocker actuator of the GDB02) and a raised actuator level (versus flush/recessed), these represent functional design variations that do not prevent electrical or mechanical substitution in applications where the GDB02 was specified. The 206-2ST exceeds the current rating requirement (50mA versus 25mA) and provides extended electrical life (10,000 cycles versus 1,000 cycles).

Parameter Comparison

Parameter	GDB02 (Main Part)	206-2ST (Substitute)
Manufacturer	TE Connectivity ALCOSWITCH Switches	CTS Electrocomponents
Product Status	Obsolete	Active
Circuit Configuration	SPST	SPST
Number of Positions	2	2
Current Rating	25mA	50mA
Voltage Rating	24VDC	24VDC
Actuator Type	Rocker	Slide (Standard)
Actuator Level	Flush, Recessed	Raised
Contact Finish	Gold	Gold
Height Above Board	0.169" (4.30mm)	0.334" (8.48mm)
Mounting Type	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Washable	Yes	Yes
Operating Temperature Range	-30°C ~ 85°C	-55°C ~ 85°C
Electrical Life	1,000 Cycles	10,000 Cycles
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The 206-2ST is a suitable substitute for the obsolete GDB02 based on the following factors:

Electrical Compatibility: The 206-2ST maintains the same voltage rating (24VDC) and exceeds the current rating requirement (50mA versus 25mA). Both components feature gold-plated contacts and are rated for washable applications.

Mechanical Compatibility: Both components use through-hole mounting with PC pin termination at 0.100" (2.54mm) pitch, ensuring direct PCB footprint compatibility.

Product Status and Compliance: The GDB02 is obsolete and non-compliant with RoHS3 standards. The 206-2ST is an active product with ROHS3 compliance, supporting long-term supply chain continuity and regulatory alignment.

Performance Enhancement: The 206-2ST provides extended electrical life (10,000 cycles versus 1,000 cycles) and a wider operating temperature range (-55°C to 85°C versus -30°C to 85°C), offering improved reliability margins in demanding applications.

Design Consideration: The 206-2ST features a raised slide actuator (0.334" height) compared to the GDB02's flush rocker actuator (0.169" height). This dimensional difference requires verification of available panel or enclosure space during integration.

Frequently Asked Questions (FAQ)

Q: Can the 206-2ST directly replace the GDB02 without PCB modifications?

A: Yes, the 206-2ST uses the same through-hole PC pin termination and 0.100" (2.54mm) pitch as the GDB02, ensuring direct PCB footprint compatibility without trace or pad modifications.

Q: What is the primary difference between the GDB02 and 206-2ST?

A: The GDB02 features a rocker actuator with a flush, recessed profile (0.169" height), while the 206-2ST uses a slide actuator with a raised profile (0.334" height). Both are SPST 2-position switches rated for 24VDC operation.

Q: Does the 206-2ST meet the current rating requirement of the GDB02?

A: Yes. The 206-2ST is rated for 50mA, which exceeds the GDB02's 25mA requirement. This provides additional current-handling capacity for the same application.

Q: Are there any compliance differences between these components?

A: The GDB02 is RoHS non-compliant, while the 206-2ST is ROHS3 compliant. Both components are REACH unaffected. The 206-2ST is recommended for new designs requiring regulatory compliance.

Q: What is the impact of the height difference on system integration?

A: The 206-2ST's raised actuator profile (0.334" versus 0.169") requires verification of available clearance in the panel or enclosure. If space is constrained, alternative components with lower profiles may be necessary.

Q: How do the electrical life ratings compare?

A: The GDB02 is rated for 1,000 electrical cycles, while the 206-2ST is rated for 10,000 electrical cycles. The 206-2ST provides extended operational life for high-cycle applications.

Q: Are both components suitable for washable applications?

A: Yes, both the GDB02 and 206-2ST are rated as washable and feature sealed or epoxy-sealed terminals, supporting cleaning processes in manufacturing environments.

Q: What is the operating temperature range for each component?

A: The GDB02 operates from -30°C to 85°C, while the 206-2ST operates from -55°C to 85°C. The 206-2ST provides extended low-temperature performance for cold-environment applications.

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