GDP10 DIP Switch Equivalent & Substitute Parts

Part Overview

The GDP10 is a 10-position piano DIP switch manufactured by TE Connectivity ALCOSWITCH Switches, designed for through-hole, right-angle mounting applications. The device operates at 24VDC with a 25mA current rating and features gold-plated copper alloy contacts with a flush, recessed piano actuator. The GDP10 is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

GDP10

TE Connectivity ALCOSWITCH SwitchesIn Stock: 788GDP10 Datasheet

Current PartRFQ

194-10MST

CTS ElectrocomponentsIn Stock: 1079194-10MST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GDP10 is based on electrical and mechanical compatibility within the DIP switch category. The primary substitute identified is the CTS Electrocomponents 194-10MST, which maintains the following critical parameters:

Matching Parameters:

• Circuit configuration: SPST
• Number of positions: 10
• Voltage rating: 24VDC
• Actuator type: Piano
• Mounting type: Through Hole, Right Angle
• Pitch: 0.100" (2.54mm)
• Termination style: PC Pin
• Contact finish: Gold
• Washable design: Yes

Allowable Variations: The 194-10MST operates at 50mA current rating, which exceeds the GDP10 specification of 25mA. This represents an upward-compatible substitution, as the higher current rating accommodates applications designed for the lower 25mA specification. The 194-10MST features a raised actuator level compared to the GDP10's flush, recessed design, and operates across an extended temperature range of -40°C ~ 85°C versus -30°C ~ 85°C.

Parameter Comparison

Engineering Selection Recommendations

The CTS Electrocomponents 194-10MST serves as a direct functional substitute for the obsolete GDP10. Selection of the 194-10MST is supported by the following engineering considerations:

Product Status: The GDP10 is classified as obsolete, whereas the 194-10MST is active and currently manufactured. Active production status ensures ongoing availability and supply chain continuity.

Regulatory Compliance: The 194-10MST achieves ROHS3 compliance, whereas the GDP10 is RoHS non-compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the 194-10MST provides a compliant alternative.

Electrical Performance: The 194-10MST's 50mA current rating is upward-compatible with the GDP10's 25mA specification. The 194-10MST also provides extended electrical life of 7,000 cycles compared to the GDP10's 1,000 cycles, offering improved durability in high-cycle applications.

Mechanical Compatibility: Both devices maintain identical pitch (0.100"), termination style (PC Pin), and mounting type (Through Hole, Right Angle). Height variation of 0.008" (0.20mm) is within typical PCB layout tolerances. The raised actuator level of the 194-10MST differs from the GDP10's flush design but does not preclude functional substitution in standard applications.

Temperature Range: The 194-10MST extends the lower operating temperature limit to -40°C, providing enhanced performance in cold-environment applications.

Frequently Asked Questions (FAQ)

Q: Can the 194-10MST directly replace the GDP10 in existing designs?

A: Yes. The 194-10MST maintains electrical and mechanical compatibility across all critical parameters: SPST circuit, 10 positions, 24VDC rating, piano actuator, through-hole right-angle mounting, 0.100" pitch, and PC pin termination. The higher 50mA current rating is upward-compatible with the 25mA GDP10 specification.

Q: What is the significance of the actuator level difference (flush vs. raised)?

A: The GDP10 features a flush, recessed piano actuator, while the 194-10MST has a raised actuator. This difference affects the physical profile above the PCB by approximately 0.008" (0.20mm). In most applications, this variation is accommodated within standard PCB layout tolerances and does not impact functional performance. Mechanical clearance verification is required only in space-constrained designs.

Q: Why does the 194-10MST have a higher current rating than the GDP10?

A: The 194-10MST is rated for 50mA versus the GDP10's 25mA. This represents an upward-compatible specification, meaning the 194-10MST can safely operate in applications designed for the lower 25mA rating. The higher rating provides additional design margin and is not a limitation for substitution.

Q: What is the impact of the extended electrical life specification?

A: The 194-10MST specifies 7,000 electrical cycles compared to the GDP10's 1,000 cycles. This extended life indicates improved contact durability and is advantageous for high-cycle switching applications. It does not preclude substitution in lower-cycle applications.

Q: Are there packaging differences between these parts?

A: The GDP10 is supplied in standard packaging (not specified), while the 194-10MST is supplied in tube packaging. Tube packaging is standard for DIP switches and does not affect component functionality or performance.

Q: Does the RoHS compliance difference affect substitution?

A: The 194-10MST is ROHS3 compliant, while the GDP10 is RoHS non-compliant. For applications or markets requiring RoHS compliance, the 194-10MST is the appropriate selection. For legacy applications without RoHS requirements, both parts are functionally equivalent.

Q: What is the temperature range consideration for substitution?

A: The 194-10MST operates from -40°C ~ 85°C, extending the lower limit by 10°C compared to the GDP10's -30°C ~ 85°C range. This extended range is beneficial for cold-environment applications and does not restrict substitution in standard temperature environments.