TE Connectivity ALCOSWITCH 1571217-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1571217-3 is an active SPST-NO tactile switch designed for surface mount applications. This component features a 0.05A contact rating at 24VDC, top-actuated plunger design, and sealed construction rated IP67. The switch is manufactured in cut tape packaging with 2,176 pieces currently in stock. Substitute parts are identified to address application requirements where voltage ratings, operating force, mechanical life, or packaging formats differ from the original specification.

Substiute Parts

1571217-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 22761571217-3 Datasheet

Current PartRFQ

TL3300AF160Q

E-SwitchIn Stock: 20925TL3300AF160Q Datasheet

SimilarRFQ

TL3300AF260Q

E-SwitchIn Stock: 22339TL3300AF260Q Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1571217-3 are identified based on electrical and mechanical compatibility within the tactile switch category. The primary substitution criteria are:

Electrical Compatibility: All substitute parts maintain the SPST-NO circuit configuration and 0.05A contact rating. However, substitute parts operate at 12VDC rather than 24VDC, requiring voltage compatibility verification in the target application.

Mechanical Compatibility: All substitute parts share identical actuator height (7.30mm), actuator orientation (top actuated), termination style (gull wing), and outline dimensions (12.00mm x 12.00mm). Switch travel remains constant at 0.35mm across all parts.

Operating Force Variation: The E-Switch TL3300AF160Q maintains the 160gf operating force of the original part. The E-Switch TL3300AF260Q features an increased 260gf operating force, suitable for applications requiring higher actuation resistance.

Mechanical Life Differences: The original part provides 1,000,000 cycles. Substitute parts offer reduced mechanical life ratings (200,000 cycles for TL3300AF160Q and 100,000 cycles for TL3300AF260Q), which must be evaluated against application duty cycle requirements.

Environmental Ratings: The original part includes IP67 ingress protection and operates across -35°C to 85°C. Substitute parts lack specified ingress protection ratings and operate within a narrower temperature range (-25°C to 70°C).

Packaging Format: The original part is supplied in cut tape (CT) format. Substitute parts are supplied in tape and reel (TR) format, affecting procurement and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitution (TL3300AF160Q): The E-Switch TL3300AF160Q provides the closest functional match to the 1571217-3 with identical operating force (160gf) and mechanical life rated at 200,000 cycles. This part is suitable for applications where the 12VDC operating voltage is compatible with system requirements and mechanical life requirements do not exceed 200,000 cycles. Both parts maintain ROHS3 compliance and MSL 1 rating. The narrower operating temperature range (-25°C to 70°C) must be verified against application environmental specifications.

Alternative Substitution (TL3300AF260Q): The E-Switch TL3300AF260Q is applicable where increased actuator resistance (260gf) is required. This part operates at 12VDC and provides 100,000 cycles of mechanical life. Selection of this part requires confirmation that the application duty cycle does not exceed 100,000 cycles and that the higher operating force is functionally compatible with the user interface design.

Compliance Status: All parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating, supporting use in standard manufacturing and storage environments.

Voltage Consideration: The critical distinction between the original part and substitute parts is the voltage rating differential (24VDC versus 12VDC). Applications operating at 24VDC require the original 1571217-3 part. Applications operating at 12VDC or lower may utilize the E-Switch alternatives.

Frequently Asked Questions (FAQ)

Q: Can the TL3300AF160Q or TL3300AF260Q be used as direct replacements for the 1571217-3 in a 24VDC circuit?

A: No. The substitute parts are rated for 12VDC operation. Using them in a 24VDC circuit exceeds the contact rating and creates a reliability risk. The original 1571217-3 must be used for 24VDC applications.

Q: What is the primary difference between the TL3300AF160Q and TL3300AF260Q?

A: The TL3300AF160Q maintains 160gf operating force and 200,000 cycle mechanical life. The TL3300AF260Q features 260gf operating force and 100,000 cycle mechanical life. Operating force selection depends on the required user actuation resistance. Mechanical life selection depends on the application duty cycle.

Q: Are the substitute parts mechanically compatible with the original part's PCB footprint?

A: Yes. Both substitute parts share identical actuator height (7.30mm), outline dimensions (12.00mm x 12.00mm), termination style (gull wing), and switch travel (0.35mm). PCB footprints are compatible.

Q: What is the impact of the packaging format difference (cut tape versus tape and reel)?

A: Cut tape (CT) packaging is suitable for manual assembly and small-volume production. Tape and reel (TR) packaging is optimized for automated pick-and-place assembly and high-volume production. The packaging format does not affect component functionality but influences procurement and assembly process compatibility.

Q: Does the narrower operating temperature range of the substitute parts affect compatibility?

A: The substitute parts operate from -25°C to 70°C, compared to the original part's -35°C to 85°C range. Applications requiring operation below -25°C or above 70°C must use the original 1571217-3 part.

Q: Are all parts RoHS compliant?

A: Yes. The original 1571217-3 and both substitute parts (TL3300AF160Q and TL3300AF260Q) are ROHS3 compliant and REACH unaffected, supporting use in regulated manufacturing environments.

Q: What mechanical life rating should be selected for my application?

A: Mechanical life selection depends on the application duty cycle. The original part provides 1,000,000 cycles. The TL3300AF160Q provides 200,000 cycles. The TL3300AF260Q provides 100,000 cycles. Select a part with mechanical life rating equal to or exceeding the expected number of actuations over the product lifetime.