TE Connectivity ALCOSWITCH 1571733-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1571733-1 is a pushbutton switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration, rated for 0.4VA at 20V AC/DC. This surface mount, right angle component features a round plunger actuator with process sealed construction and operates across a temperature range of -30°C to 85°C with an electrical life of 80,000 cycles.

The 1571733-1 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for applications utilizing this switch configuration.

Substiute Parts

1571733-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10051571733-1 Datasheet

Current PartRFQ

TSPD11FGPCV0

TE Connectivity ALCOSWITCH SwitchesIn Stock: 818TSPD11FGPCV0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1571733-1 is based on electrical and mechanical compatibility within the TE Connectivity TSP series. The primary substitute identified is the TSPD11FGPCV0, which shares the following critical parameters with the main part:

Matching Parameters:

• Manufacturer: TE Connectivity ALCOSWITCH Switches
• Series: TSP
• Current Rating: 0.4VA (AC/DC)
• Voltage Rating - AC: 20V
• Voltage Rating - DC: 20V
• Actuator Type: Round, Plunger
• Actuator Color: Black
• Operating Temperature Range: -30°C to 85°C
• Features: Process Sealed
• ECCN Classification: EAR99
• HTSUS Code: 8536.50.9031

Differing Parameters:

• Circuit Configuration: SPDT (vs. SPST-NO in main part)
• Switch Function: On-Mom (vs. Off-Mom in main part)
• Mounting Type: Through Hole (vs. Surface Mount, Right Angle in main part)
• Termination Style: PC Pin (vs. Gull Wing in main part)
• Electrical Life: 60,000 Cycles (vs. 80,000 Cycles in main part)
• Product Status: Active (vs. Obsolete in main part)

The TSPD11FGPCV0 operates within identical electrical parameters and temperature specifications, ensuring functional compatibility for applications where circuit configuration and mounting type modifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The TSPD11FGPCV0 is the identified substitute for the obsolete 1571733-1. Selection of this substitute requires evaluation of the following factors:

Product Status Consideration: The 1571733-1 is obsolete, while the TSPD11FGPCV0 maintains active product status with TE Connectivity, ensuring ongoing availability and manufacturing support.

Electrical Compatibility: Both components operate at identical voltage ratings (20V AC/DC) and current capacity (0.4VA), permitting direct electrical substitution in circuits designed for these specifications.

Temperature Performance: Both parts function across the identical operating temperature range of -30°C to 85°C, maintaining thermal compatibility in equivalent environmental conditions.

Compliance Status: The 1571733-1 is ROHS3 compliant. The TSPD11FGPCV0 RoHS status is listed as not applicable. Both components carry EAR99 ECCN classification and identical HTSUS codes (8536.50.9031).

Circuit Configuration Differences: The main part features SPST-NO configuration with Off-Mom function, while the substitute provides SPDT configuration with On-Mom function. Applications requiring single-pole switching must evaluate whether the additional pole and alternate switching function accommodate circuit requirements.

Mounting and Termination Differences: The main part uses surface mount right angle construction with gull wing termination, while the substitute employs through hole mounting with PC pin termination. PCB layout and assembly process modifications are necessary to accommodate this change.

Electrical Life Rating: The main part specifies 80,000 cycles electrical life, while the substitute provides 60,000 cycles. Applications with high cycle count requirements must assess whether the reduced rating meets operational demands.

Frequently Asked Questions (FAQ)

Q: Can the TSPD11FGPCV0 directly replace the 1571733-1 without circuit modifications?

A: Electrical substitution is possible due to matching voltage and current ratings. However, circuit modifications are required because the TSPD11FGPCV0 provides SPDT configuration with On-Mom function, whereas the 1571733-1 provides SPST-NO configuration with Off-Mom function. The additional pole and alternate switching behavior necessitate circuit redesign.

Q: What are the primary differences between these two components?

A: The main differences are circuit configuration (SPST-NO vs. SPDT), switch function (Off-Mom vs. On-Mom), mounting type (surface mount right angle vs. through hole), termination style (gull wing vs. PC pin), and electrical life rating (80,000 vs. 60,000 cycles). Voltage, current, temperature range, and actuator specifications remain identical.

Q: Does the TSPD11FGPCV0 require PCB layout changes?

A: Yes. The transition from surface mount right angle with gull wing termination to through hole with PC pin termination requires PCB redesign. Hole placement, pad configuration, and assembly process modifications are necessary.

Q: Is the TSPD11FGPCV0 suitable for applications requiring 80,000+ cycle electrical life?

A: The TSPD11FGPCV0 is rated for 60,000 electrical cycles. Applications requiring 80,000 or more cycles must evaluate whether this reduced rating meets operational requirements or if alternative components should be considered.

Q: Are both components RoHS compliant?

A: The 1571733-1 is ROHS3 compliant. The TSPD11FGPCV0 RoHS status is listed as not applicable. Compliance requirements for specific applications must be verified against applicable regulations.

Q: What is the availability status of each component?

A: The 1571733-1 is obsolete with 939 pieces in current inventory. The TSPD11FGPCV0 is active with 724 pieces in current inventory, providing ongoing manufacturing support and long-term availability.

Q: Can the TSPD11FGPCV0 be used in the same application without functional changes?

A: Functional equivalence depends on application requirements. The SPDT configuration provides an additional pole not present in the SPST-NO main part, and the On-Mom function differs from the Off-Mom function. Applications must be evaluated to determine whether these differences are compatible with intended operation.