TE Connectivity ALCOSWITCH 1571990-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1571990-5 is an active-status pushbutton switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration. This component operates at 0.4VA across 20V AC/DC ratings with momentary off function and right-angle through-hole mounting. The switch features a red round plunger actuator, process-sealed construction, and supports 80,000 electrical cycles. Substitute parts are identified when equivalent electrical ratings, circuit topology, mounting configuration, and termination style align with the original specification, enabling direct functional replacement in applications where the original part becomes unavailable or inventory constraints require alternative sourcing.

Substiute Parts

1571990-5

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8151571990-5 Datasheet

Current PartRFQ

38FSP9B7M6RT

Grayhill Inc.In Stock: 79438FSP9B7M6RT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity ALCOSWITCH 1571990-5 is determined by strict alignment of the following critical parameters:

Electrical Equivalence Requirements:

• Circuit configuration must be SPST-NO
• Current rating must be 0.4VA (AC/DC)
• Voltage rating must be 20V AC and 20V DC minimum

Mechanical Compatibility Requirements:

• Mounting type must be Through Hole, Right Angle
• Termination style must be PC Pin
• Actuator type must be Round, Plunger
• Switch function must be Off-Mom (momentary)

Environmental Compatibility Requirements:

• Operating temperature range must encompass -30°C ~ 85°C
• Moisture sensitivity level must be 1 (Unlimited)

Parts meeting all these criteria are classified as direct functional substitutes. Variations in actuator color, sealing method, electrical life cycles, or RoHS compliance status do not disqualify substitution eligibility when all primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

The Grayhill 38FSP9B7M6RT qualifies as a direct functional substitute for the TE Connectivity ALCOSWITCH 1571990-5 based on complete alignment of all critical electrical, mechanical, and environmental parameters. Both components share identical circuit topology (SPST-NO), current and voltage ratings (0.4VA at 20V AC/DC), mounting configuration (through-hole right-angle), termination style (PC pin), and operating temperature envelope (-30°C ~ 85°C).

Compliance Considerations:

The Grayhill 38FSP9B7M6RT carries ROHS3 compliance certification and REACH unaffected status, providing enhanced regulatory alignment for applications subject to European environmental directives. The TE Connectivity 1571990-5 lists RoHS status as not applicable, which may indicate legacy product classification.

Operational Differences:

The Grayhill substitute exhibits 30,000 electrical life cycles compared to the TE Connectivity original's 80,000 cycles. This reduced cycle rating should be evaluated against application duty cycle requirements. The Grayhill component features epoxy-sealed terminals versus the TE Connectivity process-sealed design, and presents a black actuator cap instead of red. These differences are cosmetic or protective in nature and do not affect electrical or mechanical substitution compatibility.

Inventory Availability:

TE Connectivity 1571990-5: 789 pieces in stock Grayhill 38FSP9B7M6RT: 714 pieces in stock

Both components maintain active product status with current availability.

Frequently Asked Questions (FAQ)

Q: Can the Grayhill 38FSP9B7M6RT directly replace the TE Connectivity 1571990-5 in existing circuit designs?

A: Yes. Both components meet identical electrical specifications (0.4VA, 20V AC/DC, SPST-NO), mechanical mounting requirements (through-hole right-angle with PC pin termination), and environmental operating parameters (-30°C ~ 85°C). Direct substitution is supported without circuit modification.

Q: Does the difference in electrical life cycles (80,000 vs. 30,000) affect substitution suitability?

A: Electrical life cycle difference is a performance characteristic that must be evaluated against application requirements. If the application duty cycle demands 80,000+ cycles, the Grayhill substitute's 30,000-cycle rating may not meet longevity expectations. If application duty cycles remain below 30,000 cycles, the substitute is suitable.

Q: Why do the actuator colors differ between the original and substitute?

A: Actuator color is a visual identification feature that does not affect electrical or mechanical function. The red actuator on the TE Connectivity original and black actuator on the Grayhill substitute are cosmetic variations. Color selection should be based on application panel design or operator interface requirements.

Q: What is the significance of the sealing method difference (Process Sealed vs. Epoxy Sealed Terminals)?

A: Both sealing methods provide environmental protection appropriate for the MSL 1 (Unlimited) moisture sensitivity classification. Process sealing and epoxy sealing represent different manufacturing approaches to terminal protection. Both are suitable for the specified operating temperature and humidity environment.

Q: Does the Grayhill component's ROHS3 compliance affect compatibility?

A: ROHS3 compliance is a regulatory certification indicating the component meets European environmental standards. This does not affect electrical or mechanical compatibility. If the application or end-market requires ROHS compliance, the Grayhill 38FSP9B7M6RT provides enhanced regulatory alignment compared to the TE Connectivity original.

Q: Are there any packaging differences between these components?

A: The TE Connectivity 1571990-5 is packaged in standard format (packaging designation not specified). The Grayhill 38FSP9B7M6RT is supplied in bulk packaging. Bulk packaging typically indicates loose component supply without individual packaging, which may affect handling and storage procedures but does not alter component function or compatibility.

Q: Can both components be used interchangeably in the same application?

A: Yes, provided the application duty cycle does not exceed 30,000 electrical cycles. Both components support identical circuit operation, voltage/current ratings, mounting configuration, and temperature range. Component selection should prioritize the Grayhill substitute only if electrical life cycle requirements align with the 30,000-cycle specification.