TE Connectivity ALCOSWITCH 3-435640-7 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 3-435640-7 is a 6-position DIP switch with rocker actuator, rated for 60mA at 5VDC, designed for through-hole mounting in PCB applications. This SPST (Single Pole Single Throw) switch features a sealed design with gold-plated copper alloy contacts and operates across an extended temperature range of -55°C to 105°C. The part is currently active in production with 893 pieces available in bulk packaging. Equivalent and substitute parts are identified for applications requiring alternative packaging formats, different position counts, or compliance with specific regulatory standards.

Substiute Parts

3-435640-7

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9363-435640-7 Datasheet

Current PartRFQ

3-5435640-7

TE Connectivity ALCOSWITCH SwitchesIn Stock: 40443-5435640-7 Datasheet

DirectRFQ

5435640-6

TE Connectivity ALCOSWITCH SwitchesIn Stock: 32925435640-6 Datasheet

SimilarRFQ

208-6

CTS ElectrocomponentsIn Stock: 3348208-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3-435640-7 are classified based on electrical compatibility and mechanical interchangeability within the TE Connectivity ALCOSWITCH 7100 series and cross-manufacturer alternatives. Substitution eligibility is determined by the following key parameters:

Primary Substitution Criteria:

• Circuit configuration (SPST)
• Number of positions (6 positions for direct equivalents)
• Current rating (60mA minimum)
• Voltage rating (5VDC for primary equivalents)
• Mounting type (Through Hole)
• Termination style (PC Pin)
• Pitch spacing (0.100" / 2.54mm)

Direct Equivalent: Part 3-5435640-7 maintains identical electrical and mechanical specifications with the primary difference being packaging format (tube versus bulk) and improved RoHS3 compliance status.

Similar Substitute: Part 5435640-6 shares the same series, circuit, current rating, voltage rating, and mounting characteristics but differs in position count (9 positions versus 6 positions) and physical dimensions, suitable for applications requiring expanded switching capability within the same footprint class.

Cross-Manufacturer Alternative: Part CTS 208-6 provides functional equivalence as a 6-position SPST DIP switch with through-hole mounting and identical pitch spacing. This part operates at 24VDC with 50mA current rating and slide actuator configuration, applicable to different voltage domain applications.

Parameter Comparison

Engineering Selection Recommendations

3-5435640-7 (Direct Equivalent - Recommended for RoHS3 Compliance): This part is the preferred direct substitute for the 3-435640-7 when RoHS3 compliance is required. It maintains identical electrical specifications (60mA at 5VDC), mechanical configuration (6-position rocker actuator), and physical dimensions. The primary distinction is packaging format (tube instead of bulk) and RoHS3 compliance status. This part is suitable for new designs requiring regulatory compliance and is currently in active production with higher inventory availability (4,001 pieces).

5435640-6 (Similar Substitute - Position Count Variation): This part is applicable when a 9-position DIP switch configuration is required within the same voltage and current specifications. It maintains the TE Connectivity ALCOSWITCH 7100 series lineage with identical electrical ratings and mounting characteristics. The part is RoHS3 compliant but carries a Last Time Buy product status, indicating limited future availability. Physical length increases to 0.980" (24.89mm) to accommodate the additional positions. This substitute is suitable for applications requiring expanded switching capability without redesign of the mounting footprint.

208-6 (Cross-Manufacturer Alternative - Voltage Domain Variation): The CTS Electrocomponents 208-6 provides functional equivalence for applications operating in 24VDC voltage domains. This part maintains 6-position SPST configuration, through-hole mounting, and identical pitch spacing. Key differences include slide actuator type (versus rocker), 50mA current rating (versus 60mA), tin contact finish (versus gold), and reduced operating temperature range (-55°C to 85°C versus -55°C to 105°C). This substitute is suitable for 24VDC applications where the reduced current rating and temperature range are acceptable. The part is RoHS3 compliant and currently in active production.

Frequently Asked Questions (FAQ)

Q: Can the 3-5435640-7 be used as a direct replacement for the 3-435640-7 in existing designs?

A: Yes. The 3-5435640-7 is a direct electrical and mechanical equivalent with identical specifications for circuit configuration, position count, current rating, voltage rating, actuator type, and mounting dimensions. The only differences are packaging format (tube versus bulk) and improved RoHS3 compliance status. No circuit redesign is required.

Q: What is the primary reason to select the 5435640-6 over the 3-435640-7?

A: The 5435640-6 is selected when a 9-position DIP switch is required instead of 6 positions, while maintaining the same voltage (5VDC), current (60mA), and series characteristics. The increased length (0.980" versus 0.680") accommodates the additional switching positions. This part is suitable for applications requiring expanded switching capability within the same electrical domain.

Q: Is the CTS 208-6 compatible with 5VDC applications?

A: No. The CTS 208-6 is rated for 24VDC operation and is not suitable for 5VDC applications. This part is a cross-manufacturer alternative for designs operating in 24VDC voltage domains. Using this part in a 5VDC circuit would result in improper switch operation and potential circuit failure.

Q: What are the packaging differences between the main part and its direct equivalent?

A: The 3-435640-7 is supplied in bulk packaging, while the 3-5435640-7 is supplied in tube packaging. Bulk packaging is typically used for high-volume procurement, while tube packaging is standard for component distribution and smaller quantity orders. Both parts are identical in electrical and mechanical specifications.

Q: Why is the 5435640-6 marked as Last Time Buy?

A: Last Time Buy status indicates that the manufacturer has announced the end of production for this part. While currently available in inventory (3,265 pieces), future availability is limited. For new designs, the 3-5435640-7 or 3-435640-7 are recommended for long-term supply assurance.

Q: What is the difference in actuator type between the main part and the CTS 208-6?

A: The 3-435640-7 features a rocker actuator, which is toggled by pressing either end of the actuator lever. The CTS 208-6 features a slide actuator, which is operated by sliding the actuator horizontally. These are different mechanical interfaces and may affect user interaction and PCB layout considerations.

Q: Are all substitute parts RoHS3 compliant?

A: The 3-435640-7 (main part) is RoHS non-compliant. The 3-5435640-7 and 5435640-6 are RoHS3 compliant. The CTS 208-6 is also RoHS3 compliant. For applications requiring RoHS3 compliance, the 3-5435640-7 is the recommended direct substitute.

Q: What is the operating temperature limitation of the CTS 208-6 compared to the main part?

A: The 3-435640-7 operates across -55°C to 105°C, while the CTS 208-6 operates across -55°C to 85°C. The CTS part has a reduced upper temperature limit of 20°C. Applications requiring operation above 85°C must use the TE Connectivity parts.

Q: Can the 50mA current rating of the CTS 208-6 be used in place of the 60mA rating of the main part?

A: The CTS 208-6 with 50mA rating is suitable only for applications where the actual circuit current does not exceed 50mA. If the circuit requires 60mA operation, the CTS part is not appropriate. The TE Connectivity parts with 60mA rating must be used for higher current applications.

Q: What is the contact finish difference between the main part and the CTS 208-6?

A: The 3-435640-7 features gold-plated contacts, while the CTS 208-6 features tin-plated contacts. Gold plating provides superior corrosion resistance and contact reliability in demanding environments. Tin plating is suitable for standard industrial applications with lower corrosion exposure.