RTT8705 Equivalent & Substitute Parts

Part Overview

The RTT8705 is a 4.39mm (0.173") Phone Jack, Twin Stereo connector manufactured by Switchcraft Inc. This barrel connector features a 3-conductor TRS (Tip-Ring-Sleeve) configuration with right-angle solder termination, designed for twin stereo applications requiring dual independent audio channels. The part is currently in active production with 745 units available in new original stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design specifications permit alternative configurations.

Substiute Parts

RTT8705

Switchcraft Inc.In Stock: 847RTT8705 Datasheet

Current PartRFQ

RTT8705X

Switchcraft Inc.In Stock: 1172RTT8705X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RTT8705 are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

• Connector Type & Configuration: Phone Jack, Twin stereo configuration with 3-conductor TRS signal architecture
• Mating Diameter: 4.39mm (0.173") industry standard, with actual diameter tolerance of 0.177" (4.48mm)
• Contact Count & Arrangement: 2 sets of 3 conductors totaling 10 contacts with dual internal switches
• Mounting & Termination: Through-hole, right-angle orientation with solder termination
• Environmental Compliance: ROHS3 compliance, REACH unaffected status, and MSL Level 1 rating
• Operating Temperature: -55°C to 85°C operational range
• Contact Material Specifications: Gold-plated copper alloy contacts

Parts meeting all these parameters are classified as direct equivalents and may be substituted without design modification.

Parameter Comparison

Engineering Selection Recommendations

The RTT8705X is classified as a direct equivalent substitute for the RTT8705 based on matching electrical and mechanical specifications. Both parts are manufactured by Switchcraft Inc. within the RTT series and share identical connector type, gender, signal configuration, mating diameter, contact count, mounting orientation, and termination method.

Selection between the main part and substitute should be based on:

• Product Status: The RTT8705X maintains active production status, ensuring long-term availability and supply chain stability.
• Regulatory Compliance: The RTT8705X is certified ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement.
• Stock Availability: The RTT8705X currently has higher inventory levels (1073 units) compared to the RTT8705 (745 units), providing improved procurement flexibility.
• Moisture Sensitivity: MSL Level 1 rating on the RTT8705X indicates unlimited shelf life under standard storage conditions, eliminating moisture-related handling constraints.

Both parts are suitable for direct substitution in applications requiring 4.39mm twin stereo phone jack connectors with solder termination and right-angle mounting.

Frequently Asked Questions (FAQ)

Q: Can the RTT8705X be used as a direct replacement for the RTT8705?

A: Yes. Both parts share identical connector type (Phone Jack, Twin), gender (Female), signal configuration (Stereo 3-Conductor TRS), mating diameter (4.39mm), contact arrangement (10 contacts in 2 sets of 3), mounting type (Through Hole, Right Angle), and termination method (Solder). They are electrically and mechanically interchangeable.

Q: What is the difference between the RTT8705 and RTT8705X?

A: The primary difference is the "X" designation on the RTT8705X, which typically indicates a variant or updated version within the Switchcraft RTT series. Both parts maintain the same core specifications for connector function and performance. The RTT8705X provides documented specifications including operating temperature range (-55°C to 85°C), contact material (gold-plated copper alloy), and housing material (thermoplastic).

Q: Are there any compatibility concerns when substituting the RTT8705X for the RTT8705?

A: No compatibility concerns exist. The parts are mechanically and electrically equivalent. The mating diameter tolerance (0.177" actual diameter for 4.39mm nominal) is within standard specifications for this connector class and ensures proper mating with standard 4.39mm phone plugs.

Q: What is the MSL Level 1 rating on the RTT8705X?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life. The component does not require special moisture-controlled storage or handling procedures, simplifying inventory management and reducing procurement constraints.

Q: Are both parts RoHS and REACH compliant?

A: The RTT8705X is certified ROHS3 compliant and REACH unaffected. These certifications confirm compliance with current environmental regulations for electronic component manufacturing and use in regulated markets.

Q: Which part should be selected for new designs?

A: For new designs, the RTT8705X is recommended due to active production status, documented full specifications, higher current stock availability, and confirmed regulatory compliance certifications. Both parts are functionally equivalent for existing designs requiring substitution.