TE Connectivity 350826-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 350826-2 is a 4-position header connector from the Universal MATE-N-LOK series, designed for board-to-cable/wire applications. This through-hole mounted connector features gold-plated mating contacts and tin-lead plated posts for solder termination. The connector is currently active in production with 906 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector interface, allowing direct functional replacement in applications where the primary part becomes unavailable or when alternative packaging or compliance requirements are necessary.

Substiute Parts

350826-2

TE Connectivity AMP ConnectorsIn Stock: 1004350826-2 Datasheet

Current PartRFQ

350826-4

TE Connectivity AMP ConnectorsIn Stock: 1637350826-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connectors is determined by equivalence across the following critical parameters:

Mating Interface Parameters:

• Connector type (Header)
• Contact type (Female Socket)
• Number of positions (4)
• Pitch - mating (0.250" / 6.35mm)
• Contact finish - mating (Gold at 30.0µin thickness)

Mechanical Parameters:

• Mounting type (Through Hole)
• Termination method (Solder)
• Insulation material (Polyamide/Nylon)
• Insulation height (0.550")
• Contact length - post (0.155")

Compliance Parameters:

• Material flammability rating (UL94 V-0)
• Series designation (Universal MATE-N-LOK)

The substitute part 350826-4 maintains all critical mating interface and mechanical parameters, ensuring functional compatibility with applications designed for the 350826-2. Differences in post contact finish (tin versus tin-lead) and RoHS compliance status do not affect the mating interface performance.

Parameter Comparison

Engineering Selection Recommendations

350826-2 Selection Criteria: The 350826-2 is appropriate for applications where RoHS non-compliant components are acceptable and where tin-lead post plating is specified. This part maintains active production status and is suitable for legacy system designs or applications without RoHS requirements.

350826-4 Selection Criteria: The 350826-4 is the preferred substitute when ROHS3 compliance is required or when REACH-unaffected status is mandated by procurement specifications. The tin post finish on the 350826-4 provides equivalent solder joint reliability while meeting modern environmental compliance standards. Higher inventory availability (1616 units versus 906 units) supports supply chain continuity for high-volume applications.

Both parts are functionally equivalent at the mating interface and maintain identical mechanical and electrical characteristics for board-to-cable/wire connection applications within the Universal MATE-N-LOK series.

Frequently Asked Questions (FAQ)

Q: Can the 350826-4 directly replace the 350826-2 in existing PCB designs?

A: Yes. The 350826-4 maintains all critical mating interface parameters, mechanical dimensions, and mounting characteristics. PCB footprints designed for the 350826-2 accommodate the 350826-4 without modification.

Q: What is the functional difference between tin-lead and tin post finishes?

A: Both finishes provide equivalent solder joint performance and reliability. The tin finish on the 350826-4 eliminates lead content, supporting ROHS3 compliance requirements. No functional performance difference exists in solder joint formation or long-term reliability.

Q: Are there any compatibility issues with mating connectors?

A: No. Both the 350826-2 and 350826-4 feature identical mating contact geometry, pitch (0.250"), and gold plating specifications. Mating connectors designed for either part are fully compatible with both.

Q: Why does the 350826-4 have higher inventory availability?

A: The 350826-4 is packaged in bulk format and carries ROHS3 compliance, making it the standard production variant for current manufacturing. The 350826-2 remains available as a legacy option for non-compliant applications.

Q: What is the significance of REACH Affected versus REACH Unaffected status?

A: REACH Affected status (350826-2) indicates the component contains substances of concern under EU REACH regulations. REACH Unaffected status (350826-4) confirms the component does not contain restricted substances, simplifying compliance documentation for EU market applications.

Q: Can both parts be used interchangeably in the same production run?

A: Yes, provided the application does not specify RoHS compliance requirements. Both parts are electrically and mechanically equivalent. Applications requiring RoHS compliance must use the 350826-4 exclusively.