633-M44-263-WN3 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The 633-M44-263-WN3 is a 44-position D-Sub plug connector from Mercury United Electronics, Inc., featuring male pins with right-angle board edge mounting. This high-density connector (Shell Size 3, DB/B layout) is designed for signal applications requiring solder termination and operates across the industrial temperature range of -55°C to 125°C. The connector is actively manufactured and maintains full RoHS3 and REACH compliance, making it suitable for modern electronic assemblies where regulatory adherence is mandatory. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same connector series, allowing for design flexibility and supply chain optimization.

Substiute Parts

633-M44-263-WN3

Mercury United Electronics, Inc.In Stock: 1054633-M44-263-WN3 Datasheet

Current PartRFQ

633-M44-263-BN3

Mercury United Electronics, Inc.In Stock: 836633-M44-263-BN3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 633-M44-263-BN3 qualifies as a parametric equivalent to the 633-M44-263-WN3 based on strict adherence to the following critical parameters:

• Connector type, pin count, and shell size remain identical (44-position D-Sub, Shell Size 3)
• Mounting configuration, termination method, and contact rating are unchanged
• Operating temperature range, material specifications, and contact finish properties are equivalent
• Regulatory compliance status (RoHS3, REACH) is maintained
• Flammability rating and dielectric material composition are identical

The sole difference between these parts is the housing color: white (WN3) versus black (BN3). This distinction is cosmetic and does not affect electrical performance, mechanical compatibility, or functional operation. Both parts share the same base product number (633-M44) and are manufactured by the same supplier under identical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 633-M44-263-WN3 and 633-M44-263-BN3 are active products with full regulatory compliance. Selection between these parts should be based on:

• Housing color requirements for visual identification or assembly documentation
• Inventory availability and lead time considerations
• Design specification constraints that may mandate a specific housing color

From an electrical and mechanical standpoint, either part satisfies identical functional requirements. Both maintain active product status, RoHS3 compliance, and REACH unaffected designation. The choice between white and black housing does not impact signal integrity, current capacity, temperature performance, or connector reliability.

Frequently Asked Questions (FAQ)

Q: Can the 633-M44-263-BN3 be used as a direct replacement for the 633-M44-263-WN3?

A: Yes. The 633-M44-263-BN3 is electrically and mechanically equivalent to the 633-M44-263-WN3. The only difference is housing color (black versus white), which does not affect connector function, performance, or compatibility.

Q: Are there any compatibility issues when substituting between these two part numbers?

A: No compatibility issues exist. Both connectors feature identical pin counts (44 positions), shell size (3, DB/B high density), mounting configuration (board edge, through hole, right angle), and termination method (solder). They are fully interchangeable from a functional perspective.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 633-M44-263-WN3 and 633-M44-263-BN3 are RoHS3 compliant and REACH unaffected. Both carry the UL94 V-0 flammability rating and are manufactured to identical specifications.

Q: What is the significance of the housing color difference?

A: Housing color is a cosmetic distinction used for visual identification, assembly documentation, or design aesthetics. It has no impact on electrical performance, mechanical fit, or operational characteristics.

Q: Are both parts currently available?

A: Yes. Both parts are active products with current inventory. The 633-M44-263-WN3 has 1043 units in stock, while the 633-M44-263-BN3 has 791 units in stock.

Q: What is the operating temperature range for these connectors?

A: Both connectors operate across -55°C to 125°C, suitable for industrial and extended temperature applications.

Q: What is the current rating per contact?

A: Both connectors are rated for 5A per contact, supporting moderate to high current signal applications.