K66XHT-B44P-N D-Sub High Density Connector Equivalent & Substitute Parts

Part Overview

The K66XHT-B44P-N is a 44-position D-Sub high density plug connector manufactured by Kycon, Inc., designed for through-hole, right-angle solder termination applications. This connector features male pins, nickel-plated steel shell with gold-flashed contacts, and is rated for 1.5A at 30V with an operating temperature range of -55°C to 105°C. The part is RoHS compliant and currently active in production with 908 units in stock. Equivalent substitute parts may be required due to inventory constraints, design revisions, or supply chain considerations while maintaining electrical and mechanical compatibility.

Substiute Parts

K66XHT-B44P-N

Kycon, Inc.In Stock: 946K66XHT-B44P-N Datasheet

Current PartRFQ

K66X-B44P-N

Kycon, Inc.In Stock: 2119K66X-B44P-N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The K66X-B44P-N qualifies as a parametric equivalent substitute based on the following critical parameters that determine functional interchangeability:

Matching Parameters:

• Connector type: D-Sub, High Density Plug, Male Pins
• Position count: 44 positions across 3 rows
• Shell size: 3 (DB, B) High Density
• Mounting configuration: Through Hole, Right Angle
• Termination method: Solder
• Current rating: 1.5A
• Shell material and finish: Steel, Nickel Plated
• Contact finish: Gold, Flash
• Backset spacing: 0.350" (8.89mm)
• Flange feature: Housing/Shell (4-40)
• Dielectric material: Polybutylene Terephthalate (PBT), Glass Filled
• Flammability rating: UL94 V-0

Variance Parameters:

• Voltage rating: K66XHT-B44P-N rated 30V; K66X-B44P-N rated 29VAC
• Operating temperature upper limit: K66XHT-B44P-N rated to 105°C; K66X-B44P-N rated to 75°C
• Series designation: K66XHT versus K66X
• RoHS compliance version: RoHS Compliant versus ROHS3 Compliant

Parameter Comparison

Engineering Selection Recommendations

The K66X-B44P-N serves as a direct parametric equivalent for the K66XHT-B44P-N in applications where the voltage and temperature operating ranges of the substitute part are acceptable. Both parts are manufactured by Kycon, Inc., share identical mechanical and electrical specifications for position count, shell size, mounting configuration, and current rating, and maintain equivalent contact and shell material specifications.

Selection of K66X-B44P-N is appropriate when:

• Operating voltage does not exceed 29VAC
• Maximum ambient temperature does not exceed 75°C
• RoHS3 compliance is acceptable or required in place of standard RoHS compliance
• Higher inventory availability (2069 units) is a supply chain consideration

The K66XHT-B44P-N remains the specified choice for applications requiring the full 30V rating or operating temperatures up to 105°C. Both parts carry identical ECCN and HTSUS classifications and maintain MSL Level 1 (Unlimited) moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can K66X-B44P-N be used as a direct replacement for K66XHT-B44P-N in all applications?

A: The K66X-B44P-N is mechanically and electrically compatible for applications within its rated specifications. Substitution is valid only when operating voltage remains at or below 29VAC and maximum ambient temperature does not exceed 75°C. Applications requiring the full 30V rating or higher temperature operation must use the K66XHT-B44P-N.

Q: What are the key differences between these two connector models?

A: The primary differences are voltage rating (30V versus 29VAC) and maximum operating temperature (105°C versus 75°C). All other mechanical and electrical parameters, including position count, shell size, mounting type, current rating, and contact specifications, are identical.

Q: Are both parts RoHS compliant?

A: Yes. The K66XHT-B44P-N is RoHS Compliant, and the K66X-B44P-N is ROHS3 Compliant. Both meet RoHS requirements; ROHS3 represents a more recent compliance version.

Q: Do these connectors have the same footprint and mounting requirements?

A: Yes. Both connectors feature identical through-hole, right-angle mounting with 0.350" (8.89mm) backset spacing, 4-40 housing/shell flange features, and board lock with grounding indents. PCB layout and mounting hole patterns are identical.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: Are there any compliance or certification differences?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. The RoHS compliance version differs (RoHS Compliant versus ROHS3 Compliant), but both meet regulatory requirements. The K66X-B44P-N includes REACH Unaffected status in its specification.