3M 150244-2020-TH Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The 3M 150244-2020-TH is a 44-position receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount board-to-board or cable applications. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 105°C. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	44
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Current Rating	1A
Voltage Rating	500VDC
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

The 3M 150244-2020-RB qualifies as a direct substitute for the 150244-2020-TH based on the following critical parameters:

Identical connector type (Receptacle)
Identical position count (44 positions)
Identical mating pitch (0.079" / 2.00mm)
Identical row configuration (2 rows with 0.079" spacing)
Identical mounting method (Surface Mount)
Identical fastening mechanism (Push-Pull)
Identical electrical ratings (1A current, 500VDC voltage)
Identical operating temperature range (-55°C ~ 105°C)
Identical flammability rating (UL94 V-0)
Identical contact material and shape (Copper Alloy, Square)
Identical insulation material and height (Thermoplastic, 0.183")

Variations between parts are limited to contact finish specifications and product status, which do not affect mechanical or electrical compatibility.

Parameter Comparison

Parameter	150244-2020-TH (Main)	150244-2020-RB (Substitute)
Manufacturer	3M	3M
Series	1502	1502
Product Status	Obsolete	Active
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	44	44
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	30.0µin (0.76µm)
Insulation Color	Black	Black
Insulation Height	0.183" (4.65mm)	0.183" (4.65mm)
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Finish - Post	Tin-Lead	Tin
Current Rating	1A	1A
Voltage Rating	500VDC	500VDC
Insulation Material	Thermoplastic	Thermoplastic
Contact Shape	Square	Square
Contact Material	Copper Alloy	Copper Alloy
Contact Finish Thickness - Post	200.0µin (5.08µm)	200.0µin (5.08µm)
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The 3M 150244-2020-RB is the direct substitute for the obsolete 150244-2020-TH. Selection should be based on the following factors:

Product Status: The 150244-2020-RB is active and currently manufactured, whereas the 150244-2020-TH is obsolete. For new designs or ongoing procurement, the 150244-2020-RB is the appropriate choice.

Compliance: The 150244-2020-RB is RoHS compliant and REACH unaffected, providing regulatory advantages over the non-compliant 150244-2020-TH. This is significant for applications subject to environmental regulations.

Contact Finish Specifications: The 150244-2020-RB features increased gold plating thickness on mating contacts (30.0µin versus 15.0µin), providing enhanced durability and contact reliability. The post finish differs (Tin versus Tin-Lead), reflecting modern lead-free manufacturing standards.

Electrical and Mechanical Compatibility: All critical parameters—connector type, position count, pitch, row configuration, mounting method, fastening mechanism, electrical ratings, and operating temperature range—are identical between the two parts, ensuring direct functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the 150244-2020-RB directly replace the 150244-2020-TH in existing assemblies?

A: Yes. Both connectors share identical mechanical and electrical specifications, including 44 positions, 0.079" pitch, surface mount configuration, push-pull fastening, 1A current rating, and 500VDC voltage rating. The connectors are mechanically and electrically interchangeable.

Q: What is the significance of the different contact finish thicknesses?

A: The 150244-2020-RB provides 30.0µin (0.76µm) gold plating on mating contacts compared to 15.0µin (0.38µm) on the 150244-2020-TH. Increased plating thickness enhances contact durability and resistance to wear during mating cycles, improving long-term reliability.

Q: Why does the post finish differ between the two parts?

A: The 150244-2020-TH uses Tin-Lead post finish, while the 150244-2020-RB uses Tin post finish. This reflects the transition to lead-free manufacturing standards. Both finishes provide equivalent solderability and electrical performance with modern lead-free solder processes.

Q: Is the 150244-2020-RB suitable for applications requiring RoHS compliance?

A: Yes. The 150244-2020-RB is RoHS compliant and REACH unaffected, making it suitable for applications subject to environmental regulations. The 150244-2020-TH is RoHS non-compliant.

Q: Are there any packaging differences between these connectors?

A: The 150244-2020-TH packaging is not specified in available data. The 150244-2020-RB is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors operate across the same temperature range?

A: Yes. Both the 150244-2020-TH and 150244-2020-RB operate across -55°C to 105°C and maintain UL94 V-0 flammability rating across this range.

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