3M 150250-2000-TH Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The 3M 150250-2000-TH is a 50-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 currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 50-position rectangular connectors with identical electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Number of Positions	50
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Contact Type	Female Socket
Fastening Type	Push-Pull
Current Rating	1A
Voltage Rating	500VDC
Operating Temperature	-55°C ~ 105°C
Contact Finish - Mating	Gold
Insulation Material	Thermoplastic
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the 150250-2000-TH is determined by strict equivalence across the following critical parameters:

Connector configuration: 50-position receptacle with 2-row arrangement
Pitch specifications: 0.079" (2.00mm) mating pitch and row spacing
Mounting and termination: Surface mount with solder termination
Electrical ratings: 1A current capacity and 500VDC voltage rating
Environmental compliance: UL94 V-0 flammability rating and -55°C to 105°C operating range
Contact system: Female socket contacts with gold mating finish and push-pull fastening

The 3M 150250-2000-RB meets all substitution criteria as a direct equivalent within the 1502 series, with identical mechanical and electrical specifications. Differences in contact finish thickness and post finish material do not affect functional compatibility for standard applications.

Parameter Comparison

Parameter	150250-2000-TH (Main Part)	150250-2000-RB (Substitute)
Manufacturer	3M	3M
Series	1502	1502
Connector Type	Receptacle	Receptacle
Number of Positions	50	50
Number of Rows	2	2
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Contact Type	Female Socket	Female Socket
Fastening Type	Push-Pull	Push-Pull
Current Rating (Amps)	1A	1A
Voltage Rating	500VDC	500VDC
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C
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)
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Finish - Post	Tin-Lead	Tin
Contact Finish Thickness - Post	200.0µin (5.08µm)	200.0µin (5.08µm)
Insulation Material	Thermoplastic	Thermoplastic
Contact Shape	Square	Square
Contact Material	Copper Alloy	Copper Alloy
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The 3M 150250-2000-RB is the direct functional equivalent for applications currently using the obsolete 150250-2000-TH. Both connectors share identical mechanical interfaces, electrical ratings, and environmental operating specifications within the 1502 series.

The 150250-2000-RB offers the advantage of active product status, ensuring ongoing availability and supply chain continuity. Additionally, the substitute part achieves RoHS compliance, whereas the original part does not. The increased mating contact finish thickness (30.0µin versus 15.0µin) on the substitute provides enhanced durability for repeated mating cycles.

The post finish difference (tin versus tin-lead) reflects modern manufacturing standards and does not affect electrical or mechanical compatibility. Both parts maintain identical current and voltage ratings, operating temperature ranges, and flammability certifications.

Frequently Asked Questions (FAQ)

Q: Can the 150250-2000-RB directly replace the 150250-2000-TH in existing designs?

A: Yes. Both connectors are 50-position receptacles with 0.079" (2.00mm) pitch, identical mounting type, and equivalent electrical specifications. The mechanical interface and pin configuration are identical, enabling direct substitution without design modification.

Q: What is the significance of the contact finish thickness difference?

A: The 150250-2000-RB features 30.0µin (0.76µm) mating contact finish compared to 15.0µin (0.38µm) on the original part. This increased thickness extends contact life under repeated mating and improves resistance to wear and corrosion without affecting electrical performance.

Q: Does the post finish change from tin-lead to tin affect compatibility?

A: No. The post finish material does not affect connector compatibility or electrical function. Both finishes provide equivalent solderability and mechanical strength. The tin finish on the substitute reflects current manufacturing practices and RoHS compliance requirements.

Q: Why is the original part obsolete?

A: The 150250-2000-TH is classified as obsolete by 3M. The 150250-2000-RB represents the current active equivalent within the 1502 series, offering improved compliance and durability characteristics.

Q: Are there packaging differences between these parts?

A: The original part (150250-2000-TH) is supplied in standard packaging, while the substitute (150250-2000-RB) is supplied in bulk packaging. Both maintain identical moisture sensitivity level (MSL 1 - Unlimited) and storage requirements.

Q: What is the inventory status for these parts?

A: The 150250-2000-TH has 936 pieces in stock (new original). The 150250-2000-RB has 986 pieces in stock (new original, bulk packaging). Both are available for immediate procurement.

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