B5741-214-F-N-2 Equivalent & Substitute Parts

Part Overview

The B5741-214-F-N-2 is a 14-position receptacle connector from Harwin Inc.'s Datamate L-Tek series, designed for board-to-board or cable applications with 0.079" (2.00mm) pitch mating. This connector features gold-plated contacts, through-hole solder termination, and a locking ramp fastening mechanism. The part is currently obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The Datamate L-Tek series remains actively supported through equivalent models with improved specifications and compliance status.

Key Parameters

Parameter	Value
Manufacturer Part Number	B5741-214-F-N-2
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Series	Datamate L-Tek
Connector Type	Receptacle
Number of Positions	14
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 125°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the B5741-214-F-N-2 is based on strict equivalence of the following critical parameters:

Connector Type & Configuration: Receptacle, 14-position, 2-row arrangement
Pitch Specification: 0.079" (2.00mm) mating pitch and row spacing
Mounting & Termination: Through-hole solder termination with locking ramp fastening
Contact System: Female socket, circular beryllium copper contacts with gold plating
Electrical Performance: Operating temperature range -55°C ~ 125°C
Material Standards: UL94 V-0 flammability rating, polyester or polyamide insulation

The M80-8501445 qualifies as a direct substitute based on identical configuration across all critical parameters. This part represents the active production equivalent within the Datamate L-Tek series.

Parameter Comparison

Parameter	B5741-214-F-N-2	M80-8501445
Manufacturer	Harwin Inc.	Harwin Inc.
Series	Datamate L-Tek	Datamate L-Tek
Connector Type	Receptacle	Receptacle
Number of Positions	14	14
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	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Locking Ramp	Locking Ramp
Contact Finish - Mating	Gold	Gold
Contact Type	Female Socket	Female Socket
Contact Material	Beryllium Copper	Beryllium Copper
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The M80-8501445 is the direct functional equivalent for the obsolete B5741-214-F-N-2. Both parts share identical mechanical and electrical interface specifications within the Datamate L-Tek series. The M80-8501445 offers the following advantages for new designs and production transitions:

Active Product Status: M80-8501445 is in active production, ensuring long-term availability and supply chain stability
Regulatory Compliance: M80-8501445 achieves ROHS3 compliance, whereas the B5741-214-F-N-2 is RoHS non-compliant
Enhanced Voltage Rating: M80-8501445 supports 800V versus 120V on the original part, providing greater electrical margin for demanding applications
Improved Insulation Material: M80-8501445 uses polyamide (PA46) nylon 4/6 glass-filled insulation, offering superior thermal and mechanical properties compared to polyester

For applications requiring the exact original specification, the B5741-214-F-N-2 remains available in inventory (908 pcs). For new production or compliance-driven transitions, M80-8501445 is the recommended path forward.

Frequently Asked Questions (FAQ)

Q: Can M80-8501445 be used as a direct replacement for B5741-214-F-N-2 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.079"), position count (14), row configuration (2 rows), mounting type (through-hole), and termination method (solder). The mechanical and electrical interfaces are fully compatible.

Q: What are the differences between these two parts?

A: The primary differences are product status, compliance, and performance specifications. M80-8501445 is active production with ROHS3 compliance and 800V voltage rating, while B5741-214-F-N-2 is obsolete, RoHS non-compliant, and rated for 120V. Contact post length differs: B5741-214-F-N-2 has 0.051" (1.30mm) posts, while M80-8501445 has 0.118" (3.00mm) posts.

Q: Does the contact post length difference affect compatibility?

A: Contact post length affects PCB hole depth and solder joint formation. The longer posts on M80-8501445 (3.00mm versus 1.30mm) provide greater solder engagement and mechanical strength. PCB design must accommodate the longer post length; existing through-hole patterns designed for the shorter posts may require evaluation.

Q: What is the packaging difference?

A: B5741-214-F-N-2 packaging is not specified in available data. M80-8501445 is supplied in tube packaging, which is standard for production quantities of this connector type.

Q: Are there any applications where B5741-214-F-N-2 must be used instead of M80-8501445?

A: Applications with strict legacy component specifications or those requiring the exact original part number may necessitate B5741-214-F-N-2. However, the higher voltage rating and improved compliance of M80-8501445 make it suitable for all standard applications within the operating temperature range of -55°C to 125°C.

Q: What is the current availability of these parts?

A: B5741-214-F-N-2 has 908 pcs in stock as new original inventory. M80-8501445 has 1032 pcs in stock. Both are available for immediate procurement.

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