MA35-44P-2DS(71) Equivalent & Substitute Parts

Part Overview

The MA35-44P-2DS(71) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-board or cable applications. This connector features 44 positions arranged in 2 rows with 0.079" (2.00mm) pitch spacing. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	MA35-44P-2DS(71)
Manufacturer	Hirose Electric Co Ltd
Series	MA35
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	44
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole, Right Angle
Termination	Kinked Pin, Solder
Current Rating	2A
Voltage Rating	200VAC
Operating Temperature	-55°C ~ 85°C
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MA35-44P-2DS(71) is determined by strict equivalence across the following critical parameters:

Series designation (MA35)
Connector type (Header)
Contact type (Male Pin)
Number of positions (44)
Number of rows (2)
Pitch spacing (0.079" / 2.00mm)
Row spacing (0.079" / 2.00mm)
Mounting configuration (Through Hole, Right Angle)
Termination method (Kinked Pin, Solder)
Fastening type (Push-Pull)
Current rating (2A)
Voltage rating (200VAC)
Operating temperature range (-55°C ~ 85°C)
Material flammability rating (UL94 V-0)

The MA35-44P-2DS(51) qualifies as a direct substitute based on complete alignment with all critical electrical and mechanical parameters. The primary distinction is product status and packaging configuration.

Parameter Comparison

Parameter	MA35-44P-2DS(71)	MA35-44P-2DS(51)	Match
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	✓
Series	MA35	MA35	✓
Connector Type	Header	Header	✓
Contact Type	Male Pin	Male Pin	✓
Number of Positions	44	44	✓
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	Through Hole, Right Angle	Through Hole, Right Angle	✓
Termination	Kinked Pin, Solder	Kinked Pin, Solder	✓
Fastening Type	Push-Pull	Push-Pull	✓
Contact Length - Mating	0.138" (3.50mm)	0.138" (3.50mm)	✓
Contact Length - Post	0.102" (2.60mm)	0.102" (2.60mm)	✓
Insulation Height	0.157" (4.00mm)	0.157" (4.00mm)	✓
Contact Shape	Square	Square	✓
Contact Finish - Mating	Tin	Tin	✓
Contact Finish Thickness - Mating	118.1µin (3.00µm)	118.1µin (3.00µm)	✓
Contact Finish - Post	Tin	Tin	✓
Contact Finish Thickness - Post	118.1µin (3.00µm)	118.1µin (3.00µm)	✓
Contact Material	Brass	Brass	✓
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	✓
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	✓
Material Flammability Rating	UL94 V-0	UL94 V-0	✓
Insulation Color	Black	Black	✓
Current Rating	2A	2A	✓
Voltage Rating	200VAC	200VAC	✓
Product Status	Obsolete	Active	Differs
Packaging	Not specified	Bulk	Differs
RoHS Status	Not specified	RoHS Compliant	Differs
Moisture Sensitivity Level	Not Applicable	1 (Unlimited)	Differs

Engineering Selection Recommendations

The MA35-44P-2DS(51) is the direct functional equivalent of the MA35-44P-2DS(71). Both parts share identical electrical and mechanical specifications across all critical parameters including connector geometry, contact configuration, current and voltage ratings, and operating temperature range.

The MA35-44P-2DS(51) offers the advantage of active product status, ensuring ongoing availability and manufacturing support. This part is RoHS Compliant and carries a Moisture Sensitivity Level rating of 1 (Unlimited), providing additional compliance documentation compared to the obsolete MA35-44P-2DS(71).

For new designs or ongoing production requiring this connector type, the MA35-44P-2DS(51) is the appropriate selection. For legacy system maintenance where the original MA35-44P-2DS(71) is specified, the MA35-44P-2DS(51) provides full electrical and mechanical compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can MA35-44P-2DS(51) be used as a direct replacement for MA35-44P-2DS(71)?

A: Yes. Both parts are identical in all electrical and mechanical parameters. The MA35-44P-2DS(51) is the active production equivalent of the obsolete MA35-44P-2DS(71).

Q: What are the key differences between these two part numbers?

A: The primary differences are product status (obsolete vs. active), packaging configuration (unspecified vs. bulk), and compliance documentation (RoHS status and MSL rating). Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting MA35-44P-2DS(51) for MA35-44P-2DS(71)?

A: No compatibility concerns exist. Both parts feature identical pitch spacing (0.079" / 2.00mm), row configuration (2 rows, 44 positions), mounting type (through-hole, right-angle), and contact specifications. PCB layouts and mating connectors designed for MA35-44P-2DS(71) will accept MA35-44P-2DS(51) without modification.

Q: What is the significance of the packaging difference?

A: The MA35-44P-2DS(51) is supplied in bulk packaging, which is standard for active production parts. This does not affect the connector's electrical or mechanical performance, only the delivery format and handling considerations.

Q: Does the RoHS Compliance status of MA35-44P-2DS(51) affect compatibility?

A: No. RoHS Compliance is an environmental and regulatory attribute that does not impact electrical or mechanical compatibility. The MA35-44P-2DS(51) meets RoHS requirements, making it suitable for applications with environmental compliance mandates.

Q: What is the Moisture Sensitivity Level (MSL) rating and why does it differ?

A: MSL 1 (Unlimited) indicates the part has no moisture sensitivity restrictions and requires no special handling or storage conditions. This is a favorable attribute for logistics and storage. The difference in MSL documentation does not affect functional compatibility.

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