Equivalent & Substitute Parts for A3-4DA-2SV

Part Overview

The A3-4DA-2SV is a 4-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for surface mount applications with 0.079" (2.00mm) pitch spacing. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 85°C with a 1A current rating at 200VAC. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain the core electrical and mechanical specifications while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	4
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Current Rating	1A
Voltage Rating	200VAC / 200V
Operating Temperature	-55°C to 85°C
Material Flammability Rating	UL94 V-0
Insulation Material	Polyphenylene Sulfide (PPS) / Plastic / Thermoplastic
Contact Material	Phosphor Bronze / Copper Alloy

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

Connector type: Receptacle
Contact type: Female socket
Number of positions: 4
Pitch spacing: 0.079" (2.00mm)
Mounting type: Surface mount
Termination: Solder
Fastening type: Push-pull
Contact finish: Gold
Flammability rating: UL94 V-0

Allowable Variations:

Operating temperature range: Substitute parts may exceed the original -55°C to 85°C specification
Current rating: Substitute parts may equal or exceed 1A
Voltage rating: Substitute parts must meet or exceed 200V
Contact finish thickness: Variations permitted within industry standards
Insulation color: Black or brown acceptable
Packaging format: Tube, bulk, or tape & reel formats are interchangeable

All substitute parts listed maintain full compatibility with the A3-4DA-2SV footprint and electrical requirements while offering improved product status and regulatory compliance.

Parameter Comparison

Parameter	A3-4DA-2SV	A3-4DA-2SV(71)	150204-2000-RB	55510-004LF	55510-004TRLF	55510-104LF	55510-104TRLF	55510-304LF
Manufacturer	Hirose	Hirose	3M	Amphenol ICC	Amphenol ICC	Amphenol ICC	Amphenol ICC	Amphenol ICC
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Number of Positions	4	4	4	4	4	4	4	4
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2	2	2	2
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Current Rating (Amps)	1A	1A	1A	2A	2A	2A	2A	2A
Voltage Rating	200VAC	200VAC	500VDC	200V	200V	200V	200V	200V
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	Non-compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	800 Pcs	2495 Pcs	627 Pcs	816 Pcs	851 Pcs	753 Pcs	1208 Pcs	1036 Pcs

Engineering Selection Recommendations

Primary Substitute: A3-4DA-2SV(71)

The A3-4DA-2SV(71) is the direct equivalent from Hirose Electric Co Ltd, maintaining identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. This part is the preferred choice for direct replacement in existing designs.

Secondary Substitutes: Amphenol ICC Minitek® 2.00mm Series (55510-004LF, 55510-004TRLF, 55510-104LF, 55510-104TRLF, 55510-304LF)

All Amphenol ICC Minitek® 2.00mm series receptacles meet or exceed the A3-4DA-2SV specifications. These parts offer:

Enhanced current rating (2A vs. 1A)
Extended operating temperature range (-55°C to 125°C vs. -55°C to 85°C)
Full RoHS compliance
Multiple packaging options (tube, tape & reel)

Selection among Amphenol variants depends on packaging requirements and contact finish thickness specifications.

Alternative Substitute: 150204-2000-RB (3M)

The 3M 150204-2000-RB provides an alternative from a different manufacturer with enhanced voltage rating (500VDC vs. 200VAC) and extended operating temperature (-55°C to 105°C). This part is suitable for applications requiring higher voltage margins.

Frequently Asked Questions (FAQ)

Q: Can A3-4DA-2SV(71) be used as a direct replacement for A3-4DA-2SV?

A: Yes. The A3-4DA-2SV(71) maintains identical pitch spacing (0.079"), position count (4), mounting type (surface mount), and electrical ratings (1A, 200VAC). The primary difference is product status (active vs. obsolete) and improved RoHS3 compliance.

Q: What are the key differences between Hirose and Amphenol ICC substitutes?

A: Hirose A3-4DA-2SV(71) provides direct compatibility with the original design. Amphenol ICC Minitek® series parts offer higher current capacity (2A), extended temperature range (-55°C to 125°C), and multiple packaging formats. All maintain the critical 0.079" pitch and 4-position configuration.

Q: Are packaging format differences (tube vs. tape & reel) significant for compatibility?

A: Packaging format affects handling and assembly processes but does not impact electrical or mechanical compatibility. Tube packaging (LF suffix) suits manual assembly and lower-volume applications. Tape & reel packaging (TRLF suffix) is optimized for automated pick-and-place assembly.

Q: Can I use 55510-004LF instead of 55510-104LF?

A: Both parts are functionally equivalent with identical pitch, position count, and mounting specifications. The primary difference is contact finish thickness (1.97µin vs. 30.0µin). Selection depends on specific contact durability requirements for your application.

Q: What does the voltage rating difference (200VAC vs. 500VDC) mean for substitution?

A: The 150204-2000-RB offers higher voltage capability (500VDC) compared to the original specification (200VAC). This provides additional safety margin in applications operating at or near the original voltage rating. The part remains suitable for 200V applications.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (A3-4DA-2SV(71), 150204-2000-RB, and all Amphenol ICC Minitek® variants) are RoHS compliant. The original A3-4DA-2SV is RoHS non-compliant, making substitution necessary for RoHS-regulated applications.

Q: Does the extended operating temperature range of substitute parts affect my design?

A: The extended temperature range (-55°C to 125°C for Amphenol parts vs. -55°C to 85°C for the original) provides additional thermal margin. This does not negatively impact designs operating within the original temperature specification and may improve reliability in temperature-sensitive applications.

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