Equivalent & Substitute Parts for A3C-16P-2DSA Rectangular Connector

Part Overview

The A3C-16P-2DSA is a through-hole rectangular connector header manufactured by Hirose Electric Co Ltd, featuring 16 positions arranged in 2 rows with 2.00mm pitch. This connector is classified as obsolete, which necessitates identification of active substitute components that maintain electrical and mechanical compatibility for board-to-board or cable applications. The part operates within -55°C to 85°C temperature range with 1A current rating at 200V, utilizing gold-plated brass contacts with polyamide insulation.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	16
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Shrouding	Unshrouded
Operating Temperature Range	-55°C ~ 85°C
Current Rating	1A
Voltage Rating	200V
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the A3C-16P-2DSA is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

Connector type: Header
Contact type: Male Pin
Number of positions: 16
Number of rows: 2
Pitch - mating: 0.079" (2.00mm)
Row spacing - mating: 0.079" (2.00mm)
Mounting type: Through Hole
Termination: Solder
Fastening type: Push-Pull
Contact shape: Square
Shrouding: Unshrouded
Style: Board to Board or Cable

Allowable Parameter Variations:

Contact length (mating and post): Variations permitted within mechanical envelope constraints
Insulation height: Variations permitted within board layout constraints
Contact material: Brass or Phosphor Bronze acceptable
Insulation material: Polyamide (PA), Nylon, or Liquid Crystal Polymer (LCP) acceptable
Contact finish: Gold or Tin acceptable on mating surfaces
Operating temperature: Higher ranges acceptable if minimum -55°C maintained
Current rating: Higher ratings acceptable
Product status: Active substitutes preferred over obsolete

The A3C-16P-2DSA(30) represents a direct equivalent from the same manufacturer with identical electrical and mechanical specifications but active product status. Samtec MTMM-108 series parts provide cross-manufacturer alternatives meeting all mandatory parameters with enhanced specifications in temperature range and current capacity.

Parameter Comparison

Parameter	A3C-16P-2DSA	A3C-16P-2DSA(30)	MTMM-108-02-F-D-131	MTMM-108-02-G-D-112	MTMM-108-02-G-D-115	MTMM-108-02-G-D-126	MTMM-108-02-G-D-138	MTMM-108-02-S-D-120	MTMM-108-02-S-D-138	MTMM-108-02-T-D-117	MTMM-108-03-F-D-150
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header	Header	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	16	16	16	16	16	16	16	16	16	16	16
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
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)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Row Spacing - 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)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Material	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin	Gold
Contact Finish - Post	Gold	Gold	Tin	Gold	Gold	Gold	Gold	Tin	Tin	Tin	Tin
Operating Temperature Range	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 125°C
Current Rating	1A	1A	3A	3A	3A	3A	3A	3A	3A	3A	3A
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	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Not specified	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent: A3C-16P-2DSA(30) is the primary substitute, offering identical electrical and mechanical specifications with active product status and RoHS compliance. This part maintains the same contact geometry, pitch, and operating characteristics as the original obsolete component.

Cross-Manufacturer Alternatives: The Samtec MTMM-108 series provides functionally equivalent rectangular connectors with enhanced specifications. All MTMM-108 variants maintain the critical 2.00mm pitch, 16-position, 2-row configuration and through-hole solder termination. These parts feature improved operating temperature ranges (-55°C to 105°C or 125°C) and higher current ratings (3A versus 1A), providing superior performance margins. All MTMM-108 parts carry ROHS3 compliance and UL94 V-0 flammability ratings.

Contact Finish Considerations:

Gold-plated mating surfaces (MTMM-108-02-G-D and MTMM-108-02-S-D variants) maintain compatibility with the original gold-plated A3C-16P-2DSA contacts
Tin-plated mating surfaces (MTMM-108-02-T-D-117) provide alternative contact finish with reduced cost
Post finish variations (Gold or Tin) do not affect mating compatibility

Insulation Material Transition: Samtec MTMM-108 series utilizes Liquid Crystal Polymer (LCP) insulation instead of polyamide, providing enhanced dimensional stability and moisture resistance while maintaining electrical performance and flammability ratings.

Contact Length Variations: MTMM-108 series offers multiple contact length options (ranging from 0.112" to 0.150" mating length) to accommodate different board thicknesses and stacking height requirements. Selection depends on specific application board stack-up geometry.

Frequently Asked Questions (FAQ)

Q: Can MTMM-108 series connectors directly replace A3C-16P-2DSA in existing designs? A: Yes, all MTMM-108 variants maintain the critical 2.00mm pitch, 16-position, 2-row configuration, and through-hole solder termination. Mechanical compatibility is ensured for standard board layouts. Contact length variations require verification against specific board stack-up requirements.

Q: What is the difference between A3C-16P-2DSA and A3C-16P-2DSA(30)? A: Both parts are electrically and mechanically identical. The primary difference is product status: A3C-16P-2DSA is obsolete while A3C-16P-2DSA(30) is active. A3C-16P-2DSA(30) includes RoHS compliance certification. Packaging differs (standard versus bulk).

Q: Are there temperature rating differences between substitute options? A: Yes. The original A3C-16P-2DSA operates -55°C to 85°C. Most MTMM-108 variants extend to -55°C to 125°C, with MTMM-108-02-T-D-117 rated to -55°C to 105°C. Higher temperature ratings provide additional design margin without affecting lower-temperature performance.

Q: What does the cuttable feature on MTMM-108 connectors mean? A: Samtec MTMM-108 headers feature cuttable design, allowing individual rows or sections to be separated if required for custom configurations. This feature does not affect standard 16-position, 2-row applications.

Q: How do contact material differences affect performance? A: A3C-16P-2DSA uses brass contacts while MTMM-108 series uses phosphor bronze. Both materials provide equivalent electrical conductivity and contact reliability. Phosphor bronze offers enhanced spring properties and wear resistance.

Q: Which MTMM-108 variant should be selected for new designs? A: MTMM-108-02-G-D-115 is recommended for new designs, offering gold-plated mating and post surfaces, 3A current rating, -55°C to 125°C operating range, and bulk packaging availability with 1882 units in stock.

Q: Are all substitute parts RoHS compliant? A: A3C-16P-2DSA(30) is RoHS Compliant. All Samtec MTMM-108 variants are ROHS3 Compliant. Original A3C-16P-2DSA compliance status is not specified in available documentation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message