DF11Z-24DS-2V(20) Equivalent & Substitute Parts

Part Overview

The DF11Z-24DS-2V(20) is a 24-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for surface mount board-to-board or cable applications with 0.079" (2.00mm) pitch spacing. This connector features tin contact finish, friction lock fastening, and operates across -30°C to 85°C with a 2A current rating at 250V. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design support and component sourcing.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF11Z-24DS-2V(20)
Manufacturer	Hirose Electric Co Ltd
Category	Rectangular Connectors
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	24
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Mounting Type	Surface Mount
Termination	Solder
Current Rating	2A
Voltage Rating	250V
Operating Temperature	-30°C ~ 85°C
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the DF11Z-24DS-2V(20) is determined by the following critical parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 24 positions at 0.079" (2.00mm) mating pitch with 2-row configuration
Mounting & Termination: Surface mount with solder termination
Electrical Ratings: Minimum 2A current capacity and 250V voltage rating
Environmental Compliance: RoHS compliance and UL94 V-0 flammability rating
Operating Temperature Range: Support for -30°C to 85°C minimum

Two substitute parts meet these core substitution criteria with variations in contact finish, fastening mechanism, and packaging format.

Parameter Comparison

Parameter	DF11Z-24DS-2V(20)	A3A-24DA-2SV(71)	DF11CZ-24DS-2V(22)
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	24	24	24
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder
Contact Finish - Mating	Tin	Gold	Tin
Current Rating (Amps)	2A	1A	2A
Voltage Rating	250V	200VAC	250V
Operating Temperature	-30°C ~ 85°C	-55°C ~ 85°C	-30°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Obsolete	Active	Active
Fastening Type	Friction Lock	Push-Pull	Friction Lock
Packaging	-	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

DF11CZ-24DS-2V(22) is the primary substitute for the DF11Z-24DS-2V(20). Both connectors share identical electrical ratings (2A at 250V), operating temperature range (-30°C ~ 85°C), contact finish (tin), fastening mechanism (friction lock), and insulation material (polyamide/nylon). The DF11CZ-24DS-2V(22) is active in production with Tape & Reel packaging, providing superior availability compared to the obsolete DF11Z-24DS-2V(20). Mated stacking heights and mechanical dimensions are equivalent between these two DF11 series variants.

A3A-24DA-2SV(71) is an alternative substitute with active product status and extended operating temperature range (-55°C ~ 85°C). However, this part has reduced electrical ratings (1A current capacity versus 2A) and operates at 200VAC maximum voltage versus 250V. The A3A series uses gold contact finish and push-pull fastening instead of friction lock. This substitute is suitable only for applications where the lower current and voltage ratings are acceptable and where the extended low-temperature performance is required.

Both substitute parts maintain RoHS compliance and UL94 V-0 flammability certification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can the A3A-24DA-2SV(71) directly replace the DF11Z-24DS-2V(20) in all applications?

A: No. The A3A-24DA-2SV(71) has a reduced current rating of 1A compared to the original 2A specification. Applications requiring 2A current capacity must use the DF11CZ-24DS-2V(22) instead. Additionally, the fastening mechanism differs (push-pull versus friction lock), which may affect mechanical compatibility with mating connectors.

Q: What is the primary difference between the two substitute parts?

A: The DF11CZ-24DS-2V(22) maintains identical electrical and mechanical specifications to the original DF11Z-24DS-2V(20), differing only in packaging format (Tape & Reel versus bulk) and product status (active versus obsolete). The A3A-24DA-2SV(71) offers extended temperature range but reduced current and voltage ratings with different contact finish and fastening type.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the DF11CZ-24DS-2V(22) and A3A-24DA-2SV(71) are RoHS compliant with UL94 V-0 flammability ratings, matching the compliance profile of the original DF11Z-24DS-2V(20).

Q: What packaging formats are available for the substitute parts?

A: The DF11CZ-24DS-2V(22) is supplied in Tape & Reel (TR) format. The A3A-24DA-2SV(71) is supplied in Tube packaging. Neither substitute is available in the original bulk packaging format.

Q: Does the contact finish difference affect electrical performance?

A: Contact finish (tin versus gold) affects contact resistance and environmental durability. The tin finish of the DF11CZ-24DS-2V(22) matches the original part. The gold finish of the A3A-24DA-2SV(71) provides enhanced corrosion resistance but is not required for general-purpose applications matching the original specification.

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