DF11-28DP-2V(57) Equivalent & Substitute Parts

Part Overview

The DF11-28DP-2V(57) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount applications with 28 positions arranged in 2 rows at 0.079" (2.00mm) pitch. This shrouded 4-wall header connector features solder termination and detent lock fastening, rated for 2A at 250V across an operating temperature range of -30°C to 85°C.

The DF11-28DP-2V(57) is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this connector footprint and electrical interface.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	28
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Shrouding	Shrouded - 4 Wall
Contact Material	Brass
Insulation Material	Polyamide (PA), Nylon
Current Rating	2A
Voltage Rating	250V
Operating Temperature	-30°C ~ 85°C
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the DF11-28DP-2V(57) is determined by strict alignment of core electrical and mechanical parameters: connector type (header), contact type (male pin), mating pitch (0.079" / 2.00mm), number of positions (28), row configuration (2 rows), row spacing (0.079" / 2.00mm), mounting type (surface mount), termination method (solder), and material flammability rating (UL94 V-0).

The primary direct substitute is DF11C-28DP-2V(57) from Hirose Electric Co Ltd, which maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. This part differs only in packaging (Tape & Reel) and feature set (Pick and Place vs. Solder Retention).

Secondary substitutes are sourced from Samtec Inc. under the TMMH-114 series. These parts maintain compatibility across mating pitch (0.079" / 2.00mm), position count (28), row configuration (2 rows), row spacing (0.079" / 2.00mm), mounting type (surface mount), termination (solder), and flammability rating (UL94 V-0). TMMH variants differ in shrouding configuration (unshrouded vs. shrouded), contact shape (square vs. circular), contact material (phosphor bronze vs. brass), insulation material (LCP vs. polyamide), fastening type (push-pull vs. detent lock), and contact finish specifications. These differences require design validation for specific application requirements.

Parameter Comparison

Parameter	DF11-28DP-2V(57)	DF11C-28DP-2V(57)	TMMH-114-04-F-DV-EP	TMMH-114-04-F-DV-EPC	TMMH-114-04-G-DV-EP	TMMH-114-04-G-DV-EPC	TMMH-114-04-L-DV-EP	TMMH-114-04-L-DV-EPC	TMMH-114-04-S-DV-EP	TMMH-114-04-S-DV-EPC	TMMH-114-04-T-DV-EP
Manufacturer	Hirose	Hirose	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec
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
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)
Number of Positions	28	28	28	28	28	28	28	28	28	28	28
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
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	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Circular	Circular	Square	Square	Square	Square	Square	Square	Square	Square	Square
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)
Fastening Type	Detent Lock	Detent Lock	Push-Pull	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	Gold	Gold	Tin
Operating Temperature	-30°C ~ 85°C	-30°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 ~ 125°C	-55°C ~ 105°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	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

The DF11C-28DP-2V(57) from Hirose Electric Co Ltd is the primary recommended substitute. This part maintains complete electrical and mechanical compatibility with the obsolete DF11-28DP-2V(57), offering identical mating pitch, position count, row configuration, voltage and current ratings, operating temperature range, and flammability certification. The DF11C-28DP-2V(57) carries active product status and RoHS compliance, ensuring long-term supply availability and regulatory alignment.

For applications requiring extended operating temperature range (-55°C to 125°C) or alternative fastening mechanisms, the Samtec TMMH-114 series provides functional alternatives. These parts maintain core electrical compatibility and flammability certification but introduce design differences in shrouding (unshrouded), contact geometry (square vs. circular), contact material (phosphor bronze vs. brass), insulation material (LCP vs. polyamide), and fastening type (push-pull vs. detent lock). Selection from the TMMH-114 series requires design validation to confirm mechanical fit, mating force characteristics, and connector retention behavior.

All substitute options carry active product status and RoHS compliance, supporting modern supply chain requirements and regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can DF11C-28DP-2V(57) be used as a direct replacement for DF11-28DP-2V(57)?

A: Yes. The DF11C-28DP-2V(57) maintains identical electrical and mechanical specifications including mating pitch (0.079" / 2.00mm), position count (28), row configuration (2 rows), voltage rating (250V), current rating (2A), operating temperature range (-30°C to 85°C), and flammability rating (UL94 V-0). The primary differences are packaging format (Tape & Reel vs. bulk) and feature set (Pick and Place vs. Solder Retention). No design changes are required.

Q: What are the key differences between Hirose DF11 and Samtec TMMH-114 connectors?

A: Hirose DF11 connectors feature shrouded 4-wall design with circular brass contacts and detent lock fastening. Samtec TMMH-114 connectors are unshrouded with square phosphor bronze contacts and push-pull fastening. Samtec parts offer extended operating temperature range (-55°C to 125°C vs. -30°C to 85°C) and LCP insulation material. These differences require mechanical validation for specific applications.

Q: Are Samtec TMMH-114 parts compatible with existing DF11-28DP-2V(57) designs?

A: Samtec TMMH-114 parts maintain compatibility for mating pitch (0.079" / 2.00mm), position count (28), row spacing (0.079" / 2.00mm), and solder termination. However, differences in shrouding configuration, contact shape, fastening mechanism, and insulation material require design validation. PCB footprint compatibility must be confirmed, and mating force and retention characteristics must be evaluated for the specific application.

Q: What packaging options are available for substitute parts?

A: DF11C-28DP-2V(57) is supplied in Tape & Reel (TR) packaging. Samtec TMMH-114 variants are available in Tube or bulk packaging depending on part number suffix. Packaging selection affects handling, storage, and assembly process compatibility.

Q: Do all substitute parts meet the same compliance standards?

A: DF11C-28DP-2V(57) and all Samtec TMMH-114 variants carry RoHS compliance (RoHS Compliant or ROHS3 Compliant) and UL94 V-0 flammability rating. All parts have Moisture Sensitivity Level 1 (Unlimited). Regulatory compliance is consistent across all options.

Q: What is the difference between TMMH-114 variants with different letter suffixes (F, G, L, S, T)?

A: Letter suffixes indicate contact finish specifications. F, G, L, and S variants feature gold mating contact finish with varying thickness (3.00µin, 20.0µin, 10.0µin, and 30.0µin respectively). T variant features tin mating contact finish. Post contact finish varies between tin and gold depending on variant. Selection depends on corrosion resistance and electrical performance requirements.

Q: Can TMMH-114 connectors be cut to custom lengths?

A: Yes. TMMH-114 connectors are specified as "cuttable" type, allowing custom length configuration. This feature is not available with DF11 series connectors.

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