DF11G-28DP-2V(50) Equivalent & Substitute Parts

Part Overview

The DF11G-28DP-2V(50) is a surface mount rectangular connector header manufactured by Hirose Electric Co Ltd, featuring 28 positions arranged in 2 rows with 0.079" (2.00mm) pitch. This shrouded 4-wall header connector is designed for board-to-board or cable applications with solder termination and detent lock fastening. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design requirements and component sourcing.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF11G-28DP-2V(50)
Manufacturer	Hirose Electric Co Ltd
Category	Rectangular Connectors
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
Operating Temperature	-30°C ~ 85°C
Material Flammability Rating	UL94 V-0
Current Rating	2A
Voltage Rating	250V
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the DF11G-28DP-2V(50) are selected from the Samtec TMMH-114 series based on the following critical parameters that determine functional equivalence:

Core Matching Parameters:

Pitch - Mating: 0.079" (2.00mm)
Number of Positions: 28
Number of Rows: 2
Row Spacing - Mating: 0.079" (2.00mm)
Contact Type: Male Pin
Mounting Type: Surface Mount
Termination: Solder
Style: Board to Board or Cable
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

Substitute Series Characteristics: All TMMH-114 variants are cuttable header strips with unshrouded design, featuring push-pull fastening instead of detent lock. The substitutes employ phosphor bronze contacts with liquid crystal polymer insulation, offering extended operating temperature range (-55°C ~ 125°C for gold-plated variants, -55°C ~ 105°C for tin-plated variants) compared to the original part. Contact finish options vary across the series, affecting contact finish thickness specifications.

Parameter Comparison

Parameter	DF11G-28DP-2V(50)	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	TMMH-114-04-T-DV-EPC
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)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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
Contact Shape	Circular	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Material	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	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)	Liquid Crystal Polymer (LCP)
Operating Temperature	-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	-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	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All TMMH-114 series variants listed are active products from Samtec Inc. and provide functional substitution for the obsolete DF11G-28DP-2V(50). Selection among the substitute options depends on specific contact finish and fastening requirements:

Contact Finish Variants:

F-series: 3.00µin (0.076µm) gold mating finish with tin post finish
G-series: 20.0µin (0.51µm) gold mating finish with gold post finish
L-series: 10.0µin (0.25µm) gold mating finish with tin post finish
S-series: 30.0µin (0.76µm) gold mating finish with tin post finish
T-series: Tin mating and post finish with reduced operating temperature range (-55°C ~ 105°C)

Fastening Options:

Standard variants (EP suffix): End shrouds and mating guide
Board lock variants (EPC suffix): Board lock, end shrouds, and mating guide

All substitute parts are ROHS3 compliant and maintain UL94 V-0 flammability rating. The extended operating temperature range (-55°C ~ 125°C for gold-plated variants) exceeds the original part specification. Samtec TMMH-114 series parts are available in active inventory with cuttable header strip design, offering flexibility for custom position configurations.

Frequently Asked Questions (FAQ)

Q: Can TMMH-114 series connectors directly replace DF11G-28DP-2V(50) in existing designs?

A: TMMH-114 variants match the critical electrical and mechanical parameters: 0.079" (2.00mm) pitch, 28 positions in 2 rows, surface mount solder termination, and male pin contact type. However, design changes exist: TMMH-114 parts feature unshrouded design with push-pull fastening versus the original shrouded 4-wall design with detent lock. PCB layout compatibility requires verification for shroud clearance and fastening mechanism differences.

Q: What is the difference between TMMH-114-04-F-DV-EP and TMMH-114-04-F-DV-EPC?

A: Both parts are identical except for fastening features. The EP variant includes end shrouds and mating guide. The EPC variant adds board lock functionality to the end shrouds and mating guide. Contact finish specifications remain unchanged between these variants.

Q: Why do some TMMH-114 variants have different operating temperature ranges?

A: T-series variants (TMMH-114-04-T-DV-EP and TMMH-114-04-T-DV-EPC) feature tin contact finish and operate at -55°C ~ 105°C. All other variants with gold contact finish operate at -55°C ~ 125°C. The original DF11G-28DP-2V(50) operates at -30°C ~ 85°C, which falls within all substitute part ranges.

Q: Are TMMH-114 parts available in different packaging options?

A: Most TMMH-114 variants are supplied in standard packaging. TMMH-114-04-G-DV-EP, TMMH-114-04-L-DV-EPC, and packaging specifications are provided in individual part data. Verify packaging requirements with component supplier for specific application needs.

Q: What compliance certifications apply to TMMH-114 substitute parts?

A: All TMMH-114 variants are ROHS3 compliant and maintain UL94 V-0 material flammability rating. ECCN classification is EAR99 and HTSUS code is 8536.69.4040 for all parts. Moisture sensitivity level is 1 (Unlimited) for all variants.

Q: How does contact material difference affect performance?

A: The original DF11G-28DP-2V(50) uses brass contacts, while TMMH-114 substitutes use phosphor bronze contacts. Phosphor bronze provides enhanced spring properties and contact reliability. Both materials are suitable for 2A current rating at 250V, with phosphor bronze offering superior performance characteristics in the specified operating conditions.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message