DF11GZ-28DP-2V(20) Equivalent & Substitute Parts

Part Overview

The DF11GZ-28DP-2V(20) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount applications with 28 positions at 2.00mm pitch. This shrouded 4-wall header connector operates across -30°C to 85°C with a 2A current rating and 250V voltage rating. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF11GZ-28DP-2V(20)
Manufacturer	Hirose Electric Co Ltd
Series	DF11
Connector Type	Header
Contact Type	Male Pin
Number of Positions	28
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Shrouding	Shrouded - 4 Wall
Termination	Solder
Operating Temperature	-30°C ~ 85°C
Current Rating	2A
Voltage Rating	250V
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters: connector type (header), contact type (male pin), number of positions (28), number of rows (2), pitch (2.00mm), row spacing (2.00mm), mounting type (surface mount), termination (solder), and material flammability rating (UL94 V-0).

The primary substitute is DF11CZ-28DP-2V(27) from Hirose Electric Co Ltd, which maintains identical electrical and mechanical specifications while offering active product status and improved packaging (Tape & Reel). This part differs only in packaging format and base product designation (DF11C vs DF11G).

Secondary substitutes are sourced from Samtec Inc. within the TMMH-114 series. These parts maintain core compatibility through identical pitch (2.00mm), position count (28), row configuration (2), surface mount mounting, and solder termination. However, they introduce design variations: unshrouded construction (versus shrouded 4-wall), square contact shape (versus circular), and phosphor bronze material (versus brass). Operating temperature ranges extend to -55°C to 125°C, exceeding the original specification. Contact finish options vary across multiple TMMH variants, providing flexibility for different application requirements.

Parameter Comparison

Parameter	DF11GZ-28DP-2V(20)	DF11CZ-28DP-2V(27)	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
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
Pitch - Mating	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm
Row Spacing - Mating	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	2.00mm	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
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
RoHS Status	RoHS Compliant	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
Operating Temperature Range	-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
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
Contact Finish - Mating	Tin	Tin	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin
Connector Type	Header	Header	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable
Fastening Type	Detent Lock	Detent Lock	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull

Engineering Selection Recommendations

For direct replacement in active production, DF11CZ-28DP-2V(27) is the primary recommendation. This Hirose part maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. The transition from Tape & Reel packaging to the original Tube packaging requires no design modification.

Samtec TMMH-114 series parts provide functional alternatives where design flexibility permits accommodation of mechanical differences. These parts are suitable for applications where unshrouded construction, square contact geometry, and extended operating temperature ranges (-55°C to 125°C) are acceptable. The cuttable header feature provides additional design flexibility for custom position configurations. All TMMH variants maintain ROHS3 compliance and active product status.

Selection between TMMH variants depends on contact finish requirements and board lock features. Parts designated with "EPC" suffix include board lock functionality. Contact finish options (F, G, L, S, T) provide varying gold plating thicknesses and post-finish specifications to match specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can DF11CZ-28DP-2V(27) directly replace DF11GZ-28DP-2V(20)?

A: Yes. Both parts share identical pitch (2.00mm), position count (28), row configuration (2), shrouding (4-wall), contact type (male pin), and operating temperature range (-30°C to 85°C). The primary difference is packaging format (Tape & Reel versus Tube) and product status (Active versus Obsolete).

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

A: Hirose DF11 parts feature shrouded 4-wall construction with circular brass contacts and detent lock fastening. Samtec TMMH-114 parts are unshrouded with square phosphor bronze contacts and push-pull fastening. Both maintain 2.00mm pitch and 28-position configuration. TMMH parts offer extended operating temperature (-55°C to 125°C) and cuttable header design.

Q: Are Samtec TMMH-114 parts suitable for applications requiring shrouded connectors?

A: No. TMMH-114 series connectors are unshrouded. Applications requiring shrouded construction must use DF11CZ-28DP-2V(27) or equivalent Hirose DF11 shrouded variants.

Q: What does the "cuttable" feature on Samtec TMMH-114 parts mean?

A: Cuttable headers allow custom position configuration by cutting the connector strip to the required length while maintaining 2.00mm pitch spacing. This feature is not available on fixed 28-position Hirose DF11 parts.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. DF11CZ-28DP-2V(27) is ROHS3 compliant. All Samtec TMMH-114 variants are ROHS3 compliant. All parts maintain UL94 V-0 material flammability rating.

Q: What packaging options are available for substitute parts?

A: DF11CZ-28DP-2V(27) is supplied in Tape & Reel format. Samtec TMMH-114 variants are supplied in Tube or standard packaging depending on specific part number designation. Packaging selection impacts handling and assembly processes.

Q: Can I use TMMH-114-04-T-DV-EP in applications requiring the full -30°C to 85°C temperature range?

A: TMMH-114-04-T-DV-EP operates across -55°C to 105°C, which encompasses the -30°C to 85°C requirement. This part is suitable for such applications.

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