Various Heights and Core Sizes, Heat Resistance, and Noise Resistance.
Suitable for Consumer, Industrial, and Automotive Equipment.

DF40 Series/DF40T Series Board-to-Board/Board-to-FPC Connector

The DF40/DF40T Series offers Board-to-Board and Board-to-FPC connectors with stacking heights from 1.5mm to 7.0mm in 0.5mm increments, available in up to 120pos.

Key Features:

Common plugs for stacking heights of 1.5-4mm and 4.5-7mm, allowing easy design changes by switching the receptacle.
Supports high-speed transmission in a compact size.
Expanded variations in height and core numbers to meet diverse design needs.

Widely used in consumer equipment like wearable devices and PCs, and in industrial equipment such as sensors, motors, and embedded PCs. A 125°C heat-resistant variant is available for automotive applications, including sensing devices, Advanced Driver Assistance Systems(ADAS), and infotainment systems.

Application Example

Consumer Equipment

Laptop PCs, Tablet PCs

Wearable Devices

Industrial Equipment

Industrial Sensors

Embedded PC

Motors

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In-Vehicle Equipment

Sensing Devices

Advanced Driving
Support Systems

Infotainment Systems

> DF40T Series Page

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Variation Table

Series	DF40		DF40T
Series	DF40	DF40GB	DF40T	DF40GT
Product Image
Connector Type	Receptacle/Plug	Receptacle/Plug	Receptacle/Plug	Receptacle/Plug
Operating Temperature	-55 to ＋85℃	-55 to ＋85℃	-55 to ＋125℃	-55 to ＋125℃
Shield	-	✓	-	✓
Positive Lock	-	-	-	-
Stacking Height (mm)	1.5 , 2.0 , 2.5 , 3.0 , 3.5 , 4.0	1.5 , 3.0 , 3.5	1.5 , 2.0 , 2.5, 3.0 , 3.5 , 4.0, 4.5 , 5.0 , 5.5, 6.0 , 6.5 , 7.0	1.5
No. of Pos.	10 , 12 , 20 , 24, 30 , 34 , 40 , 44, 50 , 60 , 70 , 80, 90 , 100 , 120	10 , 30 , 36 , 48 , 70	10 , 20 , 24 , 30 , 34, 40 , 50 , 60 , 80 , 120^*1	10^*2

^*1 The same positions as DF40 Series are available.

^*2 The same positions as DF40GB Series are available.

Stacking Height Vriations(DF40 Series)

Standard Type

Stacking Height	1.5mm	2mm	2.5mm	3mm	3.5mm	4mm
No. of Pos.	1.5mm	2mm	2.5mm	3mm	3.5mm	4mm
10	✓	-	✓	-	-	-
12	✓	✓	-	-	-	-
20	✓	✓	✓	-	✓	-
24	✓	✓	-	-	-	-
30	✓	✓	✓	✓	✓	-
34	✓	-	-	-	-	-
40	✓	✓	✓	✓	✓	-
44	-	-	-	✓	-	-
50	✓	✓	✓	✓	✓	✓
60	✓	✓	✓	✓	✓	✓
70	✓	✓	-	✓	-	-
80	✓	✓	-	✓	✓	✓
90	✓	-	-	✓	-	✓
100	✓	-	-	✓	-	-
120	✓	-	-	-	-	-

Type with Shield

Stacking Height	1.5mm	3mm	3.5mm
No. of Pos.
10	✓	-	-
30	✓	-	-
36	-	-	✓
48	✓	✓	-
70	-	✓	-

Stacking Height Variation(DF40T Series)

Stacking Height	1.5mm	2mm	2.5mm	3mm	3.5mm	4mm	4.5mm	5mm	5.5mm	6mm	6.5mm	7mm
No. of Pos.	1.5mm	2mm	2.5mm	3mm	3.5mm	4mm	4.5mm	5mm	5.5mm	6mm	6.5mm	7mm
10	✓	-	-	-	-	-	-	-	-	-	-	-
20	-	✓	✓	✓	✓	✓	-	-	-	-	-	-
24	-	✓	-	-	-	-	-	-	-	-	-	-
30	✓	✓	✓	✓	✓	✓	-	-	-	-	-	-
34	✓	-	-	-	-	-	-	-	-	-	-	-
40	✓	-	-	✓	✓	✓	-	-	-	-	-	-
50	✓	-	✓	-	-	✓	✓	-	✓	-	-	✓
60	-	-	-	-	-	-	-	-	-	-	-	-
80	-	✓	-	-	-	-	-	-	-	-	-	-
120	✓	-	-	-	-	-	-	-	-	-	-	-

Features

Flexible Design Changes for Sudden Height Adjustments

The plug is common for stacking heights of 1.5-4mm and 4.5-7mm. By changing the receptacle to the required height, you can easily make design changes.

Narrow Pitch for Space-Saving Design

With a small depth of 3.38mm and a narrow pitch of 0.4mm, the DF40/DF40T Series allows for compact device design, optimizing the use of limited space.

Space-Saving

Supports Latest High-Speed Transmission Standards

The DF40 Series supports USB4 Gen.2 (20Gbps), while the DF40T Series supports PCI Express 4.0 (16Gbps) for automotive applications. Select based on the high-speed transmission standards required.

High Contact Reliability and Stability

With an effective engagement length of 0.45mm, the connector ensures high connection reliability.

It also features a shock-absorbing rib to handle stress during impacts.

High Contact Reliability - Effective Mating Length 0.45mm

Shielded for Noise Reduction

To prevent noise interference from inside or outside the device, shielded options are available.

125°C Heat Resistance for Automotive Use (DF40T Series)

The DF40T Series withstands high temperatures up to 125°C, ideal for automotive environments, maintaining performance even in extreme heat.

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Hirose's Approach to Automotive Connerctors

※For high-reliability applications such as automotive, please contact a company representative for more information.

Smartphone et Portable

Appareils intelligents

PC & tablette

Autre équipement grand public

Voiture autonome

Groupe motopropulseur (pour l'automobile)

Infomation (pour l'automobile)

Voitures connectées

Éclairage automobile

Réseau électrique intelligent

Automatisation industrielle

Robots

Médical

Télécommunications / Réseaux

Centre de données (Data Centers)

Véhicules Ferroviaires/Utilitaires

Autres équipements industriels

Bureautique

DF40 Series/DF40T Series Board-to-Board/Board-to-FPC Connector