Part: DF40C-100DS-0.4V(51) — Hirose Electric Co., Ltd.

Type: Board-to-Board/FPC-to-Board Connector

Description: 0.4mm pitch, double-row, straight SMT receptacle connector with 100 positions, 1.5mm stacking height, and gold-plated phosphorous bronze contacts, designed for high-density mounting and supporting USB4 Gen.2 (20Gbps) transmission for 1.5mm height types.

Operating Conditions:

• Operating temperature: -55 to +85°C
• Operating humidity range: 20 to 80%

Absolute Maximum Ratings:

• Max storage temperature: +60°C

Key Specs:

• Rated Current: 0.3A (0.25A for 120 pos.)
• Rated Voltage: 50V AC/DC
• Insulation Resistance: 50MΩ Min. (at 100V DC)
• Withstanding Voltage: 150V AC for 1 min.
• Contact Resistance: 90mΩ Max. (at 20mV AC, 1kHz, 1mA)
• Effective Mating Length: 0.45mm
• Mating Self Alignment Range: ±0.33mm in Single XY directions

Features:

• High Density Mounting with 3.38mm depth
• Wide Stacking Height Variations (1.5, 2.0, 2.5, 3.0, 3.5, 4.0mm)
• High Contact Reliability with click feeling and lock design
• Robust Design with Shock Absorbing Ribs
• Supports USB4 Gen.2 (20Gbps) transmission (H=1.5mm type)
• Solder Wicking Prevention
• Splash-Resistant Design Protects Contacts
• Compliant with RoHS
• Shielded type available for high-speed signal support and noise prevention

Applications:

Package:

• Embossed Packaging (5,000pcs per reel for (51) suffix, 1,000pcs per reel for (58) suffix)

DF40C-100DS-0.4V(51) Pinout

Package Type: Double Row Receptacle (DS), 100 positions, 0.4mm pitch, 1.5mm stacking height

Pin Number	Pin Name	Type	Description
1	Signal	I/O	Contact position 1
2	Signal	I/O	Contact position 2
3	Signal	I/O	Contact position 3
4	Signal	I/O	Contact position 4
5	Signal	I/O	Contact position 5
6	Signal	I/O	Contact position 6
7	Signal	I/O	Contact position 7
8	Signal	I/O	Contact position 8
9	Signal	I/O	Contact position 9
10	Signal	I/O	Contact position 10
11	Signal	I/O	Contact position 11
12	Signal	I/O	Contact position 12
13	Signal	I/O	Contact position 13
14	Signal	I/O	Contact position 14
15	Signal	I/O	Contact position 15
16	Signal	I/O	Contact position 16
17	Signal	I/O	Contact position 17
18	Signal	I/O	Contact position 18
19	Signal	I/O	Contact position 19
20	Signal	I/O	Contact position 20
21	Signal	I/O	Contact position 21
22	Signal	I/O	Contact position 22
23	Signal	I/O	Contact position 23
24	Signal	I/O	Contact position 24
25	Signal	I/O	Contact position 25
26	Signal	I/O	Contact position 26
27	Signal	I/O	Contact position 27
28	Signal	I/O	Contact position 28
29	Signal	I/O	Contact position 29
30	Signal	I/O	Contact position 30
31	Signal	I/O	Contact position 31
32	Signal	I/O	Contact position 32
33	Signal	I/O	Contact position 33
34	Signal	I/O	Contact position 34
35	Signal	I/O	Contact position 35
36	Signal	I/O	Contact position 36
37	Signal	I/O	Contact position 37
38	Signal	I/O	Contact position 38
39	Signal	I/O	Contact position 39
40	Signal	I/O	Contact position 40
41	Signal	I/O	Contact position 41
42	Signal	I/O	Contact position 42
43	Signal	I/O	Contact position 43
44	Signal	I/O	Contact position 44
45	Signal	I/O	Contact position 45
46	Signal	I/O	Contact position 46
47	Signal	I/O	Contact position 47
48	Signal	I/O	Contact position 48
49	Signal	I/O	Contact position 49
50	Signal	I/O	Contact position 50
51	Signal	I/O	Contact position 51
52	Signal	I/O	Contact position 52
53	Signal	I/O	Contact position 53
54	Signal	I/O	Contact position 54
55	Signal	I/O	Contact position 55
56	Signal	I/O	Contact position 56
57	Signal	I/O	Contact position 57
58	Signal	I/O	Contact position 58
59	Signal	I/O	Contact position 59
60	Signal	I/O	Contact position 60
61	Signal	I/O	Contact position 61
62	Signal	I/O	Contact position 62
63	Signal	I/O	Contact position 63
64	Signal	I/O	Contact position 64
65	Signal	I/O	Contact position 65
66	Signal	I/O	Contact position 66
67	Signal	I/O	Contact position 67
68	Signal	I/O	Contact position 68
69	Signal	I/O	Contact position 69
70	Signal	I/O	Contact position 70
71	Signal	I/O	Contact position 71
72	Signal	I/O	Contact position 72
73	Signal	I/O	Contact position 73
74	Signal	I/O	Contact position 74
75	Signal	I/O	Contact position 75
76	Signal	I/O	Contact position 76
77	Signal	I/O	Contact position 77
78	Signal	I/O	Contact position 78
79	Signal	I/O	Contact position 79
80	Signal	I/O	Contact position 80
81	Signal	I/O	Contact position 81
82	Signal	I/O	Contact position 82
83	Signal	I/O	Contact position 83
84	Signal	I/O	Contact position 84
85	Signal	I/O	Contact position 85
86	Signal	I/O	Contact position 86
87	Signal	I/O	Contact position 87
88	Signal	I/O	Contact position 88
89	Signal	I/O	Contact position 89
90	Signal	I/O	Contact position 90
91	Signal	I/O	Contact position 91
92	Signal	I/O	Contact position 92
93	Signal	I/O	Contact position 93
94	Signal	I/O	Contact position 94
95	Signal	I/O	Contact position 95
96	Signal	I/O	Contact position 96
97	Signal	I/O	Contact position 97
98	Signal	I/O	Contact position 98
99	Signal	I/O	Contact position 99
100	Signal	I/O	Contact position 100

Notes

• DF40C-100DS-0.4V(51) is a non-shielded, double-row receptacle with 100 signal contacts arranged in two rows (50 per row).
• No polarity: This connector has no polarity; contacts are interchangeable.
• Contact pitch: 0.4mm between adjacent contacts.
• Stacking height: 1.5mm (standard type).
• No retention tab: DF40C variant has no retention tab (C = No Retention Tab).
• Packaging: (51) denotes embossed tape packaging, 5,000 pieces per reel.
• Contact material: Phosphorous bronze with gold plating.
• Housing material: LCP (Liquid Crystal Polymer), UL94V-0 rated, black color.
• Rated current: 0.3A per contact.
• Rated voltage: 50V AC/DC.
• Contact resistance: 90mΩ maximum (measured at 20mV AC, 1kHz, 1mA).
• Mating durability: 30 mating cycles.
• All 100 contacts are signal contacts; there are no dedicated ground pins in the standard (non-shielded) variant.

MPN	Package	Temperature Range	Packing
DF40B-10DS-0.4V(51)	Straight SMT	-55 to +85°C	Embossed Packaging (5,000pcs per reel)
DF40B-10DS-0.4V(58)	Straight SMT	-55 to +85°C	Embossed Packaging (1,000pcs per reel)
DF40B-12DS-0.4V(51)	Straight S