2mm Pitch, Positive Lock, Wire-to-Board Connector
DF51 Series
Secure Mating
Lock
Insertion force
curb
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Contact
Insertion force
curb
Matches the peak of insertion force,
provides clear click sound and tactile click
■Features
1. Positive lock provides clear tactile click
and secures relable connection
The locking mechanism delivers a clear tactile click,
which prevents incomplete mating. (Fig.1)
Fig.1
2. Wide variation
Each of Straight / Right angle / In-line configuration
equipped with single row and dual row for flexibile
design. Gold and Tin plating options support various
application needs.
Secure
side-locking design
Mating mark
3. Secure Side-locking design
Short depth straight type and low profile right angle
type are well suited for compact / thin equipment.
(Fig.3)
Resin
3mm Max.
Incorrect
mating
prevention
4. Prevents incorrect mating
Visually and mechanically polarized features prevent
reverse mating and incorrect mating between
different number of positions. (Fig.2)
Fig.2
5. Use common terminals and crimping
tools with DF11 Series
Wide applicable cable range : 22 to 30 AWG.
No extra
space required
for release
Height
6. Suitable for potting
Capable of being potted, up to 3mm.
■Applications
Office automation, Industrial machinery,
Industrial robots, Amusement equipment,
Medical equipment.
Small size
Short depth
Low profile
Reduces overall system size
Fig.3
In cases where the application will demand a high level of reliability, such as automotive,
please contact a company representative for further information.
2018.2
1
DF51 Series●2mm Pitch, Positive Lock, Wire-to-Board Connector
■Product
Specifications
Ratings
Current Rating
(Note 1)
Voltage Rating
Item
1. Insulation Resistance
2. Withstand Voltage
3. Contact Resistance
4. Vibration Resistance
22 to 26 AWG
2A
28 AWG
1A
AC / DC 250V
Specifications
30 AWG
0.5A
Operating temperature range -55 to +105ç (Note 2)
Operating humidity range
Storage temperature range
Storage humidity range
20 to 80% (Note 3)
-10 to +60ç (Note 4)
40 to 70% (Note 4)
Conditions
Measured at DC 500V
AC 650V is applied for 1 minute.
Measured at 1mA and no higher than 20mV
Frequency 10-55Hz, half amplitude 0.75mm,
10 times in each of the 3 directions
Accelerated velocity : 490 m/s
2
for 11ms, half-sine
wave in 3 directions, 3 times for each direction
Temperature : 40±2ç ; humidity : 90 to 95%,
left as it is for 96 hours
-55ç : 30 minutes
→
105ç : 30 minutes
5 cycles
Tin plated : 30 mating cycles,
Gold plated : 50 mating cycles
Flow : 260ç, 5 sec
Hand soldering : temperature of soldering
iron at 270ç for 3 seconds
No less than 1,000Mø
No flashover or breakdown
No more than 30mø
No electrical discontinuity of 1µs or greater
No electrical discontinuity of 1µs or greater
Contact resistance : no more than 30mø
Insulation resistance : no less than 500Mø
Contact resistance : no more than 20mø
Insulation resistance : no less than 1,000Mø
Contact resistance : no more than 20mø
The resin parts should withstand the temperature
and resist melting.
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
5. Shock Resistance
6. Moisture-resistance
7. Temperature cycles
8. Durability
9. Solder heat resistance
Note 1
：
Current rating of header is 2A.
Note 2
：
Includes temperature rise caused by current flow.
Note 3
：
Use without condensation on parts.
Note 4
：The
storage condition refers to long-term storage of the product on the shelf before assembly. Please use the operating
temperature for temporary storage such as pre-assembly and during shipping.
■Materials
/ Finish
Product
Header
Crimp socket
Socket contact
In-line plug
In-line plug contact
Part
Insulator
Contact
Insulator
Contact
Insulator
Contact
Material
PBT (glass-reinforced)
Brass
PBT (glass-reinforced)
Phosphor copper
PBT (glass-reinforced)
Phosphor copper
Finish
Black
Tin plated or Gold plated
Black
Tin plated or Gold plated
Black
Tin plated or Gold plated
Specification
UL94V-0
̶̶
UL94V-0
̶̶
UL94V-0
̶̶
■Product
Number Structure
Refer to the chart below when determining the product specifications from the product number.
Please select from the product numbers listed in this catalog when placing orders.
●Connector
DF51 # -
*
P - 2 DSA
❶
❷
❸ ❹
❺
❻
●Crimp
contact
DF11 - EP 2428 PCF A
❼
½
❾
❼Contact
Type
EP In-line plug
：
½Applicable
Conductor
22
：22
AWG
2428
：24
to 28 AWG
30
：30
AWG
❾Packaging
Style
SCF
：
Socket contacts·Reel
SC
：
Socket contacts·Pack
PCF
：
In-line plug contacts·Reel
PC
：
In-line plug contacts·Pack
Plating Specifications
Blank
Tin plated
：
Ａ ：
Gold plated
❶Series
name：DF51
❷Form
Type
Blank
：Guide-boss
type
A
：Without
guide-boss
❸Number
of Contacts
Single-row
：
2 to 6
Double-row
：
4 to 30
❹Connector
Type
P Single-row pin header
：
S Single-row crimp socket
：
DP
：
Double-row pin header
DS
：
Double-row crimp socket
❺Contact
Pitch
：
2mm
❻Type
of Housing
DSA
：
Straight header
DS Right angle header
：
C
：
Crimp socket
2
DF51 Series●2mm Pitch, Positive Lock, Wire-to-Board Connector
■Diagram
of Connector Mating Combinations
●Single-row
Crimp socket
DF51-
＊
S-2C
Socket contact
DF11-22SC(F)(A)
DF11-2428SC(F)(A)
DF11-30SC(F)(A)
Straight header
DF51A-
＊
P-2DSA
Right angle header
DF51(A)-
＊
P-2DS
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
In-line plug
DF51-
＊
EP-2C
In-line plug contact
DF11-EP2428PC(F)(A)
●Double-row
Crimp socket
Socket contact
DF11-22SC(F)(A)
DF51-
＊
DS-2C DF11-2428SC(F)(A)
DF11-30SC(F)(A)
Straight header
DF51A-
＊
DP-2DSA
Right angle header
DF51(A)-
＊
DP-2DS
In-line plug
DF51-
＊
DEP-2C
In-line plug contact
DF11-EP2428PC(F)(A)
3
DF51 Series●2mm Pitch, Positive Lock, Wire-to-Board Connector
■Single-row
Straight Header
A
B
P=2
1.8
Recommended PCB Layout (t=1.6mm)
Cavity No.
A
B±0.1
P=2±0.05
+
0
0 .1
HRS mark
HRS mark
No. of Contacts indicator
Contact No.1
Polarity
mark
5.25
4.4
8.4
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
5HS1
＊
Lot No.
□0.5
【Specification
number】
＊、＊
‐ （ ＊）
＊
Blank
：Tin
plated
（01）
：Gold
plated
Part No.
DF51A-2P-2DSA(**)
DF51A-3P-2DSA(**)
DF51A-4P-2DSA(**)
DF51A-5P-2DSA(**)
DF51A-6P-2DSA(**)
HRS No.
543-5105-0-**
543-5106-0-**
543-5107-0-**
543-5108-0-**
543-5109-0-**
3
No. of Contacts
2
3
4
5
6
A
10.8
12.8
14.8
16.8
18.8
B
2
4
6
8
10
Note : Bag packaging (100pcs/pack). Order by number of packs.
■Double-row
Straight Header
2.65
A
B
P=2
Contact No.2
Cavity No.
2
A
HRS mark
A
HRS mark
No. of Contacts indicator
Contact No.1
Polarity
mark
7.3
8.4
Recommended PCB Layout (t=1.6mm)
B±0.1
P=2±0.05
5HS1
＊
Ø0
.8
.1
+00
Lot No.
□0.5
3
【Specification
number】
＊、＊
‐ （ ＊）
＊
Blank
：Tin
plated
（01）
：Gold
plated
Part No.
DF51A-4DP-2DSA(**)
DF51A-6DP-2DSA(**)
DF51A-8DP-2DSA(**)
DF51A-10DP-2DSA(**)
DF51A-12DP-2DSA(**)
DF51A-14DP-2DSA(**)
DF51A-16DP-2DSA(**)
No. of
Contacts A
543-5015-0-** 4 11.1
543-5044-0-** 6 13.1
543-5045-0-** 8 15.1
543-5046-0-** 10 17.1
543-5047-0-** 12 19.1
543-5048-0-** 14 21.1
543-5049-0-** 16 23.1
HRS No.
2±0.05
B
Part No.
DF51A-18DP-2DSA(**)
DF51A-20DP-2DSA(**)
DF51A-22DP-2DSA(**)
DF51A-24DP-2DSA(**)
DF51A-26DP-2DSA(**)
DF51A-28DP-2DSA(**)
DF51A-30DP-2DSA(**)
2
4
6
8
10
12
14
No. of
Contacts A
543-5050-0-** 18 25.1
543-5051-0-** 20 27.1
543-5052-0-** 22 29.1
543-5053-0-** 24 31.1
543-5054-0-** 26 33.1
543-5055-0-** 28 35.1
543-5056-0-** 30 37.1
HRS No.
Ø0
.8
B
16
18
20
22
24
26
28
Note : Bag packaging (100pcs/pack). Order by number of packs.
4
DF51 Series●2mm Pitch, Positive Lock, Wire-to-Board Connector
■Single-row
Right angle Header
Lot No.
No. of Contacts
indicator
5HS1
12
HRS mark
A
B
P=2
HRS mark
1.9
4.5
3
1.6
□0.5
A
Polarity mark
Contact No.1
Cavity No.
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Recommended PCB Layout (t=1.6mm)
B±0.1
P=2±0.05
.
Ø0
8
.1
+0 0
※
Above drawing is guide-boss type.
2.7±0.1
2.7±0.1
Ø1.7
C±0.1
+0.1
0
Part No.
DF51-2P-2DS(**)
DF51-3P-2DS(**)
DF51A-4P-2DS(**)
DF51A-5P-2DS(**)
DF51A-6P-2DS(**)
HRS No.
Guide-boss
With boss
No. of
Contacts
2
3
4
5
6
Under
developing
With boss
Without boss
Without boss
Without boss
Note : Please place orders in full lot quantities.
＊
C
9.45
【Specification
number】
＊、 ＊）
‐ （＊
＊
（20）
：Tin
plated, tray packaging
（50）
：Gold
plated, tray packaging
A
10.8
12.8
14.8
16.8
18.8
B
C
2
4
6
8
10
6
8
̶̶
̶̶
̶̶
Quantity per
package
243
207
171
153
135
5
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