High Life Cycle Interface Connectors
3800 Series
Hirose's Unique Contact Structure with High Durability
1) Minimum contact shaving due to a rolled surface on the bellows contact side
2) The spring contact design prevents buckling.
3) Stable contact design provides the support needed to endure 20,000 mating cycles
Provides ideal long term contact force.
Rolled surface
Bellows contact
Male contact
Housing
Plug
Plug
Receptacle
Receptacle
Female contact
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Fig.q
■Features
1. 20,000 mating/unmating life cycle with
unique Hirose contact structure.
2. The structure utilizes a metal shell that
is 0.35 mm thick. The shell is designed
t o c ov e r t h e h o u s i n g a n d p ro t e c t
against rough mechanical operation.
The addition of reinforced metal fittings increases
t h e P C B r e t e n t i o n fo r c e a n d a l l o w s t h e s e
connectors to be mounted with commercially
available screws for the cradle type. (Fig.w)
◆Receptacle
Robust Structure
1) The 0.35 mm thick metal shell protects the housing.
◆Plug
◆Cradle
plug
2) Protected Guide Posts
The metal shell on the cradle provides
protection and cover to the guide posts
on the cradle plug.
Guide Post
3) Optional screw fastening
The cradle can be secured to the PCB with
the use of commercially available screws (M2
x 0.4 x 5) to provide additional retention force.
4) Reinforcing metal fittings
Solder is allowed to flow into the through hole and onto the
reinforcing metal fittings to increase the PCB retention force.
Commercial screw (optional)
3. Sequential mating, that features a 0.5
mm range (Fig.e)
4. Its small size and light weight design
are helpful for use in compact devices
5. Simple mating process with a tactile
cl i ck t h a t a s s u r e s p ro p e r m a t i n g
completion.
The pushbutton locking system leads to a simplified
mating process that delivers a tactile click to ensure
that the mating process was correctly completed.
Fig.w
Sequential Mating Structure
The No.1 and 18 contacts are the first contacts to mate, with the remaining contacts mating thereafter.
[Effective Mating Length]
1 & 18 Contact: 1.4 mm
2 to 17 Contact: 0.9 mm
6. One piece plug cover
The assembly of this connector is simplified due to
its one-piece plug cover.
Contact
No. 1
5m
m
0.
7. RoHS compliant
All materials and substances used to produce this
product comply with the RoHS free standards.
Contact No. 18
Fig.e
In cases where the application will demand a high level of reliability, such as automotive,
please contact a company representative for further information.
2016.7w
1
3800 Series●High Life Cycle Interface Connectors
■Product
Specifications
Ratings
Items
1. Insulation
Resistance
2. Withstanding
Voltage
3. Contact
Resistance
4. Durability
Rated Current
No.2
∼
N0.17
⇒
0.5A
No.1, No.18
⇒
1.5A
Specifications
Minimum of 1,000Mø
No flashover or breakdown
Maximum of 70mø
1) Maximum of 20mø of deflection from its initial state
2) No damaged, cracked or loose parts
Rated Voltage
Operating Temperature Range
Conditions
Measured with DC 250V.
Apply 350V AC for 1 minute
Measured with 100mA (DC or 1,000 Hz) or
below
20,000 mating cycles
AC 125V
−40
∼
+85℃
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
■Materials
/ Finish
●Receptacle
Component
Housing
Contact
Dust cover
Metal shell
Materials
Polyamide resin
Copper alloy
Polyamide resin
Stainless Steel
Color/Finish
Black
Selective gold plating
Black
Tin plating
Remarks
UL94V-0
−
UL94V-0
−
●Cradle
Type Plug
Component
Housing
Contact
Metal shell
Fastening screw metal
Materials
Polyamide resin
Copper alloy
Stainless steel
Steel
Color/Finish
Black
Selective gold plating
Tin plating
Nickel under plating
Remarks
UL94V-0
−
−
−
●Plug
Component
Housing
Contact
Cover
Metal shell
Materials
Polyamide resin
Copper alloy
Polycarbonate
Stainless steel
Color/Finish
Black
Selective gold plating
Black
−
Remarks
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.
38 40 - B - 18 P
❶
❷
❸
❹
❺
❸
Mating Key Type
❹
No. of Contacts
❺
Type of Connector
P : Plug
S : Receptacle
❶
Series Number : 38
❷
Termination style
40 : Soldering Type
60 : Right Angle SMT Type
80 : Cradle Type SMT Type
2
3800 Series●High Life Cycle Interface Connectors
BApplicable
Cable
Cross Section
Conductor Size
Outer Diameter of Insulation
Wire Size
UL STYLE OF APPLICABLE CABLE：20620、
20276
Configuration
Outer Diameter
0.08mm
2
7
/
0.127mm
Ø
0.38mm
Ø
0.58mm
28 AWG
BRecommended
PCB Layout
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
3860-B-18S PCB Dimensions (Reference)
Mounting
Surface
20.55
P=0.8
φ
1
.3
（
T
h
(t＝1.8 MAX)
22.25
rou
gh
Ho
le
）
B
Receptacle
Reel packaging dimensions (JIS C 0806-3)
Embossed Carrier Tape Dimensions
Unreeling Direction
16
1.75
1.3
4.3
4
2
gh Hole
）
(0.4)
Plastic Reel Package Dimensions
Black
(φ380)
Unreeling Direction
(30)
(
φ
13
)
0.5
3.5
PCB Edge
3880-B-18P PCB Dimensions (Reference)
19.81
13.6
No.18
No.2
φ
1.6 T
（
hrou
le
）
Ho
gh
u
hro
（
T
.9
1
2x
φ
40.4
44
3
3860-B-18S
Ａ
2x
φ
2
(7.5) (49.5)
600 pieces per reel
Vacuum pick-up area dimension
3860-B-18S
21
26
BRecommended
Reflow Temperature Profile
Cycle: Maximum of 2 reflow cycles
Maximum of 10
seconds
2.3
1.2
（
1.5
2x
φ
e
）
Hol
2.7
No.17
No.1
5.2
5.5
.2 Ho
（
le
）
250℃
Temperature
220℃
60 ±10
seconds
150−180℃
90 ±30 seconds
Time
Please check the mounting conditions before use, conditions such as solder paste types, manufacturer, PCB size and any other
soldering materials may alter the performance of such materials.
®
2-6-3,Nakagawa Chuoh,Tsuzuki-Ku,Yokohama-Shi 224-8540,JAPAN
TEL: +81-45-620-3526 Fax: +81-45-591-3726
http://www.hirose.com
http://www.hirose-connectors.com
4
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The characteristics and the specifications contained herein are for reference purpose. Please refer to the latest customer drawings prior to use.
The contents of this catalog are current as of date of 07/2016. Contents are subject to change without notice for the purpose of improvements.
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