2012/02R5
Miniature RF Coaxial Connector
MHF® Series
Easy Cable termination by “ i-Fit
®
Technology
Halogen - Free*1
RoHS Compliance
IEEE802.11a/b/g/n, WiMAX,
Bluetooth, ZigBee and
MIMO (Multiple input and multiple output)
1・・・・・・ [ Halogen-Free ]
Definition of Halogen-free : IEC 61249-2-21
Bromine < 900ppm
Chlorine < 900ppm
Bromine + Chlorine < 1,500ppm
MHF® Series RF Micro coaxial connector
Major Application
Wireless LAN Antenna
Mobile Phone
Smart Phone
Note Book PC
Gaming Device
Access Point
Specifications
Key Features
SMT Receptacle and Cable plug Connector
Super low profile : 1.2mm to 2.5mm MAX. Mating profile
Applicable Cable :
φ0.64mm / 0.81mm / 0.95mm / 1.13mm / 1.32mm / 1.37mm and 1.80mm Coaxial Cable
High productivity and stable performance
Solderless and easy cable termination by “ i-Fit®technology
Applicable Technology :
IEEE802.11 a/b/g/n, WiMAX, Zigbee, Bluetooth, MIMO, etc.
Frequency Range : DC to 6GHz ( V.S.W.R. : 1.3MAX at 0.1~3GHz, 1.5MAX at 3~6GHz )
Characteristic Impedance : 50 ohm ( Nominal )
Temperature : -40 to +90
Rated Voltage : AC 60V
Contact Resistance : 20m ohm MAX. ( Signal ) and 10m ohm MAX. ( Ground )
Withstand Voltage : AC 200V
Insulation Resistance : 500M ohm MIN. / DC 100V
MHF®
MHF®ll
MHF®lll
MHF®-A13
MHF®4
MHF®4 SMT
i-Fit® : One action, instant termination without soldering process.
Stable electric performance by special assembling machine.
i-Fit® Termination mechanism】 
Product Mechanism
Jacket
Outer Conductor
Center Conductor
Dielectric Core
i-Fit® Connection
Crimping
Contact Center Conductor
i-Fit® Cross-section
PLUG Ground Contact
PLUG Signal Contact
PLUG Insulator
RECE Signal Contact
RECE Insulator
RECE
Ground Contact
1.2 ~ 2.5
i-Fit® PATENT NO.
JAPAN PAT.4148339
U.S.A. PAT.6,790,082
mm
Product name
Mating
profile PLUG P/N RECE P/N Applicable Cable gauge
2.5mm
(MAX.)
2.1mm
(MAX.)
MHF®
MHF® ll
Plating Signal : Gold / Ground : Silver
AWG32 (φ1.32mm)
AWG32 (φ1.13mm)
MHF® Series Product overview
Product name
Mating
profile PLUG P/N RECE P/N Applicable Cable Gauge
2.5mm
(MAX.)
2.1mm
(MAX.)
1.6mm
(MAX.)
1.45mm
(MAX.)
1.2mm
(MAX.)
MHF®
MHF® ll
MHF® lll
MHF®-A13
MHF® 4
MHF®4 SMT Plug
20278-1*2R-**
(4pad)
(3pad)
20279-001E-**
20441-001E-01
Plating Signal : Gold / Ground : Gold
20311-011R-**
20312-011R-**
(3pad)
20314-001E-01
20308-1*2R-**
20351-1*2R-37
20369-001E
20462-001E
20448-001R-081
20449-001E
20428-001R 20429-001E
20367-001R
AWG30 (φ1.80mm)
AWG32 (φ1.32mm)
AWG32 (φ1.13mm)
AWG36 (φ0.81mm)
AWG30 (φ1.37mm)
AWG33 (φ0.95mm)
AWG36 (φ0.81mm)
AWG33 (φ0.95mm)
AWG36 (φ0.81mm)
AWG36 (φ0.64 / 0.81mm)
AWG32 (φ1.13mm)
AWG36 (φ0.81mm)
FPC
MHF® Plug Cable Assembly
Mating Profile : 2.5mm MAX.
Applicable for various cable gauge
Material and Finish
Part Number
20278-1 * 2 R- * *
Ground Contact : Au Plating Ground Contact : Ag Plating
①③
20308-1 * 2 R- * *
①③
Applicable Cable gauge
IPX
13
20278-1*2R-08 20278-1*2R-13 20278-1*2R-32 20278-1*2R-18
- 20308-1*2R-13 20308-1*2R-32 -
for AWG#36 for AWG#32 for AWG#32 for AWG#30
Single Braided Shield Single Braided Shield Double Braided Shield Single Braided Shield
Parts Material Plating / Color Note
HOUSING PBT UL94V-0 NATURAL or BLACK Only Au 08, Au 18 is NATURAL
CONTACT COPPER ALLOY Au
GROUND CONTACT COPPER ALLOY Au or Ag
Braided Shield of Outer Conductor
Part No. (Au)
Part No. (Ag)
Applicable Cable
Nominal Dimension
Inner Conductor
Silver Plating
Dielectric Core
Outer Conductor
Silver or Tin Plating
Jacket
AWG#36 (7/0.05)
φ0.81Nominal
(φ0.65)
φ0.4 Nominal
2.09
1.25
1.16±0.1
±0.1
±0.1
AWG#32 (7/0.08)
φ1.13
Nominal
(φ0.93)
φ0.68
Nominal
2.09
1.25
1.16±0.1
±0.1
±0.1
2.09
1.25
1.16±0.1
±0.1
±0.1
2.09
1.25
1.16±0.1
±0.1
±0.1
AWG#30 (7/0.102)
φ1.8Nominal
(φ1.35)
φ0.84Nominal
AWG#32 (7/0.08)
φ1.32 Nominal
(φ1.12)
φ0.66 Nominal
RG178 B/U
Plug
P/N 20278-1*2R-08
P/N 20278-1*2R-13 P/N 20308-1*2R-13
P/N 20278-1*2R-32 P/N 20308-1*2R-32
Receptacle
P/N 20279-001E-01 P/N 20314-001E-01
P/N 20441-001E-01
2.5 MAX
4.0
(4.7 20278-1*2R-18)
MATED VIEW
2.62
3.0
4.0
2.1
2.62
3.0
4.7
2.1
IPX
18
0
1
R
Tool
Packing
Applicable Cable Size
for Hand Tool ( with Notch )
for Semi-Auto ( without Notch )
Reel 1reel : 2,000pcs
P/N 20278 : 08, 13, 32, 18
P/N 20308 : 13, 32
-
2012/11R6
MHF® Receptacle
Part Number
20279-001 E-
Ground Contact : Au Plating
20314-001 E- 01
Ground Contact : Ag Plating
X X
Material and Finish
(0.6)
0.25
(3.1)
2.6
1.8
0.25
0.6
2.6
3.0
2.1
φ2.0
φ0.5
0.2
0.35
1.25
Ground
Contact
Housing Contact
Sect.X-X
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
4.0
1.0
1.9
1.05
1.0
2.2
Cut out Prohibition Area
RECOMMENDED FOOTPRINT PATTERN
3pad type
Part Number
20441-001 E- 01
Packing : Emboss Tape
1reel : 5,000pcs
Ground Contact : Au Plating
4pad type
A
A
RECOMMENDED FOOTPRINT PATTERN
0.6
0.25
0.25
1.8
2.6
( 3.1 )
2.6
3.0
0.6
2.1
φ2.0
φ0.5
1.25
0.35
Sect.A-A
Ground
Contact
Housing Contact
Cut out Prohibition Area
1.0 1.0
1.05 1.05
±0.05
±0.05 ±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
4.0
1.9
1.0
2.2
1.0
HOUSING
CONTACT
GROUND CONTACT
LCP UL94V-0
COPPER ALLOY
COPPER ALLOY
Parts Material
Plating / Color (3pad) Plating / Color (4pad)
NATURAL
Au
Au or Ag
BLACK
Au
Au
* *
Packing : Emboss Tape
1reel
5,000pcs
2,500pcs
03
01
Material and Finish
MHF® Plug Cable Assembly
Mating Profile : 2.5mm MAX.
Applicable for AWG30 (φ1.37mm) Cable
Part Number
20351-1 * 2 R- 37
Ground Contact : Au Plating
①②
Applicable Cable Size
Parts Material Plating / Color
HOUSING PBT UL94V-0 NATURAL
CONTACT Au
GROUND CONTACT Au
COPPEER ALLOY
Part No. (Au) 20351-1*2R-37
Part No. (Ag) -
for AWG#30
Braided Shield of Outer Conductor Single Braided Shield
IPX
37
COPPEER ALLOY
AWG#30
(7/0.102)
φ1.37
φ1.13
φ0.88
Nominal
Applicable Cable
Nominal Dimension
Inner Conductor
Silver Plating
Dielectric Core
Outer Conductor
Silver or Tin Plating
Jacket
2.3
1.1 1.16
±0.1
±0.1
±0.1
Nominal
2.62
3.0
4.7
2.1
Plug
P/N 20351-1*2R-37
Receptacle
P/N 20279-001E-01
P/N 20441-001E-01
Coaxial Cable 4.7
2.5 MAX
MATED VIEW
0
1
R
Tool
Packing
for Hand Tool ( with Notch )
for Semi-Auto ( without Notch )
Reel 1reel : 2,000pcs
2012/11R6
MHF® Receptacle
Part Number
20279-001 E-
Ground Contact : Au Plating
20314-001 E- 01
Ground Contact : Ag Plating
X X
Material and Finish
(0.6)
0.25
(3.1)
2.6
1.8
0.25
0.6
2.6
3.0
2.1
φ2.0
φ0.5
0.2
0.35
1.25
Ground
Contact
Housing Contact
Sect.X-X
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
4.0
1.0
1.9
1.05
1.0
2.2
Cut out Prohibition Area
RECOMMENDED FOOTPRINT PATTERN
3pad type
Part Number
20441-001 E- 01
Packing : Emboss Tape
1reel : 5,000pcs
Ground Contact : Au Plating
4pad type
A
A
RECOMMENDED FOOTPRINT PATTERN
0.6
0.25
0.25
1.8
2.6
( 3.1 )
2.6
3.0
0.6
2.1
φ2.0
φ0.5
1.25
0.35
Sect.A-A
Ground
Contact
Housing Contact
Cut out Prohibition Area
1.0 1.0
1.05 1.05
±0.05
±0.05 ±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
4.0
1.9
1.0
2.2
1.0
HOUSING
CONTACT
GROUND CONTACT
LCP UL94V-0
COPPER ALLOY
COPPER ALLOY
Parts Material
Plating / Color (3pad) Plating / Color (4pad)
NATURAL
Au
Au or Ag
BLACK
Au
Au
* *
Packing : Emboss Tape
1reel
5,000pcs
2,500pcs
03
01
MHF® ll Plug Cable Assembly
Mating Profile :
Applicable for AWG36(φ0.81mm), AWG33(φ0.95mm) Cable
2.1mm MAX.
Part Number
20311-011 R -
Ground Contact : Au Plating Ground Contact : Ag Plating
Packing R
Reel 1reel : 2,000pcs
Applicable Cable Size - 08, 10
20312-011 R- * * * *
①②
Part No. (Au) 20311-001R-1020311-011R-08 20312-011R-10
Part No. (Ag) 20312-011R-08
for AWG#36 for AWG#33
Braided Shield of Outer Conductor Single Braided Shield Single Braided Shield
Applicable Cable gauge
Material and Finish
Parts Material Plating / Color
HOUSING LCP UL94V-0 NATURAL
CONTACT Au
GROUND CONTACT Au or Ag
COPPER ALLOY
IPX
(7/0.05)
φ0.81
(φ0.65)
φ0.42
Nominal
COPPER ALLOY
Applicable Cable
Nominal Dimension
Inner Conductor
Silver Plating
Dielectric Core
Outer Conductor
Silver or Tin Plating
Jacket
2.05
1.05 1.3
±0.1
±0.1
±0.1
2.05 ±0.1
1.0±0.1
1.3±0.1
φ0.15
Nominal
Nominal
(7/0.071)
φ0.98
(φ0.85)
φ0.62
Nominal
φ0.21
Nominal
Nominal
Plug
P/N 20311-011R-10 P/N 20312-011R-10
P/N 20311-011R-08 P/N 20312-011R-08
Coaxial Cable
MATED VIEW
3.8
2.1 MAX.
2.9
1.3
2.52
(4.97)
3.8
φ2.33
1.62
Receptacle
P/N 20279-001E-01 P/N 20314-001E-01
P/N 20441-001E-01
2012/11R6
MHF® Receptacle
Part Number
20279-001 E-
Ground Contact : Au Plating
20314-001 E- 01
Ground Contact : Ag Plating
X X
Material and Finish
(0.6)
0.25
(3.1)
2.6
1.8
0.25
0.6
2.6
3.0
2.1
φ2.0
φ0.5
0.2
0.35
1.25
Ground
Contact
Housing Contact
Sect.X-X
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
4.0
1.0
1.9
1.05
1.0
2.2
Cut out Prohibition Area
RECOMMENDED FOOTPRINT PATTERN
3pad type
Part Number
20441-001 E- 01
Packing : Emboss Tape
1reel : 5,000pcs
Ground Contact : Au Plating
4pad type
A
A
RECOMMENDED FOOTPRINT PATTERN
0.6
0.25
0.25
1.8
2.6
( 3.1 )
2.6
3.0
0.6
2.1
φ2.0
φ0.5
1.25
0.35
Sect.A-A
Ground
Contact
Housing Contact
Cut out Prohibition Area
1.0 1.0
1.05 1.05
±0.05
±0.05 ±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
4.0
1.9
1.0
2.2
1.0
HOUSING
CONTACT
GROUND CONTACT
LCP UL94V-0
COPPER ALLOY
COPPER ALLOY
Parts Material
Plating / Color (3pad) Plating / Color (4pad)
NATURAL
Au
Au or Ag
BLACK
Au
Au
* *
Packing : Emboss Tape
1reel
5,000pcs
2,500pcs
03
01
Material and Finish
MHF® lll Plug Cable Assembly
Part Number
20367 - 001 R
Ground Contact : Au Plating
Applicable Cable gauge
Parts Material Plating / Color
HOUSING LCP UL94V-0 NATURAL
CONTACT Au
GROUND CONTACT Au
COPPER ALLOY
Part No. (Au) 20367-001R
Part No. (Ag) -
for AWG#36
Braided Shield of Outer Conductor Single Braided Shield
Packing : Reel
1 reel : 2,000pcs
COPPER ALLOY
Applicable Cable
Nominal Dimension
Inner Conductor
Silver Plating
Dielectric Core
Outer Conductor
Silver Plating
Jacket
0.35
1.3 1.05
φ0.81
(φ0.65)
AWG#36(7/0.05)
(φ0.15)
(φ0.42)
±0.05
±0.1 ±0.1
2.0
2.85
(φ1.64)
1.2
Coaxial Cable Plug
P/N 20367-001R
Receptacle
P/N 20369-001E
MATED VIEW
1.6 MAX.
Mating profile : 1.6mm MAX.
Applicable for AWG36 (φ0.81mm /φ0.64mm) Cable
MHF® lll Receptacle
Part Number
20369-001 E
Packing : Emboss Tape
1reel : 5,000pcs
Ground Contact : Au Plating
Parts Material Plating / Color
HOUSING LCP UL94V-0 BLACK
CONTACT COPPER ALLOY Au
GROUND CONTACT Au
Material and Finish
COPPER ALLOY
1.7
1.7
Ground Contact
Contact
2.0
1.4
0.3
0.3
1.3
1.0 1.0
φ1.4
φ0.4
0.85
0.82
Contact
Housing
Groud Contact
2.85
1.6 MAX.
Coaxial Cable
Plug
P/N 20367-001R
Receptacle
P/N 20369-001E
MATED VIEW
2.6
1.4
1.5
0.5
0.75
0.65
1.3 1.3
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05 ±0.05
±0.05
Cut out Prohibition Area
RECOMMENDED FOOTPRINT PATTERN
Material and Finish
MHF®-A13 Plug Cable Assembly
Mating profile : 1.45mm MAX.
Applicable for AWG32 (φ1.13mm) Cable
Part Number
20428 - 001 R
Ground Contact : Au Plating
Applicable Cable gauge
Parts Material Plating / Color
HOUSING PBT UL94V-0
BLACK
CONTACT Au
GROUND CONTACT Au
COPPER ALLOY
Part No. (Au) 20428-001R
Part No. (Ag) -
for AWG#32
Braided Shield of Outer Conductor Single Braided Shield
Packing : Reel
1 reel : 2,000pcs
COPPER ALLOY
Applicable Cable
Nominal Dimension
Inner Conductor
Silver Plating
Dielectric Core
Outer Conductor
Tin Plating
Jacket
0.3
1.45 1.57
φ1.13
(φ0.8)
(7/0.08)
(φ0.24)
(φ0.7)
±0.05
±0.1 ±0.05
MATED VIEW
2.6
3.5
1.09
Coaxial Cable
Plug
P/N 20428-001R
Receptacle
P/N 20429-001E
1.45 MAX
Part Number
20429-001 E
Packing : Emboss Tape
1reel : 5,000pcs
Ground Contact : Au Plating
Parts Material Plating / Color
HOUSING LCP UL94V-0 BLACK
CONTACT COPPER ALLOY Au
GROUND CONTACT Au
Material and Finish
COPPER ALLOY
MATED VIEW RECOMMENDED FOOTPRINT PATTERN
MHF®-A Receptacle
2.6
2.6
φ2.0
φ0.5
0.63
Housing
Contact
Ground Contact
3.0
0.6
1.8
1.55
1.55
0.6
Coaxial Cable Receptacle
P/N 20429-001E
Plug
P/N 20428-001R
4.62
3.5
1.45 MAX
Contact Area
Cut out Prohibition Area
3.8
1.9
2.0
1.85
2.05
0.8
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
Material and Finish
MHF® 4 Plug Cable Assembly
Part Number
20448 - 001 R -081
Ground Contact : Au Plating
Applicable Cable gauge
Packing : Reel
1 reel : 2,000pcs
1.02
1.16
0.30
±0.09
±0.1
±0.1
Inner conductor
AWG#36(7/0.05)
(φ0.15)
Dielectric core
φ0.42
Outer conductor
(φ0.65)
Jacket
φ0.81
Minimum
HOUSING
CONTACT
GROUND CONTACT
PBT UL94V-0
COPPER ALLOY
COPPER ALLOY
Parts
Plating / Color
BLACK
Au
Au
Material (SMT Plug)Material (Plug)
LCP UL94V-0
COPPER ALLOY
COPPER ALLOY
2.1
0.9
2.55
φ1.82
MHF® 4 SMT Plug
Part Number
20462 - 001 E
Ground Contact : Au Plating
Packing : Emboss Tape
1 reel : 5,000pcs
2.8
2.0
0.3
2.5
1.8
0.4
1.8
0.9
(φ1.44)
Contact Housing
Ground Contact
3.1
2.0
1.45 MAX.
(Signal Pattern)
0.4
For Signal
Only Signal Pattern allowed
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
2.0
2.8
1.8
0.3 MAX.
(Signal
Pattern)
Only Ground Pattern allowed
Pattern Prohibition area
0.5
1.45 MIN.
(Ground Pattern
and Prohibition area)
For Ground
RECOMMENDED FOOTPRINT PATTERN
Mating profile : 1.2mm MAX.
Applicable for AWG36 (φ0.81mm) Cable
Mating profile : 1.2mm MAX. + FPC
Applicable for FPC
MHF® 4 Receptacle
Part Number
20449-001 EPacking : Emboss Tape
1reel : 10,000pcs
Ground Contact : Au Plating
Parts Material Plating / Color
HOUSING LCP UL94V-0 BLACK
CONTACT COPPER ALLOY Au
GROUND CONTACT Au
Material and Finish
COPPER ALLOY
MATED VIEW
RECOMMENDED FOOTPRINT PATTERN
AA
2.0
1.76
0.4
0.5
0.16
1.4
1.68
(2.0)
0.16
φ1.5
φ0.45
0.2
(0.57)
0.6
Ground Contact
Housing
Contact
Sect. A-A
1.52
SMT Plug
P/N 20462-001E
Receptacle
P/N 20449-001E
Plug
P/N 20448-001R-081
Coaxial Cable
Receptacle
P/N 20449-001E
1.2 MAX
1.2 MAX
2.5
1.5
1.34
0.5
1.58
0.54
0.38
0.75
1.25
1.25
0.7
0.6
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05
±0.05Contact
Ground conatct
Cut out Prohibition Area
by DAI-ICHI SEIKO
[ MEMO ]
©2012 DAI-ICHI SEIKO Co.,Ltd.
http://www.i-pex.com
TAIWAN DAI-ICHI SEIKO I-PEX CO., LTD. TAIWAN
BRANCH (JAPAN)
15F-6, No.700, Jung Jeng Rd., Jung He Dist.,
New Taipei City 235, Taiwan, R.O.C.
TEL 886-2-8227-9288 FAX 886-2-8227-8665
SINGAPORE I-PEX (SINGAPORE) PTE LTD.
Blk 2, Woodlands Sector 1, #01-24,
Woodlands Spectrum 1, 738068, Singapore
TEL 65-6333-0662 FAX 65-6333-0663
KOREA I-PEX KOREA CO., LTD.
D801, Digital Empire Bldg. 980-3, YoungTong dong,
YoungTong Gu Suwon si, KyeonGi-Do, 443-470 Korea
TEL 82-31-206-1492 FAX 82-31-206-1494
HONG KONG I-PEX ELECTRONICS (H.K.) LTD.
Suite 602, 6/F, Wharf T&T Centre, No.7 Canton Road,
Tsim Sha Tsui, Kowloon, Hong Kong
TEL 852-2735-8077 FAX 852-2735-8099
U. S. A. I-PEX U.S.A. L.P.
2305 Donley Drive, Suite110, Austin, Texas 78758 U.S.A.
TEL 1-512-339-IPEX(4739) FAX 1-512-339-4745
2012/02R6
SHANGHAI I-PEX (SHANGHAI) CO., LTD.
10F, Room 1002-1003, Tong Quan Tower,
NO.678, Gubei Road, Chang Ning District,
Shanghai 200336, China
TEL 86-21-5208-1611 FAX 86-21-5208-1612
FRANCE I-PEX FRANCE
Tour Sébastopol -3 quai Kléber, Strasbourg,
67000, France
TEL 33-3-8823-7152 FAX 33-3-8823-7000
TOKYO DAI-ICHI SEIKO CO., LTD. TOKYO OFFICE
(I-PEX Business Company)
6-27-19 Haramachida, Machida-City,
Tokyo, 194-0013, Japan
TEL 042-729-1670 FAX 042-729-1671
OSAKA DAI-ICHI SEIKO CO., LTD. OSAKA BRANCH
(I-PEX Business Company)
5F Chiyoda Bldg., Nishi-Kan,
2-5-4 Umeda, Kita-Ku, Osaka-City,
Osaka, 530-0001, Japan
TEL 06-6346-2022 FAX 06-6346-2023
Product design and specification is subject to change for improvement without notice in advance. Please inquire to I-PEX representative for your confirmation.