microSD™ Card Connectors
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
DM3 Series
■Features
◆ Common to the entire Series
1. Extremely small in size
Small external dimensions and the above-the-board height
make the connectors the smallest on the market.
2. Reverse card insertion protection
Unique card slot design (patented) protects the connector
from damage when the card is attempted to be inserted in
reverse, allowing it to re-inserted correctly.
3. Effective ground and shield configuration
◆ DM3D (Push -Pull, manual, without
ejection mechanism)
· Partial card insertion hold
Card will not fall-out even when it is not fully inserted. Full
insertion and electrical / mechanical connection is confirmed
with a distinct tactile feel.
· Accessible termination areas
An inner lead system that can be reworked is used in this design.
Contact solder terminations may be inspected and reworked.
4-connection points of the metal cover to the printed circuit
board assures secure connection of the ground circuit and
provides EMI protection.
4. Rigid and strong construction
Despite its small size, high-strengths materials used in the
connectors produced a strong and rigid structure.
5. Card detection switch
Card insertion-ejection
Series
Image
Page
The card detection switch is Normally Open
◆ DM3AT and DM3BT (Push - Push, with
ejection mechanism)
DM3AT
2~4
DM3BT
5~6
Hinge-manual
insertion/
ejection
DM3CS
7~8
Push-Pull
manual insertion/
ejection
DM3D
9~10
· Card fall-out prevention
Built-in card tray and the unique push insertion-push ejection
mechanism (patented) prevent accidental card ejection or fallout.
Despite its small size the connectors will eject the card to a
distance of 4.0mm, allowing easy hold and removal of the card.
Push-Push
· Exposed termination leads
Easy inspection and rework of the solder termination joints.
◆ DM3CS (Hinge, Push-Pull, manual, without
ejection mechanism)
· Simple and reliable card insertion
Hinged metal cover provides location and guides the card
during the insertion / removal. Closing of the cover confirms
the electrical and mechanical connection with a tactile click
sensation.
· Reliable contact with the card contact pads
Unique contact design and card slide action will clean the
contact areas of the card.
· Accessible termination areas
Contact solder terminations may be inspected and reworked.
2017.1③
1
DM3 Series●microSD™ Card Connectors
■Product Specifications (DM3 Series)
Ratings
Current rating : 0.5A
Voltage rating : 125V AC
Item
Operating temperature range : -25ç to +85ç (Note 1) Operating humidity range : RH 95% max.
Storage temperature range : -40ç to +85ç (Note 2) (No condensation)
Specification
Conditions
1. Insulation resistance
1000Mø min. (Initial value)
Measure at 500V DC
2. Withstanding voltage
No flashover or insulation breakdown
500 V AC / 1 minute
3. Contact resistance
100mø max. (Initial value)
1mA
4. Vibration
No electrical discontinuity of 100 ns or longer
No damage, cracks or parts dislocation.
Frequency : 10 to 55Hz, single amplitude of 0.75mm,
3 directions for 2 hours
Contact resistance : 40mø max. (change from initial value)
Insulation resistance : 100Mø min.
5. Humidity
96 hours at of 40 ± 2ç, and humidity of 90 to 95%
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
No damage, cracks or parts dislocation.
Contact resistance : 40mø max. (change from initial value)
-55ç ➝ 5 to 35ç ➝85ç ➝ 5 to 35ç
Insulation resistance : 100Mø min.
Times : 30 min. ➝ 5 min. ➝ 30 min. ➝ 5 min.
No damage, cracks or parts dislocation.
5 cycles
7. Durability
Contact resistance : 40mø max. (change from initial value)
10,000 cycles, 400 to 600 cycles per hour (DM3AT, DM3B)
5,000 cycles, 400 to 600 cycles per hour (DM3C, DM3D)
8. Resistance to
soldering heat
No deformation of components affecting performance.
Reflow
: At the recommended temperature profile
Manual soldering : 350ç for 3 seconds
6. Temperature cycle
Note 1 : Includes temperature rise caused by current flow.
Note 2 : The term "storage" refers to products stored for long period prior to mounting and use.
■Materials / Finish
DM3AT, DM3BT
Part
Material
Finish
Remarks
Insulator
LCP
Color : Black
UL94V-0
Contacts
Copper alloy
Contact area : Gold plated
Lead area : Gold plated
-------------------
Lead area : Gold plated
-------------------
------------------Nickel plated
-------------------
Guide cover
Other components
Stainless steel
(DM3AT)
Copper alloy
(DM3BT)
Stainless steel
(DM3AT, DM3BT)
Piano wire
(DM3BT)
DM3CS, DM3D
Part
Material
Finish
Remarks
Insulator
LCP
Color : Black
UL94V-0
Contacts
Copper alloy
Contact area : Gold plated
Lead area : Gold plated
-------------------
Guide cover
Stainless steel
------------------- (DM3CS)
Tin plated (DM3D)
-------------------
■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.
DM3 AT – SF – PEJM5
1
2
3
1 Series name : DM3
2 Connector type
: AT Push-Push (ejection mechanism), Top board mounting (Standard)
BT Push-Push (ejection mechanism), Bottom board mounting (Reverse)
CS Hinge, Push-Pull (no ejection mechanism), Top board mounting (Standard)
D Push-Pull (no ejection mechanism), Top board mounting (Standard)
Number of contacts : 8
2
4
3 Termination type : SF Right-angle SMT(Standard)
DSF Right-angle SMT(Reverse)
4 Card ejection code : PEJM5, PEJS
None
(Push insert/push eject)
: Manual card
insertion/ejection
DM3 Series●microSD™ Card Connectors
■DM3AT Push-Push (ejection mechanism), Top board mounting (Standard)
#5(CLK)
#6(VSS)
#7(DAT0)
#8(DAT1)
#4(VDD)
#3(CMD)
#2(CD/DAT3)
#1(DAT2)
13.85
(7.35)
(3.2)
(15)
15.95
(16.75):CARD OVER STROKE POSITION
(17.55):CARD LOCK POSITION
(21.55):CARD EJECT POSITION
1.68
15.95
Part No.
HRS No.
DM3AT-SF-PEJM5
609-0031-0
2
CARD DETECTION
SWITCH(A)
(0.8)
microSD CARD
(5.5)
CL
(11)
1
All dimensions : mm
2.9±0.15
■Recommended PCB mounting pattern
10MIN
9.25MAX
8.65
7.7
8.9MIN
8.2MIN
1
1.2
Note
0.5
1
2
3
3
1.9
2.8
0.8
2.7
3.25
3
Closed
(B)
(A)
(B)
No conductive traces.
15
9.1
0.15
(3.2)
(A)
0.
1
C
L
Card detection switch
Open
3
1
CL indicates the center line of the
microSD card slot.
Without the card Card inserted
14.1MAX
14.5
15.1
14.05
13.3MIN
9.9
7.9MIN
5.7MAX
3.7
1.2
0.15MIN
1.55
P=1.1
0.7
4.4MAX
6MIN
0.7
C
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
2
CARD DETECTION
SWITCH(B)
1.3
All dimensions : mm
3
DM3 Series●microSD™ Card Connectors
BPackaging Specifications
● Embossed carrier tape dimensions (1,500 pcs/reel)
UNREELING DIRECTION
(3.2)
20
2
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
32
28.4
(16.35)
14.2
.5
Ø1
1.75
P=4
All dimensions : mm
● Reel Dimensions
TRAILER
32.4
PORTION EQUIPPED
WITH COMPONENTS
Ø380
Ø80
END
START
OVAL
EMPTY(160mm MIN)
EMBOSSED CARRIER TAPE
4
LEADER(400mm MIN)
CIRCLE
EMPTY(100mm MIN)
TOP COVER TAPE
DM3 Series●microSD™ Card Connectors
■DM3BT, Push-Push (ejection mechanism), Bottom board mounting (Reverse)
#4(VDD)
#3(CMD)
#2(CD/DAT3)
#1(DAT2)
#5(CLK)
#6(VSS)
#7(DAT0)
#8(DAT1)
(3.2)
2.38MAX
1.83
HRS No.
DM3BT-DSF-PEJS
609-0029-9
(0.55)
CARD DETECTION
SWITCH(B)
2.7MAX
6.7MAX
(6.5)
3
3
CARD DETECTION
SWITCH(A)
1
2
15.1
15.45
(21.55):CARD EJECT POSITION
(17.55):CARD LOCK POSITION
(16.75):CARD OVER STROKE POSITION
16.05
15.95
(15)
Part No.
2
microSD CARD
CL
(5.5)
(11)
■Recommended PCB mounting pattern
All dimensions : mm
2.9±0.15
10MIN
9.25MAX
8.65
7.7
1.9
1.2
3.5
7.7MIN
9.7
13.3
0.2
0.35MIN
1±0.05
1.4
0.7
P=1.1
0.7
4
14.75
14.3
Note
1
2
CL indicates the center line of the
microSD card slot.
Card detection switch
Without the card Card inserted
Open
Closed
(B)
(A)
(B)
C
0.
15
(A)
C
L
0.8
3.2
3
1.9
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3
13.85
1
0.5
4
(3.2)
1.5
3.05
8.9
1.2
Oblique-hatched area is projection
of contact.
No conductive traces.
All dimensions : mm
5
DM3 Series●microSD™ Card Connectors
BPackaging Specifications
● Embossed carrier tape dimensions (1,200 pcs/reel)
20
UNREELING DIRECTION
2
(3.75)
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
32
28.4
(16.35)
14.2
.5
Ø1
1.75
P=4
All dimensions : mm
● Reel Dimensions
32.4
Ø380
Ø80
CIRCLE
TRAILER
PORTION EQUIPPED
WITH COMPONENTS
END
START
OVAL
EMPTY(160mm MIN)
EMBOSSED CARRIER TAPE
6
LEADER(400mm MIN)
EMPTY(100mm MIN)
TOP COVER TAPE
DM3 Series●microSD™ Card Connectors
■DM3CS, Hinge, Push -Pull (no ejection mechanism), Top board mounting (Standard)
CARD DETECTION SWITCH
2
13.8
(6.9)
1.83
HRS No.
DM3CS-SF
609-0032-3
12
13.9
(15.45):LOCK POSITION
14.1
Part No.
0.1
C
L
(5.5)
1
microSD CARD
(0.93)
(11)
(1.78)
■Recommended PCB mounting pattern
(13.8)
8.25MIN
6.3
1.4
2.7
2.7
4.1MIN
3.5MAX
3
1
2.6
C
L
3
(3.2)
1
Card detection switch
Without the card
Card inserted
Open
Closed
GND(1)
GND(1)
GND(2)
GND(2)
GND(3)
GND(3)
GND(4)
GND(4)
0.7
P=1.1
7.7
9.3
CL indicates the center line of the
microSD card slot.
2
3
1
All dimensions : mm
1.2
2.6
3
#1(DAT2)
#2(CD/DAT3)
#3(CMD)
#4(VDD)
0.55MIN
Note
10.1MIN
9.5MAX
#8(DAT1)
#7(DAT0)
#6(VSS)
#5(CLK)
1.65
1.2
1.4
7.8MAX
12.4
12.9
(14.1)
14.4
12.9
7.8MAX
5.4MIN
2.9MAX
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
(0.2)
1.5
2.8
No conductive traces.
All dimensions : mm
7
DM3 Series●microSD™ Card Connectors
BPackaging Specifications
● Embossed carrier tape dimensions (1,300 pcs/reel)
20
UNREELING DIRECTION
(3.4)
2
32
28.4
14.2
.5
Ø1
1.75
P=4
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
All dimensions : mm
● Reel Dimensions
32.4
Ø80
Ø380
CIRCLE
TRAILER
PORTION EQUIPPED
WITH COMPONENTS
START
END
OVAL
EMPTY(160mm MIN)
EMBOSSED CARRIER TAPE
8
LEADER(400mm MIN)
EMPTY(100mm MIN)
TOP COVER TAPE
DM3 Series●microSD™ Card Connectors
■DM3D, Push-Pull (no ejection mechanism), Top board mounting (Standard)
Card Detection
Switch (B)
11.95
DM3D-SF
609-0025-8
2.7
Card
Center
(4.5)
(5.5)
(0.7)
2
(15)
11.45
(15.8):CARD FULLY INSERTED
11.45
9.65
3.35
1
HRS No.
microSD Card
(11)
#8(DAT1)
#7(DAT0)
#6(VSS)
#5(CLK)
#1(DAT2)
#2(CD/DAT3)
#3(CMD)
#4(VDD)
All dimensions : mm
■Recommended PCB mounting pattern
8.1MIN
5.05 MIN
2.55 MAX
1
3
1
0.4MIN
0.8
1
2
(A)
1.75
1
Card detection switch
Open
1.5
1.85
0.55
CL
1.1
7.7
9.4
10.9
CL indicates the center line of the
microSD card slot.
Without the card Card inserted
1.5
0.8
( 4.5 )
1.4
7.5
9.15
10.7
Note
10.2MIN
8.35
8.2MAX
6.85
1.5
6MIN
4MAX
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Part No.
Card Detection
Switch (A)
(6)
1.55
0.9
2
3
Closed
(B)
(A)
(B)
No conductive traces.
All dimensions : mm
9
DM3 Series●microSD™ Card Connectors
BPackaging Specifications
2
P= 4
16
Unreeling direction
24
22.25
(11.85 )
11.5
.5
Ø1
1.75
● Embossed carrier tape dimensions (2,000 pcs/reel)
Jul.1.2020 Copyright 2020 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
All dimensions : mm
● Reel Dimensions
Lead section (400mm min.)
End section
24.4
Blank section
(160mm min.)
Mounting section
Embossed carrier tape
10
Blank section
(100mm min.)
Ø380
Ø80
Unreeling direction
Top cover tape
DM3 Series●microSD™ Card Connectors
BRecommended temperature profile
(ç)
Peak:250ç MAX
250
230ç min.
50
seconds
Temperature
200
200ç
150
Soldering
150ç
90 to 120 seconds
Preheating
100
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50
HRS test condition
Solder method
: Reflow, IR/hot air
Environment
: Room air
Solder composition : Paste, 96.5%Sn/3.0%Ag/0.5%Cu
(Senju Metal Industry, Co., Ltd.'s
Part Number:M705-GRN360-K2-V)
Test board
: Glass epoxy 60mm∞100mm∞1.0mm thick
Metal mask
: 0.12mm thick
Number of reflow cycles : 2cycles max.
The temperature profiles shown are based on the above
conditions.
In individual applications the actual temperature may vary,
depending on solder paste type, volume / thickness and board
size / thickness. Consult your solder paste and equipment
manufacturer for specific recommendations.
Time (Seconds)
BPrecautions
1. Do not immerse or clean the entire connector with cleaning solutions as this may affect proper operation of the
ejection mechanism and electrical performance of the connector
2. Do not apply excessive force to the connector when handling or after installation on the PC board.
3. The connectors will reliably connect and operate with the correctly inserted microSDTM cards.
Follow the correct insertion / ejection procedure for the specific connector in use.
Attempts of incorrect insertion of the card may cause damage to the connector or the card.
4. The connector must be correctly mounted on the PC board before the card can be inserted. Do not insert the card in
the un-mounted connector.
5. Mounting on the Flexible Printed Circuit (FPC)
To assure correct performance it is recommended that a flat reinforcement plate 0.3 mm min. thick be used under
the FPC.
6. Small visible residual manufacturing fluids or tooling marks do not affect connector's performance.
7. Repeated insertions and removal of the cards may leave some marks on the card itself. This will have no affect on
the connector performance.
● Refer to applicable Operation Manual listed below for additional precautions.
Series
Operation Manual Number
DM3AT Series
ETAD-F0345
DM3BT Series
ETAD-F0324
DM3CS Series
ETAD-F0335
DM3D Series
ETAD-F0353
11
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DM3 Series●microSD™ Card Connectors
12
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 01/2017. Contents are subject to change without notice for the purpose of improvements.