Battery Retainer Guide Datasheet by MPD (Memory Protection Devices)

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MEMORY PROTECTION DEWOESJ‘INC. : MPD l MEMORY PROTECTION DEVICES, INC. 200 BROAD mow ROAD, FARMINGDALE, NY 11735-4514 m, «m mmvypmtscimmwssmm w. (Sal-24941001 n- 631-2490002
Battery Retainer Guide
MEMORY PROTECTION DEWOESJ‘INC. : MPD l MEMORY PROTECTION DEVICES, INC. 200 BROAD mow ROAD, FARMINGDALE, NY 11735-4514 m, «m mmvypmtscimmwssmm w. (Sal-24941001 n- 631-2490002
Product Overview:
Coin cell retainers are simple metal contacts that both electrically connect coin cells and
hold them in place, while taking up minimal additional space on the PCB. They feature nickel-
plating, and since most coin cells have nickel shells this helps to prevent galvanic corrosion,
an electrochemical process that can damage dissimilar metals that are in electrical contact.
Our retainers are always designed with automation in mind, and can be easily picked and
placed, with both through hole and surface mount retainers available for most coin cell sizes.
Combining the ease of automation with the low cost of MPD's retainers, it is no wonder they
are such a popular product.
In a typical application the pcb acts as the negative contact. Offering a lower height,
reducing piece count, saving the cost of the negative terminal and its assembly are just a
few of the designs advantages in favor of retainers. The negative pads shape and size are
not critical but the plating is. Never use tin or solder paste for the surface material. MPD
Recommends that nickel or gold are very suitable to act as the negative contact on your
pcb.
Soldering:
One of the most frequent questions MPD receives about coin cell retainers is
soldering them. Retainers are nickel plated over a phosphor bronze body and the
lithium batteries are nickel plate over a stainless steel body.
Nickel usually requires a more active solder paste and MPD recommends working with
your paste suppler in picking the one most suitable for your design.
Comments:
If you have a battery access door, grow ribs or other features to keep the
battery securely in place (hand held or portable products).
Passes MPD’s standard shock and vibration testing requirements.
RoHS compliant.
Passes 24 hour salt spray test
MEMORY PROTECTION DEVICES, INC. For more information about lithium batteries visit: cr2032.co For more information about solder paste visit: kester.com The full selection of coin cell retainers currently available can be Battery-Conmctscom[coin-cell-retainers.php : MPD I MEMORY PROTECYION DEVICES. INC, 200 BROAD HOLLOW ROAD FARMlNGDALE, Nv 117354314 memurynmlecnnndev-ces wm savzmooot 63172A947002
For more information about lithium batteries visit: cr2032.co
For more information about solder paste visit: kester.com
The full selection of coin cell retainers currently available can be viewed online at
Battery-Contacts.com/coin-cell-retainers.php
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MEMORY PROTECTION DEVICES, INC. 200 BROAD HOLLOW RD., SUITE 4, FARMINGDALE, NY 11735, USA
WEBSITE: batteryholders.com E-MAIL:sales@batteryholders.com TEL:+1 631-249-0001 FAX:+1 631-249-0002
5
BK-414-TR
ML414 Retainer
BK-5091
LR44 Retainer
Micro diameters
BK-5033
Diameter: 24mm
BK-913
Diameter: 20 mm
BK-869
Diameter: 16 mm
BK-868
Diameter: 16 mm
Actual Size
Battery Retainer Contacts
BK-884
Diameter: 23 mm
BK-885
Diameter: 12 mm
BK-886
Diameter: 24mm
BK-912-TR
Diameter: 20 mm
BK-887
Diameter: 24mm
BK-888
Diameter: 20 mm
BK-889
Diameter: 23 mm
BK-890
Diameter: 12 mm
Surface
Mounting
PC Pins
BK-883-TR
Customized
Retainer Contacts
Low Profile Design
We can custom manufacture our coin cell retainer contacts to fit into confined and problematic spaces.
Ultra-thin profile.
offers practical.
mounting solutions.
BK-5067
Diameter: 20 mm
Low Profile
BK-883
Diameter: 20 mm
r“ / + \ WIT? “ wwwbattery-contacts.com ‘ :MPD I MEMORV PROTECTION DEVICES. INC.
MEMORY PROTECTION DEVICES, INC. 200 BROAD HOLLOW RD., SUITE 4, FARMINGDALE, NY 11735, USA
WEBSITE: batteryholders.com E-MAIL:sales@batteryholders.com TEL:+1 631-249-0001 FAX:+1 631-249-0002 6
Battery Retainer Contacts
Individual drawings of our products are available online at www.battery-contacts.com
P/N with Coin Cell Typical Part Number for Lithium Coin Batteries and Many Standard
PC Pins Diameter Zinc Air, Silver Oxide, and Other Rechargable Lithium Batteries
BK-5091 11.6 mm LR44, SR44, AG13, A76, 303, and 357 batteries
BK-890 12 mm BR/CR/DL 1216, 1220, 1225, 379, 371, 381, 391, 389, RW80, LR55 batteries
V8GA, G8 or 1.6 to 2.5 mm thick by 12 mm maximum diameter batteries
BK-869 16 mm BR/CR/DL 1616, 1620, 1632 or 1.6 to 3.2 mm thick by 16 mm diameter batteries
BK-5010 16 mm V80H, V675H, A76, 357, I- Buttons, or 5.2 to 6 mm thick by 16 mm diameter batteries
BK-888 20 mm BR/CR/DL 2016, 2020, 2025, 2032 or 1.6 to 3.2 mm thick by 20 mm diameter batteries
BK-913 20 mm BR/CR/DL 2032 or 3.2 mm thick by 20 mm diameter batteries
BK-889 23 mm BR/CR/DL 2320, 2325, 2330 or 2.0 to 3.0 mm thick by 23 mm diameter batteries
BK-881 23 mm BR/CR/DL 2354 or 5.4 mm by 2.3 mm diameter batteries
BK-887 24 mm BR/CR/DL 2430 or 2.0 to 3.0 mm thick by 24 mm diameter batteries
BK-5033 24 mm BR/CR/DL 2450 batteries
BK-880 24 mm BR/CR/DL 2450 or 5.0 mm thick by 24 mm diameter batteries
P/N with Coin Cell Typical Part Number for Lithium Coin Batteries and Many Standard
SMD Diameter Zinc Air, Silver Oxide, and Other Rechargable Lithium Batteries
BK-414 4.8 mm ML414 batteries
BK-335-TR 5.8 mm 335 batteries
BK-879 6.8 mm MC621, V364, SC621, 379, V321, SR65, V364, SR60, V377, SR66, V379, and SR63
BK-885 12 mm BR/CR/DL 1216, 1220, 1225, 379, 371, 381, 391, 389, RW80, LR55 batteries
V8GA, G8 or 1.6 to 2.5 mm thick by 12 mm maximum diameter batteries
BK-868 16 mm BR/CR/DL 1616, 1620, 1632 or 1.6 to 3.2 mm thick by 16 mm diameter batteries
BK-5009 16 mm V80H, V675H, A76, 357, I- Buttons, or 5.2 to 6 mm thick by 16 mm diameter batteries
BK-5067 20 mm BR/CR/DL 2016 or 1.2 to 1.6 mm thick batteries
BK-883 20 mm BR/CR/DL 2016, 2020, 2025, 2032 or 1.6 to 3.2 mm thick by 20 mm diameter batteries
BK-912TR 20 mm BR/CR/DL 2032 or 3.2 mm thick by 20 mm diameter batteries
BK-884 23 mm BR/CR/DL 2320, 2325, 2330 or 2.0 to 3.0 mm thick by 23 mm diameter batteries
BK-878 23 mm BR/CR/DL 2354 or 5.4 mm by 2.3 mm diameter batteries
BK-886 24 mm BR/CR/DL 2430 or 2.0 to 3.0 mm thick by 24 mm diameter batteries
BK-877 24 mm BR/CR/DL 2450 or 5.0 mm thick by 24 mm diameter batteries
Solder paste locations for mounting retainers
SURFACE MOUNT PCB
Square Pad Positive Contacts
THROUGH HOLE PCB
Mounts Through Holes in Board
1mm surround for solder paste
Square or round pad
Negative contact: Nickel or gold-plated
Battery physically sits on the pad
Through hole
Square pad
Solder paste
1mm surround

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