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TAKACHI Electronics Enclosure Co., Ltd.
SMTM・BK series - METAL COIN CELL HOLDER

SMTM・BK series - METAL COIN CELL HOLDER

Product catalog summary

Overview: The document provides technical specifications and details for the SMTM, BK, and BS series metal coin cell holders, suitable for various coin cell batteries. These holders are designed for both surface mount and through-hole applications, with options for automated placement using tape and reel packaging.

Specifications:

Material: Phosphor bronze with nickel plating.
Available in both surface mount and through-hole configurations.
Compatible with a range of coin cell sizes including CR2032, CR1220, CR1632, and others.

Product Details:

Each product is listed with its matching coin cell type, contact type, weight, and packaging details.
Examples include BK-879 for SR621/ML621, BK-5091 for LR44, and SMTM2032 for CR2032/CR2025.

Installation and Layout:

PCB layout diagrams are provided for each holder type, indicating negative contact areas and zones for soldering.
Recommended PCB thickness for installation is 1.0mm or thinner.

Packaging:

Products are available in tape and reel packaging for automated assembly, with specific dimensions and reel capacities listed.
Examples include SMTM1225-TR with 1,000 pieces per reel and SMTM2032-TR with 600 pieces per reel.

Additional Information:

DXF/DWG/PDF drawings are available for detailed design and installation guidance.
Negative contact for CR2032 coin cell is specifically highlighted for use with SMTM2032 or BK-888 holders.

Catalog excerpts

SMTM・BK series - METAL COIN CELL HOLDER-1

■ Material / Finish : Phosphor bronze / Nickel plated ■ Metal coin cell holder. ■ SMTM series is available with tape and reel packaging (TR Type) suitable for automated placement equipment. ■ Make a negative pole on the PCB and place or solder a plate onto it. BK2032M negative contact can be used for SMTM2032 and BK-888. Product no. / Details Product no. Matching coin cell Contact type Weight (g) Pack of Surface mount x 2 — 1,000 / Tape and reel Surface mount x 2 — 700 / Tape and reel Surface mount x 2 — 600 / Tape and reel ■ DXF/DWG/PDF drawings available on our website.

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SMTM・BK series - METAL COIN CELL HOLDER-2

Negative contact area Negative contact area Negative contact area 4×4 Negative contact area 6×6 Negative contact area 4×4 Negative contact area 5×5

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SMTM・BK series - METAL COIN CELL HOLDER-3

PCB layout top view PCB layout top view 25.3 Negative contact area 4×4 Negative contact area 4×4 PCB layout top view PCB layout top view 25.4 Negative contact area 4×4 Negative contact area 4×4 NEGATIVE COIN CELL CONTACT for CR2032 ■ DXF/DWG/PDF drawings available on our website. SMTM + BK-2032M PCB layout top view Coin cell insert Installation hole layout ■ Material / Finish : Phosphor bronze / Nickel plated Holder drawings ■ Negative contact for CR2032 coin cell. ■ Suitable to be used with SMTM2032 or BK888 holders. Coin cell insert ■ Cut area will have base material exposed (unfinished). Holder...

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SMTM・BK series - METAL COIN CELL HOLDER-4

^Holder storage spacing will vary depending on model.

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