185

RoHS Compliant, ELV Compliant

10

Installation Guidelines for the Strap Family

• PPTC devices operate by thermal expansion of the conductive polymer. If devices are placed under pressure or installed in spaces that

would prevent thermal expansion, they may not properly protect against damage caused by fault conditions. Designs must be selected in

such a manner that adequate space is maintained over the life of the product.

• Twisting, bending, or placing the PPTC device in tension will decrease the ability of the device to protect against damage caused by

electrical faults. No residual force should remain on device after installation. Mechanical damage to the PPTC device may affect device

performance and should be avoided.

• Chemical contamination of PPTC devices should be avoided. Certain greases, solvents, hydraulic fluids, fuels, industrial cleaning agents,

volatile components of adhesives, silicones, and electrolytes can have an adverse effect on device performance.

• PPTC strap devices are designed to be resistance welded to battery cells or to pack interconnect straps, yet some precautions must be

taken when doing so. In order for the PPTC device to exhibit its specified performance, weld placement should be a minimum of 2mm from

the edge of the PPTC device, weld splatter must not touch the PPTC device, and welding conditions must not heat the PPTC device above

its maximum operating temperature.

• PPTC strap devices are not designed for applications where reflow onto flex circuits or rigid circuit boards is required.

• The polyester tape on PPTC strap devices is intended for marking and indentification purposes only, not for electrical insulation.

• The coating on MXP devices is intended to prevent oxidization/aging of the devices. Damaging the coating or causing the coating to

delaminate can have negative effects on device performance and should be avoided.

• MXP devices have small PPTC chip size and therefore have weaker peel strength between polymer and Ni-foil of the chip. Excessive

mechanical force to the device may cause delamination of Ni-foil from polymer.

SRP

SRP120F

1,000

—

10,000

120

UL, CSA, TÜV

SRP120LF

1,000

—

10,000

120

UL, CSA, TÜV

SRP120SF

2,000

—

10,000

120

UL, CSA, TÜV

SRP175F

2,000

—

10,000

175

UL, CSA, TÜV

SRP175LF

1,000

—

10,000

175

UL, CSA, TÜV

SRP175SF

2,000

—

10,000

175

UL, CSA, TÜV

SRP200F

1,000

—

10,000

200

UL, CSA, TÜV

SRP350F

500

—

10,000

350

UL, CSA, TÜV

SRP420F

500

—

10,000

420

UL, CSA, TÜV

Part Number

Bag

Quantity

Tape & Reel

Quantity

Standard Package

Quantity

Part Marking

Agency Recognition

Agency Recognition for Strap Battery Devices

UL

File # E74889

CSA

File # 78165C

TÜV

Certificate number available on request

Table B6 Packaging and Marking Information/Agency Recognition for Strap Battery Devices

Cont’d