Datasheet > Z Form

Z Form

更新时间： 2024-11-15 14:51:47

品牌	Logo	应用领域
TTELEC		/
页数	文件大小	规格书
2页	340K
描述
NRND Surface mount leadforming option for resistors

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Z Form 数据手册

Note - Not recommended for

new designs. There are no EOL

plans for Z-form, but for new

designs the newer ZI-form is

recommended.

Resistors

Z-form SMD

Leadform Option

Z-Form

SMD power resistors up to 5W

ꢀ Air-cooledꢀformꢀpreventsꢀPCBꢀoverheaꢁng

ꢀ Approvedꢀaxialsꢀcanꢀbeꢀre-usedꢀinꢀSMDꢀdesigns

ꢀ Precision,ꢀfusibleꢀ&ꢀhighꢀvoltageꢀalsoꢀavailable

ꢀ Compaꢁbleꢀwithꢀvacuumꢀpickꢀ&ꢀplace

AllꢀpartsꢀareꢀPb-freeꢀandꢀcomplyꢀwithꢀEUꢀDirecꢁveꢀ2011/65/EUꢀamendedꢀbyꢀ(EU)ꢀ2015/863ꢀ(RoHS3)

Description

The Z-form option allows conversion of axial through-hole resistors into a surface mount format. This makes available to desigenrs

of SMD circuits resistors with characteristics that are simply not available in flat chip or MELF styles. For example, powersrisetors with

ratings up to 5W which dissipate their heat into the air can now be surface mounted - a valuable alternative to an array of eseravl

chip resistors which dump heat into the PCB. Precision metal film parts are available that give combinations of power rating dan

stability that are not available in thin film chips. And several of Welwyn's fusible and high-voltage axials are also now surface mountable,

together with parts bearing UL recognition, CECC release or customer approvals.

Physical Data

Dimensions (mm)

Size

Code

H max

D nom

13.4 0.2

See

6.25

6.9

See

4.5 0.6

6.5 0.6

0.8

18.7 0.2 product

18.7 0.2 datasheet

product

7.9

datasheet 6.5 0.6

Recommended Pad Sizes

Dimensions (mm)

A min

5.5

B min

2.5

C max

D min

Size Code

7.5

2.5

7.5

2.5

Application Notes

Z-form resistors are supplied in reeled blister tape for use on a vacuum pick &

place system. A standard flat or MELF nozzle may be used provided the placement

speed is consistent with the mass of the component. Note that, as the format

is designed to give spacing between the underside of the body and the PCB,

these parts are not suitable for adhesive attachment during soldering.

General Note

BI Technologies IRC Welwyn

TT Electronics reserves the right to make changes in product speciﬁcation without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

www.ttelectronics.com/resistors

07.21

中文翻译

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