1870450000

**Data sheet** ~~aeLUlUlCCCCWeidmiilWeidmii~~ ~~**l** lerer =3~~ **LSF-SMT 3.50/20/90 3.5SN BK TU Weidmüller Interface GmbH & Co. KG** 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 26 D-32758 Detmold Germany 

www.weidmueller.com 

## **Product image** 

PCB terminal for fully automatic assembly in reflow soldering (SMT), with PUSH IN conductor connection system. Conductor inserted and slider operated in same direction (TOP). Packed in box or as tape on reel. Pin lengths optimised at 1.5 mm or 3.5 mm. 

## **General ordering data** 

|Version|Printed circuit board terminals, 3.50 mm, Number|
|---|---|
||of poles: 20, 90°, Solder pin length (l): 3.5 mm,|
||black, PUSH IN with actuator, Clamping range,|
||max. : 1.5 mm², Tube|
|Order No.|1870450000|
|Type|LSF-SMT 3.50/20/90 3.5SN BK TU|
|GTIN(EAN)|4032248447800|
|Qty.|7pc(s).|
|Product data|IEC: 320 V / 17.5 A / 0.2 - 1.5 mm²|
||UL: 300 V/12 A/AWG 28 - AWG 14|
|Packaging|Tube|



Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

1 

**Data sheet** — **LSF-SMT 3.50/20/90 3.5SN BK TU** 

## **Weidmüller Interface GmbH & Co. KG** 

Klingenbergstraße 26 D-32758 Detmold Germany 

## **Technical data** ~~Ld~~ 

~~a~~ www.weidmueller.com 

## **Dimensions and weights** 

|Depth|14.75 mm|
|---|---|
|Height|12 mm|
|Height of lowest version|8.5 mm|
|Width (inches)|2.783 inch|



|Depth(inches)|0.581 inch|
|---|---|
|Height(inches)|0.472 inch|
|Width|70.7 mm|
|Net weight|15 g|



## **Temperatures** 

Continuous operating temp., max. 120 °C 

## **System parameters** 

|Product family|OMNIMATE Signal - series|Wire connection method||
|---|---|---|---|
||LSF||PUSH IN with actuator|
|Mounting onto the PCB|THT/THR solder|Conductor outlet direction||
||connection||90°|
|Pitch in mm(P)|3.5 mm|Pitch in inches(P)|0.138 inch|
|Number ofpoles|20|Pin seriesquantity|1|
|Fitted bycustomer|No|Number of rows|1|
|Solderpin length(l)|3.5 mm|Solderpin length tolerance|0/-0.3 mm|
|Solderpin dimensions|0.35 x 0.8 mm|Solderpin dimensions = d tolerance|0/-0.1 mm|
|Solder eyelet hole diameter(D)|1.1 mm|Solder eyelet hole diameter tolerance(D)<br>+ 0,1 mm||
|Number of solderpinsperpole|2|Strippinglength|8 mm|
|L1 in mm|66.5 mm|L1 in inches|2.618 inch|
|Touch-safe protection acc. to DIN VDE||Touch-safe protection acc. to DIN VDE||
|0470|IP 20|57 106|Safe from finger touch|
|Protection degree|IP20|Volume resistance|1.60 mΩ|
|**Material data**||||
|Insulatingmaterial|LCP GF|Colour|black|
|Colour chart(similar)|RAL 9011|Insulatingmaterialgroup|IIIa|
|Comparative TrackingIndex(CTI)|≥ 175|Moisture Level(MSL)|1|
|UL 94 flammabilityrating|V-0|Contact material|Cu-alloy|
|Layer structure of solder connection|4...6µm Sn matt|Storage temperature,min.|-40 °C|
|Storage temperature,max.|70 °C|Operatingtemperature,min.|-50 °C|
|Operatingtemperature,max.|120 °C|Temperature range,installation,min.|-30 °C|



|Insulatingmaterial|LCP GF|
|---|---|
|Colour chart(similar)|RAL 9011|
|Comparative TrackingIndex(CTI)|≥ 175|
|UL 94 flammabilityrating|V-0|
|Layer structure of solder connection|4...6µm Sn matt|
|Storage temperature,max.|70 °C|
|Operatingtemperature,max.|120 °C|
|Temperature range, installation, max.|120 °C|



## **Conductors suitable for connection** 

|Clampingrange,min.|0.13 mm²|
|---|---|
|Clampingrange,max.|1.5 mm²|
|Wire connection cross section AWG,|AWG 28|
|min.||
|Wire connection cross section AWG,|AWG 14|
|max.||
|Solid,min. H05(07)V-U|0.2 mm²|
|Solid,max. H05(07)V-U|1.5 mm²|
|Flexible,min. H05(07)V-K|0.2 mm²|
|Flexible,max. H05(07)V-K|1.5 mm²|
|w. plastic collar ferrule, DIN 46228 pt 4,|0.25 mm²|
|min.||
|w. plastic collar ferrule, DIN 46228 pt 4,|0.75 mm²|
|max.||
|w. wire end ferrule, DIN 46228 pt 1,|0.25 mm²|
|min.||



Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

2 

**Data sheet** — **LSF-SMT 3.50/20/90 3.5SN BK TU** 

## **Weidmüller Interface GmbH & Co. KG** 

Klingenbergstraße 26 D-32758 Detmold Germany 

## ~~a~~ www.weidmueller.com 

|**Technical data**<br>~~Le~~|**Technical data**<br>~~Le~~|www.weidmueller.com<br>~~a~~|www.weidmueller.com<br>~~a~~|
|---|---|---|---|
||w. wire end ferrule, DIN 46228 pt 1,|w. wire end ferrule, DIN 46228 pt 1,<br>1.5 mm²||
||max.|||
||Clampable conductor|Cross-section for conductor connection<br>Type|fine-wired|
|||nominal|0.25 mm²|
||Reference text|wire end ferrule<br>Strippinglength<br>nominal<br>10 mm<br>Recommended wire-<br>end ferrule<br>H0,25/12 HBL<br>Cross-section for conductor connection<br>Type<br>fine-wired<br>nominal<br>0.34 mm²<br>wire end ferrule<br>Strippinglength<br>nominal<br>10 mm<br>Recommended wire-<br>end ferrule<br>H0,34/12 TK<br>Cross-section for conductor connection<br>Type<br>fine-wired<br>nominal<br>0.5 mm²<br>wire end ferrule<br>Strippinglength<br>nominal<br>10 mm<br>Recommended wire-<br>end ferrule<br>H0,5/14 OR<br>Cross-section for conductor connection<br>Type<br>fine-wired<br>nominal<br>0.75 mm²<br>wire end ferrule<br>Strippinglength<br>nominal<br>10 mm<br>Recommended wire-<br>end ferrule<br>H0,75/14T HBL<br>Length of ferrules is to be chosen depending on the product and the rated voltage., The outside<br>~~ee~~<br>~~a~~<br>~~ee~~<br>~~ee~~<br>~~—~~<br>~~ee~~<br>~~ee~~<br>~~a~~<br>~~|~~<br>~~C‘i‘sizC~~<br>~~ee~~<br>~~—~~||
|||diameter of the plastic collar should not be larger than the pitch (P)||
||**Rated data acc. to IEC**|||
||tested acc. to standard|Rated current, min. number of poles||
|||IEC 60664-1,IEC 61984<br>(Tu=20°C)|17.5 A|
||Rated current, max. number of poles<br>Rated current, min. number of poles|||
||(Tu=20°C)|16 A<br>(Tu=40°C)|17.5 A|
||Rated current, max. number of poles<br>Rated voltage for surge voltage class /|||
||(Tu=40°C)|14 A<br>pollution degree II/2|320 V|
||Rated voltage for surge voltage class /<br>Rated voltage for surge voltage class /|||
||pollution degree III/2|160 V<br>pollution degree III/3|160 V|
||Rated impulse voltage for surge voltage<br>Rated impulse voltage for surge voltage|||
||class/ pollution degree II/2|2.5 kV<br>class/ pollution degree III/2|2.5 kV|
||Rated impulse voltage for surge voltage<br>Short-time withstand current resistance|||
||class/ contamination degree III/3|2.5 kV|3 x 1s with 80 A|
||**Rated data acc. to CSA**|||
||Institute (CSA)|Certificate No. (CSA)<br>Co|200039-1664286|
||Rated voltage(UsegroupB/CSA)<br>300 V<br>Rated voltage(UsegroupD/CSA)||300 V|
||Rated current(UsegroupB/CSA)<br>10 A<br>Rated current(UsegroupD/CSA)||10 A|
||Wire cross-section,AWG,min.|AWG 28<br>Wire cross-section,AWG,max.|AWG 14|
||Reference to approval values|Specifications are||
|||maximum values, details -||
|||see approval certificate.||



Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

3 

**Data sheet** 

**LSF-SMT 3.50/20/90 3.5SN BK TU** 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 26 D-32758 Detmold Germany 

## **Technical data** ~~Ss~~ 

www.weidmueller.com 

## **Rated data acc. to UL 1059** 

|**Type tests**|||
|---|---|---|
|Test: Durability of markings|Test<br>mark of origin, type identification, pitch,<br>durability||
||Evaluation<br>available||
||Test<br>approval markingUL||
||Evaluation<br>onpackaginglabel||
|Test: Clampable cross section|Standard<br>DIN EN 60999-1 section 7 and 9.1 / 12.00, DIN<br>EN 60947-1 section 8.2.4.5.1/12.02||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>solid 0.14 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>stranded 0.14 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>solid 1.5 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>stranded 1.5 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 24/1|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 24/19|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 16/1|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 16/19|
||Evaluation<br>passed||



Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

4 

**Data sheet** — 

## **LSF-SMT 3.50/20/90 3.5SN BK TU** 

## **Weidmüller Interface GmbH & Co. KG** 

Klingenbergstraße 26 D-32758 Detmold Germany 

~~a~~ www.weidmueller.com 

|**Technical data**<br>~~Ld~~|www.weidmueller.com<br>~~a~~|www.weidmueller.com<br>~~a~~|
|---|---|---|
|Test for damage to and accidental<br>loosening of conductors|Standard<br>DIN EN 60999-1 section 9.4/12.00||
||Requirement<br>0.2 kg||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>AWG 24/1|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 24/19|
||Evaluation<br>passed||
||Requirement<br>0.3 kg||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>stranded 0.25 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>solid 0.5 mm²|
||Evaluation<br>passed||
||Requirement<br>0.4 kg||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>solid 1.5 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>stranded 1.5 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 16/1|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 16/19|
||Evaluation<br>passed||
|Pull-out test|Standard<br>DIN EN 60999-1 section 9.5/12.00||
||Requirement<br>≥10 N||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>AWG 24/1|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 24/19|
||Evaluation<br>passed||
||Requirement<br>≥20 N||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>stranded 0.25 mm²|
|||Type of conductor<br>and conductor cross-<br>section<br>H05V-U0.5|
||Evaluation<br>passed||
||Requirement<br>≥40 N||
||Conductor type|Type of conductor<br>and conductor cross-<br>section<br>H07V-U1.5|
|||Type of conductor<br>and conductor cross-<br>section<br>H07V-K1.5|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 16/1|
|||Type of conductor<br>and conductor cross-<br>section<br>AWG 16/19|
||Evaluation<br>passed||



Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

5 

**Data sheet** 

## **LSF-SMT 3.50/20/90 3.5SN BK TU** 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 26 D-32758 Detmold Germany 

## **Technical data** ~~ass~~ 

~~a~~ www.weidmueller.com 

## **Classifications** 

|ETIM 6.0|EC002643|ETIM 7.0|EC002643|
|---|---|---|---|
|ETIM 8.0|EC002643|ETIM 9.0|EC002643|
|ECLASS 9.0|27-44-04-01|ECLASS 9.1|27-44-04-01|
|ECLASS 10.0|27-44-04-01|ECLASS 11.0|27-46-01-01|
|ECLASS 12.0|27-46-01-01|ECLASS 13.0|27460101|



## **Important note** 

|IPC conformity|Conformity: The products are developed, manufactured and delivered according international recognized|
|---|---|
||standards and norms and comply with the assured properties in the data sheet resp. fulfill decorative properties|
||in accordance with IPC-A-610 "Class 2". Further claims on theproducts can be evaluated on request.|
|Notes|• Additional push button colours on request|



- Operating force of slider max. 40 N 

- Rated current related to rated cross-section & min. No. of poles. 

- Wire end ferrule with plastic collar to DIN 46228/4 

- Wire end ferrule without plastic collar to DIN 46228/1 

- P on drawing = pitch 

- Rated data refer only to the component itself. Clearance and creepage distances to other components are to be designed in accordance with the relevant application standards. 

- Crimping shape "A" for wire end ferrules with PZ 6/5 crimping tool recommended. 

- Long term storage of the product with average temperature of 50 °C and maximum humidity 70%, 36 months 

## **Approvals** 

|**Approvals**||
|---|---|
|Approvals|@cALis|
|ROHS|Conform|
|UL File Number Search|UL Website|
|Certificate No. (cURus)|E60693|



Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

6 

**Data sheet** — **LSF-SMT 3.50/20/90 3.5SN BK TU** 

## **Weidmüller Interface GmbH & Co. KG** 

Klingenbergstraße 26 D-32758 Detmold Germany 

## **Technical data** ~~Ld~~ 

~~a~~ www.weidmueller.com 

## **Downloads** 

|Approval/Certificate/Document of||
|---|---|
|Conformity|Declaration of the Manufacturer|
|EngineeringData|CAD data--STEP|
|Product Change Notification|Capacity expansion of LSF-SMT stamping tools|
||Kapazitätserweiterung der Stanzwerkzeuge LSF-SMT|
|Catalogues|Catalogues in PDF-format|
|Brochures|FL DRIVES EN|
||FL ANALO.SIGN.CONV. EN|
||MB SMT EN|
||FL DRIVES DE|
||MB DEVICE MANUF. EN|
||FL BUILDING SAFETY EN|
||FL APPL LED LIGHTING EN|
||FL INDUSTR.CONTROLS EN|
||FL MACHINE SAFETY EN|
||FL HEATING ELECTR EN|
||FL APPL_INVERTER EN|
||FL_BASE_STATION_EN|
||FL ELEVATOR EN|
||FL POWER SUPPLY EN|
||FL 72H SAMPLE SER EN|
||PO OMNIMATE EN|
||PO OMNIMATE EN|



White paper surface mount technology Download Whitepaper 

Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

7 

**Data sheet** 

## **LSF-SMT 3.50/20/90 3.5SN BK TU** 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 26 D-32758 Detmold Germany 

www.weidmueller.com 

## **Drawings** 

## **Product image** 

**Graph** 

## **Dimensional drawing** 

**Graph** 

Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

8 

**Data sheet** 

**LSF-SMT 3.50/20/90 3.5SN BK TU** 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 26 D-32758 Detmold Germany 

## **Accessories** ~~Ls~~ 

www.weidmueller.com 

## **Slotted screwdriver** 

Slotted screwdriver with rounded blade SD DIN 5265, ISO 2380/2, output to DIN 5264, ISO 2380/1. ChromTop tip, SoftFinish grip 

## **General ordering data** 

Type SDS 0.4X2.5X75 Version Order No. 9009030000 Screwdriver, Screwdriver GTIN (EAN) 4032248266944 Qty. 1 pc(s). 

## **Slotted screwdriver** 

VDE insulated slot-head screwdriver, SDI DIN 7437, ISO 2380/2, drive output acc. to DIN 5264, ISO 2380/1. SoftFinish grip 

## **General ordering data** 

Type SDIS 0.4X2.5X75 Version Order No. 9008370000 Screwdriver, Screwdriver GTIN (EAN) 4032248056330 Qty. 1 pc(s). 

Creation date December 4, 2023 3:49:38 PM CET 

Catalogue status 24.11.2023 / We reserve the right to make technical changes. 

9 

## 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 16 D-32758 Detmold Germany Fon: +49 5231 14-0 Fax: +49 5231 14-292083 www.weidmueller.com 

## **Single Wave:** 

**==> picture [432 x 446] intentionally omitted <==**

**----- Start of picture text -----**<br>
Contact time appr. 3 sec.<br>260 255 °C o s , 260 °C<br>240 250 °C I ~,.N\<br>\ [‘]<br>220 \\ [N] N [N] N<br>LON<br>200180 .\1\\ [.][N] SS\SsN.<br>160 \\\Str ‘\‘S‘S<br>wT “oy, “w<br>140 od° oNs\ "he,a> S.ss<br>12010080 Preheating :o.;7” .’Pua&&Pia4.-As-A.ue<ormeee7eeerrccCi7”Y11hae.~s- 7   appr. 150 °C \ny\\ny\\‘ wy£2.2>""y“ Cooling rate < 6 °K/s SS“>soy.‘s>“sDo~aTa“ss—m~. =~areTaaaooo-<br>;Fe ./4 -.- S.‘<br>6040 ¢Fa¢?me47soMosenooheSa--o “7“7“ ‘‘‘s.SS —=a-. Typical process        Prozess limits<br>20 Sa Heating rate < 3 °K/s “es Temperature on board<br>0<br>0  20  40  60  80  100  120  140  160  180  200  220  240<br>time [s]<br>Double Wave:<br>260 255 °C — 260 °C<br>Total contact time max. 10 sec. Q 250 °C<br>240<br>220<br>200<br>180<br>\<br>160 eee sue\\<br>140120100 Preheating a?’.a”oa a..ue °°&.SS£ 7*.“eS?ny“ocd;7 appr. 150°C [RO\‘\‘\‘‘ NS>NOS.°WSesyO~~>-°°~~ ~~~<br>8060 a?-o7747 *Aefre/&°oo&&4aea7”’ \‘‘‘‘\ Cooling rate < 6 °K/s ‘‘ >cS““Sse°“asD>,-_;-:<br>o* A. “ Typical process<br>40 Prie"7-- neeiteer<r — Process limits<br>20 Heating rate < 3 °K/s Temperature on board<br>0<br>0  20  40  60  80  100  120  140  160  180  200  220  240<br>time [s]<br>Temperature [°C]<br>Temperature  [°C]<br>**----- End of picture text -----**<br>


## 

Wired connection elements should be processed in accordance with the DIN EN 61760-1 standard. We have included two recommendations for practical wave soldering profiles, with which Weidmüller PCB terminals and connectors are qualified. 

- PCB thickness 

- Proportion of Cu in the layers 

- Single/double-sided assembly 

- Product range 

- Heating and cooling rates 

soldering temperature of 260°C. In practice, the maximum soldering temperature is quite often well below the above maximum profile. 

We reserve the right to make technical changes. 

## 

**Weidmüller Interface GmbH & Co. KG** Klingenbergstraße 16 D-32758 Detmold Germany Fon: +49 5231 14-0 Fax: +49 5231 14-292083 www.weidmueller.com 

**==> picture [510 x 255] intentionally omitted <==**

**----- Start of picture text -----**<br>
300<br>oe 254 °C<br>250 245 °C - aa<br>235 °C oo x<br>Melting point lead-free solder paste<br>217 o awe Ss<br>190 °C approx.  XN XN<br>200 vane yr 60 s > 217 °C XN<br>XN \<br>180 °C Pad , N \<br>----7 _-7 \ \ \ \<br>150 77 \ N\<br>preheating , o7 a Cooling rate: < 6 °K/s . ‘ \<br>100 o \<br>of \<br>o a \<br>aa Heating rate: < 3 °K/s \<br>a \<br>50 &<br>a<br>& — Continuous line: Typical process<br>a 7 -_ — Dotted line:   Process limits<br>0<br>0  50  100  150  200  250  300  350<br>Temperature [°C]<br>**----- End of picture text -----**<br>


**Time [sec]** 

## 

But there are more than one correct answer: The diagram of temperature-on-time is related to processing features of solder paste and to maximum load of components. 

We have to consider the following parameters: 

- Time for pre heating 

- Maximum temperature 

- Time above melting point 

- Time for cooling 

- Maximum heating rate 

- Maximum cooling rate 

prepared smoothly for the solder phase. Heating rate is typically  ≤ +3K/s. In parallel the solder paste is ‚activated’. The time above melting point of 217°C the paste gets liquid and components and boards begin to connect. The maximum temperature of 245°C to 254°C should stay between 10 and 40 seconds. In the cooling phase at ≥ -6K/s solder is cured. Board and components cool down while avoiding cold cracks. 

We reserve the right to make technical changes.