3-104-513

**Thermofuses** 

RTS 

https://www.schurter.com /PG22 

SMD thermal fuse for high currents 

>210°C 

>175°C 

## With Shunt 

## up to 60 VDC ·  >175°C or >210°C  · PCB, SMT 

See below: 

**Approvals and Compliances** 

## **Description** 

- Patented surface mount thermal fuse to protect against thermal runaway of power semiconductors such as: MOSFET's, IC's, IGBT's, Triac's, SCR's, etc. 

- Highest reliability thanks to complete galvanic Separation. 

## **Unique Selling Proposition** 

- Separates rated voltages up to 60 VDC 

- Reflow compatible through mechanical activation procedure 

- Galvanic separation happens inside the RTS housing 

- Space-saving thanks to integrated shunt 

## **Applications** 

- Wherever power transistors are used 

- Automotive: Cooling fan applications, ABS power steering, PTC heaters, HVAC, Glow plugs, Diesel fuel heaters 

- Industrial: Battery Protection, Power supplies, Lighting ballasts, H- Bridge circuits, Motor drivers 

## **Other versions on request** 

- Thermal protection with integrated fuse 

- Thermal protection with customer specific resistance 

- Thermal protection with customer specific tripping temperature 

## **Weblinks** 

pdf data sheet, html datasheet, General Product Information, DistributorStock-Check, Detailed request for product, Landing Page, Video 

## **Technical Data** 

|Rated Voltage|up to 60 VDC|
|---|---|
|Breaking Capacity|up to 400 A|
|Mounting|PCB,SMT|
|Tripping temperature|>175°C or >210°C|
|Material: Housing|Plastics|
|Material: Terminals|Copper alloy, tin-plated|
|Unit Weight|0.75 g|
|Storage Conditions|0°C to 40°C, max. 70% r.h.|
|Product Marking|Variant Code, Lot no.|
|Activation force|Fa=max. 50 N|
|Activation distance|Sa=1.1 +0.3/-0.1 mm|
|Maximum reflow temperature|260°C (peak)|



|Soldering Methods|Reflow|
|---|---|
||Soldering Profile|
|Solderability|JESD22-B102E, Method 1|
|Resistance to Soldering Heat|JEDEC J-STD-020|
|Moisture Sensitivity Level|MSL 1, J-STD-020|
|Damp heat, steady state|MIL-STD-202, Method 103|
|Thermal Shock|MIL-STD-202, Method 107|
|Operational Life|MIL-STD-202, Method 108 Condition D|
|Vibration, High Frequency|MIL-STD-202, Method 204 Condition D|
|Mechanical Shock|MIL-STD-202, Method 213 Condition B|
|Resistance to Solvents|MIL-STD-202, Method 215|
|Temperature Cycling|JESD22, Method JA-104 Condition G|
|Flame Retardance|AEC-Q200-001 + SAG Specification|
|Board Flex|AEC-Q200-005|
|Terminal Strength|AEC-Q200-006|



## **Approvals and Compliances** 

Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in  Details about Approvals 

SCHURTER products are designed for use in industrial environments. They have approvals from independent testing bodies according to national and international standards. Products with specific characteristics and requirements such as required in the automotive sector according to IATF 16949, medical technology according to ISO 13485 or in the aerospace industry can be offered exclusively with customer-specific, individual agreements by SCHURTER. 

## **Application standards** 

Application standards where the product can be used 

|**Organization**|**Design**|**Standard**|**Description**|
|---|---|---|---|
||Suitable for applications acc.|IEC/UL 62368-1|Audio/video, information and communication technology equipment - Part|
||||1: Safety requirements|



Circuit Protection 

**1** 

**Thermofuses** https://www.schurter.com /PG22 

RTS 

## **Compliances** 

The product complies with following Guide Lines 

**Identification Details Initiator** RoHS SCHURTER AG REACH SCHURTER AG **AEC** Automotive SCHURTER AG **Q200** 

## **Description** 

Directive RoHS 2011/65/EU, Amendment (EU) 2015/863 

On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration, Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as "REACH") entered into force. 

AEC-Q200 is a test standard for passive components used in automotive applications. SCHURTER tests components according to the customer's agreement and is certified according to IATF 16949. 

## **Dimension [mm]** 

## Reflow soldering pads 

**==> picture [365 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
Without Shunt<br>8.7<br>2.9 2.9 2.9<br>To an<br>8.8 ±0.1 6.6 With Shunt<br>3.1 7.1<br>2.1 2.9 2.1<br>es ot 1<br>4.8<br>+0.15 0 +0.1 0<br>6.7 0.2<br>±0.1<br>6.6 4.5 4.8<br>**----- End of picture text -----**<br>


## Activation status 

## Activation specification 

## Deactivated: 

Before reflow the activation button should not be manipulated with a force greater 5 newton. 

## Activated: 

Activation after reflow is necessary for the tripping functionality of the RTS. This activation is done by mechanically pressing the activation button with max 50 newton. 

**==> picture [168 x 88] intentionally omitted <==**

**----- Start of picture text -----**<br>
Fa = max. 50 N<br>1 ne<br>Ø4 Ø4<br> mm<br>+0.3 / -0.1<br>Sa = 1.1<br>**----- End of picture text -----**<br>


Circuit Protection 

**2** 

**Thermofuses** 

RTS 

https://www.schurter.com /PG22 

## **Diagrams** 

**==> picture [515 x 287] intentionally omitted <==**

**----- Start of picture text -----**<br>
Thermofuse heat source<br>(e.g. failed Power-FET)<br>ϑ<br>Thermal<br>Coupling<br>Battery Load<br>Derating Curves<br>Derating Curve without Shunt (RTS-AC100)  Derating Curve with Shunt (RTS-AS500)<br>Allowable Ambient Temperature Allowable Ambient Temperature<br>160 160<br>3.)<br>1.)    70 µm Single-Layer 1.)    70 µm Single-Layer<br>120 2.) 2.)    140 µm Single-Layer3.)    210 µm Single-Layer 120 3.) 2.)    140 µm Single-Layer3.)    210 µm Single-Layer<br>2.)<br>  80 1.)   80<br>1.)<br>  40   40<br>    0     0<br>-40          0           40          80        120     160       200      240 -40          0           40          80        120     160       200      240<br>Ambient Temperature [°C]  Ambient Temperature [°C]<br>Operating current [A] Operating current [A]<br>Tripping Temperature >210°C Tripping Temperature >210°C<br>**----- End of picture text -----**<br>


## Derating Curve without Shunt (RTS-BC100) 

**==> picture [226 x 119] intentionally omitted <==**

**----- Start of picture text -----**<br>
Allowable Ambient Temperature<br>160<br>1.)    70 µm Single-Layer<br>120 3.) 2.)    140 µm Single-Layer<br>3.)    210 µm Single-Layer<br>2.)<br>  80<br>1.)<br>  40<br>    0<br>-40          0           40          80        120     160       200      240<br>Ambient Temperature [°C]<br>Operating current [A]<br>Tripping Temperature >175°C<br>**----- End of picture text -----**<br>


## Derating Curve with Shunt (RTS-BS500) 

**==> picture [227 x 119] intentionally omitted <==**

**----- Start of picture text -----**<br>
Allowable Ambient Temperature<br>160<br>1.)    70 µm Single-Layer<br>120 2.)    140 µm Single-Layer<br>3.)    210 µm Single-Layer<br>3.)<br>  80 2.)<br>1.)<br>  40<br>    0<br>-40          0           40          80        120     160       200      240<br>Ambient Temperature [°C]<br>Operating current [A]<br>Tripping Temperature >175°C<br>**----- End of picture text -----**<br>


## Design-In Principles 

- The RTS should be placed as close as possible to the heat source (power semiconductor). 

- Max. nominal current depends on ambient temperature and on the PCB track implementation (see Derating Curves). 

- The derating curves were generated using a PCB acc. to IEC 60127-4 with a layer width of 20 mm. 

- If operating current is higher than allowed, consider using two RTS in parallel. This doubles the max. current value in the derating curve. 

## Temperature Uniformity of Resistance 

**==> picture [228 x 119] intentionally omitted <==**

**----- Start of picture text -----**<br>
70<br>50<br>30<br>10<br>-10<br>-30<br>-40          -10            20            50            80           110               150<br>Ambient Temperature [°C]<br>Shunt<br>Deviation of resistance [%] Without Shunt<br>**----- End of picture text -----**<br>


Circuit Protection 

**3** 

**Thermofuses** 

RTS 

https://www.schurter.com /PG22 

## **All Variants** 

**==> picture [515 x 99] intentionally omitted <==**

**----- Start of picture text -----**<br>
Variant Code Tripping temperature Breaking Capacity Shunt Cold Resistance [µ Ω ] Allowable Operation  Packaging unit [PCS] Order Number<br>Temperature<br>RTS-AC100 >210°C 1) 90 - 110 -40°C to +150°C 100 3-104-513<br>RTS-AC100 >210°C 1) 90 - 110 -40°C to +150°C 750 3-104-514<br>RTS-AS500 >210°C 1) l 500 - 580 -40°C to +150°C 100 3-119-589<br>RTS-AS500 >210°C 1) l 500 - 580 -40°C to +150°C 750 3-119-590<br>RTS-BC100 >175°C 2) 90 - 110 -40°C to +125°C 100 3-134-780<br>RTS-BS500 >175°C 2) l 500 - 580 -40°C to +125°C 100 3-134-804<br>**----- End of picture text -----**<br>


Availability for all products can be searched real-time:https://www.schurter.com/en/Stock-Check/Stock-Check-SCHURTER 

1) Breaking Capacity: 400 A @ 24 VDC (L/R < 0.3ms) / 260 A @ 52 VDC (L/R < 0.2ms) / 170 A @ 60 VDC (L/R < 0.1ms) 

2) Breaking Capacity: 400 A @ 24 VDC (L/R < 0.3ms) 

**Packaging Unit** acc. IEC 60286-3 Type 2a 

100 pcs. in tape [W: 16mm and P1: 12mm] on reel [A: 18cm] 750 pcs. in tape [W: 16mm and P1: 12mm] on reel [A: 33cm] 

The specifications, descriptions and illustrations indicated in this document are based on current ~~information. All content is subject to modifications and amendments. Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability and test each product selected for their own applications.~~ 

Circuit Protection 

**4**