TMBAT49FILM

**TMBAT49** 

Small si nal Schottk diode g y 

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## **Features** 

- very low turn-on voltage 

- fast switching 

## **Description** 

The TMBAT49 is a general purpose metal to silicon diode. This device has integrated protection against excessive voltage such as electrostatic discharges. 

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MELF<br>(glass)<br>**----- End of picture text -----**<br>


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_www.st.com_ 

**Characteristics** 

**TMBAT49** 

## **1 Characteristics** 

## **Table 1. Absolute ratings (limiting values)** 

|**Table 1.**|**Absolute ratings (limiting values)**|**Absolute ratings (limiting values)**|||
|---|---|---|---|---|
|**Symbol**|**Parameter**||**Value**|**Unit**|
|VRRM|Repetitive peak reverse voltage||80|V|
|IF|Forward continuous current|Tj= 70 °C|500|mA|
|IFRM|Repetitive peak forward current|tp= 1 s<br>δ ≤0.5|3|A|
|IFSM|Surge non repetitive forward current|tp= 10 ms|10|A|
|Tstg|Storage temperature range||- 65 to +150|°C|
|Tj|Operating junction temperature range||- 65 to +125|°C|
|TL|Maximum lead soldering temperature during 15 s||260|°C|
|**Table 2.**<br>**Thermalparameter**|||||
|**Symbol**|**Parameter**||**Value**|**Unit**|
|Rth(j-l)|Junction to lead||110|°C/W|



## **Table 3. Static electrical characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR<br>(1)|Reverse leakage current|Tj= 25 °C|VR= 80 V|-|-|200|µA|
|VF<br>(1)|Forward voltage drop|Tj= 25 °C|IF= 10 mA|-|-|0.32|V|
||||IF= 100 mA|-|-|0.42||
||||IF= 1 A|-|-|1||



|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|1.<br>Pulse test: tp ≤300 µs,δ< 2%<br>**Table 4.**<br>**Dynamic characteristics(Tj = 25 °C)**|
|---|---|---|---|---|---|---|---|
|**Symbol**|**Parameter**|**Test conditions**||**Min.**|**Typ.**|**Max.**|**Unit**|
|C|Diode capacitance|F = 1 MHz|VR= 0 V|-|120|-|pF|
||||VR= 5 V|-|35|-||



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**Characteristics** 

**TMBAT49** 

**Figure 1. Forward voltage drop versus forward current (typical values, low level)** 

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1.E+03 IFM(mA)<br>1.E+02 Tj = 25 °C<br>1.E+01 Tj = 100 °C Tj = 55 °C<br>1.E+00<br>1.E-01<br>1.E-02 VFM(V)<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8<br>**----- End of picture text -----**<br>


**Figure 2. Forward voltage drop versus forward current (typical values, high level)** 

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10 IFM(A)<br>9<br>8<br>7<br>6<br>5<br>4 Tj = 25 °C<br>3<br>2<br>1<br>0 VFM(V)<br>0.00 0.25 0.50 0.75 1.00 1.25 1.50<br>**----- End of picture text -----**<br>


## **Figure 3. Reverse leakage current versus reverse voltage applied (typical values)** 

**Figure 4. Junction capacitance versus reverse voltage applied (typical values)** 

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1.E+01 IR(mA) 100 C(pF)<br>F = 1 MHz<br>Tj = 125 °C VToscj = 25 °C= 30 mV<br>1.E+00 Tj = 100 °C<br>Tj = 75 °C<br>1.E-01<br>Tj = 50 °C<br>1.E-02 Tj = 25 °C<br>1.E-03 VR(V) 10 VR(V)<br>0 10 20 30 40 50 60 70 80 1 10 100<br>**----- End of picture text -----**<br>


**Figure 5. Non-repetitive peak surge forward Figure 6. Non-repetitive peak surge forward current versus pulse duration current versus number of cycles (square waveform)** 

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25 IFSM(A) 10 IFSM(A)<br>20 tp=10 ms<br>One cycle<br>15<br>10<br>5<br>0 tp(ms) 1 Number of cycles<br>0.1 1.0 10.0 1 10 100<br>**----- End of picture text -----**<br>


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**Package information** 

**TMBAT49** 

## **2 Package information** 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: _www.st.com_ . ECOPACK[®] is an ST trademark. 

**Table 5. MELF package dimensions** 

|||||||**ØB**<br>**C**|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||**A**||||||**Millimeters**|||**Inches**|||
|||||||||||||||
|||||||||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|||||||||||||||
||||||||A|4.80||5.20|0.189||0.205|
|||**ØD**||||||||||||
||||||||ø B|2.50||2.65|0.098||0.104|
|||||||||||||||
||||||||C|0.45||0.60|0.018||0.024|
||**C**||||||ø D||2.50|||0.098||
|||||||||||||||



## **Figure 7. Footprint (dimensions in mm)** 

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3<br>4<br>6.5<br>**----- End of picture text -----**<br>


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**Ordering information** 

**TMBAT49** 

## **3** 

## **Ordering information** 

## **Table 6. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|---|---|---|---|---|---|
|TMBAT49FILM|Cathode ring|MELF (glass)|0.15 g|1500|Bulk|



## **4 Revision history** 

**Table 7. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|Aug-1999|1A|Previous release.|
|12-Nov-2010|2|Added ECOPACK statement. Updated graphics in_Section 1_.|



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**TMBAT49** 

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