# Schottky Rectifier, 40 V, 10 A, Single, TO-277B, 3 Pins, 570 mV

![Product image](https://novapart.co/image/farnell:2773736/)

**URL**: https://novapart.co/products/DST1040S/schottky-rectifier-40-v-10-a-single-to-277b-3-pins
**SKU**: DST1040S
**Manufacturer**: LITTELFUSE
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.3510
**Stock**: 10+
**Lead Time**: 204 days (indicative)

## Description

Repetitive Reverse Voltage Vrrm Max:40V; Forward Current If(AV):10A; Diode Configuration:Single; Diode Case Style:TO-277B; No. of Pins:3Pins; Forward Voltage VF Max:570mV; Forward Surge

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| No. Of Pins | 3Pins |
| Product Range | DST |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | TO-277B |
| Diode Configuration | Single |
| Forward Voltage Max | 570mV |
| Forward Surge Current | 150A |
| Average Forward Current | 10A |
| Operating Temperature Max | 150°C |
| Repetitive Peak Reverse Voltage | 40V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2773736/)

**Schottky Barrier Rectifier** 

**DST1040S, 10A, 40V, TO-277B, Single** 

~~RoHS Pb~~ ~~**e3** HFL_1OO~~ 

DST1040S 

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Pin out<br>**----- End of picture text -----**<br>


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Anode 1<br>K<br>Cathode<br>Anode 2<br>**----- End of picture text -----**<br>


**Description** Littelfuse DST series Ultra Low VF Schottky Barrier Rectifier is designed to meet the general requirements of commercial and industry applications by providing high temperature, low leakage and lower VF products. It is suitable for high frequency switching mode power supply, free-wheeling diodes and polarity protection diodes. **Features** ~~**Lo**~~ •   Ultra low forward voltage •   Single die in TO-277B drop Package 

- High frequency operation •   Pb-free E3 means 2nd level interconnect is 

- •   MSL: Level 1 - unlimited Pb-free and the terminal 

- •   High junction finish material is tin(Sn) temperature capability (IPC/ JEDEC J-STD609A.01) 

- •   Trench MOS Schottky technology 

- **Applications** 

- Lo •   Switching mode power •   Free-Wheeling diodes supply •   Polarity Protection Diodes 

- •   DC/DC converters 

   - Polarity Protection Diodes 

|**Maximum Ratings**<br>~~Lo~~|**Maximum Ratings**<br>~~Lo~~|**Maximum Ratings**<br>~~Lo~~|**Maximum Ratings**<br>~~Lo~~|**Maximum Ratings**<br>~~Lo~~|
|---|---|---|---|---|
|Parameters|Symbol|Test Conditions|Max|Unit|
|Peak Inverse Voltage|VRWM|-|40|V|
|Average Forward Current<br>(per device) *|IF(AV)|50% duty cycle @TM=121°C<br>rectangular wave form|10|A|
|Peak One Cycle Non-Repetitive Surge<br>Current (per leg)|IFSM|8.3 ms, half Sine pulse|150|A|



* Mounted on 30 mm x 30 mm pad areas aluminum PCB 

## **Electrical Characteristics** ~~LO~~ 

|Parameters|Symbol|Test Conditions|Typ|Max|Unit|
|---|---|---|---|---|---|
|Forward Voltage Drop (per leg) *|VF1<br>VF2|@5A, Pulse, TJ= 25 °C<br>@10A, Pulse, TJ= 25 °C<br>@5A, Pulse, TJ= 125 °C<br>@10A, Pulse, TJ= 125 °C|0.43<br>0.49<br>0.33<br>0.41|-<br>0.57<br>-<br>-|V|
|Reverse Current (per leg) *|IR1<br>IR2|@VR= rated VR,TJ= 25 °C<br>@VR= rated VR,TJ= 125 °C|0.017<br>15|0.80<br>100|mA|
|Junction Capacitance (per leg)|CT|@VR= 5V, TC= 25 °C, fSIG = 1MHz|639|-|pF|



* Pulse Width < 300μs, Duty Cycle <2% 

©2017 Littelfuse, Inc Specifications are subject to change without notice. Revised:03/16/17 

## **Schottky Barrier Rectifier DST1040S, 10A, 40V, TO-277B, Single** 

|**Thermal-Mechanical Specifications**|**Thermal-Mechanical Specifications**||||
|---|---|---|---|---|
|Parameters|Symbol|Test Conditions|Max|Unit|
|Junction Temperature|TJ||-55 to +150|°C|
|Storage Temperature|Tstg||-55 to +150|°C|
|Typical Thermal Resistance|RthJM|DC operation|4|°C/W|
|Approximate Weight|wt||0.08|g|
|Case Style||TO-277B|||



Mounted on 30 mm x 30 mm aluminum PCB; thermal resistance RthJM - junction to mount 

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Figure 1: Typical Forward Characteristics<br>**----- End of picture text -----**<br>


**Figure 2:  Typical Reverse Characteristics** 

**Figure 3:  Typical Junction Capacitance** 

©2017 Littelfuse, Inc Specifications are subject to change without notice. Revised:03/16/17 

**Schottky Barrier Rectifier DST1040S, 10A, 40V, TO-277B, Single** 

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**----- Start of picture text -----**<br>
Dimensions-TO-277B<br>nd<br>Millimeters<br>D Symbol<br>Min Typ Max<br>| A 6.30 6.50 6.70<br>C<br>B 3.88 3.98 4.08<br>A C 0.95 1.10 1.25<br>E M D 0.20 0.25 0.30<br>E 5.28 5.38 5.48<br>F 3.40 3.55 3.70<br>L G 2.90 3.05 3.20<br>K H H 1.74 1.84 1.94<br>G<br>B I 1.10 1.25 1.40<br>J - 0.85 -<br>K 1.70 1.80 1.90<br>L 0.85 0.90 0.95<br>I M - 0.56 -<br>J F<br>Part Numbering and Marking System<br>| ee<br>DST           = Device Type<br>10               = Forward Current (10A)<br>40              = Reverse Voltage (40V)<br>Packing Options DST1040S6<br>S                = Package Type<br>LF              = Littelfuse<br>   LF  YYWWL<br>Part Number Marking Packing Mode M.O.Q YY              = Year<br>WW            = Week<br>DST1040S DST1040S 5000pcs / Reel 5000<br>**----- End of picture text -----**<br>


L                 = Lot Number 

## ~~EE~~ **Carrier Tape & Reel Specification** 

|Symbol|~~|~~|Millimeters<br>Min<br>Max<br>~~|~~|Millimeters<br>Min<br>Max<br>~~|~~|
|---|---|---|---|
|**A**<br>**B**<br>**d**<br>**d1**<br>**E**<br>**F**||4.28<br>6.80<br>1.40<br>-<br>1.65<br>5.40|4.48<br>7.00<br>1.60<br>1.50<br>1.85<br>5.60|
|**P**||7.90|8.10|
|**P0**||3.90|4.10|
|**W**||11.70|12.30|



©2017 Littelfuse, Inc Specifications are subject to change without notice. Revised:03/16/17 



## Links

- [View this product on Novapart](https://novapart.co/products/DST1040S/schottky-rectifier-40-v-10-a-single-to-277b-3-pins)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/littelfuse/dst1040s/schottky-rect-40v-10a-to-277b/dp/2773736)
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