# Small Signal Schottky Diode, Dual Series, 40 V, 300 mA, 900 mV, 1 A, 150 °C
**URL**: https://novapart.co/products/BAT54SFILMY/small-signal-schottky-diode-dual-series-40-v-300
**SKU**: BAT54SFILMY
**Manufacturer**: STMICROELECTRONICS
**Price**: €0.0670
**Stock**: 1000+
**Lead Time**: 132 days (indicative)
## Description
Diode Configuration:Dual Series; Repetitive Reverse Voltage Vrrm Max:40V; Forward Current If(AV):300mA; Forward Voltage VF Max:900mV; Forward Surge Current Ifsm Max:1A; Operating T
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | BAT54 |
| Qualification | AEC-Q101 |
| Diode Mounting | Surface Mount |
| Diode Case Style | SOT-23 |
| Diode Configuration | Dual Series |
| Forward Voltage Max | 900mV |
| Forward Surge Current | 1A |
| Reverse Recovery Time | 5ns |
| Average Forward Current | 300mA |
| Operating Temperature Max | 150°C |
| Repetitive Peak Reverse Voltage | 40V |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2629713/)
## **BAT54-Y**
## Automotive small signal Schottky diodes
Datasheet - production data
**==> picture [156 x 62] intentionally omitted <==**
**----- Start of picture text -----**
BAT54FILMY
(single)
BAT54SFILMY
SOT-23
(series)
**----- End of picture text -----**
## **Description**
The BAT54 series use the 40 V Schottky barrier diodes packaged in SOT-23 and SOT-323.
These devices are suitable for automotive applications.
**Table 1: Device summary**
**==> picture [175 x 128] intentionally omitted <==**
**----- Start of picture text -----**
BAT54WFILMY
(single)
BAT54CWFILMY
SOT-323 (common cathode)
BAT54AWFILMY
ra (common anode)
BAT54SWFILMY
oa (series)
Configurations in top view
**----- End of picture text -----**
|**Symbol**|**Value**|
|---|---|
|IF|300 mA|
|VRRM|40 V|
|C (typ.)|7pF|
|Tj(max.)|150 °C|
## **Features**
- AEC-Q101 qualified
- Low conduction and reverse losses
- Negligible switching losses
- Low forward and reverse recovery times
- Extremely fast switching
- Surface mount device
- Low capacitance diode
- PPAP capable
- ECOPACK[®] 2 compliant component
October 2017
DocID17696 Rev 3
1/11
This is information on a product in full production.
_www.st.com_
**Characteristics**
**BAT54-Y**
## **1 Characteristics**
**Table 2: Absolute ratings (limiting values at 25 °C, unless otherwise specified)**
|**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|
|VRRM|Repetitivepeak reverse voltage||40|V|
|IF|Continuous forward current||300|mA|
|IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal|1|A|
|Tstg|Storage temperature range||-65 to +150|°C|
|Tj|Operating junction temperature range_(1)_||-40 to +150|°C|
|TL|Maximum soldering temperature||260|°C|
## **Notes:**
(1)(dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink.
**Table 3: Thermal parameters**
|**Symbol**|**Parameter**||**Value**|**Unit**|
|---|---|---|---|---|
|Rth(j-a)|Junction to ambient_(1)_|SOT-23|500|°C/W|
|||SOT-323|550||
## **Notes:**
(1)Epoxy printed circuit board with recommended pad layout
**Table 4: Static electrical characteristics**
|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR_(1)_|Reverse leakage current|Tj= 25 °C|VR= 30 V|-|-|1|µA|
|||Tj= 100 °C||-|-|100||
|VF_(2)_|Forward voltage drop|Tj= 25 °C|IF= 0.1 mA|-|-|240|mV|
||||IF= 1 mA|-|-|320||
||||IF= 10 mA|-|-|400||
||||IF= 30 mA|-|-|500||
||||IF= 100 mA|-|-|900||
## **Notes:**
(1)Pulse test: tp = 5 ms, δ < 2 %
(2)Pulse test: tp = 380 µs, δ < 2%
**Table 5: Dynamic characteristics**
|**Symbol**|**Parameter**|**Test conditions**|**Min.**|
**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|C|Diode capacitance|VR= 1 V, F = 1 MHz|-|7|10|pF|
|trr|Reverse recovery time|IF= 10 mA, IR= 10 mA, Tj= 25 °C
Irr= 1 mA, RL= 100 Ω|-||5|ns|
2/11
DocID17696 Rev 3
**Characteristics**
**BAT54-Y**
## **1.1 Characteristics (curves)**
**==> picture [462 x 402] intentionally omitted <==**
**----- Start of picture text -----**
Figure 1: Average forward power dissipation
versus average forward current Figure 2: Average forward current versus ambient
temperature (δ = 1)
0.35 P(W) 0.35 IF(AV)(A)
δ= 0.05 δ= 0.2 δ = 0.1 δ= 0.5 δ= 1
0.30 0.30
0.25 0.25
0.20 0.20
0.15 0.15
0.10 T 0.10 T
0.05 0.05
I F(AV) (A) δ [=] [tp/T] tp δ [=tp/T] tp T amb (°C)
0.00 0.00
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35
0 25 50 75 100 125 150
Figure 4: Reverse leakage current versus junction
Figure 3: Reverse leakage current versus reverse temperature
applied voltage (typical values)
1.E+02 IR(µA) 1.E+04 IR[T j] / IR[T j=25°C]
T j = 100 °C VR = 3V
1.E+03
1.E+01
1.E+02
1.E+00 Tj = 50 °C
1.E+01
1.E-01 Tj = 25 °C
1.E+00
VR(V) Tj(°C)
1.E-01
1.E-02
0 25 50 75 100 125 150
0 5 10 15 20 25 30
**----- End of picture text -----**
**==> picture [456 x 175] intentionally omitted <==**
**----- Start of picture text -----**
Figure 5: Junction capacitance versus reverse Figure 6: Forward voltage drop versus forward
applied voltage (typical values) current (typical values)
C(pF) IFM(A)
10 1.E+00
F = 1 MHz Tj = 100 °C
VOSC = 30 mVRMS
T j = 25 °C
1.E-01
1.E-02 T j = 50 °C
Tj = 25 °C
1.E-03 Tj = -40 °C
VR(V)
V FM (V)
1 1.E-04
1 10 100 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
**----- End of picture text -----**
DocID17696 Rev 3
3/11
**Characteristics**
**BAT54-Y**
**Figure 7: Relative variation of thermal impedance junction to ambient versus pulse duration**
**(SOT-23)**
**==> picture [334 x 221] intentionally omitted <==**
**----- Start of picture text -----**
Z /R
th(j-a) th(j-a)
1.E+00
Single pulse
SOT23
1.E-01
Alumine substrate
10 x 8 x 0.5 mm
tP(s)
1.E-02
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02
**----- End of picture text -----**
4/11
DocID17696 Rev 3
**Package** information
**BAT54-Y**
## **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.
- Epoxy meets UL94, V0
- Lead-free packages
## **2.1 SOT23 package information**
**Figure 8: SOT23-3L package outline**
DocID17696 Rev 3
5/11
**Package** information
**BAT54-Y**
**Table 6: SOT23-3L mechanical data**
|**Dim.**
~~es~~|**mm**
~~po~~
~~ee~~|**mm**
~~po~~
~~ee~~|**mm**
~~po~~
~~ee~~|
|---|---|---|---|
||**Min.**
~~po~~
~~es~~|**Typ.**
~~po~~
~~es~~
~~ee~~|**Max.**
~~po~~
~~es~~|
|A
~~es~~|0.89
~~es~~|~~es~~
~~ee~~|1.40
~~es~~|
|A1
~~es~~
~~a~~
~~es~~|0|~~ee~~|0.10|
|B
~~a~~
~~es~~|0.30||0.51|
|C
~~es~~
~~a~~|0.085||0.18|
|D
~~a~~
~~es~~|2.75||3.04|
|e
~~a~~
~~es~~|0.85||1.05|
|e1
~~es~~
~~a~~
~~es~~|1.70||2.10|
|E
~~a~~
~~es~~|1.20||1.75|
|H
~~es~~
~~a~~
~~a~~|2.10
~~ee~~||3.00|
|L
~~a~~
~~a ~~
~~a~~|~~ee~~|0.60||
|S
~~a~~
~~ee~~|0.35
~~ee~~||0.65|
|L1
~~a~~
~~ee~~|0.25
~~ee~~||0.55|
|a
~~ee~~
~~a~~|0°||8°|
**Figure 9: SOT23-3L recommended footprint**
Dimensions are in mm.
~~>~~ 6/11 DocID17696 Rev 3
**Package** information
**BAT54-Y**
## **2.2 SOT323-3L package information**
**Figure 10: SOT323-3L package outline**
7/11 /11 11 ~~a~~
DocID17696 Rev 3 7/11 /11 11
**Package** information
**BAT54-Y**
**Table 7: SOT323-3L package mechanical data**
|**Ref.**||**Dimensions**|**Dimensions**|**Dimensions**|||
|---|---|---|---|---|---|---|
|||**Millimeters**|||**Inches**||
||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|A|0.8||1.1|0.031||0.043|
|A1|0.0||0.1|0.000||0.003|
|b|0.25||0.4|0.0098||0.0157|
|c|0.1||0.26|0.003||0.0102|
|D|1.8|2.0|2.2|0.070|0.078|0.086|
|E|1.15|1.25|1.35|0.0452|0.0492|0.0531|
|e|0.60|0.65|0.70|0.024|0.026|0.028|
|H|1.8|2.1|2.4|0.070|0.082|0.094|
|L|0.1|0.2|0.30|0.004|0.008|0.012|
|ϴ|0||30°|0||30°|
**Figure 11: SOT323-3L recommended footprint in mm (dimensions in inches)**
**==> picture [406 x 145] intentionally omitted <==**
**----- Start of picture text -----**
0.95
(0.037)
1.0 2.9
(0.039) (0.114)
0.8 0.50
(0.031) (0.019)
**----- End of picture text -----**
8/11
DocID17696 Rev 3
**Ordering** information
**BAT54-Y**
## **3 Ordering information**
**Figure 12: Ordering information scheme**
**==> picture [409 x 286] intentionally omitted <==**
**----- Start of picture text -----**
BAT54 xx xx FILM Y
Signal Schottky diodes
VRRM = 40 V
Configuration
No letter = Single diode
A = Common anode
C = Common cathode
S = Series diodes
Package
Blank = SOT-23
W = SOT-323
Packing
FILM = Tape and reel
Automotive grade
**----- End of picture text -----**
**Table 8: Ordering information**
|**Order code**|**Marking**|**Package**|**Weight**|**Base qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|BAT54FILMY|86Y|SOT-23 single|10 mg|3000|Tape and reel|
|BAT54SFILMY|88Y|SOT-23 serial||||
|BAT54WFILMY|73Y|SOT-323 single|6 mg|||
|BAT54CWFILMY|77Y|SOT-323 common cathode||||
|BAT54AWFILMY|74Y|SOT-323 common anode||||
|BAT54SWFILMY|78Y|SOT-323 serial||||
DocID17696 Rev 3
9/11
**Revision** history
**BAT54-Y**
## **4 Revision history**
**Table 9: Document revision history**
|**Date**|**Revision**|**Changes**|
|---|---|---|
|04-Nov-2011|1|Initial release.|
|06-Jul-2017|2|Added BAT54SWFILMY.
Minor text changes to improve readability.|
|05-Oct-2017|3|Updated_Table 4: "Static electrical characteristics"_.|
10/11
DocID17696 Rev 3
**BAT54-Y**
## **IMPORTANT NOTICE – PLEASE READ CAREFULLY**
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2017 STMicroelectronics – All rights reserved
DocID17696 Rev 3
11/11
## Links
- [View this product on Novapart](https://novapart.co/products/BAT54SFILMY/small-signal-schottky-diode-dual-series-40-v-300)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/stmicroelectronics/bat54sfilmy/schottky-diode-aec-q101-0-3a-sot/dp/2629713)
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