Research Guide Blocked

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I’ll research the manufacturer’s datasheet and verified alternatives, then create the application and usage guide in the project files with citations and practical integration guidance.

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Part Review: BSC040N10NS5ATMA1

Existing part metadata

Project/part name: BSC040N10NS5ATMA1
Manufacturer part number: BSC040N10NS5ATMA1
Manufacturer: Infineon
Description: MOSFET N-Ch 100V 100A TDSON-8 OptiMOS™ 5 Power-Transistor, 100V
Part Type: Transistors
Designator Prefix: Q
Pads/terminals in project: 9
Stored Datasheet URL: http://www.infineon.com/dgdl/Infineon-BSC040N10NS5-DS-v02_02-EN.pdf?fileId=5546d4624a0bf290014a0fbcee2e6b38

Official datasheet found

Official current Infineon datasheet found: https://www.infineon.com/dgdl/Infineon-BSC040N10NS5-DataSheet-v02_04-EN.pdf?fileId=5546d4624a0bf290014a0fbcee2e6b38
Alternate official asset URL: https://www.infineon.com/assets/row/public/documents/24/49/infineon-bsc040n10ns5-datasheet-en.pdf
Note: the project already had a datasheet URL set, so I did not overwrite it under the user's conditional instruction. The stored URL is official but uses HTTP and appears to be an older v02_02 PDF; recommend updating to the HTTPS v02_04 URL above.

Datasheet key specs

Device: Infineon OptiMOS™ 5 N-channel Power MOSFET
Package: PG-TDSON-8 / SuperSO8 5x6
Drain-source voltage, VDS: 100 V
Continuous drain current, ID: 136 A at TC = 25 °C; 86 A at TC = 100 °C; 18 A at TA = 25 °C with RthJA = 50 K/W
Pulsed drain current: 544 A
RDS(on): 3.4 mΩ typical / 4.0 mΩ max at VGS = 10 V, ID = 50 A; 4.0 mΩ typical / 5.6 mΩ max at VGS = 6 V, ID = 25 A
Gate threshold voltage: 2.2 V min, 3.0 V typ, 3.8 V max
Gate-source voltage: ±20 V max
Total gate charge: 58 nC typical, 72 nC max
Operating/storage temperature: −55 °C to +150 °C
RthJC bottom: 0.5 K/W typ, 0.9 K/W max

Datasheet pin assignment

Table

Physical pin	Function
1	Source
2	Source
3	Source
4	Gate
5	Drain
6	Drain
7	Drain
8	Drain
Exposed pad / paddle	Drain / thermal drain pad

Schematic symbol check

Project terminals:

Table

Symbol terminal	Pin Number	Expected function	Result
S_1	1	Source	OK
S_2	2	Source	OK
S_3	3	Source	OK
G	4	Gate	OK
D_1	5	Drain	OK
D_2	6	Drain	OK
D_3	7	Drain	OK
D_4	8	Drain	OK
D_5	9	Exposed drain pad	OK if pin 9 is intentionally used for the exposed pad

Footprint check

The footprint contains 9 pads: pins 1–4 on one side, pins 5–8 on the opposite side, plus a large center exposed pad assigned as drain. This matches the PG-TDSON-8 / SuperSO8 footprint concept. The pitch inferred from pad centers is 1.27 mm, matching the datasheet.

Pad functions match the datasheet mapping: S_1/S_2/S_3 are source pads, G is pin 4 gate, D_1–D_4 are pins 5–8 drain, and D_5 is the exposed drain paddle.

Mismatches / issues flagged

Datasheet URL quality: stored URL is official but uses http:// and older filename/version v02_02. The latest official Infineon result found is HTTPS v02_04.
Pin type properties are all Unspecified. For better ERC/library quality, set Source/Drain pins as Passive or Power, and Gate as Input/High-Z depending on the library convention.
The project uses Pin Number: 9 for the exposed drain pad. This is acceptable in CAD libraries when representing the exposed pad, but the datasheet describes an 8-pin package plus exposed paddle, not a separately numbered lead.

Overall result

No functional symbol or footprint pin-mapping mismatches were found. Recommended cleanup: update the Datasheet URL to the HTTPS v02_04 official URL and improve terminal pin type/descriptions.

Existing part metadata
Official datasheet found
Datasheet key specs
Datasheet pin assignment
Schematic symbol check
Footprint check
Mismatches / issues flagged
Overall result