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ESD2CAN24DBZRQ1 Part Review

Date: 2026-07-20

Scope

Reviewed available part information for the published Flux part ESD2CAN24DBZRQ1: MPN, manufacturer, package, pin count, description, properties, schematic symbol terminals, PCB footprint, and pin metadata. The official Texas Instruments datasheet was added to the part metadata because the Datasheet URL was initially blank.

Part Metadata Found in Flux

Table

Field	Current Value	Datasheet / TI Source Check
Manufacturer Part Number	ESD2CAN24DBZRQ1	Matches TI orderable part number
Manufacturer Name	Texas Instruments	Matches datasheet
Datasheet URL	https://www.ti.com/lit/ds/symlink/esd2can24-q1.pdf	Official TI datasheet URL added
Description	`C / IPC-7351B / 1.12 mm / Texas Instruments`	Incomplete; does not describe the device function
Designator Prefix	D	Appropriate for TVS/ESD diode array
Terminal / pin count	3	Matches SOT-23 (DBZ), 3-pin
Package	SOT-23 (DBZ), 1.12 mm max height	Matches TI ordering info for ESD2CAN24DBZRQ1

Datasheet Identity

Official datasheet: Texas Instruments ESD2CAN24-Q1, ESD2CANFD24-Q1, ESD2CANXL24-Q1, document SLVSFW5D, revised March 2026.

TI ordering addendum lists ESD2CAN24DBZRQ1 as:

Status: Active / Production
Package: SOT-23 (DBZ), 3 pins
Carrier quantity: 3000, large tape-and-reel
RoHS: Yes
Lead finish: NiPdAu
MSL: Level-1, 260 C unlimited
Operating temperature: -55 C to 150 C
Part marking: 1L3

Pin Cross-Check

Datasheet pin table for DBZ / DCK package:

Table

Pin	Datasheet Name	Datasheet Type	Datasheet Description	Flux Current Metadata	Result
1	IO	I/O	ESD protected IO	Pin Type: Bi-Directional; no pin description	Function/type OK; description missing
2	IO	I/O	ESD protected IO	Pin Type: Bi-Directional; no pin description	Function/type OK; description missing
3	GND	G	Connect to ground	Pin Type: Power In; no pin description	Type mismatch; should be Ground, description missing

Symbol geometry has three terminal symbols and the schematic symbol pin numbers are present. The current symbol does not expose functional pin names/descriptions on the inspected terminal entries.

Footprint Cross-Check

Flux footprint asset: SOT95P237X112-3N.kicad_mod.

Current footprint pads from the KiCad footprint payload:

Table

Pad	Position (mm)	Size (mm)	Shape	Datasheet Expected
1	-1.055, -0.95	1.24 x 0.59	Rect	DBZ land pattern: 1.3 x 0.6 mm, pitch/spacing 0.95 mm / 2.1 mm
2	-1.055, 0.95	1.24 x 0.59	Rect	DBZ land pattern: 1.3 x 0.6 mm, pitch/spacing 0.95 mm / 2.1 mm
3	1.055, 0.00	1.24 x 0.59	Rect	DBZ land pattern: 1.3 x 0.6 mm, pitch/spacing 0.95 mm / 2.1 mm

Footprint outline from the KiCad payload:

Fab/body outline: approximately 1.30 mm x 2.92 mm, matching the datasheet body range of 1.2-1.4 mm by 2.8-3.04 mm.
Pin center spacing appears consistent with the datasheet example board layout: 0.95 mm spacing on the two-pin side and about 2.1 mm across the package.
Pad size is slightly smaller than the TI example land pattern: 1.24 x 0.59 mm vs 1.3 x 0.6 mm. TI notes that IPC-7351 may have alternate designs; the Flux description explicitly references IPC-7351B, so this is likely an IPC-derived nominal footprint rather than a critical mismatch.

Key Electrical Specs for ESD2CAN24-Q1 Variant

Table

Parameter	Value
Recommended input / working voltage	-24 V to +24 V
Reverse stand-off voltage, VRWM	+/-24 V
Breakdown voltage, VBRF	25.5 V to 35.5 V at +10 mA
Breakdown voltage, VBRR	-35.5 V to -25.5 V at -10 mA
Clamping voltage, 8/20 us surge	37 V typ at 5.7 A
Clamping voltage, TLP	35 V typ at 16 A
Surge current, IEC 61000-4-5 8/20 us	5.7 A max
Surge power, IEC 61000-4-5 8/20 us	210 W max
IEC 61000-4-2 contact discharge	+/-30 kV
IEC 61000-4-2 air-gap discharge	+/-30 kV
ISO 10605 contact / air discharge	up to +/-30 kV, depending test capacitance
Line capacitance	3 pF typ, 5 pF max at 1 MHz
Leakage current	-50 nA to +50 nA at VIO = +/-24 V
Dynamic resistance	0.35 ohm typ
Operating free-air temperature	-55 C to 150 C

Mismatches / Issues Flagged

Pin 3 type mismatch: datasheet says pin 3 is GND type G; Flux currently marks pin 3 as Power In. Recommended correction: set Pin Type to Ground and Pin Description to Connect to ground.
Pin descriptions missing: pins 1 and 2 should describe ESD protected IO; pin 3 should describe Connect to ground.
Part description is incomplete: current description only lists C / IPC-7351B / 1.12 mm / Texas Instruments. Recommended description: Automotive 2-channel CAN bus ESD protection diode, +/-24 V VRWM, SOT-23-3 (DBZ), AEC-Q101/Q100-oriented Q1 device family.
Part Type property is blank: recommended part type is Protection or Diode depending library taxonomy preference.
Footprint pad size differs slightly from TI example: current 1.24 x 0.59 mm pads are slightly smaller than TI's 1.3 x 0.6 mm example. Because TI explicitly allows IPC-7351 alternate designs and this part description cites IPC-7351B, this is flagged as a minor review note, not a blocking footprint error.

Overall Assessment

The selected MPN, manufacturer, pin count, package family, and footprint geometry are broadly consistent with the Texas Instruments datasheet for ESD2CAN24DBZRQ1. The main actionable metadata issue is the schematic terminal metadata: pin 3 should be Ground rather than Power In, and all three pins need datasheet-derived descriptions.

Scope
Part Metadata Found in Flux
Datasheet Identity
Pin Cross-Check
Footprint Cross-Check
Key Electrical Specs for ESD2CAN24-Q1 Variant
Mismatches / Issues Flagged
Overall Assessment

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