SOT-23-6 · 6P
Synchronized Pinout (Symbol / 2D / 3D) (6/6)
Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| 1 | NC | I/O | Multiplexed I/O & Peripheral Pin NC (General) |
| 2 | GND | GND | Ground Reference Pin (GND) |
| 3 | SW | I/O | Multiplexed I/O & Peripheral Pin SW (General) |
| 4 | VIN5 | Power | Power Supply Input (VIN5 — 3.3V / 5.0V Standard Logic) |
| 5 | LDO_3V3 | Power | Power Supply Input (LDO_3V3 — 3.3V / 5.0V Standard Logic) |
| 6 | FB | I/O | Multiplexed I/O & Peripheral Pin FB (General) |
PIN 1 NC
I/OMultiplexed I/O & Peripheral Pin NC (General)
Design note: Signal terminal NC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
IPC-7351B Solder Density & Span C/G/Z Tuner
Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 8 Extracted Figures)
Read the original datasheet PDF directly or click any drawing to view fullscreen1. Realistic 3D PackageREPRESENTATIVE
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
True package pinout (6 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
SOT-23-6 · 2.90×1.60mm · Pitch 0.95mmExpand ›
5. Recommended Land PatternLAND PATTERN
IPC-7351B Footprint (6 Pads)Expand ›
6. Application SchematicSCHEMATIC
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (8 figures · Page 1/1)
Showing 1–8 of 8 uncropped original figures for CH2003
P2 · p02_fig01EXACT PACKAGE
P2 · p02_fig02EXACT PACKAGE
P3 · p03_fig011338×573px
P3 · p03_fig01P3
P4 · p04_fig011268×579px
P4 · p04_fig021268×579px
P5 · p05_fig011771×635px
P5 · p05_fig021759×1557px
Technical Specifications & Part Details (CH2003K)
Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)Detailed Overview:CH2003K (SOT-23-6) is a 6-pin standard electronic & interconnect component featuring a 2.90 × 1.60 × 1.10 mm mechanical envelope (lead pitch e = 0.95 mm). Rated for 1.8V ~ 5.5V (Theo Datasheet) supply operation across -40°C ~ +85°C (Industrial Grade) with integrated Standard I/O / Passive interfaces.
Operating Supply VoltageV_CC / V_DD
1.8V ~ 5.5V (Theo Datasheet)
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-40°C ~ +85°C (Industrial Grade)
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
5MHz
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
I_GPIO(max) = ±20 mA / pin | I_VDD(total) ≤ 150 mA
Observe per-pin absolute maximum current limits
Package Envelope (D × E × A)D × E × A
2.90 × 1.60 × 1.10 mm (A1=0.08 mm)
Package family: SOT23 (SOT-23-6)
Pin Count & Lead PitchN / e
6 Pins | Pitch e = 0.95 mm (37.4 mil)
Normalized to Center-to-Center Span C per IPC-7351B
Integrated Peripheral InterfacesBuses
Standard I/O / Passive
Cross-linked with 4D Pinout & Schematic Symbol
Reflow & Moisture SensitivityIPC / MSL
IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3
60% windowed solder paste stencil on thermal EPAD
Engineering Safety Alert: Verify Pin-1 chamfer orientation on Top Silkscreen prior to SMT pick-and-place assembly.
Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.
5-Point Standards Verification
Automated compliance checks prior to exportIEEE-315 Symbol6 auto-grouped pins
IPC-7351B Land Pattern6 pads · Pitch 0.95mm
IPC-7525 60% Solder PasteReflow 1:1 Standard
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
Hardware Verification & Community Engineering Reviews
Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet5.00 PCB Verified
IPC-7351B
Select package variant or sibling MPN sharing this datasheetFamily Variants & Same Datasheet Chips — CH2003 (2)
Mechanical Dimensions & Land Pattern (SOT-23-6)
Extracted from Datasheet & IPC-7351B NormalizedPackage Body (D × E)Nominal
2.90 × 1.60 mm
Height (A) & Pitch (e)IPC-7351B
A=1.10mm · e=0.95mm
Pad Size (W × L)Level B
0.60 × 1.00 mm
Pins / Total PadsTopology
6P / 6Pad (SOT_SMALL)
Recommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit SOT-23-6 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — CH2003K (SOT-23-6)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of CH2003K (SOT-23-6)?
Manufactured by WCH, the CH2003K is housed in a SOT-23-6 package with 6 pins and a 0.95 mm lead pitch. Key pins include: 1 (NC: Multiplexed I/O & Peripheral Pin NC (General)), 2 (GND: Ground Reference Pin (GND)), 3 (SW: Multiplexed I/O & Peripheral Pin SW (General)), 4 (VIN5: Power Supply Input (VIN5 — 3.3V / 5.0V Standard Logic)), 5 (LDO_3V3: Power Supply Input (LDO_3V3 — 3.3V / 5.0V Standard Logic)), 6 (FB: Multiplexed I/O & Peripheral Pin FB (General)).
What are the IPC-7351B PCB Footprint dimensions for CH2003K?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), CH2003K (SOT-23-6) has a nominal body envelope of 1.60 × 2.90 mm, pitch e = 0.95 mm, and 6 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for CH2003K?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for CH2003K (WCH, SOT-23-6) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (6 pins) & CH2003 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | NC | NC | Signal terminal NC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 2 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 3 | SW | Digital_IO | Signal terminal SW (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 4 | VIN5 | Power_In | Primary positive power supply input (VIN5) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 5 | LDO_3V3 | Power_In | Primary positive power supply input (LDO_3V3) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 6 | FB | Digital_IO | Signal terminal FB (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: FB. Supported peripheral buses: General. |