component
ECS-250-9-37B2-CKM-TR
Public Made by Adomby adom
ECS Crystals, SMD2016-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownECS-250-9-37B2-CKM-TR
ECS · Crystals · SMD2016-4P
ECS-250-9-37B2-CKM-TR from ECS, in a SMD2016-4P. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | In/Out | passive | Crystal terminal (In/Out) that is interchangeable with pad 3 because the crystal is symmetrical. |
| 2 | Gnd | power_in | Ground pad for the crystal package. |
| 3 | Out/In | passive | Crystal terminal (Out/In) that is interchangeable with pad 1 because the crystal is symmetrical. |
| 4 | Gnd | power_in | Ground pad for the crystal package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ECS |
| Package | SMD2016-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Frequency range | f | 16 | 50 | MHz | ECX-1637B2 family range; MPN frequency 25.000 MHz (P/N code 250) is within it | 1 | |
| Frequency tolerance | -10 | 10 | ppm | @ +25°C, C option (P/N tolerance code C = ±10 ppm) | 1 | ||
| Aging (first year) | -2 | 2 | ppm | First year @ +25°C ±3°C | 1 | ||
| Equivalent series resistance (ESR) | ESR | 50 | Ω | Frequency 24.000 ~ 39.999 MHz (applies to 25 MHz) | 1 | ||
| Shunt capacitance | Co | 3 | pF | 1 | |||
| Drive level | DL | 100 | μW | 1 | |||
| Storage temperature | Tstg | -55 | 125 | °C | 1 | ||
| Peak solder temperature | 260 | °C | Max 10 sec, 2 cycles max (reflow) | 2 | |||
| Nominal frequency | f0 | 25 | MHz | Nominal per P/N code 250 (= 25.000 MHz, part-numbering guide) | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | gold | MSL 1, Lead Finish Au POCKET TAPE DIMENSIONS (mm) | 2 |
CAD (KiCad official)
- Symbol:
ECS-250-9-37B2-CKM-TR - Footprint:
Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm - 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files:
ecs-250-9-37b2-ckm-tr-etched.step/ecs-250-9-37b2-ckm-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ecs-250-9-37b2-ckm-tr.step/ecs-250-9-37b2-ckm-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ECS datasheet (2 pp, sha256
295c7caddb585618, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).