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SG-210STF 40.0000ML3
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Seiko Epson Crystal Oscillators, SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SG-210STF 40.0000ML3
Seiko Epson · Crystal Oscillators · SMD2520-4P
SG-210STF 40.0000ML3 from Seiko Epson, in a SMD2520-4P. 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 | ST | input | Standby terminal: HIGH or open enables oscillation and the specified frequency output, LOW stops oscillation and puts the output in high impedance; VIH min is 80% VCC and VIL max is 20% VCC. |
| 2 | GND | power_in | Ground connection; the bypass capacitor (0.01 µF to 0.1 µF) should be placed as close as possible between VCC and GND. |
| 3 | OUT | output | CMOS clock output with a maximum load of 15 pF; VOH min is 90% VCC and VOL max is 10% VCC, and it goes to high impedance when ST is LOW. |
| 4 | VCC | power_in | Power supply input; the SG-210STF is rated 1.8 V to 3.3 V typical, with the allowed range depending on output frequency and upper operating temperature per Figure 1. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Seiko Epson |
| Package | SMD2520-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | 1.6 | 3.63 | V | 4 MHz ≤ fo ≤ 50 MHz, T_use = +105 °C Max. | 1 | |
| Operating temperature | T_use | -40 | 105 | °C | -40 °C to +105 °C (see Figure 1) | 1 | |
| Storage temperature | T_stg | -40 | 125 | °C | All others | 1 | |
| Frequency tolerance | f_tol | -25 | 25 | ×10-6 | -20 °C to +70 °C | 1 | |
| Frequency tolerance | f_tol | -50 | 50 | ×10-6 | -40 °C to +85 °C, -40 °C to +105 °C | 1 | |
| Current consumption | ICC | 1.8 | mA | VCC = 1.8 V ± 10 %; no load, 20 MHz < fo ≤ 40 MHz | 1 | ||
| Current consumption | ICC | 2 | mA | VCC = 2.5 V ± 10 %; no load, 20 MHz < fo ≤ 40 MHz | 1 | ||
| Current consumption | ICC | 2.2 | mA | VCC = 3.3 V ± 10 %; no load, 20 MHz < fo ≤ 40 MHz | 1 | ||
| Stand-by current | I_std | 2.1 | µA | VCC = 1.8 V ± 10 %; ST = GND | 1 | ||
| Stand-by current | I_std | 2.5 | µA | VCC = 2.5 V ± 10 %; ST = GND | 1 | ||
| Stand-by current | I_std | 2.7 | µA | VCC = 3.3 V ± 10 %; ST = GND | 1 | ||
| Symmetry | SYM | 45 | 55 | % | 50 % VCC level, L_CMOS ≤ 15 pF | 1 | |
| Output voltage high | VOH | 90 | % VCC | VCC = 1.8 V ± 10 %; IOH = -1.5 mA | 1 | ||
| Output voltage low | VOL | 10 | % VCC | VCC = 1.8 V ± 10 %; IOL = 1.5 mA | 1 | ||
| Output voltage low (2) | VOL-2 | 0.4 | V | VCC = 1.8 V ± 10 %; IOL = 3 mA | 1 | ||
| Output load (CMOS) | L_CMOS | 15 | pF | 1 | |||
| Input voltage high (ST terminal) | VIH | 80 | % VCC | ST terminal | 1 | ||
| Input voltage low (ST terminal) | VIL | 20 | % VCC | ST terminal | 1 | ||
| Rise time and fall time | tr / tf | 3 | ns | 20 % VCC to 80 % VCC level, L_CMOS = 15 pF | 1 | ||
| Rise time and fall time (1.8 V) | tr / tf | 3.5 | ns | @1.8 V ± 10 %; 20 % VCC to 80 % VCC level, L_CMOS = 15 pF | 1 | ||
| Start-up time | t_str | 3 | ms | T = 0 at 90 % VCC | 1 | ||
| Frequency aging | f_age | -3 | 3 | ×10-6 / year | +25 °C, First year | 1 |
CAD (KiCad official)
- Symbol:
SG-210STF 40.0000ML3 - Footprint:
Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm - 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files:
sg-210stf-40-0000ml3-etched.step/sg-210stf-40-0000ml3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sg-210stf-40-0000ml3.step/sg-210stf-40-0000ml3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Seiko Epson datasheet (3 pp, sha256
f8748780dfc943fb, retrieved 2026-10-16, 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).
# SG-210STF 40.0000ML3
**Seiko Epson** · Crystal Oscillators · SMD2520-4P
SG-210STF 40.0000ML3 from Seiko Epson, in a SMD2520-4P. 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 | ST | input | Standby terminal: HIGH or open enables oscillation and the specified frequency output, LOW stops oscillation and puts the output in high impedance; VIH min is 80% VCC and VIL max is 20% VCC. |
| 2 | GND | power_in | Ground connection; the bypass capacitor (0.01 µF to 0.1 µF) should be placed as close as possible between VCC and GND. |
| 3 | OUT | output | CMOS clock output with a maximum load of 15 pF; VOH min is 90% VCC and VOL max is 10% VCC, and it goes to high impedance when ST is LOW. |
| 4 | VCC | power_in | Power supply input; the SG-210STF is rated 1.8 V to 3.3 V typical, with the allowed range depending on output frequency and upper operating temperature per Figure 1. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Seiko Epson |
| Package | SMD2520-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | 1.6 | | 3.63 | V | 4 MHz ≤ fo ≤ 50 MHz, T_use = +105 °C Max. | 1 |
| Operating temperature | T_use | -40 | | 105 | °C | -40 °C to +105 °C (see Figure 1) | 1 |
| Storage temperature | T_stg | -40 | | 125 | °C | All others | 1 |
| Frequency tolerance | f_tol | -25 | | 25 | ×10-6 | -20 °C to +70 °C | 1 |
| Frequency tolerance | f_tol | -50 | | 50 | ×10-6 | -40 °C to +85 °C, -40 °C to +105 °C | 1 |
| Current consumption | ICC | | | 1.8 | mA | VCC = 1.8 V ± 10 %; no load, 20 MHz < fo ≤ 40 MHz | 1 |
| Current consumption | ICC | | | 2 | mA | VCC = 2.5 V ± 10 %; no load, 20 MHz < fo ≤ 40 MHz | 1 |
| Current consumption | ICC | | | 2.2 | mA | VCC = 3.3 V ± 10 %; no load, 20 MHz < fo ≤ 40 MHz | 1 |
| Stand-by current | I_std | | | 2.1 | µA | VCC = 1.8 V ± 10 %; ST = GND | 1 |
| Stand-by current | I_std | | | 2.5 | µA | VCC = 2.5 V ± 10 %; ST = GND | 1 |
| Stand-by current | I_std | | | 2.7 | µA | VCC = 3.3 V ± 10 %; ST = GND | 1 |
| Symmetry | SYM | 45 | | 55 | % | 50 % VCC level, L_CMOS ≤ 15 pF | 1 |
| Output voltage high | VOH | 90 | | | % VCC | VCC = 1.8 V ± 10 %; IOH = -1.5 mA | 1 |
| Output voltage low | VOL | | | 10 | % VCC | VCC = 1.8 V ± 10 %; IOL = 1.5 mA | 1 |
| Output voltage low (2) | VOL-2 | | | 0.4 | V | VCC = 1.8 V ± 10 %; IOL = 3 mA | 1 |
| Output load (CMOS) | L_CMOS | | | 15 | pF | | 1 |
| Input voltage high (ST terminal) | VIH | 80 | | | % VCC | ST terminal | 1 |
| Input voltage low (ST terminal) | VIL | | | 20 | % VCC | ST terminal | 1 |
| Rise time and fall time | tr / tf | | | 3 | ns | 20 % VCC to 80 % VCC level, L_CMOS = 15 pF | 1 |
| Rise time and fall time (1.8 V) | tr / tf | | | 3.5 | ns | @1.8 V ± 10 %; 20 % VCC to 80 % VCC level, L_CMOS = 15 pF | 1 |
| Start-up time | t_str | | | 3 | ms | T = 0 at 90 % VCC | 1 |
| Frequency aging | f_age | -3 | | 3 | ×10-6 / year | +25 °C, First year | 1 |
## CAD (KiCad official)
- Symbol: `SG-210STF 40.0000ML3`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `sg-210stf-40-0000ml3-etched.step` / `sg-210stf-40-0000ml3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sg-210stf-40-0000ml3.step` / `sg-210stf-40-0000ml3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Seiko Epson datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603280856727638016) (3 pp, sha256 `f8748780dfc943fb`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/sg-210stf-40-0000ml3-datasheet.pdf)