component
8121H-50.000NK33DRL
Public Made by Adomby adom
HCI Temperature Compensated Crystal Oscillators (TCXO), SMD2016-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown8121H-50.000NK33DRL
HCI · Temperature Compensated Crystal Oscillators (TCXO) · SMD2016-4P
8121H-50.000NK33DRL from HCI, 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 | E/D or N.C. | input | Enable/disable input or no connection, as given in the pad function table. |
| 2 | GND | power_in | Ground; the metal lid is connected to this pin. |
| 3 | RF Output | output | LVCMOS output driving a 15pF load, with 45~55% symmetry and 8ns maximum rise and fall time. |
| 4 | Vcc | power_in | Supply voltage pin for 1.8V, 2.5V or 3.3V versions, drawing 5mA, 7mA or 10mA respectively at 15pF load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HCI |
| 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 | 10 | 52 | MHz | 1 | |||
| Frequency tolerance (initial) | -1 | 1 | ppm | Initial tol. @+25°C | 1 | ||
| Aging per year | -1 | 1 | ppm | @+25°C | 1 | ||
| Frequency stability option ±2.0ppm | -2 | 2 | ppm | Paired with operating temperature range -30 to +85°C | 1 | ||
| Frequency stability option ±2.5ppm | -2.5 | 2.5 | ppm | Paired with operating temperature range -40 to +85°C | 1 | ||
| Frequency stability option ±5.0ppm | -5 | 5 | ppm | Paired with operating temperature range -40 to +105°C | 1 | ||
| Operating temperature range option -30 to +85°C | -30 | 85 | °C | In combination with ±2.0ppm stability | 1 | ||
| Operating temperature range option -40 to +85°C | -40 | 85 | °C | In combination with ±2.5ppm stability | 1 | ||
| Operating temperature range option -40 to +105°C | -40 | 105 | °C | In combination with ±5.0ppm stability | 1 | ||
| Output voltage level HIGH | 90 | %Vcc | 1 | ||||
| Output voltage level LOW | 10 | %Vcc | 1 | ||||
| Symmetry (duty cycle) | 45 | 55 | % | @ 50%VCC | 1 | ||
| Phase jitter RMS | 1 | ps | 12kHz≤Fj≤20MHz | 1 | |||
| Nominal frequency (from part number) | 50 | MHz | 1 |
CAD (KiCad official)
- Symbol:
8121H-50.000NK33DRL - Footprint:
Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm - 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files:
8121h-50-000nk33drl-etched.step/8121h-50-000nk33drl-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);8121h-50-000nk33drl.step/8121h-50-000nk33drl.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HCI datasheet (1 pp, sha256
321e631900b87064, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).