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HSO321S 50MHZ 3.3V 50PPM -40~+85℃

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HELE(Harmony Elec) Oscillators, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HSO321S 50MHZ 3.3V 50PPM -40~+85℃

HELE(Harmony Elec) · Oscillators · SMD3225-4P

HSO321S 50MHZ 3.3V 50PPM -40~+85℃ from HELE(Harmony Elec), in a SMD3225-4P. 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 OE input Output enable input: open or H gives oscillation output, L puts the output in high impedance (Vih min 0.7xVdd, Vil max 0.3xVdd).
2 GND power_in Ground; a 0.01uF bypass capacitor between Vdd and GND is recommended.
3 Output output C-MOS clock output (50.000 MHz), rated for CL=15pF with Voh min 0.9xVdd and Vol max 0.1xVdd.
4 Vdd power_in Supply voltage 3.0 to 3.6 V (3.3 V typ), absolute maximum -0.5 to 4.0 V.

Key specifications

Parameter Value
Manufacturer HELE(Harmony Elec)
Package SMD3225-4P
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 stability Δf/F -50 50 ppm 3.3+/-0.3V, -40~85℃ 3
Operating temp. range Topr -40 25 85 ℃ 3
Supply voltage Vdd 3 3.3 3.6 V 3
Current consumption 1 (#1 pin: open or H) Idd1 10 mA Fig1,2 3.3V 25+/-3℃ 3
Current consumption 2 (#1 pin: L level) Idd2 0.01 mA 3
Symmetry (duty) Duty 40 50 60 % 3
Low level output voltage Vol 0.1 x Vdd 3
High level output voltage Voh 0.9 x Vdd 3
Rise & fall time Tr & Tf 7 ns 3
Low level input current Iil 10 uA Fig3 3.3V 25+/-3℃ 3
High level input current Iih 10 uA Fig3 3.3V 25+/-3℃ 3
Low level input voltage Vil 0.3 x Vdd 3
High level input voltage Vih 0.7 x Vdd 3
Output disable time Tplz 150 nsec 3
Output enable time Tpzl 10 msec 3
Start-up time 10 ms 3
Aging -3 3 ppm/year 3
Vdd terminal voltage (absolute maximum) Vdd -0.5 4 V 3
Input terminal voltage (absolute maximum) Vcont -0.5 V 3
Output terminal voltage (absolute maximum) Vout -0.5 V 3
Output terminal current (absolute maximum) Iout 15 mA 3
Storage temp. range (absolute maximum) Tstr -55 125 deg.C 3
Output frequency (nominal) 50 MHz 3

CAD (KiCad official)

  • Symbol: HSO321S 50MHZ 3.3V 50PPM -40~+85℃
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: hso321s-50mhz-3-3v-50ppm-40-85-etched.step / hso321s-50mhz-3-3v-50ppm-40-85-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hso321s-50mhz-3-3v-50ppm-40-85.step / hso321s-50mhz-3-3v-50ppm-40-85.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HELE(Harmony Elec) datasheet (15 pp, sha256 0442e1f4a24a880d, retrieved 2026-10-21, 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