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Contents

README

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X2R026000B91HZ-DEHPZ

HELE Harmony Elec · Crystals · SMD2520-4P

X2R026000B91HZ-DEHPZ from HELE Harmony Elec, 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 Crystal passive Crystal terminal of the 26.000000 MHz fundamental quartz resonator; the datasheet gives no separate electrical limit for this pad.
2 GND power_in Ground pad, connected to the metal lid (GND/Lid, connection cover) as shown in the pin connection drawing.
3 Crystal passive Second crystal terminal of the resonator; the datasheet gives no separate electrical limit for this pad.
4 Thermistor passive Terminal of the integrated thermistor (100 kΩ at 25°C, B-constant 4250 K, 1% tolerance) used for temperature sensing.

Key specifications

Parameter Value
Manufacturer HELE Harmony Elec
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
Frequency tolerance -10 10 ppm at 25℃±3℃ 4
Equivalent resistance RR 30 Ω SERIES 4
Storage temperature range -40 85 ℃ 4
Operable temperature range -30 85 ℃ 4
Temperature stability -10 10 ppm -25℃ ~ +85℃ 4
Drive level DL 10 100 μW 4
Insulation resistance 500 MΩ at DC 100V 4
Aging -0.7 0.7 ppm/Year 4
Aging -1.4 1.4 ppm/2Years 4
Aging -2.5 2.5 ppm/5Years 4
Aging -5 5 ppm/10Years 4
DLD2 2.5 Ω 10nW ~ 100uW, step ratio is √10 4
FDLD 2 ppm 10nW ~ 100uW, step ratio is √10 4
DLDH2 1.5 Ω 4
FDLDH 0.7 ppm 4
SPUR 500 Ω ±1 MHz 4
Thermistor resistance 100 kΩ TA=+25°C 4
Thermistor B-constant B 4250 K +25°C ~ +50°C 4
Thermistor tolerance 1 % 4
Frequency (FL) nominal FL 26 MHz 4
Loading capacitance CL 9 pF 4
Shunt capacitance C0 2 pF 4

CAD (KiCad official)

  • Symbol: X2R026000B91HZ-DEHPZ
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: x2r026000b91hz-dehpz-etched.step / x2r026000b91hz-dehpz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); x2r026000b91hz-dehpz.step / x2r026000b91hz-dehpz.glb are the bare package body.

Provenance

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

  • Datasheet: HELE Harmony Elec datasheet (11 pp, sha256 168124aae1b4016d, 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