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Alternatives to Diodes Incorporated HX21A0001Z

Diodes Incorporated HX21A0001Z and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for Diodes Incorporated HX21A0001Z

HX21A0001Z compared against its qualified second sources
HX21A0001ZDiodes IncorporatedSG-8101CG 100.0000M-TCHPA0EPSONKC2520Z100.000C1KX00KYOCERA AVX
FFF CompatibilityThe part shares the identical 2.5mm x 2.0mm 4-pin footprint and pinout assignment, with Pin 1 assigned to Output Enable (OE).Matches the standard 2520 SMD package style and dimensions. It has a slightly lower profile height of 0.8mm max compared to the original 0.9mm.Operates at 100.0 MHz, matches the temperature range, offers tighter stability of ±20 ppm, and covers the wide supply voltage range.The footprint is identical and physically compatible, but Pin 1 is configured for Standby (Power Down) instead of Output Enable (OE), which behaves differently on startup and sleep transitions.Matches the standard 2520 package outline and footprint dimension.Provides the exact 100 MHz frequency, meets temperature and supply voltage requirements, and offers tighter stability.
AI Summary

HX21A0001Z by Diodes Incorporated: 100 MHz XO (Standard) LVCMOS Oscillator 1.8V ~ 3.3V Enable/Disable 4-SMD, No Lead.

This is an excellent, actively-supported quartz-based crystal oscillator from Epson that acts as a true direct replacement for the obsolete Diodes Inc. component. It offers identical pinout configurations and a continuous wide operating voltage range.

  • True drop-in pin-to-pin compatible replacement
  • Continuous wide supply voltage range from 1.62V to 3.63V fully covers the original +1.8V to +3.3V range
  • Tighter frequency stability (±20 ppm vs ±25 ppm)

This is a high-quality quartz-based crystal oscillator from Kyocera AVX that matches the core physical shape and wide voltage capability. While footprint-compatible, the function of Pin 1 is Standby instead of Output Enable.

  • Continuous supply voltage range of 1.71V to 3.63V covers the original 1.8V to 3.3V specifications
  • Tighter frequency stability of ±20 ppm vs ±25 ppm
  • Maintains the same -40°C to +105°C operating temperature range
  • Pin 1 uses Standby function which stops the internal oscillation instead of just disabling the output driver, resulting in a longer startup delay from a disabled state
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedNon-stockIn stock
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