HA1457 Upgrade Adapter – 140901

The HA1457 op amp is a single-channel op amp in an 8-pin SIL (single inline) package that was produced by Hitachi for use in hi-fi audio. The BrownDog 140901 adapter replaces HA1457 (and HA12017) op amps with modern single-channel op amps in either the SOIC-8 or DIP8 package. Available with an 8-pin DIP socket or an OPA604 single-channel audio op amp installed.


SKU: bdg-adp-140901 Categories: , ,


  • Maps the pins from one conventional single-channel op amp to the pinout for a HA1457 or HA12017 op amp.
  • Land patterns for SOIC-8 (0.050 in. = 1.27mm pin pitch) and 8-pin DIP (0.1 in. = 2.54mm pin pitch) single-channel op amps on the top surface.
  • Pad for optional 1206 bypass capacitor between power voltage rails.
  • Adapter footprint is 8-pin SIL with pins on a 0.1 in. pin pitch in a single row.
  • Board dimensions: 800 mil by 550 mil
  • Pins extend 0.25 in. from bottom edge; cut to fit.
  • Tg 130, FR-4 laminate
  • ENIG surface finish
  • RoHS-compliant
  • Low loss traces: 15 mil minimum trace width
  • Made in USA of domestic and foreign components.
  • Download schematic.
Weight 0.05 oz
Dimensions 0.8 × 0.8 × 0.3 in
Base Part Number


Input Device


Adapter Footprint



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