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AS321KTR-E1

Public Made by Adom

by adom

Diodes Incorporated Operational Amplifier, SOT-25. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentamplifiersas321ktr-e1factory-2.0.0extractor-text

Verified AS321KTR-E1

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RayPublished by the parts factory: tier mfr, 5 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: AS321KTR-E1 · SOT-25 · 5 pins
  • ✓copper: 5 copper pads, none touching another net
  • ✓datasheet: all 5 pin names found in the 10-page datasheet
  • ✓distributor: lcsc C429859, digikey AS321KTR-E1DITR-ND, mouser 621-AS321KTR-E1
  • ✓family: SOT-23-5
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-ug7wtqbe/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.8)
  • ✓pads: 5 pins = 5 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 5 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 19 kB, viewers/symbol.html 8 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ as321ktr-e1.kicad_sym✓ as321ktr-e1.kicad_mod✓ as321ktr-e1.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers as321ktr-e1: viewers rendered from the public page · Ray
as321ktr-e1-etched.glb Publish 0.1.0 · Ray
as321ktr-e1-etched.step as321ktr-e1: factory component page (tier=mfr) · Ray
as321ktr-e1-hero.glb as321ktr-e1: hero GLB from the etched model (keeps the MPN mark) · Ray
as321ktr-e1-hero.overlay.json as321ktr-e1: hero GLB from the etched model (keeps the MPN mark) · Ray
as321ktr-e1.glb Publish 0.1.0 · Ray
as321ktr-e1.kicad_mod Publish 0.1.0 · Ray
as321ktr-e1.kicad_sym Publish 0.1.0 · Ray
as321ktr-e1.lbr Publish 0.1.0 · Ray
as321ktr-e1.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json Set visibility: public · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier mfr, 5 pins · Ray

AS321KTR-E1

Diodes Incorporated · Operational Amplifier · SOT-25

AS321KTR-E1 from Diodes Incorporated, in a SOT-25. 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 INPUT+ input Non-inverting input; common-mode range is 0V to VCC-1.5V and it may go to +36V without damage.
2 VEE power_in Negative supply, ground in single-supply operation (VEE = 0V); supply span VCC-VEE is 3V to 36V recommended, 40V absolute maximum.
3 INPUT- input Inverting input; common-mode range is 0V to VCC-1.5V and it may go to +36V without damage.
4 OUTPUT output Amplifier output, sources 40mA typical and sinks 15mA typical at VCC = 15V, short-circuit current 40mA typical.
5 VCC power_in Positive supply, 3V to 36V recommended, 40V absolute maximum.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-25
Category Amplifiers
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Offset Voltage (25°C) VIO 2 5 mV VO = 1.4V, RS = 0Ω, VCC = 5V to 30V (Note 6) 4
Input Offset Voltage (over temperature) VIO 7 mV VO = 1.4V, RS = 0Ω, VCC = 5V to 30V (Note 6) 4
Input Bias Current (25°C) IBIAS 20 100 nA IIN+ or IIN-, VCM = 0V 4
Input Bias Current (over temperature) IBIAS 200 nA IIN+ or IIN-, VCM = 0V 4
Input Offset Current (25°C) IIO 5 30 nA IIN+ - IIN-, VCM = 0V 4
Input Offset Current (over temperature) IIO 100 nA IIN+ - IIN-, VCM = 0V 4
Input Common Mode Voltage Range (lower limit) VCM 0 V VCC = 30V, CMRR ≥ 50dB 4
Supply Current (25°C) ICC 0.35 0.8 mA RL = ∞, VCC = 5V 4
Supply Current (over temperature) ICC 0.45 1 mA RL = ∞, VCC = 5V 4
Supply Current (25°C) ICC 0.45 1.2 mA RL = ∞, VCC = 30V 4
Supply Current (over temperature) ICC 0.65 1.5 mA RL = ∞, VCC = 30V 4
Large Signal Voltage Gain (25°C) GV 85 100 dB VCC = 15V, VO = 1V to 11V, RL ≥ 2kΩ 4
Large Signal Voltage Gain (over temperature) GV 80 dB VCC = 15V, VO = 1V to 11V, RL ≥ 2kΩ 4
Common Mode Rejection Ratio (25°C) CMRR 60 70 dB VCM = 0V to (VCC-1.5)V, RS ≤ 10kΩ 4
Common Mode Rejection Ratio (over temperature) CMRR 60 dB VCM = 0V to (VCC-1.5)V, RS ≤ 10kΩ 4
Power Supply Rejection Ratio (25°C) PSRR 70 100 dB VCC = 5V to 30V, RS ≤ 10kΩ 4
Power Supply Rejection Ratio (over temperature) PSRR 60 dB VCC = 5V to 30V, RS ≤ 10kΩ 4
Output Source Current (25°C) ISOURCE 20 40 mA VIN+ = 1V, VIN- = 0V, VCC = 15V, VO = 2V 4
Output Source Current (over temperature) ISOURCE 20 mA VIN+ = 1V, VIN- = 0V, VCC = 15V, VO = 2V 4
Output Sink Current (25°C) ISINK 10 15 mA VIN+ = 0V, VIN- = 1V, VCC = 15V, VO = 2V 4
Output Sink Current (over temperature) ISINK 5 mA VIN+ = 0V, VIN- = 1V, VCC = 15V, VO = 2V 4
Output Sink Current at low output voltage ISINK 12 50 µA VIN+ = 0V, VIN- = 1V, VCC = 15V, VO = 0.2V 4
Output Short Circuit Current to Ground ISC 40 60 mA VCC = 15V 4
Output Voltage Swing High (25°C) VOH 26 V VCC = 30V, RL = 2kΩ 4
Output Voltage Swing High (over temperature) VOH 26 V VCC = 30V, RL = 2kΩ 4
Output Voltage Swing High (25°C) VOH 27 28 V VCC = 30V, RL = 10kΩ 4
Output Voltage Swing High (over temperature) VOH 27 V VCC = 30V, RL = 10kΩ 4
Output Voltage Swing Low (25°C) VOL 5 20 mV VCC = 5V, RL = 10kΩ 4
Output Voltage Swing Low (over temperature) VOL 30 mV VCC = 5V, RL = 10kΩ 4
Power Supply Voltage (VS = VCC-VEE) VS 40 V 3
Differential Input Voltage VID 40 V 3
Input Voltage VIN -0.3 40 V 3
Operating Junction Temperature TJ 150 °C 3
Storage Temperature Range TSTG -65 150 °C 3
Lead Temperature (Soldering) TLEAD 260 °C Soldering, 10 Seconds 3
Thermal Resistance to Ambient θJA 260 °C/W 3
Supply Voltage VCC 3 36 V 3
Ambient Operating Temperature Range TA -40 85 °C 3
Thermal Resistance (Junction to Case) θJC 101 °C/W SOT25 4

CAD (KiCad official)

  • Symbol: AS321KTR-E1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.45 mm tall, datasheet A, max). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
  • 3D model files: as321ktr-e1-etched.step / as321ktr-e1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); as321ktr-e1.step / as321ktr-e1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (10 pp, sha256 a36bb8a9d282efac, retrieved 2026-11-12, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF