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docs cpc1972g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers cpc1972g: viewers · Ray 26d ago
cpc1972g-etched.fit.json cpc1972g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
cpc1972g-etched.glb cpc1972g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
cpc1972g-etched.step cpc1972g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
cpc1972g.glb Publish 0.1.0 · Ray 26d ago
cpc1972g.kicad_mod Publish 0.1.0 · Ray 26d ago
cpc1972g.kicad_sym Publish 0.1.0 · Ray 26d ago
cpc1972g.lbr Publish 0.1.0 · Ray 26d ago
cpc1972g.step Publish 0.1.0 · Ray 26d ago
package.json Publish 0.1.0 · Ray 26d ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md cpc1972g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

CPC1972G

Littelfuse IXYS · Solid State Relays (Triac Output) · DIP-6

CPC1972G from Littelfuse IXYS, in a DIP-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 LED+ input LED anode (positive) input. Forward-biased with typical IF = 5 mA (VF ~1.2 V) to activate the AC output. Absolute maximum input current 50 mA continuous.
2 LED- input LED cathode (negative) input. Reference return for the control-side LED; maximum reverse input voltage 5 V.
3 NC unconnected No internal connection. Leave unconnected or tie to non-critical net.
4 AC_LOAD passive AC load output terminal (SCR output). Bidirectional AC switch terminal, rated 550 Vrms operating / 800 Vp blocking, 250 mArms continuous load current, 3 Vrms on-state drop. Pair with pin 6 to switch the AC load.
5 NC unconnected No internal connection. Leave unconnected or tie to non-critical net.
6 AC_LOAD passive AC load output terminal (SCR output). Bidirectional AC switch terminal paired with pin 4; zero-cross switching keeps first-half-cycle turn-on <=20 V to minimize transients.

Key specifications

Parameter Value
Manufacturer Littelfuse IXYS
Package DIP-6
Category Optoisolators
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • CPC1972GG
  • CPC1972GGS
  • CPC1972GGSTR

CAD (KiCad official)

  • Symbol: CPC1972G
  • Footprint: Package_DIP:DIP-6_W7.62mm
  • 3D model: DIP-6 (KiCad packages3D, STEP)
  • 3D model files: cpc1972g-etched.step / cpc1972g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cpc1972g.step / cpc1972g.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse IXYS datasheet (7 pp, sha256 eabcfb8ce937e546, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF