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CJ78L12C-TAB-ABG

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Changjing Linear Voltage Regulators (LDO), TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CJ78L12C-TAB-ABG

Changjing · Linear Voltage Regulators (LDO) · TO-92

CJ78L12C-TAB-ABG from Changjing, in a TO-92. 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 OUT output Output of the regulator, rated for output current up to 100mA with fixed 12V output for CJ78L12C.
2 GND power_in Regulator ground.
3 IN input Input to the device; the CJ78L12C recommended input voltage range is listed up to 35V, and absolute maximum input voltage is 36V.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-92
Category Power Management
Pins 3

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 voltage range VIN 35 V CJ78L12C 6
Operating junction temperature TJ -40 125 °C 6
Maximum input voltage VIN MAX 36 V 6
Maximum junction temperature TJ Max 150 °C 6
Storage temperature Tstg -65 150 °C 6
Soldering temperature Tsolder 260 °C 10s 6
Input voltage VIN 35 V 12
Output voltage ±3% grade at TJ = 25°C VOUT 11.64 12 12.36 V TJ = 25°C, ±3% grade 12
Output voltage ±3% grade over line, load and temperature VOUT 11.4 12 12.6 V VIN = 14.5 to 27V, TJ = -40 to 125°C, IOUT = 1 to 100mA, PD ≤ 0.75W 12
Output current IOUT 100 mA TJ = 25°C 12
Quiescent current IQ 3 6 mA IOUT = 0mA 12
Quiescent current change ΔIQ 1.5 mA VIN = 16 to 27V, TJ = -40 to 125°C 12
Quiescent current change ΔIQ 0.1 mA IOUT = 1 to 40mA, TJ = -40 to 125°C 12
Dropout voltage VDO 1.7 2 V IOUT = 40mA 12
Dropout voltage VDO 1.8 2.3 V IOUT = 100mA 12
Line regulation ΔVLINE 20 250 mV VIN = 14.5 to 27V 12
Load regulation ΔVLOAD 20 100 mV IOUT = 1 to 100mA 12
Ripple rejection RR 37 42 dB VIN = 15 to 25V, f = 120Hz 12
Output voltage temperature coefficient ΔVOUT / ΔT 1 mV/°C IOUT = 5mA 12
Output voltage temperature coefficient ΔVOUT / (VOUT × ΔT) 84 ppm/°C IOUT = 5mA 12
Output noise voltage VN 80 µV f = 10 to 100k Hz 12
Thermal resistance junction-to-ambient (TO-92) RΘJA 167.2 °C/W 7
Thermal resistance junction-to-case (TO-92) RΘJC 40.3 °C/W 7
Reference maximum power dissipation for continuous operation (TO-92) PD Ref 0.6 W 7

CAD (KiCad official)

  • Symbol: CJ78L12C-TAB-ABG
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: cj78l12c-tab-abg-etched.step / cj78l12c-tab-abg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj78l12c-tab-abg.step / cj78l12c-tab-abg.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (30 pp, sha256 ccb056fb5d1abe3f, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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