component
CJ432-HAF
Public Made by Adomby adom
Changjing Voltage References, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCJ432-HAF
Changjing · Voltage References · SOT-23
CJ432-HAF from Changjing, in a SOT-23. 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 | REFERENCE | input | Reference input of the shunt regulator, which sets the output at about 1.24 V (Vref 1.2214 V to 1.2586 V) with a reference input current rated at 6 µA maximum. |
| 2 | CATHODE | passive | Cathode of the shunt reference, rated for a maximum cathode voltage of 18 V and a continuous cathode current of 100 mA, with a minimum of 0.1 mA needed for regulation. |
| 3 | ANODE | passive | Common anode terminal of the shunt reference; the datasheet gives no separate anode rating beyond the cathode voltage and current limits. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference input voltage | Vref | 1.2214 | 1.2586 | V | VKA=VREF, IKA=10mA | 2 | |
| Deviation of reference voltage over full temperature range | ΔVref(DEV) | 16 | mV | VKA =VREF, IKA =10mA 0℃≤Ta≤70℃ | 2 | ||
| Ratio of change in reference input voltage to the change in cathode voltage | ΔVref/ΔVKA | 2.4 | mV/V | IKA=10mA, ΔVKA=1.25V~15V | 2 | ||
| Deviation of reference input current over full temperature range | Δlref/ΔT | 0.6 | μA | lKA=10mA, R1=10kΩ, R2=∞, 0℃≤Ta≤70℃ | 2 | ||
| Minimum cathode current for regulation | IKA(min) | 0.1 | mA | VKA=VREF | 2 | ||
| Off-state cathode current | Ioff | 0.5 | μA | VKA=15V,VREF=0 | 2 | ||
| Dynamic impedance | ZKA | 0.5 | Ω | VKA=VREF, lKA=0.1 ~20mA, f≤1.0kHz | 2 | ||
| Cathode Voltage | VKA | 18 | V | 1 | |||
| Cathode Current Range (continuous) | IKA | 100 | mA | 1 | |||
| Reference Input Current Range | Iref | 6 | μA | 1 | |||
| Power Dissipation | PD | 350 | mW | 1 | |||
| Thermal Resistance from Junction to Ambient | RθJA | 357 | ℃/W | 1 | |||
| Operating Junction Temperature Range | TJ | -40 | 125 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
CJ432-HAF - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
cj432-haf-etched.step/cj432-haf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj432-haf.step/cj432-haf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (7 pp, sha256
6ff031d80f2f1bfd, retrieved 2026-11-12, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).