Skill/references/taxonomy.md

Component taxonomy — Class → Subclass (Type) → Type ID

Use the Type ID as the typeid in MPN_make_typeid. Match each part to the closest subclass. The output sheet name is the Class (template.xlsx sheet). Full source: assets/template/Type_ID.xlsx.

Resistor (12 types)

• FIX — Thick-film chip resistor — Std chip R, RC/CRCW/RK73
• TFR — Thin-film chip resistor — Precision, low tempco
• MFR — Metal-film resistor — Axial MELF/leaded
• CFR — Carbon-film resistor — Leaded general purpose
• MOR — Metal-oxide resistor — High-power leaded
• WWR — Wirewound resistor — High-power / low-ohm
• SHT — Current-sense / shunt — mΩ sense resistor
• ARR — Resistor array / network — Isolated/bussed array
• POT — Potentiometer / trimmer — Variable resistor
• FSR — Fusible / safety resistor — Fails open safely
• NTC — NTC thermistor — Inrush / temp sense
• PTC — PTC thermistor — Temp sense / self-heat

Capacitor (7 types)

• CER — Ceramic MLCC — X7R/X5R/C0G chip
• ELE — Aluminium electrolytic — Bulk / DC-link
• TAN — Tantalum — Compact bulk
• PLY — Aluminium-polymer — Low-ESR polymer
• FLM — Film (MKT/MKP) — DC-link / snubber
• SFY — Safety (Class-X / Y) — Mains X2/Y suppression
• SUP — Supercapacitor / EDLC — Backup energy

Inductor / Magnetics (7 types)

• PWR — Power inductor — SMD/shielded
• FBD — Ferrite bead — EMI suppression
• CMC — Common-mode choke — CM noise filter
• RFI — RFI suppression choke — Line filter
• XFM — Transformer — Isolation / flyback
• CTX — Current transformer — Current sensing
• CPL — Coupled inductor — SEPIC / multi-winding

Diode (10 types)

• REC — Rectifier (general) — 50/60Hz rectifier
• FRD — Fast-recovery — SMPS rectifier
• SCH — Schottky — Low-Vf rectifier
• SIC — SiC Schottky — HV fast, low-loss
• ZEN — Zener — Voltage clamp/ref
• TVS — TVS — Transient suppression
• ESD — ESD protection — Port ESD clamp
• SWI — Switching / small-signal — 1N4148/BAV
• BRG — Bridge rectifier — Full-bridge module
• LED — LED (indicator) — Light-emitting

Transistor (7 types)

• BJT — BJT — NPN/PNP small-signal
• MOS — MOSFET (Si) — Switching FET
• SCM — SiC MOSFET — HV traction switch
• GAN — GaN FET — HF power switch
• IGBT — IGBT — HV power switch
• JFET — JFET — Analog/RF
• DIG — Digital / bias-resistor — Built-in bias R

Integrated Circuit (IC) (21 types)

• MCU — Microcontroller — MCU/SoC
• LDO — LDO regulator — Linear regulator
• DCD — DC-DC converter IC — Buck/boost controller
• PMU — PMIC / power management — Multi-rail PMIC
• BMS — Battery management (BMS AFE) — Cell monitor/balance
• DRV — Gate / motor driver — MOSFET/IGBT/motor driver
• AMP — Amplifier / op-amp — Signal amplifier
• CMP — Comparator — Threshold compare
• VRF — Voltage reference — Precision reference
• ADC — ADC — Analog-to-digital
• DAC — DAC — Digital-to-analog
• ISO — Isolator / optocoupler — Galvanic isolation
• XCV — Transceiver (CAN/RS-485) — Bus transceiver
• AFE — Analog front end — Sensor/metering AFE
• MEM — Memory (Flash/EEPROM) — Non-volatile memory
• LOG — Logic gate — Gates/translators/buffers
• SEN — Sensor IC — On-chip sensor
• IFC — Interface / expander — I/O/level/expander
• CLK — Clock / RTC — Timing / real-time clock
• SVR — Supervisor / reset — Voltage supervisor
• MTR — Energy metering — Power metering IC

Protection Device (5 types)

• FUS — Fuse — One-time fuse
• RSF — Resettable fuse / PPTC — Polyfuse
• VAR — Varistor / MOV — Surge clamp
• GDT — Gas-discharge tube — Surge diverter
• CBK — Circuit breaker / RCBO — Resettable breaker

Power Conversion Module (7 types)

• DCM — DC-DC converter module — Point-of-load brick
• IDC — Isolated DC-DC module — Isolated brick
• INV — Inverter (DC-AC) — Motor/grid inverter
• OBC — On-board charger (OBC) — AC-DC EV charger
• CHG — Battery charger module — Charger assembly
• PSU — AC-DC power supply (SMPS) — Mains SMPS
• RCM — Rectifier module — Power rectifier block

Relay / Contactor (5 types)

• RLS — Signal relay — Low-current relay
• RLP — Power relay — High-current relay
• SSR — Solid-state relay — Semiconductor relay
• RLR — Reed relay — Reed-switch relay
• CTC — Contactor — HV/HC contactor

Switch / Button (5 types)

• SWT — Tactile switch — PCB tact
• PBT — Push button — Panel/PCB button
• DSW — DIP / slide switch — Config switch
• RSW — Rocker / toggle — Power switch
• RSY — Rotary switch — Selector

Connector (7 types)

• CWB — Wire-to-board — JST/Molex
• CBB — Board-to-board — Stacking
• HDR — Pin header / socket — 2.54/1.27 header
• FFC — FFC / FPC — Flat-flex
• USB — USB / data — USB/RJ45
• PWC — Power / high-current — Power connector
• TBK — Terminal block — Screw/spring terminal

Antenna / RF (5 types)

• ANC — Chip antenna — SMD antenna
• ANP — PCB / trace antenna — Etched antenna
• ANE — External / whip antenna — Cable/whip
• SAW — SAW filter — RF band filter
• RFM — RF / wireless module — BLE/WiFi/LTE module

Crystal / Oscillator / Timing (4 types)

• XTL — Crystal — Quartz crystal
• OSC — Crystal oscillator (XO) — Packaged oscillator
• MMO — MEMS oscillator — MEMS timing
• RSN — Ceramic resonator — Low-cost resonator

Battery / Cell (6 types)

• CLI — Li-ion cell — Cylindrical/pouch
• CLF — LiFePO4 cell — LFP cell
• CCO — Coin / button cell — Backup coin cell
• CNI — NiMH cell — NiMH
• BPK — Battery pack — Assembled pack
• CHL — Cell holder — Coin/AA holder

Audible / Indicator (4 types)

• BUZ — Magnetic buzzer — Driven buzzer
• PBZ — Piezo buzzer — Self/ext-drive piezo
• SPK — Speaker — Audio speaker
• IND — Indicator lamp / pilot light — Panel indicator

Display / HMI (4 types)

• DSG — 7-segment LED display — Numeric display
• OLE — OLED module — OLED graphic
• LCD — LCD module — Char/graphic LCD
• TFT — TFT display — Color TFT

Sensor (discrete / module) (6 types)

• STE — Temperature sensor — NTC/IC temp
• SCU — Current sensor (Hall) — Isolated current
• SVO — Voltage / isolated sensor — HV sensing
• SHA — Hall / position sensor — Position/speed
• SIM — IMU / accelerometer — Motion sensing
• SPR — Pressure sensor — Pressure/altitude

Thermal / Cooling (3 types)

• FAN — Fan — Cooling fan
• HSK — Heatsink — Thermal dissipation
• TPD — Thermal pad / interface — TIM