ON Semiconductor (onsemi) Manufacturer Skill

Company Overview

ON Semiconductor (onsemi) is a major semiconductor manufacturer that acquired Fairchild Semiconductor in 2016. The company inherited multiple part numbering conventions from various acquisitions including Fairchild, Motorola Semiconductor Products Sector, and others.

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MPN Structure by Product Family

MOSFETs - NTD/NTB/NTS Series (ON Semiconductor Native)

NT[PKG][VOLTAGE][CURRENT/RDS][CHANNEL][SUFFIX]
 |   |      |         |         |        |
 |   |      |         |         |        +-- L=Logic level, blank=standard
 |   |      |         |         +-- N=N-channel (may be embedded)
 |   |      |         +-- Current capability or RDS identifier
 |   |      +-- Voltage class
 |   +-- Package: D=DPAK, B=D2PAK, S=SO-8, R=SOT-23
 +-- NT = ON Semiconductor power MOSFET

Examples:

• NTD20N06L = N-channel, DPAK, 60V, 20A, Logic Level
• NTD2955 = P-channel equivalent of 2N2955 in DPAK
• NTD4809N = N-channel, DPAK, 30V, 88A
• NTB60N06 = N-channel, D2PAK, 60V, 60A

MOSFETs - FQP/FQD/FQB Series (Legacy Fairchild)

FQ[PKG][CURRENT][CHANNEL][VOLTAGE][SUFFIX]
 |   |     |        |        |       |
 |   |     |        |        |       +-- L=Logic level, blank=standard
 |   |     |        |        +-- Voltage / 10 (e.g., 06=60V, 20=200V)
 |   |     |        +-- N=N-channel, P=P-channel
 |   |     +-- Current rating (A)
 |   +-- Package: P=TO-220, D=DPAK, B=D2PAK, A=TO-3P
 +-- FQ = Fairchild QFET series

Examples:

• FQP50N06L = TO-220, 50A, N-channel, 60V, Logic Level
• FQP27P06 = TO-220, 27A, P-channel, 60V
• FQP4N20L = TO-220, 4A, N-channel, 200V, Logic Level
• FQD13N10 = DPAK, 13A, N-channel, 100V

MOSFETs - FDP/FDB/FDD Series (Legacy Fairchild PowerTrench)

FD[PKG][CURRENT/CODE][RDS][VOLTAGE][SUFFIX]
 |   |        |        |      |       |
 |   |        |        |      |       +-- Technology suffix (optional)
 |   |        |        |      +-- Voltage class
 |   |        |        +-- RDS identifier (mOhm related)
 |   |        +-- Device code or current
 |   +-- Package: P=TO-220, B=D2PAK, D=DPAK
 +-- FD = Fairchild PowerTrench MOSFET

Examples:

• FDP3680 = TO-220, PowerTrench, 100V
• FDD3680 = DPAK, PowerTrench, 100V
• FDB3632 = D2PAK, 100V, 73A

Transistors - 2N Series (JEDEC Standard)

2N[SEQUENCE][SUFFIX]
 |    |        |
 |    |        +-- A/B/C = grade improvement
 |    +-- JEDEC registration number (no encoded meaning)
 +-- 2N = JEDEC transistor prefix

Examples:

• 2N2222A = NPN general purpose
• 2N3904 = NPN general purpose
• 2N3906 = PNP general purpose
• 2N7000 = N-channel enhancement MOSFET
• 2N7002 = N-channel SMD MOSFET

Transistors - MMBT Series (Surface Mount)

MMBT[BASE][SUFFIX]
  |    |      |
  |    |      +-- Grade suffix (L=low, T1=tape & reel)
  |    +-- Equivalent 2N or base number
  +-- MMBT = Motorola Miniature Bipolar Transistor (SOT-23)

Examples:

• MMBT2222A = SMD equivalent of 2N2222A (SOT-23)
• MMBT3904 = SMD equivalent of 2N3904 (SOT-23)
• MMBT3906 = SMD equivalent of 2N3906 (SOT-23)
• MMBT4401 = NPN 40V transistor (SOT-23)
• MMBT4403 = PNP 40V transistor (SOT-23)

Transistors - MPS/MPSA Series

MPS[A][CODE]
 |   |   |
 |   |   +-- Device code
 |   +-- A = variant designation
 +-- MPS = Motorola Plastic Small (signal transistor)

Examples:

• MPSA42 = NPN high voltage (300V)
• MPSA92 = PNP high voltage (300V)
• MPS2222A = Plastic equivalent of 2N2222A

Voltage Regulators - MC78xx/MC79xx Series

MC78[VOLTAGE][GRADE][PACKAGE]
  |     |       |       |
  |     |       |       +-- Package suffix (CT=TO-220, CD=DPAK, etc.)
  |     |       +-- Grade: blank=std, A/B/C=improved
  |     +-- Output voltage (05=5V, 12=12V, 15=15V, etc.)
  +-- MC78 = Motorola positive regulator / MC79 = negative regulator

Examples:

• MC7805CT = +5V, 1A, TO-220
• MC7812ACT = +12V, 1A, improved, TO-220
• MC78L05ACP = +5V, 100mA, plastic
• MC7905CT = -5V, 1A, TO-220
• MC79M12CT = -12V, 500mA, TO-220

Voltage Regulators - MC33xx Series (Switching)

MC33[CODE][VARIANT][PACKAGE]
  |    |      |        |
  |    |      |        +-- Package designator
  |    |      +-- Variant/feature code
  |    +-- Device code
  +-- MC33 = Motorola switching regulator family

Examples:

• MC33063AD = DC-DC converter, SOIC
• MC34063A = 1.5A switching regulator
• MC33167T = 5A switching regulator, TO-220

Voltage Regulators - NCP Series (Newer ON Semi)

NCP[CODE][VARIANT][PACKAGE]
  |   |      |        |
  |   |      |        +-- Package designator
  |   |      +-- Feature/variant code
  |   +-- Device family code
  +-- NCP = ON Semiconductor power IC

Examples:

• NCP1117ST33T3G = 3.3V LDO, SOT-223, tape & reel
• NCP1117DT33G = 3.3V LDO, DPAK
• NCP5500 = Ultra-low Iq LDO

Diodes - RL Series (Standard Rectifiers)

RL20[VOLTAGE CODE]
  |        |
  |        +-- 1=50V, 2=100V, 3=200V, 4=400V, 5=600V, 6=800V, 7=1000V
  +-- RL20 = 2A standard recovery rectifier series

Examples:

• RL201 = 50V, 2A rectifier (DO-41)
• RL204 = 400V, 2A rectifier (DO-41)
• RL207 = 1000V, 2A rectifier (DO-41)

Diodes - MUR Series (Ultra-Fast Recovery)

MUR[CURRENT][VOLTAGE]
  |     |       |
  |     |       +-- Voltage rating / 10 (e.g., 20=200V)
  |     +-- Current rating in Amps
  +-- MUR = Motorola Ultra-fast Recovery

Examples:

• MUR120 = 1A, 200V ultra-fast
• MUR460 = 4A, 600V ultra-fast
• MUR1520 = 15A, 200V ultra-fast

Diodes - MBR/MBRS Series (Schottky)

MBR[S][CURRENT][VOLTAGE]
  |  |     |       |
  |  |     |       +-- Voltage rating / 10
  |  |     +-- Current rating
  |  +-- S = Surface mount version
  +-- MBR = Motorola Barrier Rectifier (Schottky)

Examples:

• MBR1045 = 10A, 45V Schottky (TO-220)
• MBR2045CT = 20A, 45V dual Schottky (TO-220)
• MBRS340 = 3A, 40V SMD Schottky (SMC)

Diodes - 1N47xx/1N52xx Series (Zener)

1N[SERIES][CODE][SUFFIX]
 |    |      |      |
 |    |      |      +-- Grade suffix (A, B, C, etc.)
 |    |      +-- Voltage code within series
 |    +-- 47=1W Zener, 52=0.5W Zener
 +-- 1N = JEDEC diode prefix

Examples:

• 1N4733A = 5.1V Zener, 1W
• 1N4742A = 12V Zener, 1W
• 1N5231B = 5.1V Zener, 0.5W
• 1N5242B = 12V Zener, 0.5W

Op-Amps - MC Series

MC[BASE][VARIANT][PACKAGE]
 |   |      |        |
 |   |      |        +-- Package code
 |   |      +-- Grade variant
 |   +-- Device base number
 +-- MC = Motorola integrated circuit

Examples:

• MC1458 = Dual op-amp (equivalent to LM1458)
• MC324 = Quad op-amp (equivalent to LM324)
• MC741 = Single op-amp (equivalent to LM741)

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Package Codes

Through-Hole Packages

Code	Package	Current	Notes
CT	TO-220	1A+	Standard power
T	TO-220	1A+	Alternate code
ACP	TO-92	100mA	Plastic small
P	DIP	-	Dual in-line
N	DIP	-	Alternate for DIP

Surface Mount Packages

Code	Package	Notes
D	SOIC	Standard SOIC-8/14/16
DT	DPAK (TO-252)	Power SMD
BD	D2PAK (TO-263)	High power SMD
DW	SOIC-Wide	Wide body
PW	TSSOP	Thin shrink SOP
DGK	MSOP	Mini SOP
DBV	SOT-23	Small outline
T3G	SOT-23 Tape	SOT-23 with T&R

Diode Packages

Code	Package	Notes
RL	DO-41	Standard axial
G	DO-35	Small signal
T	TO-220	Power diode
FP	TO-220F	Fully isolated
SMB	DO-214AA	Surface mount
SMC	DO-214AB	Larger SMD

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Temperature Grades & Prefixes

Automotive Prefix (NCV)

NCV[BASE PART NUMBER]
  |
  +-- Automotive grade, AEC-Q100/Q101 qualified
      Temperature: -40C to +125C
      PPAP capable

Examples:

• NCV7805 = Automotive version of MC7805
• NCV8402 = Automotive power MOSFET

Temperature Suffixes

Suffix	Range	Application
(none)	0C to +70C	Commercial
I	-40C to +85C	Industrial
E	-40C to +125C	Extended

Grade Suffixes

Suffix	Meaning
A	Improved tolerance/specs
B	Further improved
C	Premium grade
L	Logic level (MOSFETs)
G	Green/RoHS compliant
T1	Tape & reel (SOT-23)
T3G	Tape & reel + Green

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Common Series Reference

Popular MOSFETs

Part Number	Type	Vds	Id	Package
FQP50N06L	N-ch Logic	60V	50A	TO-220
FQP27P06	P-ch	60V	27A	TO-220
NTD20N06L	N-ch Logic	60V	20A	DPAK
NTD2955	P-ch	60V	12A	DPAK
2N7000	N-ch	60V	200mA	TO-92
2N7002	N-ch	60V	115mA	SOT-23
FDB3632	N-ch	100V	73A	D2PAK

Popular Transistors

Part Number	Type	Vceo	Ic	Package
2N2222A	NPN	40V	600mA	TO-18/TO-92
2N3904	NPN	40V	200mA	TO-92
2N3906	PNP	40V	200mA	TO-92
MMBT2222A	NPN	40V	600mA	SOT-23
MMBT3904	NPN	40V	200mA	SOT-23
MMBT3906	PNP	40V	200mA	SOT-23
MPSA42	NPN	300V	500mA	TO-92

Popular Regulators

Part Number	Output	Current	Package
MC7805CT	+5V	1A	TO-220
MC7812CT	+12V	1A	TO-220
MC78L05ACP	+5V	100mA	TO-92
MC7905CT	-5V	1A	TO-220
NCP1117ST33T3G	+3.3V	1A	SOT-223
MC33063AD	Variable	1.5A	SOIC-8

Popular Diodes

Part Number	Type	Vrrm	If	Package
RL207	Rectifier	1000V	2A	DO-41
MUR460	Ultra-fast	600V	4A	TO-220
MBR1045	Schottky	45V	10A	TO-220
MBRS340	Schottky	40V	3A	SMC
1N4733A	Zener	5.1V	1W	DO-41
1N4742A	Zener	12V	1W	DO-41

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Handler Implementation Notes

Issues Found in Current OnSemiHandler

1. HashSet usage (line 39): Uses mutable

   HashSet

   instead of

   Set.of()

   or

   EnumSet

   for immutability
2. Limited MOSFET patterns: No patterns for NTD, FQP, FDP series MOSFETs
3. Limited transistor patterns: No patterns for 2N, MMBT, MPSA series transistors
4. Missing NCP regulator patterns: Only covers MC78xx/MC79xx, missing NCP series
5. Package extraction logic: Only handles diode packages, missing MOSFET/transistor package codes
6. Series extraction incomplete: Does not extract series for MOSFETs or transistors

Recommended Pattern Additions

// MOSFETs - ON Semi native
registry.addPattern(ComponentType.MOSFET, "^NT[DBSR][0-9]+.*");
registry.addPattern(ComponentType.MOSFET_ONSEMI, "^NT[DBSR][0-9]+.*");

// MOSFETs - Fairchild legacy
registry.addPattern(ComponentType.MOSFET, "^FQ[PDBA][0-9]+.*");
registry.addPattern(ComponentType.MOSFET_ONSEMI, "^FQ[PDBA][0-9]+.*");
registry.addPattern(ComponentType.MOSFET, "^FD[PDB][0-9]+.*");
registry.addPattern(ComponentType.MOSFET_ONSEMI, "^FD[PDB][0-9]+.*");

// Small signal MOSFETs
registry.addPattern(ComponentType.MOSFET, "^2N7[0-9]{3}.*");
registry.addPattern(ComponentType.MOSFET_ONSEMI, "^2N7[0-9]{3}.*");
registry.addPattern(ComponentType.MOSFET, "^BSS[0-9]+.*");
registry.addPattern(ComponentType.MOSFET_ONSEMI, "^BSS[0-9]+.*");

// Transistors
registry.addPattern(ComponentType.TRANSISTOR, "^2N[0-9]{4}.*");
registry.addPattern(ComponentType.TRANSISTOR, "^MMBT[0-9]+.*");
registry.addPattern(ComponentType.TRANSISTOR, "^MPS[A]?[0-9]+.*");
registry.addPattern(ComponentType.TRANSISTOR, "^BC[0-9]{3}.*");

// NCP voltage regulators
registry.addPattern(ComponentType.VOLTAGE_REGULATOR, "^NCP[0-9]+.*");
registry.addPattern(ComponentType.VOLTAGE_REGULATOR_LINEAR_ON, "^NCP[0-9]+.*");

Package Extraction Improvements

// MOSFET package extraction
if (upperMpn.startsWith("FQP") || upperMpn.endsWith("CT")) return "TO-220";
if (upperMpn.startsWith("FQD") || upperMpn.matches(".*DT$")) return "DPAK";
if (upperMpn.startsWith("FQB") || upperMpn.matches(".*BD$")) return "D2PAK";
if (upperMpn.startsWith("NTD")) return "DPAK";
if (upperMpn.startsWith("NTB")) return "D2PAK";

// Transistor package extraction
if (upperMpn.startsWith("MMBT") || upperMpn.matches(".*T1$")) return "SOT-23";
if (upperMpn.startsWith("2N") && !upperMpn.startsWith("2N7")) return "TO-92";
if (upperMpn.startsWith("MPS")) return "TO-92";

Series Extraction Improvements

// MOSFET series
if (mpn.matches("(?i)^NTD.*")) return "NTD";
if (mpn.matches("(?i)^NTB.*")) return "NTB";
if (mpn.matches("(?i)^FQP.*")) return "FQP";
if (mpn.matches("(?i)^FQD.*")) return "FQD";
if (mpn.matches("(?i)^FDP.*")) return "FDP";
if (mpn.matches("(?i)^FDD.*")) return "FDD";
if (mpn.matches("(?i)^FDB.*")) return "FDB";

// Transistor series
if (mpn.matches("(?i)^MMBT.*")) return "MMBT";
if (mpn.matches("(?i)^2N[0-9]+.*")) return "2N";
if (mpn.matches("(?i)^MPS[A]?.*")) return "MPS";

// Regulator series
if (mpn.matches("(?i)^NCP[0-9]+.*")) return "NCP";

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Related Files

• Handler:

  manufacturers/OnSemiHandler.java

• Component types:

  MOSFET_ONSEMI

  ,

  IGBT_ONSEMI

  ,

  VOLTAGE_REGULATOR_LINEAR_ON

  ,

  VOLTAGE_REGULATOR_SWITCHING_ON

  ,

  LED_DRIVER_ONSEMI

  ,

  MOTOR_DRIVER_ONSEMI

  ,

  OPAMP_ON

  ,

  DIODE_ON

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Learnings & Edge Cases

• Fairchild acquisition: ON Semiconductor acquired Fairchild in 2016, inheriting FQP/FDP/FDD nomenclature
• Motorola heritage: MC78xx, MC79xx, MUR, MBR series come from Motorola semiconductor division
• JEDEC standards: 2N and 1N prefixes follow JEDEC numbering (no encoded specs in number)
• Logic level: "L" suffix indicates logic-level gate threshold (~2.5V Vgs max)
• Automotive grade: NCV prefix indicates AEC-Q100/Q101 qualified automotive parts
• Cross-reference needed: Many parts have equivalents across ON Semi, Fairchild, and other sources
• Package suffix variations: CT vs T both mean TO-220; DT means DPAK

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