BZX84-C18,215 price and stock

BZX84-C18,215 Details
Register or Sign In to sort your Preferred Distributors to the top of the list!

Authorized Distributors

  • Acme Chip Technology
  • Analog Devices Inc
  • Arrow
  • Avnet Americas
  • Bisco
  • Bürklin Elektronik
  • CDM Electronics
  • Chip 1 Exchange
  • Chip1Stop
  • CHIPMALL.COM LIMITED
  • Coilcraft
  • ComSIT USA
  • DB Roberts
  • DigiKey
  • Dynamic Solutions
  • ElectroCraft
  • Electroshield
  • element14
  • ES Components
  • Fairview Microwave
  • Farnell
  • FDH Electronics
  • Flip Electronics
  • Future Electronics
  • GLYN
  • Heilind Electronics
  • Interstate Connecting
  • Jameco
  • Karl Kruse
  • L-com US
  • Maritex
  • Master Electronics
  • Microchip Technology
  • Mouser
  • NAC
  • New Advantage
  • Newark
  • Onlinecomponents.com
  • Ozdisan Elektronik
  • Pasternack Enterprises
  • PEI Genesis
  • Perfect Parts
  • PolyPhaser
  • Powell Electronics
  • Power & Signal
  • PUI
  • Renesas Electronics America
  • Richardson RFPD
  • Rochester
  • RS
  • Rutronik
  • Sager
  • Samtec
  • SiTime Corporation
  • South Electronics
  • Standard Electric
  • STMicroelectronics
  • Symmetry
  • Techni-Tool
  • TestEquity
  • TME
  • Toby Electronics
  • TTI
  • Venkel Ltd.
  • Verical
  • Waytek, Inc.
  • Wuhan P&S

Independent Distributors

  • Ameya
  • Bristol
  • Chip Stock
  • Chip-Germany GmbH
  • Chip1Cloud
  • Chips Pulse
  • Component Electronics, Inc
  • CoreStaff
  • Direct Components
  • EnteerMall
  • Futuretech Components
  • GlobX GmbH
  • LCSC
  • MacroQuest
  • Neutron USA
  • NexGen Digital
  • Quest
  • SEMIX
  • Sense Electronic
  • Sensible Micro Corp
  • Shengyu Electronics
  • Velocity Electronics
  • VRG Components
  • Vyrian
  • Win Source Electronics
Show Filters
Select Manufacturer
Top of Page ↑

Newark Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # 34AH7071
Nexperia Bzx84-C18/Sot23/To-236Ab Rohs Compliant: Yes |Nexperia BZX84-C18,215 Min Qty: 3000 Package Multiple: 1 Date Code: 0 Container: Reel BZX84-C18,215 Part Details 1017000
  • 12000 $0.0250
  • 6000 $0.0290
  • 3000 $0.0300
$0.0250 / $0.0300 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 33X4100
Nexperia Zener Single Diode, 18V, 5%, Sot-23, Zener Voltage Nom:18V, Power Dissipation:250Mw, Diode Case Style:Sot-23, No. Of Pins:3Pins, Operating Temperature Max:150°C, Diode Mounting:Surface Mount, Product Range:Bzx84C Series Rohs Compliant: Yes |Nexperia BZX84-C18,215 Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape BZX84-C18,215 Part Details 27605
  • 1000 $0.0170
  • 500 $0.0170
  • 250 $0.0170
  • 100 $0.0170
  • 50 $0.0170
  • 25 $0.0170
  • 10 $0.0170
  • 1 $0.0170
$0.0170 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 97W1990
Nexperia Diode, Zener, 18V, 250Mw, To-236Ab-3, Zener Voltage Vz Typ:18V, Power Dissipation Pd:250Mw, Diode Case Style:To-236Ab, Zener Tolerance ±:5%, No. Of Pins:3Pins, Operating Temperature Max:150°C, Product Range:Bzx84 Series, Automotive Rohs Compliant: Yes |Nexperia BZX84-C18,215 Min Qty: 3000 Package Multiple: 1 Date Code: 1 Container: Reel BZX84-C18,215 Part Details 0
  • 12000 $0.0250
  • 6000 $0.0290
  • 3000 $0.0300
$0.0250 / $0.0300 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

DigiKey ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # 2156-BZX84-C18,215-ND
NXP Semiconductors NOW NEXPERIA BZX84-C18 - ZENER D Min Qty: 13172 Container: Bulk MARKETPLACE PRODUCT BZX84-C18,215 Part Details 214789
In Stock
  • 13172 $0.0200
$0.0200 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 1727-3931-1-ND
Nexperia DIODE ZENER 18V 250MW TO236AB Min Qty: 1 Lead time: 6 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) BZX84-C18,215 Part Details 96436
In Stock
  • 150000 $0.0149
  • 75000 $0.0179
  • 30000 $0.0207
  • 9000 $0.0224
  • 6000 $0.0263
  • 3000 $0.0279
  • 1000 $0.0336
  • 500 $0.0484
  • 100 $0.0617
  • 10 $0.1140
  • 1 $0.1600
$0.0149 / $0.1600 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18215 DISTI # BZX84-C18,215
Nexperia Diode Zener Single 17.95V 5% 250mW 3-Pin SOT-23 T/R - Tape and Reel (Alt: BZX84-C18,215) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 6 Weeks, 0 Days Container: Reel BZX84-C18215 Part Details 1017000
  RFQ BZX84-C18215 Part Details
Top of Page ↑

Mouser Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # 771-BZX84-C18-T/R
Nexperia Zener Diodes BZX84-C18/SOT23/TO-236AB RoHS: Compliant BZX84-C18,215 Part Details 59633
  • 1 $0.1600
  • 10 $0.1040
  • 100 $0.0480
  • 1000 $0.0310
  • 3000 $0.0180
  • 9000 $0.0160
  • 45000 $0.0140
  • 99000 $0.0130
$0.0130 / $0.1600 Buy Now BZX84-C18,215 Part Details
BZX84-C18,235 DISTI # 771-BZX84-C18/T3
Nexperia Zener Diodes BZX84-C18/SOT23/TO-236AB RoHS: Compliant BZX84-C18,235 Part Details 26952
  • 1 $0.1500
  • 10 $0.0980
  • 100 $0.0460
  • 1000 $0.0270
  • 2500 $0.0250
  • 10000 $0.0170
  • 20000 $0.0150
  • 50000 $0.0140
  • 100000 $0.0130
$0.0130 / $0.1500 Buy Now BZX84-C18,235 Part Details
Top of Page ↑

Future Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
Nexperia BZX84 Series 18 V ±5 % 250 mW Surface Mount Voltage Regulator Diode - SOT-23 RoHS: Compliant pbFree: Yes Min Qty: 3000 Package Multiple: 3000 Container: Reel BZX84-C18,215 Part Details 1395000
Reel
  • 150000 $0.0109
  • 75000 $0.0115
  • 45000 $0.0117
  • 12000 $0.0122
  • 3000 $0.0127
$0.0109 / $0.0127 Buy Now BZX84-C18,215 Part Details
Nexperia BZX84 Series 18 V ±5 % 250 mW Surface Mount Voltage Regulator Diode - SOT-23 RoHS: Compliant pbFree: Yes Min Qty: 3000 Package Multiple: 3000 Container: Reel BZX84-C18,215 Part Details 333000
Reel
  • 120000 $0.0109
  • 75000 $0.0114
  • 30000 $0.0118
  • 12000 $0.0121
  • 3000 $0.0127
$0.0109 / $0.0127 Buy Now BZX84-C18,215 Part Details
Nexperia BZX84 Series 18 V ±5 % 250 mW Surface Mount Voltage Regulator Diode - SOT-23 RoHS: Compliant pbFree: Yes Min Qty: 57000 Package Multiple: 3000 Container: Reel BZX84-C18,215 Part Details 0
Reel
  • 120000 $0.0109
  • 75000 $0.0114
  • 30000 $0.0118
  • 12000 $0.0121
  • 3000 $0.0127
$0.0109 / $0.0127 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

Rochester Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
NXP Semiconductors BZX84-C18 - Zener Diode, 18V, 5%, 0.25W, Unidirectional, TO-236AB RoHS: Compliant Status: Active Min Qty: 1 BZX84-C18,215 Part Details 214789
  • 1000 $0.0195
  • 500 $0.0207
  • 100 $0.0216
  • 25 $0.0225
  • 1 $0.0230
$0.0195 / $0.0230 Buy Now BZX84-C18,215 Part Details
Nexperia BZX84-C18 - Zener Diode, 18V, 5%, 0.25W, Unidirectional, TO-236AB RoHS: Compliant Status: Active Min Qty: 1 BZX84-C18,215 Part Details 539000
  • 1000 $0.0195
  • 500 $0.0207
  • 100 $0.0216
  • 25 $0.0225
  • 1 $0.0230
$0.0195 / $0.0230 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

TTI ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # BZX84-C18 215
Nexperia Zener Diodes ZENER SOT23/TO-236AB RoHS: Compliant pbFree: Pb-Free Min Qty: 3000 Package Multiple: 3000 Container: Reel BZX84-C18,215 Part Details Americas - 903000
In Stock
  • 3000 $0.0134
  • 6000 $0.0132
  • 12000 $0.0128
  • 18000 $0.0125
  • 30000 $0.0123
  • 75000 $0.0112
$0.0112 / $0.0134 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

Bristol Electronics  

Part # Manufacturer Description Stock Price Price Range Buy
NXP Semiconductors   BZX84-C18,215 Part Details 1145   RFQ BZX84-C18,215 Part Details
Nexperia   Min Qty: 64 BZX84-C18,215 Part Details 14720
  • 5727 $0.0079
  • 668 $0.0131
  • 192 $0.0525
  • 64 $0.0788
$0.0079 / $0.0788 Buy Now BZX84-C18,215 Part Details
Philips Semiconductors   BZX84-C18,215 Part Details 4715   RFQ BZX84-C18,215 Part Details
Top of Page ↑

Quest Components  

Part # Manufacturer Description Stock Price Price Range Buy
Philips Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 27796
  • 7611 $0.0190
  • 1371 $0.0263
  • 1 $0.0584
$0.0190 / $0.0584 Buy Now BZX84-C18,215 Part Details
NXP Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 4879
  • 1371 $0.0263
  • 229 $0.0365
  • 1 $0.0584
$0.0263 / $0.0584 Buy Now BZX84-C18,215 Part Details
Nexperia Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 3000
  • 1371 $0.0263
  • 229 $0.0365
  • 1 $0.0584
$0.0263 / $0.0584 Buy Now BZX84-C18,215 Part Details
Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 58
  • 1 $0.0584
$0.0584 Buy Now
NXP Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 11776
  • 1430 $0.0105
  • 287 $0.0350
  • 1 $0.1050
$0.0105 / $0.1050 Buy Now BZX84-C18,215 Part Details
NXP Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 2400
  • 1588 $0.0210
  • 191 $0.0315
  • 1 $0.1050
$0.0210 / $0.1050 Buy Now BZX84-C18,215 Part Details
NXP Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 916
  • 120 $0.0473
  • 49 $0.0840
  • 1 $0.1050
$0.0473 / $0.1050 Buy Now BZX84-C18,215 Part Details
NXP Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 53904
  • 27398 $0.0256
  • 9133 $0.0292
  • 1 $0.1460
$0.0256 / $0.1460 Buy Now BZX84-C18,215 Part Details
Nexperia Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 25401
  • 9133 $0.0292
  • 762 $0.0438
  • 1 $0.1460
$0.0292 / $0.1460 Buy Now BZX84-C18,215 Part Details
NXP Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 2400
  • 762 $0.0438
  • 87 $0.0657
  • 1 $0.1460
$0.0438 / $0.1460 Buy Now BZX84-C18,215 Part Details
Philips Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 2217
  • 762 $0.0438
  • 87 $0.0657
  • 1 $0.1460
$0.0438 / $0.1460 Buy Now BZX84-C18,215 Part Details
Philips Semiconductors Zener Diode, Two Terminal, 18 Volt, 5%, SOT-23 BZX84-C18,215 Part Details 4391
  • 384 $0.0870
  • 44 $0.1305
  • 1 $0.2900
$0.0870 / $0.2900 Buy Now BZX84-C18,215 Part Details

View all 'BZX84-C18,215' results from Quest Components

Top of Page ↑

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18215 DISTI # BZX84-C18,215
Nexperia Diode Zener Single 17.95V 5% 250mW 3-Pin SOT-23 T/R - Tape and Reel (Alt: BZX84-C18,215) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 6 Weeks, 0 Days Container: Reel BZX84-C18215 Part Details 1017000
  RFQ BZX84-C18215 Part Details
Top of Page ↑

TME ECIA Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # BZX84-C18.215
Nexperia Diode: Zener, 0.25W, 18V, SMD, reel,tape, SOT23, Ifmax: 200mA Min Qty: 20 BZX84-C18,215 Part Details 5690
  • 12000 $0.0176
  • 3000 $0.0197
  • 500 $0.0221
  • 100 $0.0246
  • 20 $0.0577
$0.0176 / $0.0577 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18215 DISTI # BZX84-C18,215
Nexperia Diode Zener Single 17.95V 5% 250mW 3-Pin SOT-23 T/R - Tape and Reel (Alt: BZX84-C18,215) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 6 Weeks, 0 Days Container: Reel BZX84-C18215 Part Details 1017000
  RFQ BZX84-C18215 Part Details
Top of Page ↑

Chip 1 Exchange  

Part # Manufacturer Description Stock Price Price Range Buy
NXP Semiconductors INSTOCK BZX84-C18,215 Part Details 2007   RFQ BZX84-C18,215 Part Details
Nexperia INSTOCK BZX84-C18,215 Part Details 646671   RFQ BZX84-C18,215 Part Details
Top of Page ↑

Avnet Silica Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # BZX84-C18,215
Nexperia Diode Zener Single 17.95V 5% 250mW 3-Pin SOT-23 T/R (Alt: BZX84-C18,215) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 0 Weeks, 6 Days BZX84-C18,215 Part Details Silica - 4731000   Buy Now BZX84-C18,215 Part Details
Top of Page ↑

New Advantage Corporation Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
Nexperia BZX84 Series 18 V �5 % 250 mW Surface Mount Voltage Regulator Diode - SOT-23 RoHS: Compliant Min Qty: 1 Package Multiple: 3000 BZX84-C18,215 Part Details 1449000
  • 12000 $0.0150
  • 1449000 $0.0140
$0.0140 / $0.0150 Buy Now BZX84-C18,215 Part Details
Top of Page ↑

element14 Asia-Pacific Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # 1081411
Nexperia DIODE,ZENER,18V,0.25W RoHS: Compliant Min Qty: 5 Container: Cut Tape BZX84-C18,215 Part Details 39688
  • 5000 S$0.0310
  • 1000 S$0.0380
  • 500 S$0.0610
  • 100 S$0.0840
  • 10 S$0.1560
  • 5 S$0.2200
S$0.0310 / S$0.2200 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 1081411RL
Nexperia DIODE,ZENER,18V,0.25W RoHS: Compliant Min Qty: 500 Container: Reel BZX84-C18,215 Part Details 39688
  • 5000 S$0.0310
  • 1000 S$0.0380
  • 500 S$0.0610
S$0.0310 / S$0.0610 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 2319323
Nexperia DIODE, ZENER, 18V, 250MW, TO-236AB-3 RoHS: Compliant Min Qty: 3000 Container: Reel BZX84-C18,215 Part Details 0
  • 9000 S$0.0300
  • 3000 S$0.0370
S$0.0300 / S$0.0370 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215.. DISTI # 2319205
Nexperia DIODE, ZENER, 18V, 250MW, TO-236AB-3 RoHS: Compliant Min Qty: 5 Container: Cut Tape BZX84-C18,215.. Part Details 0
  • 1500 S$0.0430
  • 500 S$0.0440
  • 100 S$0.0820
  • 50 S$0.1170
  • 5 S$0.1520
S$0.0430 / S$0.1520 Buy Now BZX84-C18,215.. Part Details
BZX84-C18,215.. DISTI # 2319205RL
Nexperia DIODE, ZENER, 18V, 250MW, TO-236AB-3 RoHS: Compliant Min Qty: 100 Container: Reel BZX84-C18,215.. Part Details 0
  • 1500 S$0.0430
  • 500 S$0.0440
  • 100 S$0.0820
S$0.0430 / S$0.0820 Buy Now BZX84-C18,215.. Part Details

View all 'BZX84-C18,215' results from element14 Asia-Pacific

Top of Page ↑

EBV Elektronik Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # BZX84-C18,215
Nexperia Diode Zener Single 17.95V 5% 250mW 3-Pin SOT-23 T/R (Alt: BZX84-C18,215) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 1 Weeks, 1 Days BZX84-C18,215 Part Details EBV - 171000   Buy Now BZX84-C18,215 Part Details
Top of Page ↑

Avnet Asia Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18215 DISTI # BZX84-C18,215
Nexperia Diode Zener Single 17.95V 5% 250mW 3-Pin SOT-23 T/R (Alt: BZX84-C18,215) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 6 Weeks, 0 Days BZX84-C18215 Part Details 63000
  • 3450000 $0.0162
  • 1725000 $0.0166
  • 690000 $0.0170
  • 345000 $0.0175
  • 207000 $0.0177
  • 138000 $0.0179
  • 69000 $0.0182
$0.0162 / $0.0182 Buy Now BZX84-C18215 Part Details
Top of Page ↑

Farnell Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
BZX84-C18,215 DISTI # 4272393
Nexperia ZENER ARRAY DIODES RoHS: Compliant Min Qty: 18000 Lead time: 3 Weeks, 1 Days Container: Each BZX84-C18,215 Part Details 539000
  • 18000 £0.0170
£0.0170 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 1081411
Nexperia DIODE,ZENER,18V,0.25W RoHS: Compliant Min Qty: 5 Lead time: 40 Weeks, 1 Days Container: Cut Tape BZX84-C18,215 Part Details 27249
  • 5000 £0.0173
  • 1000 £0.0214
  • 500 £0.0366
  • 100 £0.0518
  • 10 £0.0990
  • 5 £0.1410
£0.0173 / £0.1410 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 1081411RL
Nexperia DIODE,ZENER,18V,0.25W RoHS: Compliant Min Qty: 500 Lead time: 40 Weeks, 1 Days Container: Reel BZX84-C18,215 Part Details 27249
  • 5000 £0.0173
  • 1000 £0.0214
  • 500 £0.0366
£0.0173 / £0.0366 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 2319323
Nexperia DIODE, ZENER, 18V, 250MW, TO-236AB-3 RoHS: Compliant Min Qty: 3000 Lead time: 7 Weeks, 1 Days Container: Reel BZX84-C18,215 Part Details 0
  • 9000 £0.0170
  • 3000 £0.0210
£0.0170 / £0.0210 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215 DISTI # 4272394
NXP Semiconductors   RoHS: Compliant Min Qty: 26595 Container: Each BZX84-C18,215 Part Details 0
  • 26595 £0.0160
£0.0160 Buy Now BZX84-C18,215 Part Details
BZX84-C18,215.. DISTI # 2319205
Nexperia DIODE, ZENER, 18V, 250MW, TO-236AB-3 RoHS: Compliant Min Qty: 5 Lead time: 7 Weeks, 1 Days Container: Cut Tape BZX84-C18,215.. Part Details 0
  • 1500 £0.0262
  • 500 £0.0269
  • 100 £0.0437
  • 50 £0.1220
  • 5 £0.1270
£0.0262 / £0.1270 Buy Now BZX84-C18,215.. Part Details
BZX84-C18,215.. DISTI # 2319205RL
Nexperia DIODE, ZENER, 18V, 250MW, TO-236AB-3 RoHS: Compliant Min Qty: 100 Lead time: 7 Weeks, 1 Days Container: Reel BZX84-C18,215.. Part Details 0
  • 1500 £0.0262
  • 500 £0.0269
  • 100 £0.0437
£0.0262 / £0.0437 Buy Now BZX84-C18,215.. Part Details

View all 'BZX84-C18,215' results from Farnell

Associated Part Details

Most Popular Zener Diodes

Most Popular Part Numbers