Part Number
2N1711
Manufacturer
Description
TRANS NPN 50V 0.5A TO-39
Datasheet
Package
TO-205AD, TO-39-3 Metal Can
In Stock
7,840 piece(s)
Unit Price
Request a Quote
Lead Time
Can Ship Immediately
Estimated Delivery Time
Dec 25 - Dec 30 ( Choose Expedited Shipping)
Request for Quotation
Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.
Do you have any question about 2N1711?
+86-755-83210559 ext. 807
Part Number # 2N1711 (Transistors - Bipolar (BJT) - Single) is manufactured by Central Semiconductor Corpand distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.
For 2N1711specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add 2N1711 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of 2N1711.
Addi***** Gross
April 7, 2023
Kyla*****llock
March 2, 2023
Chan***** Kibe
March 2, 2023
Eva*****gde
March 1, 2023
Vivi*****Tara
February 23, 2023
Rael*****lair
February 19, 2023
Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market,
and our agent will prompt you to finish the order if you accept our offers.
We have a professional and experienced quality control team to strictly verify and test the2N1711. All suppliers must pass our qualification reviews before they can publish their products including 2N1711 on Heisener;we pay more attention to the channels and quality of 2N1711products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the 2N1711 price and inventory displayed accurate?The price and inventory of 2N1711 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.
Warm Tips: Some orders in certain payment forms may require handling fee.
Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.
Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.
Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the 2N1711 we delivered, we will accept the replacement or return of the 2N1711 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of2N1711.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
If you need any after-sales service, please do not hesitate to contact us.
We guarantee 100% customer satisfaction.
Our experienced sales team and tech support team back our services to satisfy all our customers.
We provide 90 days warranty.
If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.
Part Number | Manufacturer | Description | Stock |
JANTX2N1711 D# V37:1799_09109593 |
Microchip Technology Inc |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Tray RoHS: Not Compliant
|
0 |
2N1711 D# E54:1762_01593055 |
Microchip Technology Inc |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Tray RoHS: Not Compliant
|
0 |
JANTX2N1711S D# VN6:3635_17118382 |
Microsemi Corporation |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Bag RoHS: Not Compliant
|
0 |
2N1711 PBFREE D# V36:1790_22996927 |
Central Semiconductor Corp |
Trans GP BJT NPN 50V 0.5A 800mW 3-Pin TO-39 RoHS: Compliant
|
0 |
JAN2N1711 D# VN6:3635_17118166 |
Microsemi Corporation |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Tray RoHS: Not Compliant
|
0 |
JAN2N1711S D# VN6:3635_17118165 |
Microsemi Corporation |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Bag RoHS: Not Compliant
|
0 |
Part Number | Manufacturer | Description | Stock |
2N1711 PBFREE D# 2N1711 PBFREE |
Central Semiconductor Corp |
Transistor GP BJT NPN 50V 3-Pin TO-39 Box - Boxed Product (Development Kits) (Alt: 2N1711 PBFREE) RoHS: Compliant
|
0 |
JAN2N1711 D# JAN2N1711 |
VPT Components |
- Bulk (Alt: JAN2N1711) |
0 |
2N1711SJANTX D# JANTX2N1711S |
Microchip Technology Inc |
POWER BJT (Alt: JANTX2N1711S) RoHS: Not Compliant
|
0 |
JAN2N1711S D# JAN2N1711S |
VPT Components |
- Bulk (Alt: JAN2N1711S) |
0 |
440HS002N1711-3N D# 440HS002N1711-3N |
Glenair Inc |
ADAPTER - Bulk (Alt: 440HS002N1711-3N) RoHS: Not Compliant
|
0 |
JANTXV2N1711S D# JANTXV2N1711S |
VPT Components |
- Bulk (Alt: JANTXV2N1711S) |
0 |
JANTX2N1711 D# JANTX2N1711 |
Microchip Technology Inc |
- Trays (Alt: JANTX2N1711) RoHS: Not Compliant
|
0 |
2N1711 D# 2N1711 |
Central Semiconductor Corp |
Bipolar Transistor NPN Amplifier/Switch 500mA 50V 3-Pin TO-39 Through Hole Box - Boxed Product (Development Kits) (Alt: 2N1711) RoHS: Not Compliant
|
0 |
2N1711 TIN/LEAD D# 2N1711 TIN/LEAD |
Central Semiconductor Corp |
Transistor GP BJT NPN 50V 3-Pin TO-39 Box - Boxed Product (Development Kits) (Alt: 2N1711 TIN/LEAD) RoHS: Not Compliant
|
0 |
JANTXV2N1711 D# JANTXV2N1711 |
VPT Components |
- Bulk (Alt: JANTXV2N1711) |
0 |
JANTX2N1711S D# JANTX2N1711S |
VPT Components |
- Bulk (Alt: JANTX2N1711S) |
0 |
2N1711S D# 2N1711S |
Microchip Technology Inc |
Trans GP BJT NPN 75V 500mA 3-Pin TO-5 Bag - Bag (Alt: 2N1711S) RoHS: Not Compliant
|
0 |
2N1711SJAN D# JAN2N1711S |
Microchip Technology Inc |
POWER BJT (Alt: JAN2N1711S) RoHS: Not Compliant
|
0 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 2N1711 |
Microchip Technology Inc |
NPN Transistor (Alt: 2N1711) RoHS: Not Compliant
|
0 |
Part Number | Manufacturer | Description | Stock |
2N1711S |
New Jersey Semiconductor Products, Inc. | 1034 | |
2N1711 |
STMicroelectronics | 24 | |
JAN2N1711 |
Fairchild Semiconductor Corporation | 15 |
Part Number | Manufacturer | Description | Stock |
2N1711-T D# 26S9650 |
Continental Device India Ltd |
Transistor 2N1711 |
1 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
SPC Multicomp |
TRANSISTOR |
26165 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
STMicroelectronics |
Small Signal Bipolar Transistor, 0.5A I(C), 1-Element, NPN, Silicon, TO-39 RoHS: Not Compliant
|
0 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 2383-2N1711-ND |
Solid State Devices Inc (SSDI) |
TRANS NPN 130V 1A TO39 |
920 |
JAN2N1711 D# 1086-16078-ND |
Microchip Technology Inc |
TRANS NPN 30V 0.5A TO-39 |
0 |
2N1711 PBFREE D# 1514-2N1711PBFREE-ND |
Central Semiconductor Corp |
TRANS NPN 50V 0.5A TO-39 |
1409 |
JANTX2N1711 D# 1086-16079-ND |
Microchip Technology Inc |
TRANS NPN 30V 0.5A TO-5 |
0 |
JANTX2N1711S D# 1086-15489-ND |
Microchip Technology Inc |
TRANS NPN 30V 0.5A TO-39 |
2 |
2N1711S D# 2N1711S-ND |
Microchip Technology Inc |
NPN TRANSISTOR |
0 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 2N1711 |
STMicroelectronics |
Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct |
11 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
Fairchild Semiconductor Corporation |
In stock shipping within 2days |
1375 |
2N1711S |
Toshiba America Electronic Components |
In stock shipping within 2days |
348 |
JANTX2N1711S |
Motorola Semiconductor Products |
In stock shipping within 2days |
356 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 1611558 |
SPC Multicomp |
TRANSISTOR RoHS: Compliant
Min Qty: 1
Container: Each
|
25904 |
Part Number | Manufacturer | Description | Stock |
2N1711 L/F |
NEW AND ORGINAL. ISRAEL W.HOUSE |
106 |
Part Number | Manufacturer | Description | Stock |
2N1711 PBFREE |
Central Semiconductor Corp |
2N1711 Series 50 V 500 mA NPN Through Hole Silicon Transistor - TO-39 RoHS: Compliant
pbFree: Yes
|
998 |
Part Number | Manufacturer | Description | Stock |
2N1711A |
New Jersey Semiconductor Products Inc |
OEM/CM QUOTES ONLY | NO BROKERS |
1044 |
2N1711 |
SPC Multicomp |
OEM/CM QUOTES ONLY | NO BROKERS |
27419 |
2N1711SJANTX |
RAYTHEON |
OEM/CM QUOTES ONLY | NO BROKERS |
69 |
2N1711PBFREE |
CENTRAL SEMICONDUCTOR COR |
OEM/CM QUOTES ONLY | NO BROKERS |
1815 |
2N1711FRD |
OEM/CM QUOTES ONLY | NO BROKERS |
1724 | |
2N1711LEADFREE |
CENTRAL SEMICONDUCTOR COR |
OEM/CM QUOTES ONLY | NO BROKERS |
1815 |
2N1711ATDSI |
DSI |
OEM/CM QUOTES ONLY | NO BROKERS |
96 |
2N1711DIE |
RAY |
OEM/CM QUOTES ONLY | NO BROKERS |
2373 |
2N1711LL |
CSF |
OEM/CM QUOTES ONLY | NO BROKERS |
57 |
JAN2N1711S |
Raytheon Semiconductor Di |
OEM/CM QUOTES ONLY | NO BROKERS |
2165 |
2N1711STX |
SES |
OEM/CM QUOTES ONLY | NO BROKERS |
1 |
JAN2N1711 |
CFJ CRP FSC TELEDYNE TELE |
OEM/CM QUOTES ONLY | NO BROKERS |
5493 |
JAN2N1711L |
Teledyne Relays |
OEM/CM QUOTES ONLY | NO BROKERS |
325 |
2N1711H |
MOTO |
OEM/CM QUOTES ONLY | NO BROKERS |
3 |
JANTX2N1711 |
OEM/CM QUOTES ONLY | NO BROKERS |
5800 | |
2N1711JJAN |
Teledyne Relays |
OEM/CM QUOTES ONLY | NO BROKERS |
316 |
2N1711JANTX |
NES |
OEM/CM QUOTES ONLY | NO BROKERS |
35 |
JANTX2N1711S |
N/A |
OEM/CM QUOTES ONLY | NO BROKERS |
336 |
2N1711B |
SYNERTE |
OEM/CM QUOTES ONLY | NO BROKERS |
33 |
Part Number | Manufacturer | Description | Stock |
2N1711TEXAS |
Texas Instruments |
OEM/CM ONLY |
548 |
JAN2N1711JS |
Microchip Technology Inc |
OEM/CM ONLY |
170 |
USN2N1711 |
Texas Instruments |
OEM/CM ONLY |
248 |
2N1711USN |
Texas Instruments |
OEM/CM ONLY |
1025 |
JAN2N1711CFJ |
Texas Instruments |
OEM/CM ONLY |
143 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
STMicroelectronics |
in stock - can ship the same day |
200 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
Fairchild Semiconductor Corporation |
OEM/CM Immediate delivery |
1375 |
2N1711S |
Toshiba America Electronic Components |
OEM/CM Immediate delivery |
248 |
Part Number | Manufacturer | Description | Stock |
2N1711S D# 494-2N1711S |
Microchip Technology Inc |
Bipolar Transistors - BJT BJTs RoHS: Not Compliant
|
95 |
2N1711 PBFREE D# 610-2N1711 |
Central Semiconductor Corp |
Bipolar Transistors - BJT NPN Ampl/Switch RoHS: Compliant
|
1845 |
Part Number | Manufacturer | Description | Stock |
JANTX2N1711S |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JANTX2N1711S-LC |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
2N1711S |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JAN2N1711S-LC |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
2N1711 |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JANTXV2N1711S |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JAN2N1711S |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JAN2N1711 |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JANTX2N1711-LC |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JANTX2N1711 |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JANTXV2N1711S-LC |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
JAN2N1711-LC |
Microchip Technology Inc |
BJTs RoHS: Compliant
|
0 |
Part Number | Manufacturer | Description | Stock |
JANTX2N1711S D# MCHP00000068518 |
Microchip Technology Inc |
BJTs |
0 |
JAN2N1711S D# MCHP00000060209 |
Microchip Technology Inc |
BJTs |
0 |
JAN2N1711 D# MCHP00000060207 |
Microchip Technology Inc |
BJTs |
0 |
JANTX2N1711S-LC D# MCHP00000068519 |
Microchip Technology Inc |
BJTs |
0 |
JAN2N1711S-LC D# MCHP00000060210 |
Microchip Technology Inc |
BJTs |
0 |
2N1711 D# MCHP00000046827 |
Microchip Technology Inc |
BJTs |
0 |
JANTXV2N1711S D# MCHP00000073901 |
Microchip Technology Inc |
BJTs |
0 |
2N1711S D# MCHP00000046828 |
Microchip Technology Inc |
BJTs |
0 |
JANTX2N1711-LC D# MCHP00000068517 |
Microchip Technology Inc |
BJTs |
0 |
JAN2N1711-LC D# MCHP00000060208 |
Microchip Technology Inc |
BJTs |
0 |
JANTX2N1711 D# MCHP00000068516 |
Microchip Technology Inc |
BJTs |
0 |
JANTXV2N1711S-LC D# MCHP00000073902 |
Microchip Technology Inc |
BJTs |
0 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 35C0685 |
SPC Multicomp |
BIPOLAR TRANSISTOR, NPN, 50V, TO-39, Transistor Polarity:NPN, Collector Emitter Voltage V(br)ceo:50V, DC Collector Current:500mA, Power Dissipation Pd:800mW, Transistor Mounting:Through Hole, No. of Pins:3Pins, Product Range:-, MSL:-RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Bulk
|
20474 |
Part Number | Manufacturer | Description | Stock |
2N1711DB(CHIP) D# NS-2N1711DB(CHIP) |
Zetex / Diodes Inc |
OEM/CM ONLY |
2565 |
2N1711S D# NS-2N1711S |
Microsemi Corporation |
OEM/CM ONLY |
2929 |
2N1711S+JAN D# NS-2N1711S+JAN |
Defense Logistics Agency |
OEM/CM ONLY |
2421 |
2N1711DC(CHIP) D# NS-2N1711DC(CHIP) |
Zetex / Diodes Inc |
OEM/CM ONLY |
1611 |
2N1711+JANTX D# NS-2N1711+JANTX |
Defense Logistics Agency |
OEM/CM ONLY |
2431 |
2N1711S+JANTX D# NS-2N1711S+JANTX |
Defense Logistics Agency |
OEM/CM ONLY |
1941 |
2N1711+JAN D# NS-2N1711+JAN |
Defense Logistics Agency |
OEM/CM ONLY |
1273 |
2N1711 D# NS-2N1711 |
STMicroelectronics |
OEM/CM ONLY |
1188 |
2N1711DA(CHIP) D# NS-2N1711DA(CHIP) |
Zetex / Diodes Inc |
OEM/CM ONLY |
2489 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
STMicroelectronics |
Bipolar Junction Transistor, NPN Type, TO-39 |
19 |
JAN2N1711S |
Raytheon |
Bipolar Junction Transistor, NPN Type, TO-39 |
1866 |
JAN2N1711 |
Crp |
Bipolar Junction Transistor, NPN Type, TO-39 |
1 |
JAN2N1711L |
Teledyne Relays |
SEMI |
280 |
JANTX2N1711 |
Fairchild Semiconductor Corporation |
Bipolar Junction Transistor, NPN Type, TO-39 |
2 |
JANTX2N1711S |
-- |
Bipolar Junction Transistor, NPN Type, TO-39 |
4 |
Part Number | Manufacturer | Description | Stock |
2N1711SJAN D# 2N1711SJAN |
Raytheon |
Semiconductor |
502 |
2N1711 D# 2N1711 |
Advanced Semiconductor Inc |
Semiconductor |
18 |
JAN2N1711S D# JAN2N1711S |
CRP-RAYTHEON |
Semiconductor |
43 |
JAN2N1711 D# JAN2N1711 |
Teledyne Relays |
Semiconductor |
9 |
JTX2N1711 D# JTX2N1711 |
N/A |
Inventory R |
4 |
Part Number | Manufacturer | Description | Stock |
2N1711B |
SYNERTE |
OEM/CM ONLY |
79 |
TR2N1711 |
OEM/CM ONLY |
951 | |
2N1711A |
Teledyne Relays |
OEM/CM ONLY |
1687 |
2N1711L |
RAY74 |
OEM/CM ONLY |
1196 |
2N1711 DIE |
TE Connectivity |
OEM/CM ONLY |
2116 |
2N1711 LEAD FREE |
Central Semiconductor Corp |
OEM/CM ONLY |
1537 |
2N1711FRD |
OEM/CM ONLY |
1542 | |
2N1711 PBFREE |
Central Semiconductor Corp |
OEM/CM ONLY |
118 |
2N1711LL |
THOMSON 7224 |
OEM/CM ONLY |
67 |
JAN2N1711L |
Texas Instruments |
OEM/CM ONLY |
327 |
2N1711AT/DSI |
Discrete Semiconductor Industries |
OEM/CM ONLY |
101 |
JTX2N1711 |
Raytheon |
OEM/CM ONLY |
1700 |
J2N1711 |
Transitron Electronic Corp |
OEM/CM ONLY |
2285 |
2N1711J/JAN |
Teledyne Relays |
OEM/CM ONLY |
296 |
SMT2N1711 |
STMicroelectronics |
OEM/CM ONLY |
369 |
Part Number | Manufacturer | Description | Stock |
2N1711S |
Toshiba America Electronic Components |
IN stock Immediate delivery |
243 |
2N1711 |
Fairchild Semiconductor Corporation |
IN stock Immediate delivery |
1390 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 2028002361 |
Solid State Devices Inc (SSDI) |
2N1711 SOLID STATE Transistor |
20 |
Part Number | Manufacturer | Description | Stock |
2N1711S |
N |
shipping today |
17 |
2N1711 |
LF |
shipping today |
423 |
Part Number | Manufacturer | Description | Stock |
JAN2N1711S D# 35314873 |
Microsemi Corporation |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Bag RoHS: Not Compliant
|
0 |
JANTX2N1711S D# 35273700 |
Microsemi Corporation |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Bag RoHS: Not Compliant
|
0 |
JAN2N1711 D# 35312966 |
Microsemi Corporation |
Trans GP BJT NPN 30V 0.5A 800mW 3-Pin TO-5 Tray RoHS: Not Compliant
|
0 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
U/K |
RFQ |
11597 |
JAN2N1711 |
Texas Instruments |
RFQ |
4546 |
JANTX2N1711 |
Raytheon |
RFQ |
6931 |
Part Number | Manufacturer | Description | Stock |
2N1711 |
Central Semiconductor Corp |
TRANS NPN 50V 0.5A TO-39 |
3095 |
Part Number | Manufacturer | Description | Stock |
2N1711 D# 1611558 |
SPC Multicomp |
TRANSISTOR RoHS: Compliant
Min Qty: 1
Container: Each
|
10733 |
DIODE SCHOTTKY 20V 5A SMC
CAP SUPER 470MF 5.5V 3-SMD
LED YELLOW CLEAR 0603 SMD
IC EEPROM 2KBIT 2MHZ 8SOIC
IC MCU 8BIT NVSRAM 80QFP
IC OFFLINE CTRLR SMPS OTP 8DIP
MOSFET P-CH 30V 3.6A SOT-23-3
IC TXRX RS485 HALF DUPLEX 8-SOIC
IC OPAMP VFB 160MHZ RRO 14SOIC
DIE CM FLIP-FLOP DUAL D
590WA-CDG
Silicon Labs, OSC PROG CML 1.8V EN/DS 50PPM591FB-BDG
Silicon Labs, OSC PROG LVDS 2.5V EN/DS 25PPMMKP383415140JKI2B0
Vishay BC Components, CAP FILM 0.15UF 5% 1.4KVDC RAD1812J0100473JCT
Knowles Syfer, CAP CER 0.047UF 10V C0G/NP0 18121812Y0160822KXR
Knowles Syfer, CAP CER 8200PF 16V X7R 1812S-80128BLMC-JENT2G
SII Semiconductor Corporation, IC VOLT DETECTOR 2.8V SOT23-5ADG802BRMZ
Analog Devices Inc., IC SWITCH SPST 8MSOPMLH006BGD15A
Honeywell Sensing and Productivity Solutions, SENSOR GAUGE 0-6 BAR3-1437531-7
TE Connectivity AMP Connectors, CONN IC DIP SOCKET 14POSESC35DRTN
Sullins Connector Solutions, CONN EDGE DUAL FMALE 70POS 0.100TT21401-56LQI40T
Cypress Semiconductor Corp, IC MCU TRUETOUCHXC6216D552PR-G
Torex Semiconductor Ltd, 28V INPUT VOLTAGE REGULATOR