Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    EL5211 Search Results

    EL5211 Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    EL5211TIYEZ-T13 Renesas Electronics Corporation 60MHz Rail-to-Rail Input-Output Operational Amplifier, MSOP-EP, /Reel Visit Renesas Electronics Corporation
    EL5211TILZ-T13 Renesas Electronics Corporation 60MHz Rail-to-Rail Input-Output Operational Amplifier, DFN, /Reel Visit Renesas Electronics Corporation
    EL5211IYEZ Renesas Electronics Corporation 60MHz Rail-to-Rail Input-Output Op Amps, MSOP-EP, /Tube Visit Renesas Electronics Corporation
    EL5211IYEZ-T7 Renesas Electronics Corporation 60MHz Rail-to-Rail Input-Output Op Amps, MSOP-EP, /Reel Visit Renesas Electronics Corporation
    EL5211TIYEZ Renesas Electronics Corporation 60MHz Rail-to-Rail Input-Output Operational Amplifier, MSOP-EP, /Tube Visit Renesas Electronics Corporation
    SF Impression Pixel

    EL5211 Price and Stock

    Renesas Electronics Corporation EL5211IYE

    IC OPAMP VFB 2 CIRCUIT 8HMSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey EL5211IYE Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Avnet Americas EL5211IYE Tube 4 Weeks 257
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Chip1Stop EL5211IYE 200
    • 1 $9.01
    • 10 $9.01
    • 100 $5.33
    • 1000 $5.33
    • 10000 $5.33
    		Buy Now

    Renesas Electronics Corporation EL5211IYEZ

    IC OPAMP VFB 2 CIRCUIT 8HMSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey EL5211IYEZ Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Chip1Stop EL5211IYEZ 356
    • 1 $4.12
    • 10 $4.12
    • 100 $1.85
    • 1000 $1.85
    • 10000 $1.85
    		Buy Now

    Renesas Electronics Corporation EL5211AIYEZ

    IC OPAMP VFB 2 CIRCUIT 8HMSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey EL5211AIYEZ Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Avnet Americas EL5211AIYEZ Tube 4 Weeks 72
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    Renesas Electronics Corporation EL5211IYE-T7

    IC OPAMP VFB 2 CIRCUIT 8HMSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey EL5211IYE-T7 Reel
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now

    Renesas Electronics Corporation EL5211TIYEZ-T7

    IC OPAMP VFB 2 CIRCUIT 8HMSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey EL5211TIYEZ-T7 Reel 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.51785
    		Buy Now
    Find more EL5211 price and stock on Findchips.com

    EL5211 Datasheets (42)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    EL5211 Intersil Original PDF
    EL5211A Intersil 60MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211AIYEZ Intersil 60MHz Rail-to-Rail Input-Output Op Amp; Temperature Range: -40°C to 85°C; Package: 8-HMSOP Original PDF
    EL5211AIYEZ Intersil 60MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211AIYEZ-T13 Intersil 60MHz Rail-to-Rail Input-Output Op Amp; Temperature Range: -40°C to 85°C; Package: 8-HMSOP T&R Original PDF
    EL5211AIYEZ-T13 Intersil 60MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211AIYEZ-T7 Intersil 60MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211AIYEZ-T7 Intersil 60MHz Rail-to-Rail Input-Output Op Amp; Temperature Range: -40°C to 85°C; Package: 8-HMSOP T&R Original PDF
    EL5211IY Intersil 60 MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211IY Intersil 600MHz rail-to-rail input-output op amplifier . Original PDF
    EL5211IY Intersil 60MHz Rail-to-Rail Input-Output Op Amps; Temperature Range: -40°C to 85°C; Package: 8-MSOP Original PDF
    EL5211IYE Intersil 60 MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211IYE Intersil 600MHz rail-to-rail input-output op amplifier . Original PDF
    EL5211IYE Intersil 60MHz Rail-to-Rail Input-Output Op Amps; Temperature Range: -40°C to 85°C; Package: 8-HMSOP Original PDF
    EL5211IYE-T13 Intersil 60 MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211IYE-T13 Intersil 600MHz rail-to-rail input-output op amplifier . Original PDF
    EL5211IYE-T13 Intersil 60MHz Rail-to-Rail Input-Output Op Amps; Temperature Range: -40°C to 85°C; Package: 8-HMSOP T&R Original PDF
    EL5211IYE-T7 Intersil 60 MHz Rail-to-Rail Input-Output Op Amp Original PDF
    EL5211IYE-T7 Intersil 60MHz Rail-to-Rail Input-Output Op Amps; Temperature Range: -40°C to 85°C; Package: 8-HMSOP T&R Original PDF
    EL5211IYE-T7 Intersil 600MHz rail-to-rail input-output op amplifier . Original PDF

    EL5211 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    BBLAA

    Abstract: op closed-loop 60MHZ EL5211A EL5211AIYEZ EL5211AIYEZ-T13 EL5211AIYEZ-T7
    Text: EL5211A Data Sheet April 24, 2007 60MHz Rail-to-Rail Input-Output Op Amp Features The EL5211A is a low power, high voltage, rail-to-rail inputoutput amplifier containing two amplifiers. Operating on supplies ranging from 5V to 15V, while consuming only


    Original     		PDF EL5211A 60MHz EL5211A 60MHz FN6143 BBLAA op closed-loop 60MHZ EL5211AIYEZ EL5211AIYEZ-T13 EL5211AIYEZ-T7

    EL5111

    Abstract: EL5111IWT-T7 EL5111IYE EL5111IYE-T13 EL5111IYE-T7 EL5211 EL5211IY EL5411
    Text: EL5111, EL5211, EL5411 Data Sheet PRELIMINARY May 14, 2003 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 60MHz EL5111 EL5211 EL5411 EL5111 EL5111IWT-T7 EL5111IYE EL5111IYE-T13 EL5111IYE-T7 EL5211IY

    5411irez

    Abstract: BAATA 5411IRE marking 345C jedec htssop14 EL5111 EL5111IWT-T7 EL5111IWT-T7A EL5211 EL5411
    Text: EL5111, EL5211, EL5411 Data Sheet May 7, 2007 FN7119.7 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 FN7119 60MHz EL5411 EL5111 EL5211 5411irez BAATA 5411IRE marking 345C jedec htssop14 EL5111 EL5111IWT-T7 EL5111IWT-T7A

    jedec htssop14

    Abstract: EL5111 EL5111IWT-T7 EL5211 EL5411 EL5211IYEZ-T13 MDP0049
    Text: EL5111, EL5211, EL5411 Data Sheet June 15, 2004 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 60MHz EL5111 EL5211 EL5411 jedec htssop14 EL5111 EL5111IWT-T7 EL5211IYEZ-T13 MDP0049

    EL5211A

    Abstract: EL5211AIYEZ EL5211AIYEZ-T13 EL5211AIYEZ-T7 TB347
    Text: EL5211A Data Sheet July 23, 2009 60MHz Rail-to-Rail Input-Output Op Amp Features The EL5211A is a low power, high voltage, rail-to-rail input-output amplifier. The EL5211A contains two amplifiers. Operating on nominal supplies ranging from 5V to 15V while


    Original     		PDF EL5211A 60MHz EL5211A 60MHz EL521ription EL5211AIYEZ EL5211AIYEZ-T13 EL5211AIYEZ-T7 TB347

    EL5111

    Abstract: EL5111IWT-T7 EL5211 EL5411 MDP0049
    Text: EL5111, EL5211, EL5411 Data Sheet October 15, 2004 FN7119.3 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 FN7119 60MHz EL5411 EL5111 EL5211 EL5111 EL5111IWT-T7 MDP0049

    5411irez

    Abstract: 5411IRE baata 5411 EL5111 EL5111IWT-T7 EL5111IWT-T7A EL5211 EL5411 HTSSOP14
    Text: EL5111, EL5211, EL5411 Data Sheet January 10, 2007 FN7119.5 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 FN7119 60MHz EL5411 EL5111 EL5211 5411irez 5411IRE baata 5411 EL5111 EL5111IWT-T7 EL5111IWT-T7A HTSSOP14

    CL8560

    Abstract: EL5211T EL5211TILZ-T13 EL5211TIYEZ EL5211TIYEZ-T13 EL5211TIYEZ-T7 TB347 HMSOP-10
    Text: EL5211T Features The EL5211T is a high voltage rail-to-rail input-output amplifier with low power consumption. The EL5211T contains two amplifiers. Each amplifier exhibits beyond the rail input capability, rail-to-rail output capability and is unity gain stable.


    Original     		PDF EL5211T EL5211T 60MHz 300mA 00V/s, FN6893 CL8560 EL5211TILZ-T13 EL5211TIYEZ EL5211TIYEZ-T13 EL5211TIYEZ-T7 TB347 HMSOP-10

    Untitled

    Abstract: No abstract text available
    Text: EL5111, EL5211, EL5411 Data Sheet May 7, 2007 FN7119.7 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 FN7119 60MHz EL5411 EL5111 EL5211

    EL5111

    Abstract: EL5111IWT-T7 EL5211 EL5411
    Text: EL5111, EL5211, EL5411 Data Sheet October 29, 2004 FN7119.4 60MHz Rail-to-Rail Input-Output Op Amps Features The EL5111, EL5211, and EL5411 are low power, high voltage rail-to-rail input-output amplifiers. The EL5111 represents a single amplifier, the EL5211 contains two


    Original     		PDF EL5111, EL5211, EL5411 FN7119 60MHz EL5411 EL5111 EL5211 EL5111 EL5111IWT-T7

    EL5211A

    Abstract: EL5211AIYEZ EL5211AIYEZ-T13 EL5211AIYEZ-T7
    Text: EL5211A Data Sheet June 15, 2005 60MHz Rail-to-Rail Input-Output Op Amp Features The EL5211A is a low power, high voltage, rail-to-rail inputoutput amplifier containing two amplifiers. Operating on supplies ranging from 5V to 15V, while consuming only 2.5mA per amplifier, the EL5211A has a bandwidth of


    Original     		PDF EL5211A 60MHz EL5211A 60MHz FN6143 EL5211AIYEZ EL5211AIYEZ-T13 EL5211AIYEZ-T7

    Untitled

    Abstract: No abstract text available
    Text: EL5211T Features The EL5211T is a high voltage rail-to-rail input-output amplifier with low power consumption. The EL5211T contains two amplifiers. Each amplifier exhibits beyond the rail input capability, rail-to-rail output capability and is unity gain stable.


    Original     		PDF EL5211T EL5211T 60MHz 300mA FN6893

    schematic diagram 180v dc motor speed controller

    Abstract: schematic diagram 48v dc motor speed controller 300khz 600V mosfet driver IC e bike motor controller CCTV SCHEMATIC camera board e-bike tv lcd Schematic Power Supply ISL2111 ISL24822 pwm e-bike
    Text: Design Tools/Applications 18 2009 P RODUCT SELECTION GUIDE Design Tools Applications Support on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2 iSim Online Design Simulation Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2


    Original     		PDF ISL24017 X9C102 ISL24011 X9C103 X9C104 ISL24010 X93154 EL5000A X93155 1-888-INTERSIL schematic diagram 180v dc motor speed controller schematic diagram 48v dc motor speed controller 300khz 600V mosfet driver IC e bike motor controller CCTV SCHEMATIC camera board e-bike tv lcd Schematic Power Supply ISL2111 ISL24822 pwm e-bike

    ISL1571

    Abstract: CA3102 HA SOT-23 ISL1557 CA3260 EL2125 EL5104 ISL1557A ISL28470 ISL55016
    Text: Amplifiers/Buffers 1 1 2009 P RODUCT S ELECTION GUIDE Fully Differential Wideband Amplifier pg. 1-24 By Bandwidth (pg. 1-2) High Output Current (DSL Line Drivers) (pg. 1-25) By Input Offset Voltage (pg. 1-9) Instrumentation Amplifiers (pg. 1-25) By Supply


    Original     		PDF EL5524 EL5224 EL5624 EL5324 EL5724 EL5424 EL5824 1-888-INTERSIL ISL1571 CA3102 HA SOT-23 ISL1557 CA3260 EL2125 EL5104 ISL1557A ISL28470 ISL55016

    schematic diagram atx Power supply 500w

    Abstract: pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 Digital Signal Processors, iCoupler , iMEMS® and iSensor . . . . . 805, 2707, 2768-2769 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-568 RF Connectors . . . . . . . . . . . . . . . . . . . . . . Pages 454-455


    Original     		PDF P462-ND P463-ND LNG295LFCP2U LNG395MFTP5U US2011) schematic diagram atx Power supply 500w pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS

    ISL24007

    Abstract: isl24822 ISL24005 ISL24813 isl248 ISL24821 ISL97656 EL7583 EL5120 EL5210
    Text: Display ICs 8 2009 P RODUCT S ELECTION GUIDE Display ICs pg. 8-1 VCOM and Gamma Buffers (pg. 8-2) LCD Display Power (pg. 8-4) Programmable VCOM Amplifiers (pg. 8-2) Ambient Light Sensors (pg. 8-6) OLED Power ICs (pg. 8-7) Level Shifters (pg. 8-8) LCD and LED


    Original     		PDF 1-888-INTERSIL ISL24010 ISL24011 EL5000A ISL24016 ISL24017 ISL24007 isl24822 ISL24005 ISL24813 isl248 ISL24821 ISL97656 EL7583 EL5120 EL5210

    CA3420

    Abstract: 4075N CA3260 CA3260A EL5104 EL5166 EL5167 EL5367 HFA1100 HFA1110
    Text: 2 Amplifiers/Buffers 2006 P RODUCT S ELECTION GUIDE Precision pg. 2-10 Bandwidth >1GHz (pg. 2-2) Amplifiers/ Buffers Instrumentation Amplifiers (pg. 2-18) High Speed (pg. 2-2) 2 Amplifiers/Buffers (pg. 2-1) Comparators (pg. 2-25) Low Power (pg. 2-18)


    Original     		PDF 500MHz 100MHz 10MHz CA3054 CA3083 CA3102 CA3127 HFA3102 1-888-INTERSIL CA3420 4075N CA3260 CA3260A EL5104 EL5166 EL5167 EL5367 HFA1100 HFA1110

    220v AC voltage stabilizer schematic diagram

    Abstract: LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 AD9272 Analog Front End, iMEMS Accelerometers & Gyroscopes . . . . . . 782, 2583 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-528 Acceleration and Pressure Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2585


    Original     		PDF AD9272 P462-ND LNG295LFCP2U P463-ND LNG395MFTP5U 220v AC voltage stabilizer schematic diagram LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx

    voltage buffer 12v

    Abstract: EL7583 op 30MHZ SOT-23 EL7515 EL7516 EL7581 EL7584 10 channel gamma EL5424
    Text: Display Products 3 HIGH PERFORMANCE ANALOG PRODUCT TREES ANALOG Display Products Integrated DC-DC Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 VCOM Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


    Original     		PDF EL5824 EL7513 1-888-INTERSIL voltage buffer 12v EL7583 op 30MHZ SOT-23 EL7515 EL7516 EL7581 EL7584 10 channel gamma EL5424

    ISL1557A

    Abstract: ISL1557 CA3102 EL1528 EL1510 ISL1571 EL1517B ca3140 application circuit CA3140 voltage comparator CA3260
    Text: 1 Amplifiers/Buffers 1 2008 P RODUCT S ELECTION GUIDE Fully Differential Wideband Amplifier pg. 1-28 By Bandwidth (pg. 1-2) High Output Current Amplifiers (pg. 1-28) RF Amplifiers (pg. 1-28) By Input Offset Voltage (pg. 1-11) By Supply Current (pg. 1-19)


    Original     		PDF 500MHz 1-29to EL5524 EL5224 EL5624 EL5324 EL5724 EL5424 EL5824 1-888-INTERSIL ISL1557A ISL1557 CA3102 EL1528 EL1510 ISL1571 EL1517B ca3140 application circuit CA3140 voltage comparator CA3260

    isl24007

    Abstract: ISL24005 ISL24016 ISL24813 ISL24822 isl248 ISL24821 ISL29010 ISL78010 APPLICATION NOTES ISL24008
    Text: Display ICs 8 2008 P RODUCT S ELECTION GUIDE Display ICs pg. 8-1 VCOM and Gamma Buffers (pg. 8-2) Integrated DC/DC Regulators (pg. 8-4) Programmable VCOM Amplifiers (pg. 8-2) Ambient Light Sensors (pg. 8-5) OLED Power ICs (pg. 8-6) Level Shifters (pg. 8-7)


    Original     		PDF 1-888-INTERSIL isl24007 ISL24005 ISL24016 ISL24813 ISL24822 isl248 ISL24821 ISL29010 ISL78010 APPLICATION NOTES ISL24008

    transistor array high frequency

    Abstract: hfa11001 transistor 2620 SOT-23 EL5308 CA3083 receiver EL5611 EL8188 EL8203
    Text: Amplifiers/Buffers 2 A NALOG S IGNAL P ROCESSING Low Power pg. 2-27 Transistor Arrays (pg. 2-41) Bandwidth >1GHz (pg. 2-2) VOS <25µV (pg. 2-15) IS <10µA (pg. 2-27) UHF NPN Only (pg. 2-41) Bandwidth >500MHz (pg. 2-2) VOS <100µV (pg. 2-15) IS <100µA


    Original     		PDF 500MHz 100MHz 10MHz HA-4900 HA-4902 HA-4905 150nA, 200nA, 180ns transistor array high frequency hfa11001 transistor 2620 SOT-23 EL5308 CA3083 receiver EL5611 EL8188 EL8203

    12v DC motor

    Abstract: defibrillator microprocessor HIN238 wifi 5 watt amplifier circuit EL1510 laser barcode reader circuit barcode scanner with microcontroller via rs232 24 bit lvds lcd interface EL5825 digital Glucose meter circuit
    Text: Applications 21 2005 P RODUCT S ELECTION GUIDE Automated External Defibrillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2 Barcode Scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-5


    Original     		PDF X4043 X4045 X5043 X5045 X40410 X40411 X40414 X40415 X40420 X40421 12v DC motor defibrillator microprocessor HIN238 wifi 5 watt amplifier circuit EL1510 laser barcode reader circuit barcode scanner with microcontroller via rs232 24 bit lvds lcd interface EL5825 digital Glucose meter circuit

    ELB21-10

    Abstract: PID control dsPIC servo motor position control EL521-12 EL521-2 EL521-3 EL521-7 EL521-8 EL521-9 EL521-16
    Text: DATATRONICS 5bE D • 2bSm ñB 0G G 0 5 b 3 T ~ 5 / - I e] b SERIES EL521 ECL 10K COMPATIBLE DUA L PULSE GENERATOR MODULES • • • 12 Pin DIP Package • Dual Units w ith Separate Trigger Inputs and Outputs Pulse-Width Stable and Precise • ECL Input and O utput Levels


    OCR Scan     		PDF Sb51ffi5 EL521 EL521â ELB21-10 PID control dsPIC servo motor position control EL521-12 EL521-2 EL521-3 EL521-7 EL521-8 EL521-9 EL521-16