1EB50 price and stock

1EB50 Details
Register or Sign In to sort your Preferred Distributors to the top of the list!

Authorized Distributors

  • Abracon
  • Analog Devices Inc
  • Arrow
  • Avnet Americas
  • Bisco
  • Braemac Americas-Symmetry
  • Coilcraft
  • ComSIT USA
  • Cytech Systems Limited
  • DB Roberts
  • DigiKey
  • Dynamic Solutions
  • ECCO
  • element14
  • Fairview Microwave
  • Farnell
  • FDH Electronics
  • Flip Electronics
  • Future Electronics
  • GLYN
  • Heilind Americas
  • Interstate Connecting
  • L-com US
  • Maritex
  • Master Electronics
  • Microchip Technology
  • Mouser
  • NAC
  • New Advantage
  • Newark
  • NXP
  • Onlinecomponents.com
  • Pasternack Enterprises
  • PEI Genesis
  • Powell Electronics
  • PUI
  • RECOM Power
  • Relay Specialties
  • Richardson RFPD
  • Rochester
  • RS
  • Rutronik
  • Sager
  • Samtec
  • SiTime Corporation
  • STMicroelectronics
  • TE Connectivity
  • Teledyne e2v
  • TME
  • TTI
  • Venkel Ltd.
  • Verical
  • Waytek, Inc.
  • Wuhan P&S

Independent Distributors

  • Ameya
  • Bristol
  • Chip 1 Exchange
  • Chip Stock
  • Chip-Germany GmbH
  • Component Electronics, Inc
  • Futuretech Components
  • Greenchips
  • IBS Electronics
  • LCSC
  • MacroQuest
  • Neutron USA
  • NexGen Digital
  • Quest
  • Sense Electronic
  • Sensible Micro Corp
  • Shengyu Electronics
  • Unikey Electronic
  • Vyrian
  • Win Source Electronics
Show Filters
Select Manufacturer

Update Alert Settings for: 1EB50

Select Manufacturer
Which Manufacturer of 1EB50 would you like to use for your alert(s)?
  • Please alert me when 1EB50 inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for 1EB50 alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
  • Please alert me when the single part price for 1EB50 to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for 1EB50 alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Is at most 256 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for 1EB50.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.
arrow upTOP
Price includes all import duties and tariffs for applicable products

Newark ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
ALC40A181EB500 DISTI # 85AC3819
KEMET Corporation 180.pf 500V |Kemet ALC40A181EB500 RoHS: Not Compliant Min Qty: 72 Package Multiple: 1 Date Code: 0 Container: Bulk ALC40A181EB500 Part Details 0
  • 50 $8.0700
  • 100 $7.1100
  • 250 $6.7700
  • 500 $6.2900
$6.2900 / $8.0700 Buy Now ALC40A181EB500 Part Details

DigiKey ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
1EB50 DISTI # 5006-1EB50-ND
Acopian Power Supplies AC/DC CONVERTER Min Qty: 1 Container: Bulk 1EB50 Part Details 493
Bulk
  • 25 $185.8044
  • 10 $191.5920
  • 5 $197.3800
  • 1 $203.1700
$185.8044 / $203.1700 Buy Now 1EB50 Part Details
1EB50-230 DISTI # 5006-1EB50-230-ND
Acopian Power Supplies AC/DC CONVERTER Min Qty: 1 Container: Bulk 1EB50-230 Part Details 489
Bulk
  • 25 $197.3808
  • 10 $203.1690
  • 5 $208.9560
  • 1 $214.7400
$197.3808 / $214.7400 Buy Now 1EB50-230 Part Details
ALC70E271EB500 DISTI # ALC70E271EB500-ND
KEMET Corporation CAP ALUM 270UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC70E271EB500 Part Details 0
Bulk
  • 216 $5.5054
$5.5054 Buy Now ALC70E271EB500 Part Details
ALF20C181EB500 DISTI # ALF20C181EB500-ND
KEMET Corporation CAP ALUM 180UF 20% 500V PRESS Min Qty: 216 Container: Bulk ALF20C181EB500 Part Details 0
Bulk
  • 216 $5.8793
$5.8793 Buy Now ALF20C181EB500 Part Details
531EB500M500DG DISTI # 531EB500M500DG-ND
Skyworks Solutions Inc XTAL OSC XO 500.5000MHZ LVPECL Min Qty: 50 531EB500M500DG Part Details 0
  • 50 $25.7592
$25.7592 Buy Now 531EB500M500DG Part Details
ALC70D271EB500 DISTI # ALC70D271EB500-ND
KEMET Corporation CAP ALUM 270UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC70D271EB500 Part Details 0
Bulk
  • 216 $5.5054
$5.5054 Buy Now ALC70D271EB500 Part Details
ALC80F221EB500 DISTI # ALC80F221EB500-ND
KEMET Corporation CAP ALUM 220UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC80F221EB500 Part Details 0
Bulk
  • 216 $6.0902
$6.0902 Buy Now ALC80F221EB500 Part Details
ALF70G271EB500 DISTI # 399-ALF70G271EB500-ND
KEMET Corporation CAP ALUM 270UF 20% 500V PRESS Min Qty: 1000 Container: Bulk ALF70G271EB500 Part Details 0
Bulk
  • 1000 $6.7697
$6.7697 Buy Now ALF70G271EB500 Part Details
ALC80A221EB500 DISTI # ALC80A221EB500-ND
KEMET Corporation CAP ALUM 220UF 20% 500V SNAP TH Min Qty: 1008 Container: Bulk ALC80A221EB500 Part Details 0
Bulk
  • 1008 $9.0933
$9.0933 Buy Now ALC80A221EB500 Part Details
ALC70F271EB500 DISTI # ALC70F271EB500-ND
KEMET Corporation CAP ALUM 270UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC70F271EB500 Part Details 0
Bulk
  • 216 $5.5054
$5.5054 Buy Now ALC70F271EB500 Part Details
ALC70C271EB500 DISTI # ALC70C271EB500-ND
KEMET Corporation CAP ALUM 270UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC70C271EB500 Part Details 0
Bulk
  • 216 $5.5054
$5.5054 Buy Now ALC70C271EB500 Part Details
ALC80E221EB500 DISTI # ALC80E221EB500-ND
KEMET Corporation CAP ALUM 220UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC80E221EB500 Part Details 0
Bulk
  • 216 $6.0902
$6.0902 Buy Now ALC80E221EB500 Part Details
ALC70A271EB500 DISTI # ALC70A271EB500-ND
KEMET Corporation CAP ALUM 270UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC70A271EB500 Part Details 0
Bulk
  • 216 $5.5054
$5.5054 Buy Now ALC70A271EB500 Part Details
ALC80D221EB500 DISTI # ALC80D221EB500-ND
KEMET Corporation CAP ALUM 220UF 20% 500V SNAP TH Min Qty: 216 Container: Bulk ALC80D221EB500 Part Details 0
Bulk
  • 216 $6.0902
$6.0902 Buy Now ALC80D221EB500 Part Details
ALF20G181EB500 DISTI # ALF20G181EB500-ND
KEMET Corporation CAP ALUM 180UF 20% 500V PRESS Min Qty: 216 Container: Bulk ALF20G181EB500 Part Details 0
Bulk
  • 216 $6.1203
$6.1203 Buy Now ALF20G181EB500 Part Details

View all '1EB50' results from DigiKey

View all '1EB50' results from DigiKey

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
ALC80A221EB500 DISTI # ALC80A221EB500
KEMET Corporation - Boxed Product (Development Kits) (Alt: ALC80A221EB500) COO: Portugal RoHS: Compliant Min Qty: 1008 Package Multiple: 72 Lead time: 28 Weeks, 0 Days Container: Box ALC80A221EB500 Part Details 0
  • 16128 $8.5464
  • 8064 $8.7655
  • 4032 $8.9962
  • 2016 $9.2393
  • 1008 $9.7673
$8.5464 / $9.7673 Buy Now ALC80A221EB500 Part Details
ALC40A181EB500 DISTI # ALC40A181EB500
KEMET Corporation 180.PF 500V - Boxed Product (Development Kits) (Alt: ALC40A181EB500) COO: Portugal RoHS: Compliant Min Qty: 1008 Package Multiple: 72 Lead time: 27 Weeks, 0 Days Container: Box ALC40A181EB500 Part Details 0
  • 16128 $8.1569
  • 8064 $8.3660
  • 4032 $8.7007
  • 2016 $8.9390
  • 1008 $9.1908
$8.1569 / $9.1908 Buy Now ALC40A181EB500 Part Details
ALC80C221EB500 DISTI # ALC80C221EB500
KEMET Corporation - Boxed Product (Development Kits) (Alt: ALC80C221EB500) COO: Portugal RoHS: Compliant Min Qty: 1008 Package Multiple: 72 Lead time: 28 Weeks, 0 Days Container: Box ALC80C221EB500 Part Details 0
  • 16128 $8.7666
  • 8064 $8.9914
  • 4032 $9.2280
  • 2016 $9.4774
  • 1008 $10.0190
$8.7666 / $10.0190 Buy Now ALC80C221EB500 Part Details

Mouser Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
531EB50M0000DG DISTI # 634-531EB50M0000DG
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB50M0000DG Part Details 0
  • 1 $14.1800
  • 10 $12.2400
  • 25 $11.6300
  • 50 $10.4800
  • 250 $10.2300
  • 500 $9.9700
$9.9700 / $14.1800 Order Now 531EB50M0000DG Part Details
531EB50M0000DG DISTI # 634-531EB50M0000DG
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB50M0000DG Part Details 0
  • 1 $14.1800
  • 10 $12.2400
  • 25 $11.6300
  • 50 $10.4800
  • 250 $10.2300
  • 500 $9.9700
$9.9700 / $14.1800 Order Now 531EB50M0000DG Part Details
531EB500M500DG DISTI # 634-531EB500M500DG
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB500M500DG Part Details 0
  • 50 $25.7500
$25.7500 Order Now 531EB500M500DG Part Details
531EB500M500DG DISTI # 634-531EB500M500DG
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB500M500DG Part Details 0
  • 50 $25.7500
$25.7500 Order Now 531EB500M500DG Part Details
531EB50M0000DGR DISTI # 634-531EB50M0000DGR
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB50M0000DGR Part Details 0
  • 250 $9.5000
$9.5000 Order Now 531EB50M0000DGR Part Details
531EB50M0000DGR DISTI # 634-531EB50M0000DGR
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB50M0000DGR Part Details 0
  • 250 $9.5000
$9.5000 Order Now 531EB50M0000DGR Part Details
531EB500M500DGR DISTI # 634-531EB500M500DGR
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB500M500DGR Part Details 0
  • 250 $25.2600
$25.2600 Order Now 531EB500M500DGR Part Details
531EB500M500DGR DISTI # 634-531EB500M500DGR
Skyworks Solutions Inc Standard Clock Oscillators Differential/single-ended, single frequency XO, OE pin 1, 10-1417 MHz RoHS: Compliant 531EB500M500DGR Part Details 0
  • 250 $25.2600
$25.2600 Order Now 531EB500M500DGR Part Details
ALC80A221EB500 DISTI # 80-ALC80A221EB500
KEMET Corporation Aluminum Electrolytic Capacitors - Snap In 500V 220uF 20% 9000Hrs RoHS: Compliant ALC80A221EB500 Part Details 0
  • 1008 $10.5100
$10.5100 Order Now ALC80A221EB500 Part Details
ALC80A221EB500 DISTI # 80-ALC80A221EB500
KEMET Corporation Aluminum Electrolytic Capacitors - Snap In 500V 220uF 20% 9000Hrs RoHS: Compliant ALC80A221EB500 Part Details 0
  • 1008 $10.5100
$10.5100 Order Now ALC80A221EB500 Part Details
ALC80C221EB500 DISTI # 80-ALC80C221EB500
KEMET Corporation Aluminum Electrolytic Capacitors - Snap In 500V 220uF 20% 9000Hrs RoHS: Compliant ALC80C221EB500 Part Details 0
  • 1008 $10.7800
$10.7800 Order Now ALC80C221EB500 Part Details
ALC80C221EB500 DISTI # 80-ALC80C221EB500
KEMET Corporation Aluminum Electrolytic Capacitors - Snap In 500V 220uF 20% 9000Hrs RoHS: Compliant ALC80C221EB500 Part Details 0
  • 1008 $10.7800
$10.7800 Order Now ALC80C221EB500 Part Details
6AV72601EB501BX6 DISTI # 982-6AV72601EB501BX6
Siemens HMI Displays & Panel PCs SIMATIC IPC677D. 19" Touch 6AV72601EB501BX6 Part Details 0
  • 1 $15,898.8900
$15,898.8900 Order Now 6AV72601EB501BX6 Part Details
6AV72601EB501BX6 DISTI # 982-6AV72601EB501BX6
Siemens HMI Displays & Panel PCs SIMATIC IPC677D. 19" Touch 6AV72601EB501BX6 Part Details 0
  • 1 $15,898.8900
$15,898.8900 Order Now 6AV72601EB501BX6 Part Details

View all '1EB50' results from Mouser Electronics

RS (Formerly Allied Electronics & Automation)

Part # Manufacturer Description Stock Price Price Range Buy
ALC70E271EB500 DISTI # 73254090
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC70,40X30,270UF,500V,20% Min Qty: 1000 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC70E271EB500 Part Details 0
  • 1000 $6.8900
  • 5000 $6.3400
  • 10000 $6.0600
$6.0600 / $6.8900 RFQ ALC70E271EB500 Part Details
ALF20C181EB500 DISTI # 71416308
KEMET Corporation ALUMINUM ELECTROLYTIC PRESS-FIT 85C 500V 180F 40 X 30MM Min Qty: 216 Package Multiple: 1 Container: Bulk ALF20C181EB500 Part Details 0
  • 216 $9.9300
  • 1080 $9.4300
  • 2160 $8.9400
$8.9400 / $9.9300 RFQ ALF20C181EB500 Part Details
ALC70D271EB500 DISTI # 73253951
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC70,40X30,270UF,500V,20% Min Qty: 1000 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC70D271EB500 Part Details 0
  • 1000 $11.1600
  • 5000 $10.6000
  • 10000 $10.0400
$10.0400 / $11.1600 RFQ ALC70D271EB500 Part Details
ALC80F221EB500 DISTI # 73254840
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC80,40X30,220UF,500V,20% Min Qty: 1000 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC80F221EB500 Part Details 0
  • 1000 $12.4600
  • 5000 $11.8400
  • 10000 $11.2200
$11.2200 / $12.4600 RFQ ALC80F221EB500 Part Details
ALC80A221EB500 DISTI # 73254409
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC80,40X30,220UF,500V,20% Min Qty: 1008 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC80A221EB500 Part Details 0
  • 1008 $8.3400
  • 5040 $7.6800
  • 10080 $7.3400
$7.3400 / $8.3400 RFQ ALC80A221EB500 Part Details
ALC70F271EB500 DISTI # 73254226
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC70,40X30,270UF,500V,20% Min Qty: 1000 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC70F271EB500 Part Details 0
  • 1000 $6.8900
  • 5000 $6.3400
  • 10000 $6.0600
$6.0600 / $6.8900 RFQ ALC70F271EB500 Part Details
ALC70C271EB500 DISTI # 73253815
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC70,40X30,270UF,500V,20% Min Qty: 1000 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC70C271EB500 Part Details 0
  • 1000 $6.8900
  • 5000 $6.3400
  • 10000 $6.0600
$6.0600 / $6.8900 RFQ ALC70C271EB500 Part Details
ALC80E221EB500 DISTI # 73254735
KEMET Corporation ALUMINUM ELECTROLYTIC, SNAP-IN, ALC80,40X30,220UF,500V,20% Min Qty: 1000 Package Multiple: 1 Lead time: 34 Weeks, 0 Days Container: Bulk ALC80E221EB500 Part Details 0
  • 1000 $7.7000
  • 5000 $7.0800
  • 10000 $6.7700
$6.7700 / $7.7000 RFQ ALC80E221EB500 Part Details
01EB500EX (COP.) DISTI # 73581370
SKF Cooper COOPER SPLIT BEARING, BORE DIA. 5 IN Min Qty: 1 Package Multiple: 1 Lead time: 1 Weeks, 0 Days Container: Bulk 01EB500EX (COP.) Part Details 0
  • 1 $4,232.5100
$4,232.5100 RFQ 01EB500EX (COP.) Part Details
01EB500GR (COP.) DISTI # 73581371
SKF Cooper COOPER SPLIT BEARING, BORE DIA. 5 IN Min Qty: 1 Package Multiple: 1 Lead time: 1 Weeks, 0 Days Container: Bulk 01EB500GR (COP.) Part Details 0
  • 1 $4,232.5100
$4,232.5100 RFQ 01EB500GR (COP.) Part Details
01EB50MEX (COP.) DISTI # 73581372
SKF Cooper COOPER SPLIT BEARING, BORE DIA. 50 MM Min Qty: 1 Package Multiple: 1 Lead time: 1 Weeks, 0 Days Container: Bulk 01EB50MEX (COP.) Part Details 0
  • 1 $969.8700
$969.8700 RFQ 01EB50MEX (COP.) Part Details
01EB50MGR (COP.) DISTI # 73581373
SKF Cooper COOPER SPLIT BEARING, BORE DIA. 50 MM Min Qty: 1 Package Multiple: 1 Lead time: 1 Weeks, 0 Days Container: Bulk 01EB50MGR (COP.) Part Details 0
  • 1 $969.8700
$969.8700 RFQ 01EB50MGR (COP.) Part Details
JXC918-LEY16D1EB-50 DISTI # 74948412
SMC Corporation of America ETHERNET/IP DC CONTROLLER, JXC SERIES Min Qty: 1 Package Multiple: 1 Lead time: 5 Weeks, 0 Days Container: Bulk JXC918-LEY16D1EB-50 Part Details 0
  • 1 $677.8100
$677.8100 RFQ JXC918-LEY16D1EB-50 Part Details
LESYH8D1EB-50C-R1CE17 DISTI # 75801766
SMC Corporation of America ELECTRIC ACTUATOR, HI PRECISION SLIDE TABLE, LES SERIES Min Qty: 1 Package Multiple: 1 Lead time: 5 Weeks, 0 Days Container: Bulk LESYH8D1EB-50C-R1CE1... Part Details 0
  • 1 $2,171.6100
$2,171.6100 RFQ LESYH8D1EB-50C-R1CE1... Part Details
LEYG16MD1EB-50W-R5C918 DISTI # 76040747
SMC Corporation of America ELECTRIC ACTUATOR, GUIDE ROD TYPE, LEYG SERIES Min Qty: 1 Package Multiple: 1 Lead time: 5 Weeks, 0 Days Container: Bulk LEYG16MD1EB-50W-R5C9... Part Details 0
  • 1 $2,025.0000
$2,025.0000 RFQ LEYG16MD1EB-50W-R5C9... Part Details

View all '1EB50' results from RS

View all '1EB50' results from RS

TME ECIA Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
ALC80A221EB500 DISTI # ALC80A221EB500
KEMET Corporation Capacitor: electrolytic, SNAP-IN, 220uF, 500VDC, Ø40x30mm, ±20% Min Qty: 1008 ALC80A221EB500 Part Details 0
  • 1008 $8.2300
$8.2300 RFQ ALC80A221EB500 Part Details

Richardson RFPD Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
531EB500M500DG DISTI # 531EB500M500DG
Skyworks Solutions Inc Oscillator XO 500.5MHz ±31.5ppm LVPECL 55% 2.5V 6- RoHS: Compliant Min Qty: 50 531EB500M500DG Part Details 0
  • 19 $27.1600
$27.1600 Buy Now 531EB500M500DG Part Details
531EB50M0000DGR DISTI # 531EB50M0000DGR
Skyworks Solutions Inc Oscillator XO 50MHz ±31.5ppm LVPECL 55% 2.5V 6-Pin RoHS: Compliant Min Qty: 250 531EB50M0000DGR Part Details 0
  • 19 $9.8700
$9.8700 Buy Now 531EB50M0000DGR Part Details
531EB50M0000DG DISTI # 531EB50M0000DG
Skyworks Solutions Inc Oscillator XO 50MHz ±31.5ppm LVPECL 55% 2.5V 6-Pin RoHS: Compliant Min Qty: 50 531EB50M0000DG Part Details 0
  • 19 $9.8700
$9.8700 Buy Now 531EB50M0000DG Part Details
531EB500M500DGR DISTI # 531EB500M500DGR
Skyworks Solutions Inc Oscillator XO 500.5MHz ±31.5ppm LVPECL 55% 2.5V 6- RoHS: Compliant Min Qty: 250 531EB500M500DGR Part Details 0
  • 19 $27.1600
$27.1600 Buy Now 531EB500M500DGR Part Details

Associated Part Details

Most Popular Power Supply Modules

Most Popular Part Numbers