Register or Sign In

FR154G price and stock

FR154G Details
My Preferred Distributors (0) Authorized (0) Independent (0) Industrial Supplies / MRO (0)
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 ↑

DigiKey ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G DISTI # 1801-FR154GCT-ND
Taiwan Semiconductor DIODE GEN PURP 400V 1.5A DO204AC Min Qty: 1 Lead time: 8 Weeks Container: Cut Tape (CT), Tape & Reel (TR) FR154G Part Details 7000
In Stock
  • 175000 $0.0471
  • 87500 $0.0478
  • 24500 $0.0577
  • 10500 $0.0588
  • 7000 $0.0680
  • 3500 $0.0711
  • 1000 $0.0846
  • 500 $0.1140
  • 100 $0.1397
  • 10 $0.2770
  • 1 $0.4000
$0.0471 / $0.4000 Buy Now FR154G Part Details
FR154GH DISTI # 1801-FR154GHCT-ND
Taiwan Semiconductor DIODE GEN PURP 400V 1.5A DO204AC Min Qty: 1 Lead time: 8 Weeks Container: Cut Tape (CT), Tape & Reel (TR) FR154GH Part Details 7000
In Stock
  • 175000 $0.0471
  • 87500 $0.0478
  • 24500 $0.0577
  • 10500 $0.0588
  • 7000 $0.0680
  • 3500 $0.0711
  • 1000 $0.0846
  • 500 $0.1140
  • 100 $0.1397
  • 10 $0.2770
  • 1 $0.4000
$0.0471 / $0.4000 Buy Now FR154GH Part Details
FR154G DISTI # 1655-FR154GTB-ND
SMC Diode Solutions DIODE GEN PURP 400V 1.5A DO15 Min Qty: 3000 Lead time: 8 Weeks Container: Tape & Box (TB) FR154G Part Details Temporarily Out of Stock
  • 150000 $0.0344
  • 75000 $0.0397
  • 30000 $0.0442
  • 9000 $0.0450
  • 6000 $0.0542
  • 3000 $0.0585
$0.0344 / $0.0585 Buy Now FR154G Part Details
FR154GHA0G DISTI # FR154GHA0G-ND
Taiwan Semiconductor DIODE GEN PURP 400V 1.5A DO204AC Lead time: 15 Weeks Container: Tape & Box (TB) FR154GHA0G Part Details Temporarily Out of Stock   Buy Now FR154GHA0G Part Details
FR154GP-TP DISTI # FR154GP-TP-ND
Micro Commercial Components DIODE GEN PURP 400V 1.5A DO15 Min Qty: 4000 Lead time: 14 Weeks Container: Tape & Reel (TR) FR154GP-TP Part Details Temporarily Out of Stock
  • 200000 $0.0341
  • 100000 $0.0349
  • 28000 $0.0439
  • 12000 $0.0446
  • 8000 $0.0538
  • 4000 $0.0580
$0.0341 / $0.0580 Buy Now FR154GP-TP Part Details
FR154G-T DISTI # 1801-FR154G-TTR-ND
Taiwan Semiconductor 150NS, 1.5A, 400V, FAST RECOVERY Min Qty: 3500 Lead time: 11 Weeks Container: Tape & Reel (TR) FR154G-T Part Details Temporarily Out of Stock
  • 175000 $0.0328
  • 87500 $0.0379
  • 24500 $0.0404
  • 10500 $0.0429
  • 7000 $0.0505
  • 3500 $0.0581
$0.0328 / $0.0581 Buy Now FR154G-T Part Details
FR154GHB0G DISTI # FR154GHB0G-ND
Taiwan Semiconductor DIODE GEN PURP 400V 1.5A DO204AC Lead time: 15 Weeks Container: Bulk FR154GHB0G Part Details Temporarily Out of Stock   Buy Now FR154GHB0G Part Details
FR154G B0G DISTI # FR154GB0G-ND
Taiwan Semiconductor DIODE GEN PURP 400V 1.5A DO204AC Lead time: 15 Weeks Container: Bulk FR154G B0G Part Details Temporarily Out of Stock   Buy Now FR154G B0G Part Details
FR154G A0G DISTI # FR154GA0G-ND
Taiwan Semiconductor DIODE GEN PURP 400V 1.5A DO204AC Lead time: 8 Weeks Container: Tape & Box (TB) FR154G A0G Part Details Temporarily Out of Stock   Buy Now FR154G A0G Part Details
FR154GP-AP DISTI # FR154GP-AP-ND
Micro Commercial Components DIODE GEN PURP 400V 1.5A DO15 Lead time: 14 Weeks Container: Tape & Box (TB) FR154GP-AP Part Details Temporarily Out of Stock   Buy Now FR154GP-AP Part Details

View all 'FR154G' results from DigiKey

Top of Page ↑

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G DISTI # FR154G
Surge Components Inc Glass Passivated Fast Recovery Rectifier 1.5A 400V 2-Pin DO-204AC - Tape and Reel (Alt: FR154G) RoHS: Not Compliant Min Qty: 4000 Package Multiple: 4000 Container: Reel FR154G Part Details 0
  • 4000 $0.0432
$0.0432 Buy Now FR154G Part Details
FR154G DISTI # FR154G
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC T/R - Tape and Reel (Alt: FR154G) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154G Part Details 0
  • 70000 $0.0459
  • 35000 $0.0466
  • 21000 $0.0473
  • 14000 $0.0488
  • 7000 $0.0510
$0.0459 / $0.0510 Buy Now FR154G Part Details
FR154GH DISTI # FR154GH
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC T/R - Tape and Reel (Alt: FR154GH) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154GH Part Details 0
  • 70000 $0.0459
  • 35000 $0.0466
  • 21000 $0.0473
  • 14000 $0.0488
  • 7000 $0.0510
$0.0459 / $0.0510 Buy Now FR154GH Part Details
FR154G-T DISTI # FR154G-T
Taiwan Semiconductor 150ns, 1.5A, 400V, Fast Recovery Rectifier - Tape and Reel (Alt: FR154G-T) RoHS: Compliant Min Qty: 3500 Package Multiple: 3500 Container: Reel FR154G-T Part Details 0
  • 28000 $0.0330
  • 21000 $0.0340
  • 14000 $0.0345
  • 7000 $0.0350
  • 3500 $0.0360
$0.0330 / $0.0360 Buy Now FR154G-T Part Details
FR154G R0 DISTI # FR154G R0
Taiwan Semiconductor - Tape and Reel (Alt: FR154G R0) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154G R0 Part Details 0   RFQ FR154G R0 Part Details
FR154G A0G DISTI # FR154G A0G
Taiwan Semiconductor 150ns, 1.5A, 400V, Fast Recovery Rectifier - Tape and Reel (Alt: FR154G A0G) RoHS: Compliant Min Qty: 6000 Package Multiple: 1500 Container: Reel FR154G A0G Part Details 0
  • 60000 $0.0459
  • 30000 $0.0466
  • 15000 $0.0473
  • 9000 $0.0488
  • 6000 $0.0510
$0.0459 / $0.0510 Buy Now FR154G A0G Part Details
FR154G-T A0G DISTI # FR154G-T A0G
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC Ammo - Tape and Reel (Alt: FR154G-T A0G) RoHS: Compliant Min Qty: 1500 Package Multiple: 1500 Container: Reel FR154G-T A0G Part Details 0
  • 12000 $0.0330
  • 9000 $0.0340
  • 6000 $0.0345
  • 3000 $0.0350
  • 1500 $0.0360
$0.0330 / $0.0360 Buy Now FR154G-T A0G Part Details

View all 'FR154G' results from Avnet Americas

Top of Page ↑

Mouser Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G DISTI # 821-FR154G
Taiwan Semiconductor Rectifiers 150ns, 1.5A, 400V, Fast Recovery Rectifier RoHS: Compliant FR154G Part Details 0
  • 1 $0.3900
  • 10 $0.2770
  • 100 $0.1390
  • 1000 $0.0840
  • 3500 $0.0710
  • 7000 $0.0580
  • 24500 $0.0570
  • 49000 $0.0470
$0.0470 / $0.3900 Order Now FR154G Part Details
FR154G A0G DISTI # 821-FR154GA0G
Taiwan Semiconductor Rectifiers 150ns, 1.5A, 400V, Fast Recovery Rectifier RoHS: Compliant FR154G A0G Part Details 0
  • 1 $0.3900
  • 10 $0.2770
  • 100 $0.1390
  • 1000 $0.0840
  • 1500 $0.0710
  • 9000 $0.0580
  • 24000 $0.0570
  • 49500 $0.0470
$0.0470 / $0.3900 Order Now FR154G A0G Part Details
FR154G-B DISTI # 583-FR154G-B
Rectron Semiconductor Rectifiers 1.5A 400V 150ns.GP RoHS: Compliant FR154G-B Part Details 0
  • 3500 $0.0970
  • 10000 $0.0890
$0.0890 / $0.0970 Order Now FR154G-B Part Details
FR154G-T DISTI # 583-FR154G-T
Rectron Semiconductor Rectifiers DO-15 1.5A 400V 150n s.GP RoHS: Compliant FR154G-T Part Details 0
  • 4000 $0.0820
  • 8000 $0.0820
  • 24000 $0.0780
  • 48000 $0.0740
  • 100000 $0.0690
$0.0690 / $0.0820 Order Now FR154G-T Part Details
FR154G-T A0G DISTI # 821-FR154G-TA0G
Taiwan Semiconductor Rectifiers 150ns, 1.5A, 400V, Fast Recovery Rectifier RoHS: Compliant FR154G-T A0G Part Details 0
  • 1 $0.3200
  • 10 $0.2270
  • 100 $0.1110
  • 1000 $0.0640
  • 1500 $0.0550
  • 9000 $0.0420
  • 49500 $0.0370
  • 99000 $0.0320
$0.0320 / $0.3200 Order Now FR154G-T A0G Part Details
FR154GH DISTI # 821-FR154GH
Taiwan Semiconductor Rectifiers 150ns, 1.5A, 400V, Fast Recovery Rectifier RoHS: Compliant FR154GH Part Details 0
  • 1 $0.4000
  • 10 $0.2770
  • 100 $0.1140
  • 1000 $0.0840
  • 3500 $0.0710
  • 7000 $0.0580
  • 24500 $0.0570
  • 49000 $0.0470
$0.0470 / $0.4000 Order Now FR154GH Part Details
FR154G-T DISTI # 821-FR154G-T
Taiwan Semiconductor Rectifiers 150ns, 1.5A, 400V, Fast Recovery Rectifier RoHS: Compliant FR154G-T Part Details 0
  • 1 $0.3200
  • 10 $0.2270
  • 100 $0.1110
  • 1000 $0.0640
  • 3500 $0.0550
  • 7000 $0.0420
  • 49000 $0.0370
  • 98000 $0.0320
$0.0320 / $0.3200 Order Now FR154G-T Part Details
FR154GP-TP DISTI # 833-FR154GP-TP
Micro Commercial Components Rectifiers 1.5A FAST RECOVERY RECTIFIER RoHS: Compliant FR154GP-TP Part Details 0
  • 1 $0.3400
  • 10 $0.2370
  • 100 $0.1160
  • 1000 $0.0670
  • 4000 $0.0560
  • 8000 $0.0430
  • 48000 $0.0390
  • 100000 $0.0340
$0.0340 / $0.3400 Order Now FR154GP-TP Part Details

View all 'FR154G' results from Mouser Electronics

Top of Page ↑

Future Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G
Surge Components Inc   RoHS: Compliant pbFree: Yes Min Qty: 12000 Package Multiple: 4000 FR154G Part Details 0
  • 12000 $0.0343
$0.0343 Buy Now FR154G Part Details
FR154G
Taiwan Semiconductor   RoHS: Compliant pbFree: Yes Min Qty: 7000 Package Multiple: 3500 FR154G Part Details 0
  • 7000 $0.0560
$0.0560 Buy Now FR154G Part Details
Top of Page ↑

Onlinecomponents.com ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G
Rectron Semiconductor   RoHS: Compliant FR154G Part Details 0
  • 504000 $0.0353
  • 256000 $0.0359
  • 152000 $0.0364
  • 104000 $0.0370
  • 56000 $0.0380
  • 32000 $0.0386
  • 16000 $0.0410
  • 8000 $0.0546
$0.0353 / $0.0546 Buy Now FR154G Part Details
FR154G-T
Rectron Semiconductor   RoHS: Compliant FR154G-T Part Details 0
  • 504000 $0.0353
  • 256000 $0.0359
  • 152000 $0.0364
  • 104000 $0.0370
  • 56000 $0.0380
  • 32000 $0.0386
  • 16000 $0.0410
  • 8000 $0.0546
$0.0353 / $0.0546 Buy Now FR154G-T Part Details
Top of Page ↑

Bristol Electronics  

Part # Manufacturer Description Stock Price Price Range Buy
FR154G-T
Rectron Semiconductor   FR154G-T Part Details 4000   RFQ FR154G-T Part Details
FR154G-T-79
Rectron Semiconductor   FR154G-T-79 Part Details 3000   RFQ FR154G-T-79 Part Details
Top of Page ↑

Quest Components  

Part # Manufacturer Description Stock Price Price Range Buy
FR154G-T
Rectron Semiconductor   FR154G-T Part Details 3200
  • 497 $0.0672
  • 57 $0.1008
  • 1 $0.2240
$0.0672 / $0.2240 Buy Now FR154G-T Part Details
Top of Page ↑

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G DISTI # FR154G
Surge Components Inc Glass Passivated Fast Recovery Rectifier 1.5A 400V 2-Pin DO-204AC - Tape and Reel (Alt: FR154G) RoHS: Not Compliant Min Qty: 4000 Package Multiple: 4000 Container: Reel FR154G Part Details 0
  • 4000 $0.0432
$0.0432 Buy Now FR154G Part Details
FR154G DISTI # FR154G
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC T/R - Tape and Reel (Alt: FR154G) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154G Part Details 0
  • 70000 $0.0459
  • 35000 $0.0466
  • 21000 $0.0473
  • 14000 $0.0488
  • 7000 $0.0510
$0.0459 / $0.0510 Buy Now FR154G Part Details
FR154GH DISTI # FR154GH
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC T/R - Tape and Reel (Alt: FR154GH) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154GH Part Details 0
  • 70000 $0.0459
  • 35000 $0.0466
  • 21000 $0.0473
  • 14000 $0.0488
  • 7000 $0.0510
$0.0459 / $0.0510 Buy Now FR154GH Part Details
FR154G-T DISTI # FR154G-T
Taiwan Semiconductor 150ns, 1.5A, 400V, Fast Recovery Rectifier - Tape and Reel (Alt: FR154G-T) RoHS: Compliant Min Qty: 3500 Package Multiple: 3500 Container: Reel FR154G-T Part Details 0
  • 28000 $0.0330
  • 21000 $0.0340
  • 14000 $0.0345
  • 7000 $0.0350
  • 3500 $0.0360
$0.0330 / $0.0360 Buy Now FR154G-T Part Details
FR154G R0 DISTI # FR154G R0
Taiwan Semiconductor - Tape and Reel (Alt: FR154G R0) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154G R0 Part Details 0   RFQ FR154G R0 Part Details
FR154G A0G DISTI # FR154G A0G
Taiwan Semiconductor 150ns, 1.5A, 400V, Fast Recovery Rectifier - Tape and Reel (Alt: FR154G A0G) RoHS: Compliant Min Qty: 6000 Package Multiple: 1500 Container: Reel FR154G A0G Part Details 0
  • 60000 $0.0459
  • 30000 $0.0466
  • 15000 $0.0473
  • 9000 $0.0488
  • 6000 $0.0510
$0.0459 / $0.0510 Buy Now FR154G A0G Part Details
FR154G-T A0G DISTI # FR154G-T A0G
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC Ammo - Tape and Reel (Alt: FR154G-T A0G) RoHS: Compliant Min Qty: 1500 Package Multiple: 1500 Container: Reel FR154G-T A0G Part Details 0
  • 12000 $0.0330
  • 9000 $0.0340
  • 6000 $0.0345
  • 3000 $0.0350
  • 1500 $0.0360
$0.0330 / $0.0360 Buy Now FR154G-T A0G Part Details

View all 'FR154G' results from Avnet Americas

Top of Page ↑

TME ECIA Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G DISTI # FR154G-YAN
Yangzhou Yangjie Electronics Co Ltd Diode: rectifying, THT, 400V, 1.5A, tape, Ifsm: 50A, DO15, Ufmax: 1.3V Min Qty: 25 FR154G Part Details 1600
  • 12000 $0.0241
  • 3000 $0.0258
  • 500 $0.0287
  • 100 $0.0325
  • 25 $0.0361
$0.0241 / $0.0361 Buy Now FR154G Part Details
FR154GTA DISTI # FR154GTA-SMC
SMC Diode Solutions Diode: rectifying, THT, 400V, 1.5A, Ammo Pack, DO15, Ufmax: 1.3V Min Qty: 10 FR154GTA Part Details 0
  • 3000 $0.0408
  • 1000 $0.0454
  • 250 $0.0514
  • 50 $0.0571
  • 10 $0.0821
$0.0408 / $0.0821 RFQ FR154GTA Part Details
Top of Page ↑

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
FR154G DISTI # FR154G
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC T/R - Tape and Reel (Alt: FR154G) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154G Part Details 0
  • 70000 $0.0459
  • 35000 $0.0466
  • 21000 $0.0473
  • 14000 $0.0488
  • 7000 $0.0510
$0.0459 / $0.0510 Buy Now FR154G Part Details
FR154G DISTI # FR154G
Surge Components Inc Glass Passivated Fast Recovery Rectifier 1.5A 400V 2-Pin DO-204AC - Tape and Reel (Alt: FR154G) RoHS: Not Compliant Min Qty: 4000 Package Multiple: 4000 Container: Reel FR154G Part Details 0
  • 4000 $0.0432
$0.0432 Buy Now FR154G Part Details
FR154GH DISTI # FR154GH
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC T/R - Tape and Reel (Alt: FR154GH) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154GH Part Details 0
  • 70000 $0.0459
  • 35000 $0.0466
  • 21000 $0.0473
  • 14000 $0.0488
  • 7000 $0.0510
$0.0459 / $0.0510 Buy Now FR154GH Part Details
FR154G-T DISTI # FR154G-T
Taiwan Semiconductor 150ns, 1.5A, 400V, Fast Recovery Rectifier - Tape and Reel (Alt: FR154G-T) RoHS: Compliant Min Qty: 3500 Package Multiple: 3500 Container: Reel FR154G-T Part Details 0
  • 28000 $0.0330
  • 21000 $0.0340
  • 14000 $0.0345
  • 7000 $0.0350
  • 3500 $0.0360
$0.0330 / $0.0360 Buy Now FR154G-T Part Details
FR154G R0 DISTI # FR154G R0
Taiwan Semiconductor - Tape and Reel (Alt: FR154G R0) RoHS: Compliant Min Qty: 7000 Package Multiple: 3500 Container: Reel FR154G R0 Part Details 0   RFQ FR154G R0 Part Details
FR154G A0G DISTI # FR154G A0G
Taiwan Semiconductor 150ns, 1.5A, 400V, Fast Recovery Rectifier - Tape and Reel (Alt: FR154G A0G) RoHS: Compliant Min Qty: 6000 Package Multiple: 1500 Container: Reel FR154G A0G Part Details 0
  • 60000 $0.0459
  • 30000 $0.0466
  • 15000 $0.0473
  • 9000 $0.0488
  • 6000 $0.0510
$0.0459 / $0.0510 Buy Now FR154G A0G Part Details
FR154G-T A0G DISTI # FR154G-T A0G
Taiwan Semiconductor Diode Fast Recovery Rectifier 400V 1.5A 2-Pin DO-204AC Ammo - Tape and Reel (Alt: FR154G-T A0G) RoHS: Compliant Min Qty: 1500 Package Multiple: 1500 Container: Reel FR154G-T A0G Part Details 0
  • 12000 $0.0330
  • 9000 $0.0340
  • 6000 $0.0345
  • 3000 $0.0350
  • 1500 $0.0360
$0.0330 / $0.0360 Buy Now FR154G-T A0G Part Details

View all 'FR154G' results from Avnet Americas

Associated Part Details

Most Popular Rectifier Diodes

Most Popular Part Numbers