800mA Current Limit Switch
Data Sheets OBS (Obsolete)


Information 800mA Current Limit Switch
# of Channels 1
IQ (µA) 350
VIN MIN (V) 2.5
Max Current/Ch (mA) 800
Current Limit (mA) 800
Enable Yes
Enable Logic Active high
Special Features Under voltage lockout (UVLO), Short circuit protection, Thermal shutdown protection
Temperature Range (°C) -40 to 85
Package SOT23-6
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The SP619 is a low RDS(ON) high current switch designed with precision current limiting to protect connected devices from damage due to a short circuit condition or against current surges that may cause the supply voltages to fall out of regulation. This switch is functional over an input voltage range of 2.5V to 7V, but is targeted at 5V applications. The SP619 is also protected from thermal overload which limits power dissipation. In shutdown mode, the supply current drops to 2µA.

  • Max series resistance 377 mOhm
  • Low leakage current 2uA
  • Available in small SOT23-6 package
  • Drop-in replacement to National Semiconductor's LM619
  • ESD specifications: ±2kV human body model

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets SP619 High Current Power Switch M September 2017 361 KB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
Product Brochures Power Management Brochure October 2020 2.4 MB
Symbols & Footprints SP619EK-L/TRR3 CAD File (.bxl) September 2018 80.1 KB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
SP619EK-L/TRR3 N Y Y Y Y L1 / 260ᵒC SOT-23-6

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement PDN
SP619EK-L SOT-23-6 -40 85 OBS SP619EK-L/TR
SP619EK-L-ES SOT-23-6 -40 85 OBS
SP619EK-L/TR SOT-23-6 -40 85 OBS SP619EK-L/TRR3
SP619EK-L/TRR3 SOT-23-6 -40 85 OBS XRP2525IDTR-1-F
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Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.


Pkg Code Details Quantities Dimensions PDF
  • JEDEC Reference: MO-178
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 190ºC/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 180 x 8 x 4
  • Tape & Reel Unit Orientation: Quadrant 2
  • Dimensions: mm
  • Length: 2.90
  • Width: 1.60
  • Thickness: 1.45
  • Lead Pitch: 0.95


Distribution Date Description File
10/07/2021 Product Discontinuation Notice - Addendum (See PDN for details)
01/12/2021 Product Discontinuation Notice
02/16/2018 Standard tape and reel quantity will change from 2500 pieces to 3000 pieces for SOT23-3L/5L/6L. Addendum: Remove SOT-89 parts from affected products list.
07/11/2017 Product Discontinuation Notification
04/12/2017 Qualification of alternate assembly subcon, JCET.
01/12/2017 Standard tape and reel quantity will change from 2500 pieces to 3000 pieces for SOT23-3L/5L/6L.
07/26/2016 Product discontinuation notification. Discontinued.
07/30/2013 Addition of an alternate qualified assembly supplier, Carsem (Malaysia) for SOT23 package using copper wire bonding. Material Change.
04/07/2008 Datasheet Change. SP619 has been recharacterizated.

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