Littelfuse Supplier Page

SP03-3.3 Series Silicon Protection Arrays

Low Capacitance TVS Protection for High Speed Data Lines at Digi-Key

The SP03-xB, a new series of broadband protection devices from Littelfuse, provides overvoltage protection for applications such as 10/100/1000 BaseT Ethernet, T3/E3 DS3 interfaces, ADSL2+, and VDSL2+. This new protector combines the TVS diode element with a diode rectifier bridge to provide both longitudinal and differential protection in one package. This design innovation results in a capacitive loading characteristic that is log-linear with respect to the signal voltage across the device. This reduces inter-modulation (IM) distortion caused by a typical solid-state protection solution.
SP03-xB Datasheet
Littelfuse SP03-xB Series Arrays

  • RoHS compliant
  • MS-012 SMD (JEDEC SO-8)
  • Low insertion loss, log-linear capacitance
  • Combined longitudinal & metallic protection
  • Clamping speed of nanoseconds
  • UL 94V-0 epoxy molding
  • Pending UL recognized component
  • Low clamping voltage
RoHS compliant SP03-xB Agency Approval Image

  • Compatible with high speed data lines
  • Needs less board space providing increased reliability
  • Low clamping and operating voltage

  • T1/E1 line cards
  • T3/E3 and DS3 interfaces
  • STS-1 interfaces
  • 10/100/1000 BaseT ethernet

 Available in Tape & Reel (TR-ND), Cut Tape (CT-ND), and custom Digi-Reel®
Part Number
Part Number
# of Circuits
Voltage - Working
Power (Watts)
2 - Dual
SP03-xB Series Datasheet