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SFF6661/39: 2N6661 Replacement
July 13, 2017

End of Life / DMS Solutions

In addition to its new, innovative product solutions, SSDI offers end of life / DMS solutions to replace hermetic products from most manufacturers including Motorola, Texas Instruments, Microsemi, International Rectifier, Semtech, Siliconix, etc. While products like the 2N6661 N-Channel MOSFET become harder to procure from other sources, SSDI produces replacements to meet the needs of customers facing sustainment or obsolescence issues. SSDI’s in-house engineering and manufacturing capabilities can also offer modified or enhanced products to best meet the customers’ electrical and mechanical specifications. While other manufacturers have a “first-come, first-serve” policy for remaining inventory, SSDI utilizes its vast inventory of die / raw materials and strong foundry relationships to accommodate small quantity orders and alleviate concerns with obsolescence.

SFF6661/39: Replacement for 2N6661, N-Channel MOSFET

The SFF6661/39 is the recommended replacement for the 2N6661 N-Channel MOSFET. The SFF6661/39 produces 0.86 amps and 90 volts with 4 Ω of on-state resistance. These devices can be used in the following applications: HiRel systems, direct logic-level interface (TTL/CMOS), drivers (relays, solenoids, lamps, displays, memories, transistors, etc.), battery operated systems, and solid-state relays.

Features

  • Rugged construction
  • Low RDS(ON) and high transconductance
  • Fast recovery and superior dv/dt performance: t(ON) = 6 nsec typ
  • Increased reverse energy capability
  • Low input and transfer capacitance for easy paralleling: CISS = 35 pF typ, CRSS = 2 pF typ
  • Hermetically sealed package: TO-39
  • Very fast switching speed
  • TX, TXV, and S level screening available
     

SFF6661/39 Data Sheet
 


 

Additional Low RDS(ON) MOSFETs:

SFL630 Series
Logic Level 10 A, 200 V, 400 mΩ Avalanche Rated N-Channel MOSFET

  • Enhanced performance replacement for IRL630 types and 2N6904
  • Hermetically sealed power packaging
  • Low total gate charge, fast switching

SMD.5, Cerpack, & TO-257

SFF130G
14 A, 100 V, 180 mΩ Avalanche Rated
N-Channel MOSFET

  • Enhanced performance replacement for 2N6756
  • Hermetically sealed power packaging
  • Low total gate charge, fast switching

Cerpack

SFT210DE
50 mA, 30 V, 1 nsec High Speed Analog
N-Channel DMOSFET Switch

  • Replacement for SD210DE
  • Ultra-high speed switching
  • Ultra-low reverse capacitance: 0.2 pF
  • Low guaranteed rDS @ 5 V
  • Low turn-on threshold voltage

TO-72

For inquiries or sample requests, contact SSDI today at
(562) 404-4474 or ssdi@ssdi-power.com.



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