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Junction Box

Automotive junction boxes come in two types: those using mechanical relays and those using MOSFETs as semiconductor relays.
To meet the needs of mechanical-relay drive applications, Toshiba has developed the SSM3K337R, a MOSFET in a small package (with 85% of the mounting area of the predecessor) that has active clamping circuitry for inductive loads. Toshiba also offers power MOSFETs in DPAK+ and TO-220SM (W) packages suitable for semiconductor relay applications.

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System Block Diagram

추천제품

Block Type Package Part Number Polarity/Generation Feature
Mechanical Relay MOSFET SOT23F SSM3K337R Active Clamp Nch 38 V/2 A, 0.28Ω@4.5 V
UFM SSM3H137TU Nch + ZD 34 V/2 A, 0.28Ω@4.5 V
MOSFET + ZD PS8 TPCP8R01 60 V/2 A, 0.44Ω@4.0 V, VZ = 43 V
Semicon. Relay MOSFET DPAK+ TK100S04N1L Nch / VIII 40 V/100 A, 2.3 mΩ, Tch = 175°C
IPD PS-8 TPD7104AF BiCD process 1 ch high side Nch MOSFET Gate drive.
Power Supply Regulators SSOP20 TB9005FNG Single output (external transistors required), LDO (5 V), Watchdog timer, Topr: -40 to 125°C
SSOP16 TB9021FNG Single output (with integrated output transistors), LDO (5 V, 200 mA), Window-Watchdog timer, Topr: -40 to 125°C
BipTr New PW-Mold TTA005 PNP -50 V/-5 A/hFE 200 min
TTB002 -60V/-6A/hFE 100 min

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