Transistors and resistors are combined in one package. This 

• saves space
• reduces pick and place costs 
• offers additional option for circuit design 
• reduces bom costs
   

Resistor equipped transistors (RETs) are also known as: 

• Digital transistors
• Pre-Bias transistors
• Built in resistor bipolar transistors

RETs can be used in:

• Low side switch
• High side switch
• Push pull stage

RETs are suitable for use in numerous applications including:

• Automotive
• Industrial and Power
• Communication
• And many more

Nexperia offers more than 400 parts to chose from including: 

• 50 V RETs with 100 mA
• 50 V RETs with 500 mA
• 80 V RETs with 100 mA
• 40 V with 600mA Low VCEsat RETs (Performance based RETs (PBR))

Within Nexperia’s RET portfolio you will find single and dual RETs with a great variety of resistor combinations.

Nexperia RETs are available in a wide range of leaded and leadless SMD packages:
Standard leaded SMD packages like SOT23, SOT323, SOT457, SOT223 as well as leadless SMD packages like the very small DFN1006-3 and DFN packages with side-wettable flanks like DFN1110D-3 and DFN1412D-3

Most of our products are qualified to AEC-Q101, please always check the datasheet.

A voltage swing of approx. 1.2 V is sufficient for switching the RET. Therefore, RETs can be easily driven directly by a micro controller. 

Nexperia RETs have a state-of-the-art ratio tolerance of down to +-10% (PBR)
 

Nexperia is offering 80 V RETs that provide enough headroom for use in 48 V automotive board net (e.g. mild hybrid and EV cars) and other higher voltage circuits which are often subject to large spikes and pulses that previous 50 V parts cannot handle. The new series (NHDTx and NHUMx) includes 42 parts with PNP / NPN combinations. These come with the same bias resistor combinations as Nexperia’s 50 V parts. Devices have a 100 mA current capability and are AEC-Q101-approved.