BD533 NPN power transistor with 45V VCEO, 8A collector current, and 50W power dissipation in a TO-220 package.
Mfr Part #:

BD533

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
NPN power transistor with 45V VCEO, 8A collector current, and 50W power dissipation in a TO-220 package.
Total Stock: 4,522 pcs
$ Price Range: $0.61

BD533 Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,000 pcs
3000 pcs On Request 1 On Request On Request 625 On Request On Request
Non-Authorised Inventory information
1,518 pcs
1518 pcs On Request 1 On Request On Request 05+ On Request On Request
Non-Authorised Inventory information
4 pcs
4 pcs On Request 1 On Request On Request On Request On Request On Request

BD533 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Collector Cut-off Current (ICBO) (Max)
Collector-Base Voltage (VCBO)
Collector-Emitter Sustaining Voltage (VCEO(sus)) (Min)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter Cut-off Current (IEBO) (Max)
Emitter-Base Voltage (VEBO)
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Transistor Type
Vce Sat (Maximum @ Ib=0.2 A, Ic=2 A)
Vce Saturation (Max) @ Ib, Ic
Voltage
hfe (Minimum @ Ic=10 mA, Vce=5 V)

BD533 Description

Short technical summary and product information.

The BD533 is an NPN power transistor manufactured by STMicroelectronics using Planar technology with Base Island layout, offering high gain performance and very low saturation voltage.

 

Key electrical ratings include a collector-emitter voltage of 45V (VCEO), continuous collector current of 8A, and total power dissipation of 50W at 25°C case temperature. The device features a typical DC current gain (hFE) of 25 minimum at 2A collector current and low VCE saturation voltage of 0.8V max at 6A.

 

The transistor comes in the standard through-hole TO-220-3 package, making it suitable for general-purpose power switching and amplification circuits. Operating junction temperature range extends to 150°C.

BD533 Quick Information

Product Type: Bipolar Junction Transistor
Series: BD533
Canonical Name: STMicroelectronics BD533 NPN Power Transistor
Subcategory: Power Transistor

BD533 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BD533 Estimated Pricing

Qty Low High
2,000+ $0.61 $0.61

Estimated market price range - modelled values for guidance only, not live distributor offers.

BD533 Features

  • NPN power transistor with 45V VCEO rating.
  • Continuous collector current of 8 amperes.
  • Power dissipation of 50 watts at case.
  • Low VCE saturation of 0.8V at 6A.
  • Through-hole TO-220 package for mounting.

BD533 Applications

  • Used in power switching and regulation circuits.
  • Suitable for audio amplifier output stages.
  • Employed in motor and relay driver circuits.

BD533 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the BD533?

45V.

What is the maximum collector current?

8A.

What is the maximum power dissipation?

50W at 25°C case temperature.

What package is the BD533 available in?

TO-220-3 through-hole package.

What is the maximum operating junction temperature?

150°C.

What is the DC current gain (hFE) minimum at 2A?

Minimum 25 at Ic=2A, Vce=2V.

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