BULD118D-1 NPN bipolar transistor rated for 400V collector-emitter voltage and 2A collector current. Packaged in a through-hole TO-251 (IPAK) case.
Mfr Part #:

BULD118D-1

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
NPN bipolar transistor rated for 400V collector-emitter voltage and 2A collector current. Packaged in a through-hole TO-251 (IPAK) case.
✓ Total Stock: 60,525 pcs
$ Price Range: $0.31 - $1.37

BULD118D-1 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
58,725 pcs
58725 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,800 pcs
1800 pcs On Request 1 On Request On Request 09+ On Request On Request

BULD118D-1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BULD118D-1 Description

Short technical summary and product information.

The BULD118D-1 is an NPN bipolar junction transistor manufactured by STMicroelectronics. It is designed for general-purpose switching and amplification applications requiring high voltage capability. The transistor features a maximum collector-emitter voltage of 400V and a maximum collector current of 2A, with a power dissipation of 20W. It offers a minimum DC current gain (hFE) of 10 at 500mA collector current and 5V collector-emitter voltage. The collector-emitter saturation voltage is typically 1.5V at 2A collector current with 400mA base current. The device can operate at junction temperatures up to 150°C.

 

The BULD118D-1 is housed in a through-hole TO-251-3 package (also known as IPAK or TO-251AA), which is suitable for automated insertion and manual assembly. The supplier device package is TO-251 (IPAK). This transistor is RoHS3 compliant and has a moisture sensitivity level of 1 (unlimited).

BULD118D-1 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: BULD118D-1 NPN Bipolar Transistor
Subcategory: Single NPN

BULD118D-1 Compliance

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

BULD118D-1 Estimated Pricing

Qty Low High
1+ $1.37 $1.37
10+ $0.60 $0.60
100+ $0.54 $0.54
500+ $0.44 $0.44
1,000+ $0.37 $0.37
3,000+ $0.33 $0.33
9,000+ $0.31 $0.31

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

BULD118D-1 Features

  • NPN bipolar junction transistor design.
  • Rated for 400V collector-emitter voltage.
  • Supports up to 2A collector current.
  • 20W power dissipation capability.
  • Through-hole TO-251 (IPAK) package.

BULD118D-1 Applications

  • Used in high-voltage switching circuits.
  • Suitable for power supply control stages.
  • Ideal for motor drive applications.
  • Applicable in inverter and converter designs.

BULD118D-1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BULD118D-1?

400V.

What is the maximum collector current?

2A.

What is the power dissipation rating?

20W.

What is the package type?

TO-251-3 (IPAK, TO-251AA) through-hole.

What is the maximum junction temperature?

150°C.

Is the BULD118D-1 RoHS compliant?

Yes, RoHS3 compliant.

What is the minimum DC current gain?

10 at Ic=500mA, Vce=5V.

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