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2SB1143S PNP bipolar transistor rated for 50V collector-emitter voltage and 4A continuous collector current. Housed in a TO-126ML through-hole package.
Mfr Part #:

2SB1143S

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP bipolar transistor rated for 50V collector-emitter voltage and 4A continuous collector current. Housed in a TO-126ML through-hole package.
✓ Total Stock: 1,200 pcs
$ Price Range: $0.35

2SB1143S Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
1,200 pcs
On Request
1200 pcs On Request 1 On Request On Request On Request On Request On Request
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2SB1143S Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
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2SB1143S Description

Short technical summary and product information.

The 2SB1143S is a PNP bipolar junction transistor from On Semiconductor designed for general-purpose switching and amplification. It features a maximum collector-emitter voltage of 50V and a continuous collector current rating of 4A, with a pulse current capability of 6A. The device offers a low collector-emitter saturation voltage of typically 190mV at 2A, contributing to efficient operation in power management circuits.

 

With a DC current gain (hFE) of 140 minimum at 100mA and 40 minimum at 3A, the transistor provides consistent amplification across a wide current range. The gain-bandwidth product of 150 MHz supports moderate-speed switching applications. The device is housed in a TO-126ML through-hole package, which is compatible with TO-126 and TO-225AA footprints, and is supplied in bags of 200 pieces.

 

Typical applications include voltage regulators, relay drivers, and lamp drivers. The transistor is lead-free (Pb Free) as verified by the datasheet ordering information.

2SB1143S Quick Information

Product Type: Bipolar Transistor
Canonical Name: 2SB1143S PNP Bipolar Transistor, 50V VCEO, 4A IC, TO-126ML
Subcategory: PNP

2SB1143S Compliance

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

2SB1143S Estimated Pricing

Qty Low High
865+ $0.35 $0.35

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

2SB1143S Features

  • PNP bipolar transistor with 50V VCEO.
  • 4A continuous collector current rating.
  • Low saturation voltage of 190 mV typical.
  • 150 MHz gain-bandwidth product.
  • TO-126ML through-hole package.

2SB1143S Applications

  • Used in voltage regulator circuits.
  • Drives relays and solenoids.
  • Suitable for lamp driver applications.
  • General purpose switching and amplification.

2SB1143S FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the 2SB1143S?

The maximum collector-emitter voltage (VCEO) is 50V.

What is the package type of the 2SB1143S?

The 2SB1143S is supplied in a TO-126ML through-hole package, compatible with TO-126 and TO-225AA footprints.

What is the operating junction temperature range?

The maximum junction temperature is 150°C, and the storage temperature range is -55°C to +150°C.

Is the 2SB1143S RoHS compliant?

The RoHS status is listed as RoHS3 Compliant but is unverified. The datasheet confirms the device is lead-free (Pb Free).

What is the DC current gain (hFE) of the 2SB1143S?

The DC current gain is 140 minimum at Vce=2V, Ic=100mA, and 40 minimum at Vce=2V, Ic=3A.

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