2SA1943RTU PNP epitaxial silicon transistor rated for 250V collector-emitter voltage and 17A collector current. Suitable for high-fidelity audio output amplifiers.
Mfr Part #:

2SA1943RTU

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP epitaxial silicon transistor rated for 250V collector-emitter voltage and 17A collector current. Suitable for high-fidelity audio output amplifiers.
✓ Total Stock: 1,003 pcs
$ Price Range: $2.97 - $7.74

2SA1943RTU Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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1,003 pcs
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2SA1943RTU 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
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

2SA1943RTU Description

Short technical summary and product information.

The 2SA1943RTU is a PNP epitaxial silicon transistor from onsemi designed for high-power amplification applications. It features a collector-emitter voltage rating of -250V, a continuous collector current of -17A, and a power dissipation of 150W at case temperature 25°C. The device offers a current gain bandwidth product of 30 MHz and a minimum DC current gain (hFE) of 55 at 1A/5V.

 

This transistor is housed in a TO-264-3 (TO-264AA) through-hole package, providing excellent thermal performance with a junction-to-case thermal resistance of 0.83°C/W. It operates over a junction temperature range of -50°C to 150°C. The 2SA1943RTU is part of a family that includes complementary NPN transistors such as the 2SC5200 and FJL4315.

 

Typical applications include high-fidelity audio output amplifiers and general-purpose power amplifiers. The device offers wide safe operating area and excellent gain linearity for low total harmonic distortion. The datasheet also notes that the same transistor die is available in other packages with different power ratings.

2SA1943RTU Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: 2SA1943RTU PNP Epitaxial Silicon Transistor
Subcategory: PNP Power Transistor

2SA1943RTU Compliance

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

2SA1943RTU Estimated Pricing

Qty Low High
1+ $7.74 $7.74
10+ $5.18 $5.18
100+ $4.16 $4.16
500+ $3.69 $3.69
1,000+ $2.97 $2.97

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

2SA1943RTU Features

  • High current capability of 17A.
  • High power dissipation of 150W.
  • High frequency operation up to 30MHz.
  • Excellent gain linearity for low THD.
  • Complementary to 2SC5200 NPN transistor.

2SA1943RTU Applications

  • High-fidelity audio output amplifier.
  • General purpose power amplifier.
  • Industrial power switching applications.

2SA1943RTU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the 2SA1943RTU?

-250V (absolute value 250V for PNP).

What package is the 2SA1943RTU available in?

TO-264-3 (TO-264AA).

What is the operating temperature range?

-50°C to 150°C (junction).

Is the 2SA1943RTU RoHS compliant?

The datasheet states Pb-Free and RoHS Compliant, but this is unverified.

What is the DC current gain (hFE) of the 2SA1943RTU?

Minimum 55 at Vce=-5V, Ic=-1A.

What is the maximum collector current?

-17A (absolute value 17A).

What is the power dissipation rating?

150W at case temperature 25°C.

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