KSC1845FTA The KSC1845FTA is an NPN epitaxial silicon transistor from ON Semiconductor. It features a 120V collector-emitter voltage and 50mA collector current, suitable for audio frequency applications.
Mfr Part #:

KSC1845FTA

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The KSC1845FTA is an NPN epitaxial silicon transistor from ON Semiconductor. It features a 120V collector-emitter voltage and 50mA collector current, suitable for audio frequency applications.
Total Stock: 101,738 pcs
$ Price Range: $0.99

KSC1845FTA Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
100,000 pcs
100000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
1,738 pcs
1738 pcs On Request 1 On Request On Request On Request On Request On Request

KSC1845FTA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Current
Collector Current (Maximum)
Collector Cutoff Current (Maximum @ VCB = 120 V, IE = 0)
Collector Cutoff Current (Maximum)
Collector Emitter Breakdown Voltage (Minimum/Maximum @ IC = 1 mA, IB = 0)
Collector Emitter Saturation Voltage (Maximum @ Ic=10 mA, Ib=1 mA)
Collector-Base Voltage
Current
Current-Gain - Bandwidth Product
DC Current Gain (Minimum @ VCE = 6 V, IC = 1 mA)
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter-Base Voltage
Frequency
Junction Temperature
Lead Style
Mounting Type
Noise Figure
Operating Temperature
Output Capacitance
Power
Power Dissipation (Maximum)
Supplier Device Package
Transistor Type
Transition Frequency
Vce Saturation (Max) @ Ib, Ic
Voltage

KSC1845FTA Description

Short technical summary and product information.

The KSC1845FTA is an NPN epitaxial silicon transistor manufactured by ON Semiconductor. It is designed for audio frequency low-noise amplifier applications and is a complement to the KSA992. This device offers a maximum collector-emitter voltage of 120V and a maximum collector current of 50mA.

 

Key electrical characteristics include a minimum DC current gain (hFE) of 300 at 1mA and 6V, a maximum collector-emitter saturation voltage of 300mV at 1mA/10mA, and a transition frequency (fT) of 110MHz. The noise figure is a typical 7dB at 1kHz.

 

The transistor is housed in a TO-92-3 package with formed leads, designed for through-hole mounting on PCBs. It operates at a maximum junction temperature of 150°C and has a maximum power dissipation of 500mW. The device is Pb-Free.

 

Applications include audio preamplifiers, low-noise amplifiers, and consumer electronic circuits requiring low-level signal amplification.

KSC1845FTA Quick Information

Product Type: NPN Transistor
Canonical Name: KSC1845FTA NPN Epitaxial Silicon Transistor
Subcategory: NPN

KSC1845FTA Compliance

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

KSC1845FTA Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

KSC1845FTA Features

  • NPN epitaxial silicon transistor
  • 120V collector-emitter voltage
  • 50mA maximum collector current
  • 110MHz transition frequency
  • TO-92-3 through-hole package

KSC1845FTA Applications

  • Audio frequency low-noise amplifiers
  • Complementary to KSA992
  • Consumer electronic circuits
  • Signal amplification tasks

KSC1845FTA FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the KSC1845FTA?

The maximum collector-emitter voltage for the KSC1845FTA is 120V.

What is the maximum collector current of the KSC1845FTA?

The maximum collector current for the KSC1845FTA is 50mA.

What is the minimum DC current gain (hFE) of the KSC1845FTA?

The minimum DC current gain (hFE) for the KSC1845FTA is 300 at 1mA collector current and 6V collector-emitter voltage.

What is the transition frequency of the KSC1845FTA?

The transition frequency (fT) of the KSC1845FTA is 110MHz.

What is the package type for the KSC1845FTA transistor?

The KSC1845FTA transistor is supplied in a TO-92-3 package with formed leads.

What is the maximum operating temperature for the KSC1845FTA?

The maximum operating temperature (junction temperature) for the KSC1845FTA is 150°C.

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