2SB1205T-E PNP bipolar transistor rated at -20V collector-emitter and -5A collector current, with low saturation voltage and 320MHz gain bandwidth. Available in TO-251-3 (TP) through-hole package.
Mfr Part #:

2SB1205T-E

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP bipolar transistor rated at -20V collector-emitter and -5A collector current, with low saturation voltage and 320MHz gain bandwidth. Available in TO-251-3 (TP) through-hole package.
Total Stock: 18,445 pcs
$ Price Range: $0.15

2SB1205T-E Available from 1 distributor

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2SB1205T-E Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Current (IB)
Collector Current Pulse (ICP)
Collector Cutoff Current (ICBO)
Collector to Base Breakdown Voltage (V(BR)CBO)
Collector to Emitter Breakdown Voltage (V(BR)CEO)
Collector-to-Base Voltage (VCBO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
DC Current Gain (hFE) (Minimum @ VCE=-2 V, IC=-4 A)
Emitter Cutoff Current (Iebo)
Emitter to Base Breakdown Voltage (V(BR)EBO)
Emitter-to-Base Voltage (VEBO)
Fall Time (tf)
Frequency
Junction Temperature (TJ)
Lead Style
Mounting Type
Operating Temperature
Output Capacitance (Cob)
Power
Power Dissipation (Maximum @ TC=25 °C)
Standard Package Quantity
Storage Temperature
Storage Temperature Range
Storage Time (tstg)
Supplier Device Package
Tape & Reel
Transistor Type
Turn-On Time (ton)
Vce Saturation (Max) @ Ib, Ic
Voltage

2SB1205T-E Description

Short technical summary and product information.

The 2SB1205T-E is a PNP bipolar junction transistor from ON Semiconductor featuring a collector-emitter voltage rating of -20 V and a continuous collector current rating of -5 A. It is designed for low saturation voltage and fast switching, with a typical gain-bandwidth product of 320 MHz and a DC current gain (hFE) of 200 minimum at 500 mA and 60 minimum at 4 A. The device can dissipate up to 1 W at 25°C ambient and 10 W at 25°C case temperature.

 

The transistor offers a maximum collector current of -8 A in pulse operation and a base current rating of -0.5 A. Saturation voltage is typically -250 mV at -3 A collector current and -60 mA base current, with a maximum of -500 mV. Switching times are 40 ns turn-on, 200 ns storage, and 10 ns fall time. The collector-to-base, collector-to-emitter, and emitter-to-base breakdown voltages are -25 V, -20 V, and -5 V respectively.

 

Packaged in a TO-251-3 (TP) through-hole package with short leads, this device is suitable for applications such as flash units, voltage regulators, relay drivers, and lamp drivers. The junction temperature limit is 150°C and storage temperature range is -55°C to 150°C.

2SB1205T-E Quick Information

Product Type: PNP Bipolar Junction Transistor
Series: 2SB1205
Canonical Name: PNP Bipolar Transistor - 2SB1205T-E
Subcategory: Single Bipolar Transistor

2SB1205T-E Compliance

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

2SB1205T-E Estimated Pricing

Qty Low High
4,000+ $0.15 $0.15

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

2SB1205T-E Features

  • PNP transistor rated -20V and -5A.
  • Low saturation voltage for efficient switching.
  • Fast switching speed with 320MHz fT.
  • Through-hole TO-251-3 TP package.
  • High hFE min 200 at 500mA.

2SB1205T-E Applications

  • Suitable for flash and strobe circuits.
  • Used in voltage regulator output stages.
  • Drives relays and lamp loads.
  • Small slim package saves board space.

2SB1205T-E FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the 2SB1205T-E?

The VCEO rating is -20V.

What is the maximum collector current?

The maximum continuous collector current is -5A, with -8A for pulse operation.

What is the package and mounting type?

It comes in a TO-251-3 (TP) through-hole package with short leads.

What is the operating temperature range?

Maximum junction temperature is 150°C; storage range is -55 to +150°C.

Is the 2SB1205T-E RoHS compliant?

Existing data lists it as RoHS3 compliant, though this is unverified.

What is the DC current gain (hFE)?

Minimum hFE is 200 at 500mA and 2V, and 60 at 4A and 2V.

What are the typical applications for this transistor?

Datasheet lists flash units, voltage regulators, relay drivers, and lamp drivers.

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