FZT688BTA The FZT688BTA is an NPN silicon planar medium power high gain transistor from Diodes Incorporated, rated for 12V VCEO and 4A continuous collector current. It is supplied in a SOT223-3 surface mount package.
Mfr Part #:

FZT688BTA

Available from 3 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
The FZT688BTA is an NPN silicon planar medium power high gain transistor from Diodes Incorporated, rated for 12V VCEO and 4A continuous collector current. It is supplied in a SOT223-3 surface mount package.
Total Stock: 6,456 pcs
$ Price Range: $0.41 - $1.78

FZT688BTA Available from 3 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
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
956 pcs
956 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
500 pcs
500 pcs On Request 1 On Request On Request On Request On Request On Request

FZT688BTA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base-Emitter Saturation Voltage (Vbe Sat)
Base-Emitter Turn-On Voltage (VBE(on))
Collector-Base Voltage (VCBO)
Collector-Emitter Saturation Voltage (Maximum @ IC=0.1 A, IB=0.5 mA)
Collector-Emitter Saturation Voltage (Maximum @ IC=0.1 A, IB=1 mA)
Collector-Emitter Saturation Voltage (Maximum @ IC=1 A, IB=50 mA)
Collector-Emitter Saturation Voltage (Maximum @ IC=3 A, IB=20 mA)
Collector-Emitter Voltage (VCEO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
DC Current Gain (hFE) (Minimum @ IC=0.1 A, VCE=2 V)
DC Current Gain (hFE) (Minimum @ IC=10 A, VCE=2 V)
Emitter-Base Voltage (VEBO)
Frequency
Input Capacitance (Cibo)
Lead Style
Mounting Type
Operating Temperature
Output Capacitance (Cobo)
Peak Pulse Collector Current (ICM)
Power
SVHC Present
Supplier Device Package
Tape & Reel
Transistor Type
Turn-Off Time (toff)
Turn-On Time (ton)
Vce Saturation (Max) @ Ib, Ic
Voltage

FZT688BTA Description

Short technical summary and product information.

The FZT688BTA is an NPN silicon planar medium power high gain transistor manufactured by Diodes Incorporated. It features a collector-emitter breakdown voltage of 12V and a continuous collector current rating of 4A, with a peak pulse current capability of 10A. The device offers a DC current gain (hFE) of 400 minimum at 3A, making it suitable for applications requiring high gain at moderate currents.

 

Electrical characteristics include a collector-emitter saturation voltage as low as 40mV at 0.1A and 400mV at 4A. The transistor has a typical transition frequency of 150MHz, supporting efficient operation in switching and amplifier circuits. It is housed in a surface mount SOT223-3 package and is designed for operation over a junction temperature range of -55°C to 150°C.

 

The part is particularly suited for flash gun converters and battery-powered circuits where low saturation voltage and high gain are critical. Its complementary type is the FZT788B. The datasheet includes SPICE parameters available upon request for design simulation.

FZT688BTA Quick Information

Product Type: Bipolar Junction Transistor
Canonical Name: FZT688BTA NPN Silicon Planar Medium Power High Gain Transistor
Subcategory: Medium Power Transistor

FZT688BTA Compliance

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

FZT688BTA Estimated Pricing

Qty Low High
1+ $1.78 $1.78
10+ $0.99 $0.99
100+ $0.72 $0.72
500+ $0.59 $0.59
1,000+ $0.41 $0.41

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

FZT688BTA Features

  • NPN silicon planar medium power transistor
  • 12V collector-emitter breakdown voltage
  • 4A continuous collector current rating
  • High DC current gain of 400 at 3A
  • Low collector-emitter saturation voltage

FZT688BTA Applications

  • Flash gun converter circuits
  • Battery-powered electronics
  • Medium power switching applications
  • Linear amplifier stages

FZT688BTA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector current of the FZT688BTA?

The maximum continuous collector current (I C) is 4A, and the peak pulse collector current (I CM) is 10A.

What is the package type of the FZT688BTA?

It is offered in a surface mount SOT223-3 package (TO-261-4, TO-261AA case).

What is the operating temperature range of the FZT688BTA?

The junction and storage temperature range is -55°C to 150°C.

What is the DC current gain (hFE) of the FZT688BTA?

The minimum hFE is 500 at I C=0.1A, 400 at I C=3A, and 100 at I C=10A, all measured at V CE=2V.

What is the transition frequency of the FZT688BTA?

The typical transition frequency (f T) is 150 MHz at I C=50mA, V CE=5V, f=50MHz.

What is the collector-emitter saturation voltage of the FZT688BTA?

The maximum V CE(sat) ranges from 40mV at I C=0.1A, I B=1mA to 400mV at I C=4A, I B=50mA.

What is the complementary type for the FZT688BTA?

The complementary PNP type is the FZT788B, also manufactured by Diodes Incorporated.

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