Mfr Part #:

BD135

Mfr Name: Philips

The Philips BD135 is an NPN power transistor designed for driver stages in amplifiers and television circuits. It features a 45V collector-emitter voltage and a 1.5A collector current.

✓ Total Stock: 700 pcs

$ Price Range: $0.09

BD135 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Bristol Electronics ✓ Non-Authorised Inventory information	700 pcs On Request	700 pcs	On Request	1	On Request	On Request	2026-02-25 06:16:38	On Request	On Request

BD135 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Philips
Junction Temperature	150 °C
Lead Spacing	2.54 mm
Lead Style	Radial
Mounting Type	Through Hole
Storage Temperature	-55°C ~ 150°C
Thermal Resistance	10 K/W

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BD135 Description

Short technical summary and product information.

The BD135 from Philips is a versatile NPN power transistor housed in a TO-126 plastic package. It is suitable for applications such as driver stages in hi-fi amplifiers and television circuits.

Key electrical characteristics include a maximum collector-emitter voltage (VCEO) of 45V and a continuous collector current (IC) of up to 1.5A. The peak collector current (ICM) can reach 2A. DC current gain (hFE) ranges from 40 to 250 depending on the specific model and operating conditions.

This transistor also offers a transition frequency (fT) of 190 MHz at 50 mA and 5V. The power dissipation (Ptot) is rated at 8W at a mounting base temperature of 70°C. Thermal resistance from junction to mounting base (Rth j-mb) is 10 K/W.

The BD135 is designed for through-hole mounting. Its PNP complement is the BD136.

BD135 Quick Information

Product Type: NPN Power Transistor

Series: BD135

Canonical Name: BD135 NPN Power Transistor

Subcategory: NPN

BD135 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BD135 Estimated Pricing

Qty	Low	High
1+	$0.09	$0.09

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

BD135 Features

NPN power transistor in TO-126 package
Maximum collector-emitter voltage of 45V
Continuous collector current up to 1.5A
DC current gain ranges from 40 to 250
Transition frequency of 190 MHz

BD135 Applications

Driver stages in hi-fi amplifiers
Driver stages in television circuits
General purpose amplification
Switching applications

BD135 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the maximum collector-emitter voltage of the BD135?

The maximum collector-emitter voltage (VCEO) is 45V.

What is the maximum collector current of the BD135?

The maximum continuous collector current (IC) is 1.5A, with a peak current (ICM) of 2A.

What is the power dissipation of the BD135?

The total power dissipation (Ptot) is 8W at a mounting base temperature of 70°C.

What is the operating temperature range of the BD135?

The operating ambient temperature range is -65°C to +150°C.

What package options are available for the BD135?

The BD135 is available in TO-126 and SOT-32 through-hole packages.

What is the DC current gain (hFE) of the BD135?

At IC=150mA and VCE=2V, the hFE ranges from 40 to 250.

What is the transition frequency of the BD135?

The typical transition frequency (fT) is 190 MHz at IC=50mA and VCE=5V.