Mfr Part #:

DDTC143EUA-7-F

NPN pre-biased transistor with built-in biasing resistors (R1=R2=4.7kΩ). Rated for 100mA collector current and 50V collector-emitter voltage in a SOT-323 surface mount package.

✓ Total Stock: 13,020 pcs

$ Price Range: $0.05 - $0.27

DDTC143EUA-7-F Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	13,020 pcs On Request	13020 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

DDTC143EUA-7-F Description

Short technical summary and product information.

The DDTC143EUA-7-F is an NPN pre-biased transistor from Diodes Incorporated, part of the DDTC series with built-in biasing resistors (R1=R2=4.7kΩ). This device simplifies circuit design by integrating the bias network, reducing component count and board space.

Key electrical specifications include a collector current rating of 100mA, a maximum collector-emitter voltage of 50V, and a power dissipation of 200mW. The transistor offers a DC current gain (hFE) of minimum 20 at Ic=10mA, Vce=5V, and a transition frequency of 250MHz, making it suitable for low-frequency switching and amplification.

The device is housed in a surface-mount SOT-323 package (SC-70 equivalent) with matte tin plated leads. It is RoHS3 compliant, halogen-free, and MSL Level 1 per J-STD-020. The part is supplied on 7-inch reels with 3000 units per reel.

DDTC143EUA-7-F Quick Information

Product Type: Pre-Biased NPN Transistor

Series: DDTC

Canonical Name: NPN Pre-Biased Transistor, 100mA, 50V, SOT-323

Subcategory: Pre-Biased

DDTC143EUA-7-F Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): Level 1 per J-STD-020

REACH Status: REACH Unaffected

Lead Free: Yes

DDTC143EUA-7-F Estimated Pricing

Qty	Low	High
1+	$0.27	$0.27
10+	$0.17	$0.17
25+	$0.14	$0.14
50+	$0.12	$0.12
100+	$0.10	$0.10
3,000+	$0.05	$0.05
9,000+	$0.05	$0.05

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

DDTC143EUA-7-F Features

NPN pre-biased transistor with built-in 4.7kΩ resistors.
Rated for 100mA collector current and 50V Vce.
200mW power dissipation in SOT-323 package.
Transition frequency of 250MHz.
RoHS3 compliant and halogen-free.

DDTC143EUA-7-F Applications

Ideal for low-power switching circuits.
Used in inverter and interface circuits.
Suitable for signal amplification in portable devices.
Common in automotive electronics (AEC-Q101 qualified variants available).

DDTC143EUA-7-F FAQs

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

What is the collector-emitter voltage rating?

The maximum collector-emitter voltage is 50V.

What is the collector current rating?

The nominal collector current is 100mA.

What is the built-in resistor value?

Both R1 and R2 are 4.7kΩ nominal.

What is the DC current gain (hFE)?

Minimum hFE is 20 at Ic=10mA, Vce=5V.

What is the power dissipation?

The power dissipation is 200mW.

What is the package type?

The device is packaged in SOT-323 (SC-70).

Is it RoHS compliant?

Yes, it is RoHS3 compliant.

Category	Transistors - Bipolar (BJT) - Single, Pre-Biased
Manufacturer Name	Diodes Incorporated
AEC Qualified	Yes
Automotive Grade	Yes
Current	100 mA
DC Current Gain (hFE) (Min) @ Ic, Vce	20 @ 10mA, 5V
Frequency	250 MHz
Halogen Free	Yes
Mounting Type	Surface Mount
Power	200 mW
Resistor	4.7 kΩ
Storage Temperature	-55°C ~ 150°C
Supplier Device Package	SOT-323
Tape & Reel	Yes
Tape Width	8 mm
Transistor Type	NPN - Pre-Biased
Vce Saturation (Max) @ Ib, Ic	300mV @ 500µA, 10mA
Voltage	50 V
Weight	0.008 g