Mfr Part #:

BD429B

Mfr Name: N-A

The BD429B is an ARINC 429/RS-422 Line Driver from Device Engineering. It supports high and low speed data rates and is compatible with TTL and CMOS logic levels.

✓ Total Stock: 376 pcs

$ Price Range: $0.85

BD429B Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Husky International Electronic ✓ Non-Authorised Inventory information	376 pcs On Request	376 pcs	On Request	1	On Request	On Request	N/A	On Request	On Request

BD429B Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	N-A
Mounting Type	Surface Mount
Operating Temperature Range	Extended (-55°C/+85°C), Military (-55°C/+125°C)
Slew Rate	Adjustable

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BD429B Description

Short technical summary and product information.

The BD429B is a bipolar monolithic integrated circuit designed as an ARINC 429 Line Driver. It meets the requirements for general aviation serial data bus standards, including ARINC 429, ARINC 571, and ARINC 575, as well as the RS-422 standard.

This device offers dual data rates: a HI speed of 100 kHz and a LOW speed of 12.5 kHz. It features TTL and CMOS compatible inputs and an adjustable slew rate controlled by external capacitors. The quiescent power consumption is typically 125mW. The output differential range is programmable via a VREF pin, and the outputs are fused for overvoltage protection, capable of driving a full ARINC load.

The BD429B is available in multiple package options including 16-Pin SOIC (WB), 16-Pin CERDIP, 16-Pin Plastic DIP, 16-Lead Ceramic SOP, and 28L PLCC. It supports extended temperature ranges from -55°C to +85°C and military ranges from -55°C to +125°C. This part serves as a pin-for-pin replacement for industry-standard ARINC 429 Line Drivers.

BD429B Quick Information

Product Type: ARINC 429/RS-422 Line Driver

Canonical Name: BD429B ARINC 429/RS-422 Line Driver Integrated Circuit

Subcategory: ARINC 429/RS-422

BD429B Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BD429B Estimated Pricing

Qty	Low	High
1+	$0.85	$0.85

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

BD429B Features

Supports HI speed (100 kHz) data rates.
Supports LOW speed (12.5 kHz) data rates.
Inputs are TTL and CMOS compatible.
Adjustable slew rates via external capacitors.
Available in multiple package types.

BD429B Applications

Used in ARINC 429 data bus systems.
Suitable for general aviation avionics.
Meets RS-422 standard requirements.
Designed for flight control systems.
Supports navigation data communication.

BD429B FAQs

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

What data rates does the BD429B support?

The BD429B supports HI speed at 100 kHz and LOW speed at 12.5 kHz.

What is the operating temperature range of the BD429B?

The BD429B is available in extended (-55°C to +85°C) and military (-55°C to +125°C) temperature ranges.

What packages is the BD429B available in?

The BD429B is available in 16-Pin SOIC (WB), 16-Pin CERDIP, 16-Pin Plastic DIP, 16-Lead Ceramic SOP, and 28L PLCC packages.

What is the quiescent power consumption of the BD429B?

The typical quiescent power consumption is 125 mW.

What load can the BD429B drive?

The BD429B drives a full ARINC load of 400 Ω and 30,000 pF.

Are the inputs of the BD429B TTL and CMOS compatible?

Yes, the inputs are TTL and CMOS compatible.

What is the output resistance of the BD429B?

The output resistance is 75 Ω ±20% at room temperature.