TJF1441AT/0Z CANbus Transceiver Half Equivalent & Substitute Parts

Part Overview

The TJF1441AT/0Z is an active-status interface integrated circuit functioning as a half-duplex CANbus transceiver with 1/1 driver/receiver configuration. This component operates within the 4.5V to 5.5V supply voltage range and supports data rates up to 5 Mbps, making it suitable for automotive and industrial CAN network applications. The device is packaged in an 8-SOIC surface-mount package and maintains ROHS3 compliance with unlimited moisture sensitivity rating.

Substitute parts are necessary when the primary part number experiences inventory constraints, supply chain disruptions, or when design flexibility permits selection from qualified alternatives that maintain identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Protocol	CANbus
Type	Transceiver
Number of Drivers/Receivers	1/1
Duplex Configuration	Half
Data Rate	5 Mbps
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature Range	-40°C ~ 150°C (TJ)
Receiver Hysteresis	50 mV
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TJF1441AT/0Z is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

CANbus protocol implementation
Half-duplex transceiver configuration with 1/1 driver/receiver count
5 Mbps maximum data rate capability
4.5V to 5.5V supply voltage range
-40°C to 150°C operating temperature range
50 mV receiver hysteresis specification
8-SOIC surface-mount package (0.154", 3.90mm width)
ROHS3 compliance status
MSL 1 moisture sensitivity rating

All substitute parts listed maintain these specifications without deviation. The TJA1441BT/0Z, TJA1441DT/0Z, and TJA1442BT/0Z are direct parametric equivalents manufactured by NXP USA Inc. and are interchangeable at the component level based on electrical and mechanical compatibility.

Parameter Comparison

Parameter	TJF1441AT/0Z	TJA1441BT/0Z	TJA1441DT/0Z	TJA1442BT/0Z
Manufacturer	NXP USA Inc.	NXP USA Inc.	NXP USA Inc.	NXP USA Inc.
Category	Interface	Interface	Interface	Interface
Type	Transceiver	Transceiver	Transceiver	Transceiver
Protocol	CANbus	CANbus	CANbus	CANbus
Drivers/Receivers	1/1	1/1	1/1	1/1
Duplex	Half	Half	Half	Half
Receiver Hysteresis	50 mV	50 mV	50 mV	50 mV
Data Rate	5 Mbps	5 Mbps	5 Mbps	5 Mbps
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain active product status with NXP USA Inc., ensuring continued manufacturing support and supply availability. The TJA1441BT/0Z and TJA1442BT/0Z variants carry automotive-grade qualification under AEC-Q100 standard, providing enhanced reliability documentation for applications requiring automotive compliance. The TJA1441DT/0Z also maintains AEC-Q100 qualification.

Selection between the TJF1441AT/0Z and its substitutes should be based on inventory availability and application requirements. For automotive applications where AEC-Q100 qualification is mandatory, the TJA1441BT/0Z, TJA1441DT/0Z, or TJA1442BT/0Z are appropriate selections. All parts are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Current inventory levels indicate TJA1441BT/0Z (20,400 units) and TJA1442BT/0Z (13,209 units) maintain higher stock positions compared to TJF1441AT/0Z (1,204 units) and TJA1441DT/0Z (3,814 units).

Frequently Asked Questions (FAQ)

Q: Can TJA1441BT/0Z replace TJF1441AT/0Z in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, operating ranges, and 8-SOIC package dimensions. Direct substitution is supported at the component level.

Q: What is the difference between TJA1441BT/0Z and TJA1442BT/0Z?

A: Both parts maintain identical electrical and mechanical specifications as listed in the parameter comparison table. Selection between them is based on availability and supply chain considerations.

Q: Are the substitute parts suitable for automotive applications?

A: The TJA1441BT/0Z, TJA1441DT/0Z, and TJA1442BT/0Z carry automotive-grade designation with AEC-Q100 qualification. The TJF1441AT/0Z does not list automotive qualification. For automotive applications requiring AEC-Q100 compliance, the qualified variants are appropriate selections.

Q: Do all parts require identical PCB footprints?

A: Yes. All parts use the 8-SOIC package with 0.154" width and 3.90mm dimensions. PCB footprints are identical, and no layout modifications are required for substitution.

Q: What is the significance of the MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture-related degradation concerns. All listed parts carry this rating, eliminating moisture management as a substitution constraint.

Q: Are there any supply voltage or temperature range differences?

A: No. All parts operate within 4.5V to 5.5V supply range and -40°C to 150°C junction temperature range. Electrical operating conditions are identical across all substitutes.

Q: What compliance standards apply to all listed parts?

A: All parts are ROHS3 compliant and REACH unaffected. The substitute parts with automotive qualification additionally meet AEC-Q100 standards.

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