TIP42C PBFREE Equivalent & Substitute Parts

Part Overview

The TIP42C PBFREE is a PNP bipolar junction transistor manufactured by Central Semiconductor Corp, rated for 100 V collector-emitter breakdown voltage and 6 A maximum collector current. This device is packaged in TO-220-3 through-hole configuration and is designed for general-purpose switching and amplification applications requiring 65 W power dissipation capability.

The TIP42C PBFREE is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and maintenance applications. Active alternative devices with matching electrical and mechanical specifications are available from current manufacturers.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	6	A
Voltage - Collector Emitter Breakdown (Max)	100	V
Power - Max	65	W
Frequency - Transition	3	MHz
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TIP42C PBFREE is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Transistor polarity: PNP configuration
Maximum collector current: 6 A
Maximum collector-emitter breakdown voltage: 100 V
Maximum power dissipation: 65 W
Transition frequency: 3 MHz
Operating temperature range: -65°C to 150°C

Mechanical Specifications:

Mounting technology: Through Hole
Package type: TO-220-3

Compliance Requirements:

RoHS3 compliance
REACH unaffected status
ECCN classification: EAR99

The BD244CG from onsemi meets all specified electrical and mechanical parameters and maintains equivalent compliance certifications. This device is classified as active product status, ensuring ongoing availability and manufacturing support.

Parameter Comparison

Parameter	TIP42C PBFREE	BD244CG	Unit
Manufacturer	Central Semiconductor Corp	onsemi	—
Product Status	Obsolete	Active	—
Transistor Type	PNP	PNP	—
Current - Collector (Ic) (Max)	6	6	A
Voltage - Collector Emitter Breakdown (Max)	100	100	V
Vce Saturation (Max)	1.5 @ 600mA, 6A	1.5 @ 1A, 6A	V
Current - Collector Cutoff (Max)	400	700	µA
DC Current Gain (hFE) (Min)	30 @ 300mA, 4V	15 @ 3A, 4V	—
Power - Max	65	65	W
Frequency - Transition	3	3	MHz
Operating Temperature	-65 to 150	-65 to 150	°C (TJ)
Mounting Type	Through Hole	Through Hole	—
Package / Case	TO-220-3	TO-220-3	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—
REACH Status	REACH Unaffected	REACH Unaffected	—

Engineering Selection Recommendations

The BD244CG is a direct functional equivalent to the TIP42C PBFREE for applications requiring PNP transistor operation at 100 V, 6 A specifications. Both devices share identical electrical ratings for collector current, breakdown voltage, power dissipation, and transition frequency. Both maintain TO-220-3 through-hole packaging, enabling direct mechanical substitution in existing PCB layouts.

The BD244CG offers the advantage of active product status from onsemi, ensuring continued manufacturing support, documented availability, and supply chain reliability. Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements.

The BD244CG exhibits higher collector cutoff current (700 µA versus 400 µA) and lower minimum DC current gain at higher collector current (15 @ 3A versus 30 @ 300mA). These parameter differences remain within the functional equivalence range for general-purpose switching and amplification circuits designed to the TIP42C PBFREE specification.

Frequently Asked Questions (FAQ)

Q: Can BD244CG directly replace TIP42C PBFREE in existing designs?

A: Yes. Both devices are PNP transistors with identical maximum ratings for collector current (6 A), collector-emitter breakdown voltage (100 V), power dissipation (65 W), and transition frequency (3 MHz). Both use TO-220-3 through-hole packaging. No PCB layout modifications are required.

Q: What are the differences between these devices?

A: The primary differences are manufacturer (Central Semiconductor Corp versus onsemi) and product status (obsolete versus active). The BD244CG exhibits higher collector cutoff current and lower minimum DC current gain at elevated collector current levels. These differences do not affect functional equivalence for standard switching and amplification applications.

Q: Are both devices RoHS and REACH compliant?

A: Yes. Both TIP42C PBFREE and BD244CG are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the significance of product status?

A: The TIP42C PBFREE is classified as obsolete, indicating discontinued manufacturing. The BD244CG is active product, ensuring ongoing availability from onsemi and established supply chain support for future procurement.

Q: Are there packaging differences?

A: Both devices use TO-220-3 through-hole packaging. The TIP42C PBFREE supplier device package is listed as TO-220-3. The BD244CG supplier device package is listed as TO-220, which is equivalent to TO-220-3 for three-terminal configurations. No mechanical adaptation is required.

Q: Can these devices be used interchangeably in high-frequency applications?

A: Both devices specify 3 MHz transition frequency. Application suitability depends on circuit design requirements. The transition frequency specification indicates both devices are suitable for general-purpose switching applications within this frequency range.

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