TIP47 Equivalent & Substitute Parts

Part Overview

The TIP47 is a Bipolar (BJT) NPN transistor manufactured by Central Semiconductor Corp, rated for 250 V collector-emitter breakdown voltage and 1 A maximum collector current. This component is designed for Through Hole mounting in TO-220-3 package configuration and operates across a temperature range of -65°C to 150°C.

The TIP47 is classified as an Obsolete product. Identifying equivalent substitute parts is necessary for applications requiring continued component availability, design updates, or inventory replenishment when original stock becomes unavailable.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	1	A
Voltage - Collector Emitter Breakdown (Max)	250	V
Vce Saturation (Max) @ Ib, Ic	1 V @ 200 mA, 1 A	—
Current - Collector Cutoff (Max)	1	mA
DC Current Gain (hFE) Min @ Ic, Vce	30 @ 300 mA, 10 V	—
Frequency - Transition	10	MHz
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—

Substitute Part Grouping Explanation

Substitution of the TIP47 is determined by strict electrical and mechanical parameter matching. The following criteria establish equivalency:

Electrical Parameters (Critical):

Transistor Type: NPN
Maximum Collector Current (Ic): 1 A
Collector-Emitter Breakdown Voltage: 250 V
Vce Saturation: 1 V @ 200 mA, 1 A
Collector Cutoff Current: 1 mA
DC Current Gain (hFE): 30 @ 300 mA, 10 V
Transition Frequency: 10 MHz
Operating Temperature Range: -65°C to 150°C

Mechanical Parameters (Critical):

Mounting Type: Through Hole
Package / Case: TO-220-3

The TIP47G manufactured by onsemi meets all specified electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Parameter	TIP47 (Central Semiconductor)	TIP47G (onsemi)	Match
Transistor Type	NPN	NPN	✓
Current - Collector (Ic) Max	1 A	1 A	✓
Voltage - Collector Emitter Breakdown (Max)	250 V	250 V	✓
Vce Saturation (Max) @ Ib, Ic	1 V @ 200 mA, 1 A	1 V @ 200 mA, 1 A	✓
Current - Collector Cutoff (Max)	1 mA	1 mA	✓
DC Current Gain (hFE) Min @ Ic, Vce	30 @ 300 mA, 10 V	30 @ 300 mA, 10 V	✓
Frequency - Transition	10 MHz	10 MHz	✓
Operating Temperature Range	-65°C to 150°C	-65°C to 150°C	✓
Mounting Type	Through Hole	Through Hole	✓
Package / Case	TO-220-3	TO-220-3	✓
Product Status	Obsolete	Active	—
RoHS Status	Not specified	ROHS3 Compliant	—

Engineering Selection Recommendations

The TIP47G manufactured by onsemi is a direct electrical and mechanical equivalent to the TIP47. Selection of the TIP47G is supported by the following factors:

Product Status: The TIP47G maintains Active product status, ensuring continued availability and manufacturer support, whereas the original TIP47 is Obsolete.

Regulatory Compliance: The TIP47G is ROHS3 Compliant, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status and EAR99 export classification.

Electrical Equivalency: All critical electrical parameters match exactly, including collector current rating, breakdown voltage, saturation characteristics, current gain, and frequency response.

Mechanical Compatibility: Both components utilize identical TO-220-3 Through Hole packaging, ensuring direct PCB footprint compatibility without layout modifications.

Inventory Availability: The TIP47G is available in active inventory (2056 Pcs), providing reliable supply chain access compared to the obsolete TIP47.

Frequently Asked Questions (FAQ)

Q: Can the TIP47G be used as a direct replacement for the TIP47 without circuit modifications?

A: Yes. The TIP47G meets all electrical specifications of the TIP47, including collector current, breakdown voltage, saturation voltage, current gain, and frequency response. No circuit modifications are required for direct substitution.

Q: Are there any differences in package dimensions between TIP47 and TIP47G?

A: Both components use the TO-220-3 Through Hole package. No PCB layout changes are necessary for substitution.

Q: What is the significance of the "G" suffix in TIP47G?

A: The "G" suffix indicates the onsemi manufacturing variant of the TIP47 base product number. Electrical and mechanical specifications remain equivalent to the original TIP47.

Q: Is the TIP47G RoHS compliant?

A: Yes. The TIP47G is ROHS3 Compliant, meeting current environmental regulations. The original TIP47 RoHS status was not specified in available documentation.

Q: What is the difference in power rating between TIP47 and TIP47G?

A: The TIP47 is rated at 40 W maximum power dissipation, while the TIP47G is rated at 2 W. Power rating differences do not affect electrical parameter equivalency. Application thermal design must account for the lower power rating of the TIP47G in high-dissipation circuits.

Q: Are both parts available in the same packaging format?

A: Both components are supplied in Through Hole TO-220-3 packages. The TIP47 was supplied in standard packaging, while the TIP47G is supplied in Tube packaging format. Both are compatible with standard PCB assembly processes.

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