BTS133 Equivalent & Substitute Parts

Part Overview

The BTS133 is an N-Channel power switch/driver IC manufactured by Infineon Technologies, designed for low-side switching applications with a 1:1 input-to-output ratio. This device operates at a maximum load voltage of 60V with an output current capability of 7A and an on-resistance (RDS On) of 40mOhm typical. The BTS133 is packaged in TO-220-3 and features integrated fault protection including current limiting, over-temperature, and over-voltage protection.

The BTS133 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	BTS133
Manufacturer	Infineon Technologies
Category	Power Management (PMIC)
Switch Type	General Purpose
Output Configuration	Low Side
Output Type	N-Channel
Ratio - Input:Output	1:1
Voltage - Load (Max)	60V
Current - Output (Max)	7A
RDS On (Typ)	40mOhm
Fault Protection	Current Limiting (Fixed), Over Temperature, Over Voltage
Package / Case	TO-220-3
Mounting Type	Through Hole
Operating Temperature	-40°C ~ 150°C (TJ)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the BTS133 are identified based on the following critical parameters that determine functional compatibility:

Output Configuration: Low Side switching topology
Output Type: N-Channel MOSFET driver
Ratio - Input:Output: 1:1 control ratio
Package / Case: TO-220-3 form factor for direct pin compatibility
Mounting Type: Through Hole for PCB integration
Fault Protection: Current Limiting, Over Temperature, Over Voltage protection
Interface: On/Off control logic

The substitute parts VNP20N07-E and VNP35N07-E from STMicroelectronics meet these core substitution criteria. Both devices maintain the same output configuration, control ratio, package type, and protective features as the BTS133. Differences in maximum load voltage, output current, and on-resistance are secondary parameters that must be evaluated based on specific application requirements.

Parameter Comparison

Parameter	BTS133	VNP20N07-E	VNP35N07-E
Manufacturer	Infineon Technologies	STMicroelectronics	STMicroelectronics
Category	Power Management (PMIC)	Power Management (PMIC)	Power Management (PMIC)
Switch Type	General Purpose	General Purpose	General Purpose
Output Configuration	Low Side	Low Side	Low Side
Output Type	N-Channel	N-Channel	N-Channel
Ratio - Input:Output	1:1	1:1	1:1
Voltage - Load (Max)	60V	55V	55V
Current - Output (Max)	7A	14A	25A
RDS On (Typ)	40mOhm	50mOhm (Max)	280mOhm (Max)
Fault Protection	Current Limiting (Fixed), Over Temperature, Over Voltage	Current Limiting (Fixed), Over Temperature, Over Voltage	Current Limiting (Fixed), Over Temperature, Over Voltage
Package / Case	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VNP20N07-E is suitable for applications where the BTS133's 7A output current specification is adequate. This substitute maintains comparable on-resistance performance (50mOhm max versus 40mOhm typical) and operates at a maximum load voltage of 55V, which is 5V lower than the BTS133. The VNP20N07-E is currently in active production status with ROHS3 compliance certification.

VNP35N07-E is suitable for applications requiring higher output current capacity (25A maximum). This substitute operates at the same 55V maximum load voltage as the VNP20N07-E. The VNP35N07-E exhibits higher on-resistance (280mOhm max) compared to the BTS133 and should be selected only when the increased current capability is required. This device is also in active production status with ROHS3 compliance certification.

Both substitute parts are manufactured by STMicroelectronics and are REACH Unaffected, matching the compliance profile of the original BTS133.

Frequently Asked Questions (FAQ)

Q: Can VNP20N07-E or VNP35N07-E be used as direct pin-for-pin replacements for BTS133?

A: Yes. Both substitute parts share the same TO-220-3 package and pin configuration as the BTS133, enabling direct PCB substitution without layout modifications.

Q: What is the primary difference between VNP20N07-E and VNP35N07-E?

A: The VNP20N07-E is rated for 14A maximum output current with 50mOhm on-resistance, while the VNP35N07-E is rated for 25A maximum output current with 280mOhm on-resistance. Select based on your application's current requirements.

Q: Why is the maximum load voltage lower on the substitute parts (55V) compared to the BTS133 (60V)?

A: The STMicroelectronics VNPower series is rated for 55V maximum load voltage. Applications operating above 55V require verification that the BTS133's 60V rating is essential to the design.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both VNP20N07-E and VNP35N07-E are ROHS3 compliant. The BTS133 RoHS status was not specified in the original documentation.

Q: What is the status of the substitute parts?

A: Both VNP20N07-E and VNP35N07-E are in active production status, ensuring long-term availability and supply chain continuity.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message