PUMZ2,125 Equivalent & Substitute Parts

Part Overview

The PUMZ2,125 is an active Bipolar (BJT) Transistor Array manufactured by Nexperia USA Inc., featuring complementary NPN and PNP transistors in a 6-TSSOP surface mount package. This device is designed for general-purpose switching and amplification applications requiring dual transistor functionality in compact form factors. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to address application requirements including higher current ratings, extended frequency performance, or alternative packaging configurations while maintaining functional compatibility within specified electrical parameters.

Substiute Parts

PUMZ2,125

Nexperia USA Inc.In Stock: 1081PUMZ2,125 Datasheet

Current PartRFQ

MBT3946DW1T1G

onsemiIn Stock: 98481MBT3946DW1T1G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PUMZ2,125 with the MBT3946DW1T1G is determined by the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Transistor configuration: Both devices feature complementary NPN and PNP transistor arrays
• Package compatibility: Both utilize 6-TSSOP/SC-88/SOT-363 surface mount packages
• Collector current capability: MBT3946DW1T1G provides 200mA maximum, exceeding the PUMZ2,125 requirement of 150mA
• Frequency performance: MBT3946DW1T1G operates at 300MHz and 250MHz, exceeding the PUMZ2,125 specification of 100MHz and 190MHz
• Compliance: Both parts are ROHS3 compliant with MSL 1 rating
• Mounting type: Both are surface mount devices

Limiting Parameters:

• Voltage rating: MBT3946DW1T1G has a maximum collector-emitter breakdown voltage of 40V, which is lower than the PUMZ2,125 specification of 50V. This limits substitution to applications operating at or below 40V
• Power dissipation: MBT3946DW1T1G is rated at 150mW maximum, lower than the PUMZ2,125 rating of 300mW

Parameter Comparison

Engineering Selection Recommendations

PUMZ2,125 (Primary Selection): Select the PUMZ2,125 for applications requiring the full 50V collector-emitter breakdown voltage rating and 300mW power dissipation capability. This part is appropriate for general-purpose switching and amplification circuits operating at voltages up to 50V with moderate power requirements. The part is active and in production with established supply availability.

MBT3946DW1T1G (Substitute Selection): The MBT3946DW1T1G serves as a substitute only for applications where the collector-emitter voltage does not exceed 40V and power dissipation remains below 150mW. This substitute is suitable for lower-voltage applications and provides enhanced frequency performance (300MHz, 250MHz) and higher collector current capability (200mA). Both parts maintain identical ROHS3 compliance and MSL 1 ratings, ensuring equivalent environmental and regulatory qualification.

Frequently Asked Questions (FAQ)

Q: Can the MBT3946DW1T1G directly replace the PUMZ2,125 in all applications?

A: No. The MBT3946DW1T1G has a maximum collector-emitter breakdown voltage of 40V compared to the PUMZ2,125 specification of 50V. Direct substitution is limited to circuits operating at 40V or below. Additionally, the MBT3946DW1T1G power rating of 150mW is lower than the PUMZ2,125 rating of 300mW, restricting use in higher power dissipation applications.

Q: Are the package dimensions identical between these parts?

A: Both parts utilize the 6-TSSOP/SC-88/SOT-363 surface mount package family. Pinout and footprint compatibility are maintained, allowing direct PCB substitution from a mechanical standpoint. Verify specific package variant selection (6-TSSOP vs. SC-88/SC70-6) with component datasheets for exact dimensional confirmation.

Q: What is the primary advantage of the MBT3946DW1T1G substitute?

A: The MBT3946DW1T1G provides higher transition frequency performance (300MHz, 250MHz versus 100MHz, 190MHz) and increased collector current capability (200mA versus 150mA). These characteristics make it suitable for higher-speed switching applications within the 40V voltage constraint.

Q: Are there compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant, carry MSL 1 (unlimited) moisture sensitivity ratings, and are REACH unaffected. No compliance or regulatory differentiation exists between the two devices.

Q: What is the impact of the saturation voltage difference?

A: The MBT3946DW1T1G exhibits slightly higher Vce saturation (300mV at 5mA, 50mA versus 250mV for the PUMZ2,125, and 400mV versus 500mV at the same conditions). This difference results in marginally higher power dissipation during saturation but remains within acceptable limits for most general-purpose switching applications.

Q: Which part should be selected for new designs?

A: For new designs, select based on application voltage and power requirements. If the circuit operates at 50V or requires 300mW power dissipation, the PUMZ2,125 is the appropriate choice. If the application is constrained to 40V maximum and 150mW or lower power dissipation, the MBT3946DW1T1G is acceptable and offers superior frequency performance.