PUMD16/ZLX Equivalent & Substitute Parts

Part Overview

The PUMD16/ZLX is a pre-biased dual bipolar transistor (BJT) manufactured by Nexperia USA Inc., configured as 1 NPN and 1 PNP transistor pair in a 6-TSSOP surface mount package. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

Substiute Parts

PUMD16/ZLX

Nexperia USA Inc.In Stock: 1079PUMD16/ZLX Datasheet

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DCX124EU-7-F

Diodes IncorporatedIn Stock: 18292DCX124EU-7-F Datasheet

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DCX124EUQ-7-F

Diodes IncorporatedIn Stock: 7754DCX124EUQ-7-F Datasheet

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DDC124EU-7-F

Diodes IncorporatedIn Stock: 15898DDC124EU-7-F Datasheet

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MUN5212DW1T1G

onsemiIn Stock: 96926MUN5212DW1T1G Datasheet

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NSVMUN5334DW1T1G

onsemiIn Stock: 942NSVMUN5334DW1T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PUMD16/ZLX is determined by the following critical parameters:

Primary Substitution Criteria:

• Transistor configuration (1 NPN, 1 PNP dual or equivalent topology)
• Maximum collector current rating (100mA minimum)
• Collector-emitter breakdown voltage (50V minimum)
• Package compatibility (6-TSSOP / SOT-363 surface mount)
• Base and emitter-base resistor values (47kOhms or compatible values)
• Power dissipation capability (300mW or greater)
• RoHS3 compliance and MSL Level 1 rating

Substitution Constraints:

• Parts with different transistor configurations (e.g., 2 NPN only) are listed as partial substitutes due to topology differences
• Parts with lower power ratings or different resistor networks require circuit evaluation
• Automotive-grade variants are identified separately based on qualification status

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (1 NPN, 1 PNP Configuration):

The DCX124EU-7-F and DCX124EUQ-7-F from Diodes Incorporated provide the same transistor configuration (1 NPN, 1 PNP) with identical voltage and current ratings. Both parts are active products with RoHS3 compliance and MSL Level 1 rating. The DCX124EUQ-7-F carries automotive qualification (AEC-Q101) and is suitable for automotive applications. The primary difference from the PUMD16/ZLX is the reduced base resistor values (22kOhms vs. 47kOhms) and lower maximum power dissipation (200mW vs. 300mW). These differences require circuit evaluation to confirm compatibility.

The NSVMUN5334DW1T1G from onsemi maintains the 1 NPN, 1 PNP configuration with mixed resistor values (22kOhms base, 47kOhms emitter-base), matching the original part's emitter-base resistor specification. This part offers 250mW power dissipation and is an active product with full compliance certifications.

Partial Substitutes (2 NPN Configuration):

The DDC124EU-7-F and MUN5212DW1T1G are configured as dual NPN transistors (2 NPN) rather than the mixed NPN/PNP configuration of the PUMD16/ZLX. These parts share identical voltage and current ratings with 22kOhms resistor networks. The DDC124EU-7-F provides 200mW power dissipation, while the MUN5212DW1T1G provides 250mW. These parts are suitable only for applications requiring dual NPN functionality and cannot replace the PUMD16/ZLX in circuits requiring PNP transistor operation.

Recommended Selection Path:

For direct functional replacement with identical transistor configuration, select DCX124EU-7-F or NSVMUN5334DW1T1G. For automotive applications, DCX124EUQ-7-F is the appropriate choice. For applications requiring dual NPN operation only, DDC124EU-7-F or MUN5212DW1T1G are acceptable alternatives.

Frequently Asked Questions (FAQ)

Q: Can the DCX124EU-7-F directly replace the PUMD16/ZLX without circuit modification?

A: The DCX124EU-7-F maintains the same transistor configuration (1 NPN, 1 PNP), voltage rating (50V), and current rating (100mA). However, the base resistor values differ (22kOhms vs. 47kOhms), and power dissipation is reduced (200mW vs. 300mW). Circuit evaluation is required to confirm compatibility with the specific application.

Q: What is the difference between DCX124EU-7-F and DCX124EUQ-7-F?

A: Both parts are electrically equivalent with identical voltage, current, and package specifications. The DCX124EUQ-7-F carries automotive qualification (AEC-Q101) and is graded for automotive applications. Selection depends on application requirements.

Q: Why are DDC124EU-7-F and MUN5212DW1T1G listed as substitutes if they have a different transistor configuration?

A: These parts are listed as partial substitutes because they share the same voltage rating (50V), current rating (100mA), package type (SOT-363), and compliance certifications. However, their dual NPN configuration (2 NPN) differs from the PUMD16/ZLX (1 NPN, 1 PNP). They are suitable only for applications requiring dual NPN functionality.

Q: Are all substitute parts available in the same package?

A: All substitute parts are available in 6-TSSOP or SOT-363 surface mount packages, which are mechanically and electrically compatible. The NSVMUN5334DW1T1G and MUN5212DW1T1G are supplied in SC-88/SC70-6/SOT-363 variants, which are equivalent to the 6-TSSOP package.

Q: What is the significance of the resistor value differences between the PUMD16/ZLX and substitute parts?

A: The PUMD16/ZLX uses 47kOhms base and emitter-base resistors, while most substitutes use 22kOhms. These internal resistor networks affect transistor switching characteristics and bias conditions. The NSVMUN5334DW1T1G uses 22kOhms base and 47kOhms emitter-base, providing a closer match to the original part's emitter-base resistor specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are RoHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the PUMD16/ZLX.

Q: Which substitute part has the highest power dissipation rating?

A: The NSVMUN5334DW1T1G and MUN5212DW1T1G both offer 250mW power dissipation, which is lower than the PUMD16/ZLX (300mW) but higher than the Diodes Incorporated DCX124 series (200mW).