ZXMP2120G4TA P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The ZXMP2120G4TA is a P-Channel MOSFET manufactured by Diodes Incorporated, rated for 200V drain-to-source voltage with 200mA continuous drain current in a surface mount SOT-223-3 package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges while meeting current product availability and compliance requirements.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	200	V
Continuous Drain Current (Id) @ 25°C	200	mA
Drive Voltage (Max Rds On)	10	V
Rds On (Max) @ 150mA, 10V	25	Ohm
Vgs(th) (Max) @ 1mA	3.5	V
Power Dissipation (Max)	2	W
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-223-3	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the ZXMP2120G4TA is determined by the following critical parameters:

Primary Substitution Criteria:

FET Type: P-Channel (required match)
Package Type: SOT-223-3 (required match for PCB compatibility)
Mounting Type: Surface Mount (required match)
Drain to Source Voltage (Vdss): Minimum 200V (equal or greater)
Continuous Drain Current (Id): Minimum 200mA (equal or greater)
Drive Voltage: 10V (standard gate drive voltage)
Operating Temperature Range: Minimum -55°C to 150°C (equal or greater)

Compliance Criteria:

RoHS3 Compliance (required)
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must satisfy all primary criteria. Variations in secondary parameters such as Rds On, Vgs(th), and Input Capacitance are acceptable provided they do not degrade circuit performance in the intended application.

Parameter Comparison

Parameter	ZXMP2120G4TA	ZVP2120GTA	BSP225,115
Manufacturer	Diodes Incorporated	Diodes Incorporated	Nexperia USA Inc.
Product Status	Obsolete	Active	Not For New Designs
FET Type	P-Channel	P-Channel	P-Channel
Vdss (V)	200	200	250
Id @ 25°C (mA)	200	200	225
Drive Voltage (V)	10	10	10
Rds On (Max) @ 10V (Ohm)	25 @ 150mA	25 @ 150mA	15 @ 200mA
Vgs(th) (Max) @ 1mA (V)	3.5	3.5	2.8
Power Dissipation (Max) (W)	2	2	1.5
Operating Temperature (°C)	-55 to 150	-55 to 150	—
Package	SOT-223-3	SOT-223-3	SOT-223
RoHS3 Compliant	Yes	Yes	Yes
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

ZVP2120GTA (Diodes Incorporated) — Primary Substitute

The ZVP2120GTA is the recommended substitute for the obsolete ZXMP2120G4TA. This part maintains identical electrical specifications across all critical parameters: 200V Vdss, 200mA Id, 25Ohm Rds On, and 3.5V Vgs(th). The ZVP2120GTA is classified as Active product status, ensuring long-term availability and supply chain continuity. Both parts share the same base product number (ZVP2120 vs. ZXMP2120) and are manufactured by the same supplier, confirming functional equivalence. RoHS3 compliance and MSL 1 rating are maintained. The ZVP2120GTA is available in Tape & Reel packaging, suitable for automated assembly processes.

BSP225,115 (Nexperia USA Inc.) — Secondary Substitute

The BSP225,115 is a functional substitute with enhanced electrical performance characteristics. This part exceeds the minimum requirements with 250V Vdss (vs. 200V), 225mA Id (vs. 200mA), and improved Rds On of 15Ohm at 200mA (vs. 25Ohm at 150mA). The lower gate threshold voltage of 2.8V (vs. 3.5V) provides faster switching response. However, the BSP225,115 is classified as Not For New Designs, indicating limited future availability. Power dissipation is reduced to 1.5W, which may require thermal design verification in applications requiring the full 2W rating. This part is suitable for replacement in existing designs where supply of the primary substitute is constrained.

Compliance and Regulatory Status

All substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. The ZVP2120GTA is REACH Unaffected, while the BSP225,115 is also REACH Unaffected, eliminating regulatory substitution barriers.

Frequently Asked Questions (FAQ)

Q: Can the ZVP2120GTA directly replace the ZXMP2120G4TA without circuit modification?

A: Yes. The ZVP2120GTA maintains identical electrical specifications for all critical parameters: Vdss, Id, Rds On, Vgs(th), and power dissipation. Both devices use the SOT-223-3 package with identical pinout. No circuit modification is required.

Q: What is the difference between the ZXMP2120G4TA and ZVP2120GTA?

A: The primary difference is product status. The ZXMP2120G4TA is obsolete, while the ZVP2120GTA is active. Electrically and mechanically, both parts are equivalent. The ZVP2120GTA is the current production equivalent.

Q: Is the BSP225,115 a suitable replacement for the ZXMP2120G4TA?

A: The BSP225,115 is functionally compatible with enhanced performance specifications. It exceeds minimum voltage and current ratings and provides lower on-resistance. However, it is classified as Not For New Designs, limiting future availability. Use this part only when the primary substitute is unavailable.

Q: Are there package compatibility concerns when substituting these parts?

A: The ZXMP2120G4TA and ZVP2120GTA both use SOT-223-3 packages with identical pinout and footprint. The BSP225,115 uses SOT-223 package, which is mechanically compatible with SOT-223-3 footprints. No PCB redesign is required.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution is determined by: FET type (P-Channel), Vdss (minimum 200V), Id (minimum 200mA), drive voltage (10V), package type (SOT-223-3), and operating temperature range (-55°C to 150°C). All substitute parts must meet or exceed these specifications.

Q: Does the ZVP2120GTA have the same RoHS and MSL ratings as the ZXMP2120G4TA?

A: Yes. Both parts are RoHS3 compliant with MSL 1 (Unlimited) rating. No compliance differences exist between these parts.

Q: Why is the BSP225,115 marked as Not For New Designs?

A: This designation indicates that the manufacturer is not recommending this part for new circuit designs. While it remains functionally suitable for replacement applications, long-term availability cannot be guaranteed. The ZVP2120GTA is the preferred choice for new designs and ongoing production.

Q: Can I use the BSP225,115 in high-temperature applications?

A: The BSP225,115 operating temperature range is not fully specified in the provided data. The ZXMP2120G4TA and ZVP2120GTA both support -55°C to 150°C. Verify the BSP225,115 temperature specifications with the manufacturer before use in temperature-critical applications.

Q: What is the difference in Rds On between these parts, and does it affect circuit performance?

A: The ZXMP2120G4TA and ZVP2120GTA both specify 25Ohm Rds On at 150mA, 10V. The BSP225,115 specifies 15Ohm at 200mA, 10V, representing lower on-resistance and reduced power dissipation. This improves efficiency but requires verification that the lower power dissipation (1.5W vs. 2W) is acceptable for the application.

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