ZXTP2008GTA Equivalent & Substitute Parts

Part Overview

The ZXTP2008GTA is a PNP bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-223-3 package. This component operates at a maximum collector current of 5.5 A with a collector-emitter breakdown voltage of 30 V and a maximum power dissipation of 3 W. The device is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when design requirements permit variations in specific electrical parameters while maintaining functional compatibility within the same package form factor and general application class. Substitutes are necessary when primary components face supply constraints, inventory limitations, or when design specifications allow for parameter flexibility.

Key Parameters

Parameter	ZXTP2008GTA	Unit
Transistor Type	PNP	—
Current - Collector (Ic) Max	5.5	A
Voltage - Collector Emitter Breakdown (Max)	30	V
Vce Saturation (Max) @ Ib, Ic	210 mV @ 500 mA, 5.5 A	—
Current - Collector Cutoff (Max)	20	nA
DC Current Gain (hFE) Min @ Ic, Vce	100 @ 1 A, 1 V	—
Power - Max	3	W
Frequency - Transition	110	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-223-3	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the ZXTP2008GTA are categorized based on electrical parameter compatibility and packaging equivalence. The substitution logic is structured around the following critical parameters:

Primary Substitution Criteria:

Transistor Type: PNP (required match)
Package Form Factor: SOT-223-3 or SOT-223 (surface mount compatibility)
Collector Current Rating: Minimum 5.5 A or higher
Collector-Emitter Breakdown Voltage: Minimum 30 V or higher
Maximum Power Dissipation: Minimum 3 W or higher
Operating Temperature Range: Minimum -55°C to 150°C
RoHS3 Compliance: Required

Substitution Categories:

Direct Manufacturer Equivalents maintain identical electrical specifications with variations only in packaging format or minor parameter tolerances. These parts are sourced from the same manufacturer (Diodes Incorporated) and provide pin-for-pin compatibility.

Parametric Equivalents meet or exceed all critical electrical parameters but may originate from different manufacturers. These parts satisfy functional requirements while allowing for component sourcing flexibility.

Automotive-Grade Alternatives include manufacturer-recommended substitutes from Nexperia USA Inc. that meet AEC-Q100 qualification standards. These parts may have slightly reduced current or power ratings but maintain voltage and frequency specifications suitable for automotive and industrial applications.

Higher Voltage Alternatives provide increased collector-emitter breakdown voltage (40 V or 60 V) for applications requiring additional voltage margin. These parts are suitable when design specifications permit voltage derating.

Parameter Comparison

Part Number	Manufacturer	Ic Max (A)	Vce Breakdown (V)	Vce Sat (mV)	Power Max (W)	Frequency (MHz)	Package	Packaging Type
ZXTP2008GTA	Diodes Incorporated	5.5	30	210 @ 500mA, 5.5A	3	110	SOT-223-3	Tape & Reel
FZT949TA	Diodes Incorporated	5.5	30	440 @ 500mA, 5.5A	3	100	SOT-223-3	Tape & Reel
ZX5T949GTA	Diodes Incorporated	5.5	30	210 @ 500mA, 5.5A	3	110	SOT-223-3	Cut Tape
PBSS303PZ,135	Nexperia USA Inc.	5.3	30	265 @ 265mA, 5.3A	2	130	SOT-223	Tape & Reel
PBSS4032PZ,115	Nexperia USA Inc.	4.4	30	400 @ 200mA, 4A	2	130	SOT-223	Tape & Reel
PBSS5540Z,115	Nexperia USA Inc.	5	40	160 @ 200mA, 2A	2	120	SOT-223	Tape & Reel
PBSS5540ZF	Nexperia USA Inc.	5	40	160 @ 200mA, 2A	2	120	SOT-223	Cut Tape & Digi-Reel
PZT2907AT1G	onsemi	0.6	60	1.6V @ 50mA, 500mA	1.5	200	SOT-223	Cut Tape & Digi-Reel
PZT2907AT3G	onsemi	0.6	60	1.6V @ 50mA, 500mA	1.5	200	SOT-223	Tape & Reel

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (Recommended for Pin-for-Pin Replacement)

The ZX5T949GTA is a parametric equivalent to the ZXTP2008GTA, offering identical electrical specifications including 5.5 A collector current, 30 V breakdown voltage, 210 mV saturation voltage, and 110 MHz transition frequency. The primary difference is packaging format (Cut Tape versus Tape & Reel). This part is suitable for direct substitution when packaging format is compatible with assembly processes.

The FZT949TA is a direct manufacturer equivalent from Diodes Incorporated with identical current and voltage ratings. The saturation voltage specification is higher (440 mV versus 210 mV), which may impact switching performance in saturation-mode applications. Transition frequency is 100 MHz versus 110 MHz. This part is suitable for applications where saturation voltage tolerance permits the higher specification.

Tier 2 - Automotive-Grade Alternatives (AEC-Q100 Qualified)

The PBSS303PZ,135 from Nexperia USA Inc. meets AEC-Q100 automotive qualification standards. Collector current is 5.3 A (within 96% of ZXTP2008GTA rating), and breakdown voltage is 30 V. Power dissipation is reduced to 2 W. Transition frequency is 130 MHz, exceeding the primary part. This part is suitable for automotive applications where AEC-Q100 qualification is required and power dissipation headroom is available.

The PBSS4032PZ,115 is also AEC-Q100 qualified with 4.4 A collector current (80% of primary part rating) and 30 V breakdown voltage. Power dissipation is 2 W. This part is suitable for applications where collector current requirements do not exceed 4.4 A and automotive qualification is mandatory.

Tier 3 - Higher Voltage Alternatives

The PBSS5540Z,115 and PBSS5540ZF provide 40 V collector-emitter breakdown voltage (33% higher than primary part) with 5 A collector current. Power dissipation is 2 W. These parts are suitable for applications requiring increased voltage margin or operating in higher voltage environments while maintaining similar current capacity.

Tier 4 - Not Recommended for Direct Substitution

The PZT2907AT1G and PZT2907AT3G from onsemi are not suitable substitutes for the ZXTP2008GTA. Collector current is 600 mA (approximately 11% of primary part rating), and maximum power dissipation is 1.5 W. These parts are designed for low-current signal-level applications and do not meet the current and power requirements of the ZXTP2008GTA.

Compliance and Certification Status

All recommended substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the primary part. Automotive-grade alternatives (PBSS series) include AEC-Q100 qualification, suitable for automotive and industrial applications requiring enhanced reliability standards.

Frequently Asked Questions (FAQ)

Q: Can the FZT949TA be used as a direct replacement for the ZXTP2008GTA?

A: The FZT949TA is a direct manufacturer equivalent with identical current and voltage ratings. However, the saturation voltage is specified at 440 mV compared to 210 mV for the ZXTP2008GTA. In applications where the transistor operates in saturation mode, this higher saturation voltage may result in increased power dissipation and heat generation. Verify that circuit design tolerates this parameter difference before substitution.

Q: What is the difference between the ZXTP2008GTA and ZX5T949GTA?

A: The ZX5T949GTA is a parametric equivalent with identical electrical specifications. The primary difference is packaging format: ZXTP2008GTA is supplied in Tape & Reel (TR) format, while ZX5T949GTA is supplied in Cut Tape (CT) format. Both parts are suitable for surface mount assembly and maintain the same SOT-223-3 package footprint. Selection depends on assembly equipment compatibility and tape format requirements.

Q: Are the Nexperia PBSS series parts suitable for high-current applications?

A: The PBSS303PZ,135 supports 5.3 A collector current, which is within 96% of the ZXTP2008GTA rating and suitable for high-current applications. The PBSS4032PZ,115 supports 4.4 A, which is adequate for applications not exceeding this current level. Both parts are AEC-Q100 qualified for automotive use. However, power dissipation is reduced to 2 W compared to 3 W for the primary part, requiring verification that thermal design accommodates this limitation.

Q: Can the PBSS5540Z,115 be used in place of the ZXTP2008GTA?

A: The PBSS5540Z,115 has a higher collector-emitter breakdown voltage (40 V versus 30 V) and slightly lower collector current (5 A versus 5.5 A). Power dissipation is reduced to 2 W. This part is suitable for applications where the higher voltage rating provides design margin and collector current requirements do not exceed 5 A. Verify that thermal design accommodates the reduced power dissipation specification.

Q: Why are the PZT2907 series parts listed but not recommended?

A: The PZT2907AT1G and PZT2907AT3G are low-current signal-level transistors with maximum collector current of 600 mA. The ZXTP2008GTA is rated for 5.5 A collector current. These parts are fundamentally different device classes and cannot substitute for high-current applications. They are included in the reference for informational purposes only.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT), and Cut Tape with Digi-Reel formats. The ZXTP2008GTA is supplied in Tape & Reel format. The ZX5T949GTA is available in Cut Tape format. The PBSS5540ZF is available in Cut Tape & Digi-Reel format. Selection depends on assembly equipment compatibility and procurement requirements. All parts maintain the same SOT-223-3 or SOT-223 package footprint for surface mount assembly.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the primary ZXTP2008GTA part. This ensures compatibility with environmental and regulatory requirements for commercial, industrial, and automotive applications.

Q: What is the significance of AEC-Q100 qualification for the PBSS series parts?

A: AEC-Q100 qualification indicates that the part meets automotive industry reliability and quality standards established by the Automotive Electronics Council. Parts with this qualification (PBSS303PZ,135 and PBSS4032PZ,115) are suitable for automotive applications where enhanced reliability and traceability are required. Non-automotive applications may not require this qualification.

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