PDTA143XM,315 Equivalent & Substitute Parts

Part Overview

The PDTA143XM,315 is a pre-biased PNP bipolar junction transistor manufactured by Nexperia USA Inc. in SOT-883 surface mount packaging. This component integrates internal base and emitter-base resistors, enabling direct interface with logic-level signals without external biasing networks. The device is rated for 50 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 250 mW power dissipation. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring pre-biased PNP transistor functionality within specified electrical and mechanical parameters.

Substiute Parts

PDTA143XM,315

Nexperia USA Inc.In Stock: 825PDTA143XM,315 Datasheet

Current PartRFQ

DDTA114YLP-7

Diodes IncorporatedIn Stock: 35196DDTA114YLP-7 Datasheet

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DDTA144ELP-7

Diodes IncorporatedIn Stock: 18498DDTA144ELP-7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PDTA143XM,315 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Transistor Type: PNP - Pre-Biased
• Voltage - Collector Emitter Breakdown (Max): 50 V
• Current - Collector (Ic) (Max): 100 mA or greater
• Power - Max: 250 mW or greater
• Mounting Type: Surface Mount
• RoHS3 Compliance
• Product Status: Active

Substitution Logic: The PDTA143XM,315 can be substituted with parts that maintain or exceed the specified voltage and current ratings while preserving pre-biased PNP topology. Internal resistor values (R1 and R2) may differ between substitutes, as these determine biasing characteristics and switching behavior rather than absolute compatibility. Packages may vary (SOT-883 vs. 3-UFDFN) provided surface mount mounting is maintained. Transition frequency, when specified in substitute parts, represents an additional capability and does not restrict substitution.

Parameter Comparison

Engineering Selection Recommendations

DDTA114YLP-7 (Diodes Incorporated): The DDTA114YLP-7 maintains electrical equivalence to the PDTA143XM,315 across voltage, current, and power ratings. Both devices support 50 V breakdown voltage and 100 mA maximum collector current within 250 mW power envelope. The DDTA114YLP-7 exhibits superior collector cutoff current (500 nA vs. 1 µA) and higher DC current gain (80 vs. 50 @ specified conditions). Internal resistor values differ (R1: 10 kOhms vs. 4.7 kOhms; R2: 47 kOhms vs. 10 kOhms), resulting in modified biasing behavior. Package transition from SOT-883 to 3-UFDFN requires PCB layout adjustment. RoHS3 compliance and unlimited MSL rating are maintained. Active product status ensures continued availability.

DDTA144ELP-7 (Diodes Incorporated): The DDTA144ELP-7 exceeds the PDTA143XM,315 specification in maximum collector current (200 mA vs. 100 mA) while maintaining 50 V breakdown voltage and 250 mW power rating. This device provides enhanced current handling capacity for applications requiring higher collector current margins. DC current gain is significantly higher (250 @ 300mA, 5V), and collector cutoff current is lower (100 nA vs. 1 µA). Internal resistor configuration (R1 and R2 both 47 kOhms) differs substantially from the main part, affecting switching characteristics. The DDTA144ELP-7 carries AEC-Q101 automotive qualification, indicating suitability for automotive-grade applications. Package format is 3-UFDFN. RoHS3 compliance and unlimited MSL rating apply. Active product status is confirmed.

Selection Basis: All substitute parts maintain Active product status and RoHS3 compliance, ensuring regulatory alignment and supply continuity. Voltage and power ratings are equivalent or superior. Current ratings meet or exceed the main part specification. Differences in internal resistor values and DC current gain reflect design variations between manufacturers and must be evaluated against specific application biasing requirements. Package differences require PCB redesign consideration.

Frequently Asked Questions (FAQ)

Q: Can DDTA114YLP-7 be used as a direct replacement for PDTA143XM,315 without circuit modification?

A: The DDTA114YLP-7 maintains equivalent voltage (50 V), current (100 mA), and power (250 mW) ratings. However, internal resistor values differ (R1: 10 kOhms vs. 4.7 kOhms; R2: 47 kOhms vs. 10 kOhms), which affects biasing behavior and switching response. Package format differs (3-UFDFN vs. SOT-883), requiring PCB layout modification. Circuit validation is necessary to confirm functional equivalence in the target application.

Q: What is the primary difference between DDTA114YLP-7 and DDTA144ELP-7?

A: The DDTA144ELP-7 supports maximum collector current of 200 mA compared to 100 mA for DDTA114YLP-7, providing higher current capacity. The DDTA144ELP-7 carries AEC-Q101 automotive qualification. Internal resistor values differ between the two devices (DDTA114YLP-7: R1 10 kOhms, R2 47 kOhms; DDTA144ELP-7: R1 47 kOhms, R2 47 kOhms). DC current gain specifications differ significantly. Both maintain 50 V breakdown voltage and 250 mW power rating.

Q: Are package differences between SOT-883 and 3-UFDFN critical for substitution?

A: Package format differences require PCB footprint redesign and layout modification. SOT-883 and 3-UFDFN are distinct surface mount packages with different pin configurations and land patterns. Mechanical compatibility with existing PCB designs cannot be assumed. Layout changes are mandatory when transitioning between these package types.

Q: Do internal resistor value differences affect circuit performance?

A: Yes. Internal resistor values (R1 and R2) determine the biasing network characteristics and switching behavior of pre-biased transistors. The PDTA143XM,315 uses R1 4.7 kOhms and R2 10 kOhms, while substitutes employ different values. These differences alter turn-on/turn-off timing, base current requirements, and saturation characteristics. Application-specific validation is required to confirm functional compatibility.

Q: Is the DDTA144ELP-7 suitable for automotive applications?

A: The DDTA144ELP-7 carries AEC-Q101 automotive qualification, indicating compliance with automotive-grade reliability and testing standards. The PDTA143XM,315 and DDTA114YLP-7 do not specify automotive qualification. Selection of DDTA144ELP-7 for automotive applications is supported by its qualification status.

Q: What does collector cutoff current specification indicate?

A: Collector cutoff current (Icbo) represents the maximum leakage current flowing from collector to base when the transistor is in the off state. Lower values indicate better leakage performance. The PDTA143XM,315 specifies 1 µA maximum, while DDTA114YLP-7 specifies 500 nA and DDTA144ELP-7 specifies 100 nA. Lower cutoff current reduces standby power consumption and improves circuit performance in low-power applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The PDTA143XM,315, DDTA114YLP-7, and DDTA144ELP-7 are all RoHS3 compliant. All parts maintain unlimited moisture sensitivity level (MSL 1) rating. Regulatory compliance is equivalent across all listed parts.