DXT651Q-13 Equivalent & Substitute Parts

Part Overview

The DXT651Q-13 is an NPN bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-89-3 package. This transistor operates at a maximum collector current of 3 A and collector-emitter breakdown voltage of 60 V, with a transition frequency of 140 MHz and maximum power dissipation of 1 W. The device is qualified to AEC-Q101 automotive standards and carries Active product status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter ranges.

Substiute Parts

DXT651Q-13

Diodes IncorporatedIn Stock: 465179DXT651Q-13 Datasheet

Current PartRFQ

2SC5824T100Q

Rohm SemiconductorIn Stock: 744062SC5824T100Q Datasheet

MFR RecommendedRFQ

PBSS4360XX

Nexperia USA Inc.In Stock: 1669PBSS4360XX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DXT651Q-13 is permissible when the alternative part meets or exceeds the following critical electrical and mechanical parameters:

Mandatory Matching Criteria:

• Transistor Type: NPN
• Current - Collector (Ic) (Max): ≥ 3 A
• Voltage - Collector Emitter Breakdown (Max): ≥ 60 V
• Mounting Type: Surface Mount
• Package / Case: TO-243AA

Acceptable Parameter Variations:

• Power - Max: ≥ 1 W (higher values acceptable)
• Frequency - Transition: ≥ 140 MHz (higher values acceptable)
• Operating Temperature Range: Must encompass or exceed -55°C to 150°C
• RoHS Status: ROHS3 Compliant (required)
• Vce Saturation: Lower values indicate improved performance

The identified substitute parts satisfy these criteria while maintaining electrical equivalence and mechanical interchangeability within the TO-243AA package footprint.

Parameter Comparison

Engineering Selection Recommendations

DXT651Q-13 (Primary Part) The DXT651Q-13 remains the specified component for applications requiring full automotive qualification (AEC-Q101) and the complete operating temperature range of -55°C to 150°C. This part is Active and maintains the original design intent with established supply availability.

2SC5824T100Q (Rohm Semiconductor) The 2SC5824T100Q provides electrical equivalence with enhanced performance characteristics: higher transition frequency (200 MHz), increased power dissipation capability (2 W), and improved Vce saturation (500 mV). This substitute is suitable for applications where higher frequency response or thermal margin is beneficial. Note that automotive qualification and full temperature range specifications are not provided for this part.

PBSS4360XX (Nexperia USA Inc.) The PBSS4360XX maintains automotive qualification (AEC-Q101) and the full operating temperature range (-55°C to 150°C), providing direct functional equivalence to the DXT651Q-13. This part exhibits superior Vce saturation performance (400 mV) and increased power dissipation (1.35 W). The transition frequency is lower (75 MHz), which is acceptable for applications not requiring the full 140 MHz bandwidth of the primary part.

Frequently Asked Questions (FAQ)

Q: Can the 2SC5824T100Q be used as a direct replacement for the DXT651Q-13 in automotive applications?

A: The 2SC5824T100Q meets the core electrical parameters (3 A, 60 V, NPN, TO-243AA package) and is ROHS3 compliant. However, automotive qualification (AEC-Q101) and the complete operating temperature range (-55°C minimum) are not specified for this part. Use in automotive applications requires design review and validation against specific application requirements.

Q: What is the primary difference between the PBSS4360XX and the DXT651Q-13?

A: Both parts maintain identical maximum ratings (3 A, 60 V), automotive qualification (AEC-Q101), and operating temperature range (-55°C to 150°C). The PBSS4360XX provides superior saturation voltage performance (400 mV versus 600 mV) and higher power dissipation capability (1.35 W versus 1 W). The transition frequency is lower (75 MHz versus 140 MHz), which does not impact applications operating below this threshold.

Q: Are all three parts mechanically interchangeable?

A: All three parts use the TO-243AA package case and surface mount technology, enabling mechanical interchangeability on the PCB. However, supplier device packages differ (SOT-89-3, MPT3, and SOT-89 respectively), which may affect tape and reel specifications and handling during assembly.

Q: Which substitute part should be selected for maximum performance headroom?

A: The 2SC5824T100Q provides the highest transition frequency (200 MHz) and power dissipation (2 W), offering the greatest performance margin. Selection depends on whether these enhanced characteristics provide value for the specific application and whether the absence of specified automotive qualification is acceptable.

Q: Is the PBSS4360XX suitable for direct substitution in existing designs?

A: Yes. The PBSS4360XX maintains all critical specifications of the DXT651Q-13, including automotive qualification, temperature range, and electrical ratings. The improved saturation voltage and power dissipation represent performance enhancements with no negative impact on existing circuit designs.

Q: What is the significance of the different Vce saturation specifications?

A: Vce saturation indicates the voltage drop across the transistor in the saturated (fully conducting) state. Lower values (PBSS4360XX at 400 mV) result in reduced power dissipation and improved efficiency. The DXT651Q-13 specifies 600 mV, while the 2SC5824T100Q specifies 500 mV. All values are within acceptable ranges for typical switching applications.

Q: Can the PBSS4360XX replace the DXT651Q-13 in high-frequency applications?

A: The PBSS4360XX has a transition frequency of 75 MHz, which is lower than the DXT651Q-13 (140 MHz). For applications requiring operation above 75 MHz, the PBSS4360XX may not be suitable. The 2SC5824T100Q, with 200 MHz transition frequency, is better suited for high-frequency requirements.