PBLS1504Y,115 Pre-Biased Bipolar Transistor Equivalent & Substitute Parts

Part Overview

The PBLS1504Y,115 is an active pre-biased bipolar transistor (BJT) manufactured by Nexperia USA Inc. in a 6-TSSOP surface mount package. This component integrates 1 NPN pre-biased transistor and 1 PNP transistor with internal base and emitter-base resistors, designed for applications requiring compact dual-transistor solutions with integrated biasing networks. The part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1), making it suitable for standard manufacturing environments. Equivalent and substitute parts are necessary when addressing supply chain constraints, inventory availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

PBLS1504Y,115

Nexperia USA Inc.In Stock: 909PBLS1504Y,115 Datasheet

Current PartRFQ

DCX114YU-7-F

Diodes IncorporatedIn Stock: 125161DCX114YU-7-F Datasheet

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DCX144EU-7-F

Diodes IncorporatedIn Stock: 17263DCX144EU-7-F Datasheet

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UMD12NTR

Rohm SemiconductorIn Stock: 93322UMD12NTR Datasheet

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UMD9NTR

Rohm SemiconductorIn Stock: 29244UMD9NTR Datasheet

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UMF28NTR

Rohm SemiconductorIn Stock: 36437UMF28NTR Datasheet

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UMF5NTR

Rohm SemiconductorIn Stock: 19074UMF5NTR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PBLS1504Y,115 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Transistor configuration: 1 NPN pre-biased and 1 PNP transistor pair
• Package type: 6-TSSOP / SOT-363 surface mount
• Collector current rating: minimum 100mA for NPN, minimum 500mA for PNP (or lower if application permits)
• Collector-emitter breakdown voltage: minimum 50V for NPN, minimum 15V for PNP (or lower if application permits)
• Internal base resistor (R1) and emitter-base resistor (R2) values
• Maximum power dissipation: 300mW
• Transition frequency: 280MHz
• RoHS3 compliance and MSL 1 rating

Substitution Logic: Parts are grouped as direct substitutes when they maintain the dual NPN/PNP pre-biased configuration in compatible packages with electrical ratings that meet or exceed the PBLS1504Y,115 specifications. Variations in internal resistor values, transition frequency, and power ratings are acceptable provided they do not reduce circuit performance below application requirements. All substitute parts listed are active products with ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance with MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

DCX114YU-7-F and DCX144EU-7-F (Diodes Incorporated): These parts provide 50V collector-emitter breakdown voltage and 100mA maximum collector current, meeting the NPN specifications of the PBLS1504Y,115. Both are packaged in SOT-363 and carry 200mW maximum power dissipation. DCX114YU-7-F features 10kOhms base resistor and 47kOhms emitter-base resistor, while DCX144EU-7-F uses 47kOhms for both resistors. Transition frequency is 250MHz, slightly lower than the primary part. These are suitable for applications where the reduced power rating and lower transition frequency do not constrain performance.

UMD12NTR and UMD9NTR (Rohm Semiconductor): Both parts provide 50V collector-emitter breakdown voltage and 100mA maximum collector current in UMT6 package. Maximum power dissipation is 150mW. UMD12NTR uses 47kOhms for both base and emitter-base resistors, while UMD9NTR uses 10kOhms base resistor and 47kOhms emitter-base resistor. Transition frequency is 250MHz. These parts are suitable for lower power applications.

UMF28NTR (Rohm Semiconductor): This part maintains the 1 NPN pre-biased and 1 PNP configuration with 50V collector-emitter breakdown voltage. NPN collector current is 100mA and PNP collector current is 150mA. Base resistor is 22kOhms and emitter-base resistor is 47kOhms, closely matching the primary part's biasing network. Maximum power dissipation is 150mW with transition frequencies of 250MHz and 140MHz. This part is suitable for applications requiring matched biasing characteristics.

UMF5NTR (Rohm Semiconductor): This part provides 50V collector-emitter breakdown voltage for NPN and 12V for PNP, with 100mA and 500mA maximum collector currents respectively, matching the primary part's current ratings. Both base and emitter-base resistors are 47kOhms. Transition frequencies are 250MHz and 260MHz. Maximum power dissipation is 150mW. This part is suitable for applications requiring high PNP collector current capability.

Frequently Asked Questions (FAQ)

Q: Can DCX114YU-7-F or DCX144EU-7-F be used as direct replacements for PBLS1504Y,115?

A: These parts are electrically compatible substitutes for applications where 200mW power dissipation and 250MHz transition frequency are acceptable. Both maintain the dual NPN/PNP pre-biased configuration in SOT-363 package with 50V collector-emitter breakdown voltage. Internal resistor values differ, which may affect biasing characteristics in specific circuit topologies. Verify that the application circuit tolerates the different resistor network before substitution.

Q: What is the difference between UMD12NTR and UMD9NTR?

A: Both parts are identical except for internal resistor values. UMD12NTR uses 47kOhms for both base resistor (R1) and emitter-base resistor (R2). UMD9NTR uses 10kOhms for base resistor and 47kOhms for emitter-base resistor. Selection depends on the required biasing network for the application circuit.

Q: Why does UMF5NTR have different collector-emitter breakdown voltages for NPN and PNP?

A: The PBLS1504Y,115 and UMF5NTR both feature asymmetric breakdown voltage ratings: 50V for the NPN transistor and lower voltage (15V for PBLS1504Y,115; 12V for UMF5NTR) for the PNP transistor. This is a standard characteristic of pre-biased dual transistor designs and reflects the different voltage requirements of NPN and PNP stages in typical applications.

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

A: All substitute parts are available in 6-TSSOP / SOT-363 surface mount packages, maintaining mechanical compatibility with the PBLS1504Y,115. Diodes Incorporated parts (DCX114YU-7-F, DCX144EU-7-F) use SOT-363 supplier device package designation. Rohm Semiconductor parts (UMD12NTR, UMD9NTR, UMF28NTR, UMF5NTR) use UMT6 supplier device package designation. Both designations refer to the same 6-pin surface mount form factor.

Q: What is the significance of the 280MHz transition frequency in PBLS1504Y,115 compared to 250MHz in most substitutes?

A: The PBLS1504Y,115 operates at 280MHz transition frequency, which is higher than the 250MHz specification of most substitute parts. For applications operating below 250MHz, this difference is not significant. For high-frequency applications approaching or exceeding 250MHz, the primary part may provide superior performance. UMF5NTR offers 260MHz transition frequency for the PNP stage, providing closer performance matching.

Q: Can UMF28NTR be used when the application requires matched base and emitter-base resistor values?

A: UMF28NTR uses 22kOhms base resistor and 47kOhms emitter-base resistor, which differs from the PBLS1504Y,115 specification of 22kOhms for both resistors. While the base resistor matches, the emitter-base resistor does not. For applications requiring identical resistor values, UMF28NTR is not a direct substitute. UMF5NTR uses 47kOhms for both resistors, also differing from the primary part.

Q: What packaging format differences exist between substitute parts?

A: PBLS1504Y,115 is supplied in Tape & Reel (TR) format. DCX114YU-7-F and DCX144EU-7-F are supplied in Tape & Reel (TR) format. UMD12NTR, UMD9NTR, UMF28NTR, and UMF5NTR are supplied in Cut Tape (CT) & Digi-Reel® format. Both formats are standard surface mount packaging; selection depends on manufacturing equipment and volume requirements.

Q: Are all substitute parts ROHS3 compliant and MSL 1 rated?

A: Yes. All substitute parts listed carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level rating, matching the environmental and regulatory compliance of the PBLS1504Y,115. All parts are active products suitable for current design implementations.