PBLS4005D,115 Equivalent & Substitute Parts

Part Overview

The PBLS4005D,115 is a pre-biased bipolar transistor (BJT) manufactured by Nexperia USA Inc., combining 1 NPN pre-biased and 1 PNP transistor in a single 6-TSOP surface mount package. This integrated configuration is designed for applications requiring complementary transistor pairs with built-in base bias resistors, eliminating the need for external biasing networks.

The PBLS4005D,115 maintains Active product status with full availability. Substitute parts become necessary when addressing specific application constraints such as package form factor compatibility, voltage rating requirements, or supply chain considerations. The primary substitute identified is the EMF5XV6T5G from onsemi, which shares the same transistor configuration but operates under Obsolete product status.

Key Parameters

Parameter	PBLS4005D,115
Transistor Type	1 NPN Pre-Biased, 1 PNP
Current - Collector (Ic) (Max)	100mA (NPN), 700mA (PNP)
Voltage - Collector Emitter Breakdown (Max)	50V (NPN), 40V (PNP)
Resistor - Base (R1)	47kOhms
Resistor - Emitter Base (R2)	47kOhms
DC Current Gain (hFE) (Min)	80 @ 5mA, 5V (NPN) / 300 @ 100mA, 5V (PNP)
Vce Saturation (Max)	150mV @ 500µA, 10mA (NPN) / 310mV @ 100mA, 1A (PNP)
Current - Collector Cutoff (Max)	1µA (NPN), 100nA (PNP)
Frequency - Transition	150MHz
Power - Max	600mW
Package / Case	SC-74, SOT-457 (6-TSOP)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for pre-biased BJT pairs is determined by the following critical parameters:

Configuration Match: Both the main part and substitute must contain identical transistor type configurations (1 NPN pre-biased + 1 PNP).

Base Resistor Values: Internal bias resistors (R1 and R2) must be identical at 47kOhms to maintain equivalent biasing behavior.

Collector Current Ratings: The substitute must support the required maximum collector current for both transistor elements. Derating may be acceptable if the application operates below the substitute's maximum ratings.

Voltage Ratings: Collector-emitter breakdown voltages must meet or exceed application requirements for both NPN and PNP elements.

Package Compatibility: Surface mount packages must be compatible with the PCB layout and assembly process, though different package designations (SOT-457 vs. SOT-563) may require layout modifications.

Compliance Requirements: RoHS3 compliance and MSL rating must be maintained for manufacturing and environmental standards.

The EMF5XV6T5G qualifies as a substitute based on matching transistor configuration, identical base resistor values, and compatible voltage/current ratings within specified operating ranges, despite differences in package form factor and product status.

Parameter Comparison

Parameter	PBLS4005D,115	EMF5XV6T5G	Compatibility Notes
Transistor Type	1 NPN Pre-Biased, 1 PNP	1 NPN Pre-Biased, 1 PNP	Identical configuration
Current - Collector (Ic) (Max) - NPN	100mA	100mA	Matched
Current - Collector (Ic) (Max) - PNP	700mA	500mA	EMF5XV6T5G rated lower; verify application current requirements
Voltage - Collector Emitter Breakdown (Max) - NPN	50V	50V	Matched
Voltage - Collector Emitter Breakdown (Max) - PNP	40V	12V	EMF5XV6T5G rated significantly lower; application must operate below 12V
Resistor - Base (R1)	47kOhms	47kOhms	Identical
Resistor - Emitter Base (R2)	47kOhms	47kOhms	Identical
DC Current Gain (hFE) (Min) - NPN	80 @ 5mA, 5V	80 @ 5mA, 10V	Comparable; EMF5XV6T5G measured at higher voltage
DC Current Gain (hFE) (Min) - PNP	300 @ 100mA, 5V	270 @ 10mA, 2V	EMF5XV6T5G measured at lower current and voltage; gain characteristics differ
Vce Saturation (Max) - NPN	150mV @ 500µA, 10mA	250mV @ 300µA, 10mA	EMF5XV6T5G exhibits higher saturation voltage
Vce Saturation (Max) - PNP	310mV @ 100mA, 1A	250mV @ 10mA, 200mA	Measured at different operating points; not directly comparable
Current - Collector Cutoff (Max) - NPN	1µA	500nA	EMF5XV6T5G exhibits lower leakage
Current - Collector Cutoff (Max) - PNP	100nA	Not specified	EMF5XV6T5G specification incomplete
Frequency - Transition	150MHz	Not specified	EMF5XV6T5G specification not provided
Power - Max	600mW	500mW	EMF5XV6T5G rated lower; verify thermal requirements
Package / Case	SC-74, SOT-457 (6-TSOP)	SOT-563, SOT-666	Different package form factors; PCB layout modification required
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Matched compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Matched handling requirements
Product Status	Active	Obsolete	PBLS4005D,115 recommended for new designs

Engineering Selection Recommendations

Primary Selection: The PBLS4005D,115 is the recommended choice for all new designs and applications. This part maintains Active product status with confirmed availability of 951 pieces in stock, ensuring long-term supply chain reliability and manufacturing support from Nexperia USA Inc.

Substitute Consideration: The EMF5XV6T5G from onsemi may be selected only when specific application constraints necessitate the SOT-563 package form factor or when existing inventory of this part is available. This substitution is subject to the following conditions:

Voltage Rating Limitation: The EMF5XV6T5G PNP element is rated at 12V maximum collector-emitter breakdown voltage, compared to 40V for the PBLS4005D,115. Applications must operate with PNP collector-emitter voltages not exceeding 12V.
Current Rating Limitation: The EMF5XV6T5G PNP element is rated at 500mA maximum collector current, compared to 700mA for the PBLS4005D,115. Applications must operate with PNP collector currents not exceeding 500mA.
Power Dissipation Limitation: The EMF5XV6T5G is rated at 500mW maximum power dissipation, compared to 600mW for the PBLS4005D,115. Thermal design must account for this reduced power budget.
Product Status: The EMF5XV6T5G operates under Obsolete product status. This designation indicates that the manufacturer has discontinued active production and support. Use of this part should be limited to legacy system maintenance or when no alternative exists.
Compliance Verification: Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying standard manufacturing and environmental requirements.

Package Transition: If substituting from PBLS4005D,115 (6-TSOP/SOT-457) to EMF5XV6T5G (SOT-563), PCB layout modifications are required. The different package footprints necessitate design changes and assembly process validation.

Frequently Asked Questions (FAQ)

Q: Can the EMF5XV6T5G directly replace the PBLS4005D,115 without any modifications?

A: Direct replacement without modifications is not possible due to package form factor differences. The PBLS4005D,115 uses a 6-TSOP (SOT-457) package, while the EMF5XV6T5G uses SOT-563. PCB layout and footprint changes are required. Additionally, the EMF5XV6T5G has reduced voltage and current ratings that must be verified against application requirements.

Q: What are the critical voltage and current limitations when using EMF5XV6T5G as a substitute?

A: The EMF5XV6T5G PNP element is limited to 12V maximum collector-emitter breakdown voltage (versus 40V for PBLS4005D,115) and 500mA maximum collector current (versus 700mA for PBLS4005D,115). Applications must operate within these reduced ratings. The NPN element maintains 50V and 100mA ratings, matching the main part.

Q: Are the internal bias resistor values identical between these parts?

A: Yes. Both the PBLS4005D,115 and EMF5XV6T5G contain identical 47kOhm base resistors (R1) and 47kOhm emitter-base resistors (R2). This ensures equivalent biasing behavior when the voltage and current constraints are satisfied.

Q: Why is the PBLS4005D,115 recommended over the EMF5XV6T5G for new designs?

A: The PBLS4005D,115 maintains Active product status with confirmed manufacturing support and availability. The EMF5XV6T5G is classified as Obsolete, indicating discontinued production. For new designs, the Active part ensures long-term supply chain reliability, technical support, and manufacturing consistency.

Q: What package considerations must be addressed when transitioning between these parts?

A: The PBLS4005D,115 uses a 6-TSOP (SC-74, SOT-457) package, while the EMF5XV6T5G uses SOT-563 or SOT-666 packages. These are physically different form factors requiring new PCB footprints, layout modifications, and assembly process validation. Pin assignments and lead spacing differ between packages.

Q: Are both parts compliant with current environmental and manufacturing standards?

A: Yes. Both the PBLS4005D,115 and EMF5XV6T5G are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. Both parts are classified as EAR99 for export control purposes and are REACH Unaffected. Compliance requirements are satisfied for both options.

Q: How do the DC current gain characteristics compare between these parts?

A: The NPN elements show comparable gain characteristics (80 minimum at 5mA, 5V for PBLS4005D,115 versus 80 at 5mA, 10V for EMF5XV6T5G). The PNP elements differ more significantly: PBLS4005D,115 specifies 300 minimum at 100mA, 5V, while EMF5XV6T5G specifies 270 at 10mA, 2V. These measurements are taken at different operating points and reflect different device characteristics.

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

A: The PBLS4005D,115 NPN element exhibits 150mV saturation voltage at 500µA base current and 10mA collector current, while the EMF5XV6T5G shows 250mV at 300µA base current and 10mA collector current. The EMF5XV6T5G exhibits higher saturation voltage, which may affect switching speed and power dissipation in saturation-mode applications.

Q: Can the EMF5XV6T5G be used in high-frequency applications?

A: The PBLS4005D,115 specifies a 150MHz transition frequency, supporting high-frequency switching applications. The EMF5XV6T5G does not provide transition frequency specifications in the available data. Applications requiring confirmed high-frequency performance should use the PBLS4005D,115.

Q: What inventory considerations exist for these parts?

A: The PBLS4005D,115 has 951 pieces in stock with Active product status, ensuring ongoing availability. The EMF5XV6T5G has 17,300 pieces in stock but carries Obsolete product status, indicating no future production. While current inventory of EMF5XV6T5G is substantial, long-term availability cannot be assured.

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