SS9014DBU Equivalent & Substitute Parts

Part Overview

The SS9014DBU is an NPN bipolar junction transistor manufactured by onsemi, rated for 45 V collector-emitter breakdown voltage and 100 mA maximum collector current. This device is packaged in a TO-92-3 through-hole configuration and is designed for general-purpose switching and amplification applications. The SS9014DBU is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and production continuity. Substitute parts must maintain electrical compatibility across critical parameters including voltage rating, current capacity, and thermal characteristics while accommodating the through-hole TO-92-3 package standard.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	45	V
Current - Collector (Ic) (Max)	100	mA
Power - Max	450	mW
Frequency - Transition	270	MHz
Operating Temperature (Max)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-92-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SS9014DBU is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute part must have a collector-emitter breakdown voltage rating equal to or greater than 45 V to ensure safe operation in circuits designed for the SS9014DBU.

Current Rating: The substitute part must support a maximum collector current of 100 mA or greater to handle the same load conditions.

Package Type: The substitute part must use the TO-92-3 through-hole package to ensure mechanical and electrical compatibility with existing printed circuit board layouts and socket configurations.

Transistor Polarity: The substitute part must be NPN type to maintain circuit functionality and biasing requirements.

Compliance Standards: The substitute part must meet ROHS3 compliance and maintain REACH unaffected status to satisfy regulatory requirements for the target application environment.

The 2N5232A PBFREE meets these substitution criteria across all specified parameters.

Parameter Comparison

Parameter	SS9014DBU	2N5232A PBFREE	Unit
Transistor Type	NPN	NPN	—
Voltage - Collector Emitter Breakdown (Max)	45	50	V
Current - Collector (Ic) (Max)	100	100	mA
Vce Saturation (Max)	300 mV @ 5mA, 100mA	125 mV @ 1mA, 10mA	V
Current - Collector Cutoff (Max)	500 nA	30 nA	nA
DC Current Gain (hFE) (Min)	400 @ 1mA, 5V	250 @ 2mA, 5V	—
Power - Max	450	625	mW
Operating Temperature (Max)	150	150	°C
Mounting Type	Through Hole	Through Hole	—
Package / Case	TO-92-3	TO-92-3	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

The 2N5232A PBFREE is a direct substitute for the obsolete SS9014DBU based on the following engineering criteria:

Voltage Compatibility: The 2N5232A PBFREE provides a 50 V collector-emitter breakdown rating, which exceeds the 45 V requirement of the SS9014DBU. This higher voltage rating ensures safe operation in all circuits designed for the original part.

Current Capacity: Both devices support 100 mA maximum collector current, providing identical current handling capability.

Package Compatibility: Both devices use the TO-92-3 through-hole package, ensuring direct mechanical and electrical compatibility with existing circuit board designs without layout modifications.

Regulatory Compliance: The 2N5232A PBFREE maintains ROHS3 compliance and REACH unaffected status, satisfying the same regulatory requirements as the SS9014DBU.

Product Status: The 2N5232A PBFREE is classified as active, ensuring long-term availability and supply chain continuity compared to the obsolete SS9014DBU.

Thermal Performance: The 2N5232A PBFREE supports the same maximum operating temperature of 150°C, maintaining thermal design margins.

Frequently Asked Questions (FAQ)

Q: Can the 2N5232A PBFREE be used as a direct replacement for the SS9014DBU without circuit modifications?

A: Yes. The 2N5232A PBFREE meets all critical electrical parameters and uses the identical TO-92-3 package. No circuit modifications are required for substitution.

Q: What is the significance of the higher voltage rating on the 2N5232A PBFREE?

A: The 2N5232A PBFREE provides a 50 V collector-emitter breakdown rating compared to 45 V for the SS9014DBU. This higher rating provides additional safety margin and does not negatively impact circuit operation. Circuits designed for 45 V operation function correctly with a 50 V rated device.

Q: Are there differences in saturation voltage between these devices?

A: Yes. The 2N5232A PBFREE exhibits lower saturation voltage (125 mV) compared to the SS9014DBU (300 mV) at specified test conditions. This difference may result in slightly improved switching efficiency in saturation-mode applications, but does not prevent substitution.

Q: Does the DC current gain difference affect substitution suitability?

A: The 2N5232A PBFREE specifies a minimum DC current gain of 250 compared to 400 for the SS9014DBU, measured at different test conditions. Both values are sufficient for general-purpose switching and amplification applications. Circuit designs should not rely on specific gain values without verification against datasheet specifications.

Q: Are both devices available in the same packaging format?

A: Yes. Both the SS9014DBU and 2N5232A PBFREE use the TO-92-3 through-hole package, ensuring identical physical dimensions and pin configurations for direct board-level substitution.

Q: What compliance certifications apply to the 2N5232A PBFREE?

A: The 2N5232A PBFREE is ROHS3 compliant and REACH unaffected, matching the regulatory status of the SS9014DBU.

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