BCX56-10-TP Equivalent & Substitute Parts

Part Overview

The BCX56-10-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-89 package. This component operates at 80 V collector-emitter breakdown voltage with a maximum collector current of 1 A and 500 mW power dissipation. The BCX56-10-TP is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value
Transistor Type	NPN
Collector Current (Ic) Max	1 A
Collector-Emitter Breakdown Voltage (Max)	80 V
Vce Saturation (Max)	500 mV @ 50 mA, 500 mA
DC Current Gain (hFE) Min	63 @ 150 mA, 2 V
Power Dissipation (Max)	500 mW
Transition Frequency	130 MHz
Operating Temperature (TJ)	150°C
Package / Case	TO-243AA (SOT-89)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BCX56-10-TP are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents share identical or functionally equivalent electrical specifications across all critical parameters: collector current (1 A), collector-emitter breakdown voltage (80 V), saturation voltage (500 mV @ 50 mA, 500 mA), DC current gain (63 @ 150 mA, 2 V), power dissipation (500 mW), and package type (TO-243AA / SOT-89). These parts differ primarily in product status, packaging format (tape & reel versus cut tape), or manufacturer, but maintain full functional interchangeability.

Similar Substitutes maintain the core electrical specifications (1 A collector current, 80 V breakdown voltage, SOT-89 package) but exhibit variations in one or more secondary parameters such as transition frequency, power dissipation, DC current gain, or saturation voltage characteristics. These parts are suitable for applications where the primary electrical requirements are met, though design verification may be necessary for frequency-dependent or power-sensitive circuits.

The substitution logic is based strictly on the following key parameters:

Collector current rating (1 A)
Collector-emitter breakdown voltage (80 V)
Saturation voltage characteristics (500 mV @ 50 mA, 500 mA)
Package type (TO-243AA / SOT-89)
Surface mount configuration

Parameter Comparison

Part Number	Manufacturer	Ic (Max)	Vce(BR) (Max)	Vce Sat (Max)	hFE Min	Power (Max)	Frequency	Product Status	Package
BCX56-10-TP	Micro Commercial Co	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	130 MHz	Obsolete	SOT-89
BCX56-16-TP	Micro Commercial Co	1 A	80 V	500 mV @ 50 mA, 500 mA	100 @ 150 mA, 2 V	500 mW	130 MHz	Active	SOT-89
BCX56-TP	Micro Commercial Co	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	130 MHz	Active	SOT-89
2SD1898T100Q	Rohm Semiconductor	1 A	80 V	400 mV @ 20 mA, 500 mA	120 @ 500 mA, 3 V	2 W	100 MHz	Not For New Designs	SOT-89
BCX56-16,147	Nexperia USA Inc.	1 A	80 V	500 mV @ 50 mA, 500 mA	100 @ 150 mA, 2 V	1.25 W	180 MHz	Active	SOT-89
BSR43,115	Nexperia USA Inc.	1 A	80 V	500 mV @ 50 mA, 500 mA	100 @ 100 mA, 5 V	1.35 W	100 MHz	Active	SOT-89
BCX56-10TF	Nexperia USA Inc.	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	155 MHz	Active	SOT-89
BCX56-10TX	Nexperia USA Inc.	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	155 MHz	Active	SOT-89
BCX56TF	Nexperia USA Inc.	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	155 MHz	Active	SOT-89
BCX56TX	Nexperia USA Inc.	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	155 MHz	Active	SOT-89
GSBCX56-16	Good-Ark Semiconductor	1 A	80 V	500 mV @ 50 mA, 500 mA	63 @ 150 mA, 2 V	500 mW	130 MHz	Active	SOT-89

Engineering Selection Recommendations

Primary Recommendation: BCX56-TP (Micro Commercial Co)

The BCX56-TP is the direct parametric equivalent to the BCX56-10-TP, maintaining identical electrical specifications including 1 A collector current, 80 V breakdown voltage, 63 hFE minimum at 150 mA / 2 V, and 500 mW power dissipation. This part is currently in active production status with 2930 pieces in stock, ensuring supply continuity. The BCX56-TP is ROHS3 compliant and carries REACH unaffected status, meeting current regulatory requirements.

Secondary Recommendation: BCX56-10TX or BCX56-10TF (Nexperia USA Inc.)

Both BCX56-10TX and BCX56-10TF are parametric equivalents with identical electrical specifications to the BCX56-10-TP. These parts feature automotive-grade qualification (AEC-Q101) and are actively produced. The BCX56-10TX offers the highest inventory availability (112,142 pieces) among all substitutes. The transition frequency is increased to 155 MHz compared to the original 130 MHz, providing enhanced performance margin for frequency-dependent applications. Both parts are ROHS3 compliant and REACH unaffected.

Alternative Recommendation: BCX56-16-TP (Micro Commercial Co)

The BCX56-16-TP maintains all core electrical specifications with the exception of DC current gain, which is specified at 100 hFE minimum (versus 63 for the original part). This higher gain characteristic may be advantageous in applications requiring improved current amplification. The part is actively produced with 752 pieces in stock and is ROHS3 compliant.

Consideration: BCX56-16,147 (Nexperia USA Inc.)

This part meets all primary electrical requirements with enhanced power dissipation (1.25 W versus 500 mW) and transition frequency (180 MHz versus 130 MHz). The higher power rating provides additional thermal margin for demanding applications. This part is actively produced with 14,932 pieces in stock and carries full compliance certifications.

Not Recommended for New Designs: 2SD1898T100Q (Rohm Semiconductor)

Although this part meets the core electrical specifications, it is classified as "Not For New Designs" and should not be selected for new applications. The part exhibits different saturation voltage characteristics (400 mV @ 20 mA, 500 mA) and lower transition frequency (100 MHz), making it suitable only for legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can BCX56-10-TP be directly replaced with BCX56-TP?

A: Yes. The BCX56-TP is a parametric equivalent with identical electrical specifications: 1 A collector current, 80 V breakdown voltage, 63 hFE minimum at 150 mA / 2 V, and 500 mW power dissipation. Both parts use the SOT-89 package and are surface mount compatible. The BCX56-TP is currently in active production, whereas the BCX56-10-TP is obsolete.

Q: What is the difference between BCX56-10TX and BCX56-10TF?

A: Both parts are parametric equivalents with identical electrical specifications and automotive-grade qualification (AEC-Q101). The primary difference is packaging format: BCX56-10TX is supplied in cut tape with digi-reel, while BCX56-10TF is also supplied in cut tape with digi-reel. Both feature 155 MHz transition frequency and are actively produced by Nexperia USA Inc.

Q: Why does BCX56-16-TP have a higher hFE specification?

A: The BCX56-16-TP is specified with 100 hFE minimum at 150 mA / 2 V, compared to 63 for the BCX56-10-TP. This represents a different gain grade within the BCX56 family. Both parts maintain identical voltage and current ratings, making them functionally interchangeable in most applications. The higher gain may provide improved current amplification efficiency.

Q: Is the 2SD1898T100Q suitable for new designs?

A: No. The 2SD1898T100Q is classified as "Not For New Designs" by Rohm Semiconductor. This designation indicates the manufacturer does not recommend this part for new product development. While it meets core electrical specifications, it should be used only for legacy system maintenance or repair.

Q: What is the significance of the AEC-Q101 qualification on BCX56-10TX and BCX56-10TF?

A: AEC-Q101 is an automotive electronics qualification standard. Parts bearing this qualification have undergone rigorous testing for reliability and performance in automotive environments. This certification is relevant for applications requiring automotive-grade components or operating in harsh environmental conditions.

Q: Can BCX56-16,147 be used as a drop-in replacement?

A: Yes, with design consideration. The BCX56-16,147 maintains all core electrical specifications (1 A, 80 V, SOT-89 package) and offers enhanced power dissipation (1.25 W versus 500 mW) and transition frequency (180 MHz versus 130 MHz). The higher performance characteristics make it suitable for applications requiring additional thermal or frequency margin. No circuit modifications are required for basic functionality.

Q: What does ROHS3 compliance indicate?

A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive 3, which restricts the use of specific hazardous materials in electrical and electronic equipment. All recommended substitute parts carry ROHS3 compliance, ensuring compatibility with current environmental and regulatory requirements.

Q: Are there packaging format differences between substitute parts?

A: Yes. The BCX56-10-TP is supplied in tape & reel format. Substitute parts are available in multiple packaging formats: tape & reel (TR), cut tape (CT) with digi-reel, and bulk options. The packaging format affects handling, storage, and automated assembly compatibility but does not alter electrical performance. Selection should be based on production equipment requirements and inventory management practices.

Q: What is the REACH status significance?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) is a European Union regulation for chemical safety. "REACH Unaffected" status indicates the part does not contain substances of very high concern (SVHC) requiring authorization. All recommended active substitute parts carry REACH unaffected status, ensuring compliance with current chemical safety regulations.

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