BCX56-16 BK NPN Bipolar Transistor Equivalent & Substitute Parts

Part Overview

The BCX56-16 BK is an NPN bipolar junction transistor manufactured by Central Semiconductor Corp, designed for surface mount applications in the SOT-89 package. This device operates at 80 V collector-emitter breakdown voltage with a maximum collector current of 1 A and transition frequency of 130 MHz. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. Active alternatives from current manufacturers provide equivalent electrical performance with improved availability and compliance status.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Collector-Emitter Breakdown Voltage (Max)	80	V
Collector Current (Max)	1	A
Vce Saturation (Max)	500 mV @ 50 mA, 500 mA	—
Collector Cutoff Current (Max)	100 nA	—
DC Current Gain (hFE Min)	100 @ 150 mA, 2 V	—
Power Dissipation (Max)	1.3	W
Transition Frequency	130	MHz
Operating Temperature Range	−65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—
Supplier Device Package	SOT-89	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BCX56-16 BK is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Criteria:

Transistor type: NPN
Collector-emitter breakdown voltage: 80 V
Maximum collector current: 1 A
Vce saturation: 500 mV @ 50 mA, 500 mA
Collector cutoff current: 100 nA
DC current gain (hFE): minimum 100 @ 150 mA, 2 V
Mounting type: Surface Mount
Package / Case: TO-243AA
Supplier device package: SOT-89 or SOT-89-3

Substitute parts are grouped into two categories:

Category 1: Direct Electrical Equivalents with Identical hFE Specification (hFE Min = 100) These parts maintain the exact DC current gain minimum of 100 @ 150 mA, 2 V:

BCX56-16-TP (Micro Commercial Co)
BCX56-16,115 (Nexperia USA Inc.)
BCX56-16,135 (Nexperia USA Inc.)
BCX56-16,147 (Nexperia USA Inc.)

Category 2: Electrical Equivalents with Lower hFE Specification (hFE Min = 63) These parts meet all critical parameters except DC current gain, which is specified at 63 @ 150 mA, 2 V:

BCX56,115 (Nexperia USA Inc.)
BCX56,135 (NXP USA Inc.)
BCX56-10,115 (Nexperia USA Inc.)
BCX56-10,135 (Nexperia USA Inc.)
BCX5610TA (Diodes Incorporated)

Category 3: Alternative Package Variant

2SD1898T100P (Rohm Semiconductor) — Different package (MPT3), different hFE specification (82 @ 500 mA, 3 V), higher power rating (2 W), lower transition frequency (100 MHz)

Parameter Comparison

Part Number	Manufacturer	Ic (Max) A	Vce(br) V	hFE Min @ Ic, Vce	Power W	fT MHz	Package	Status	Packaging Type
BCX56-16 BK	Central Semiconductor	1	80	100 @ 150mA, 2V	1.3	130	SOT-89	Obsolete	—
BCX56-16-TP	Micro Commercial Co	1	80	100 @ 150mA, 2V	0.5	130	SOT-89	Active	Tape & Reel
BCX56-16,115	Nexperia USA Inc.	1	80	100 @ 150mA, 2V	1.25	180	SOT-89	Active	Cut Tape & Digi-Reel
BCX56-16,135	Nexperia USA Inc.	1	80	100 @ 150mA, 2V	1.25	180	SOT-89	Active	Tape & Reel
BCX56-16,147	Nexperia USA Inc.	1	80	100 @ 150mA, 2V	1.25	180	SOT-89	Active	Tape & Reel
BCX56,115	Nexperia USA Inc.	1	80	63 @ 150mA, 2V	1.25	180	SOT-89	Active	Cut Tape & Digi-Reel
BCX56,135	NXP USA Inc.	1	80	63 @ 150mA, 2V	1.25	180	SOT-89	Active	Bulk
BCX56-10,115	Nexperia USA Inc.	1	80	63 @ 150mA, 2V	1.25	180	SOT-89	Active	Tape & Reel
BCX56-10,135	Nexperia USA Inc.	1	80	63 @ 150mA, 2V	1.25	180	SOT-89	Active	Tape & Reel
BCX5610TA	Diodes Incorporated	1	80	63 @ 150mA, 2V	1	150	SOT-89-3	Active	Tape & Reel
2SD1898T100P	Rohm Semiconductor	1	80	82 @ 500mA, 3V	2	100	MPT3	Not For New Designs	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For Direct Replacement (Identical hFE Specification):

Select BCX56-16,115, BCX56-16,135, or BCX56-16,147 from Nexperia USA Inc. for applications requiring the exact DC current gain minimum of 100 @ 150 mA, 2 V. All three variants are active products with ROHS3 compliance and REACH unaffected status. These parts provide superior transition frequency (180 MHz versus 130 MHz) and improved power dissipation characteristics (1.25 W). Packaging options include Cut Tape & Digi-Reel and Tape & Reel formats with high inventory availability.

BCX56-16-TP from Micro Commercial Co is an active alternative with identical hFE specification and active product status. Note that this variant specifies lower maximum power dissipation (500 mW) compared to the original part (1.3 W).

For Applications Tolerant of Lower hFE:

BCX56,115 and BCX56,135 from Nexperia/NXP USA Inc., BCX56-10,115 and BCX56-10,135 from Nexperia USA Inc., and BCX5610TA from Diodes Incorporated are suitable for designs where DC current gain minimum of 63 @ 150 mA, 2 V is acceptable. All are active products with full compliance certifications. These options provide enhanced transition frequency (150–180 MHz) and adequate power handling.

For Legacy System Maintenance:

2SD1898T100P from Rohm Semiconductor is classified as "Not For New Designs" and features a different package variant (MPT3). This part is suitable only for sustaining production of existing designs where the MPT3 package is already established. The hFE specification differs (82 @ 500 mA, 3 V) and transition frequency is lower (100 MHz).

Compliance and Availability:

All active substitute parts carry ROHS3 compliance and REACH unaffected status. Nexperia variants demonstrate the highest inventory levels (2,100–90,200 units), ensuring supply chain continuity. Diodes Incorporated BCX5610TA provides 63,100 units in stock.

Frequently Asked Questions (FAQ)

Q1: Can BCX56-16 BK be directly replaced with BCX56,115 or BCX56,135?

A: BCX56,115 and BCX56,135 are electrically compatible for most applications. Both maintain the 80 V collector-emitter breakdown voltage, 1 A maximum collector current, and SOT-89 package specification. The primary difference is DC current gain: BCX56,115 and BCX56,135 specify a minimum of 63 @ 150 mA, 2 V, compared to 100 @ 150 mA, 2 V for the original BCX56-16 BK. Applications with tight gain tolerance requirements must account for this difference. Both are active products with superior transition frequency (180 MHz).

Q2: What is the difference between BCX56-16,115, BCX56-16,135, and BCX56-16,147?

A: These three Nexperia variants are electrically identical. All specify hFE minimum of 100 @ 150 mA, 2 V, matching the original BCX56-16 BK. The suffix designations (115, 135, 147) indicate different packaging configurations and distribution channels. BCX56-16,115 is supplied in Cut Tape & Digi-Reel format. BCX56-16,135 and BCX56-16,147 are supplied in Tape & Reel format. Selection depends on assembly process requirements and inventory availability.

Q3: Why does BCX56-16-TP specify lower power dissipation (500 mW) than the original part (1.3 W)?

A: BCX56-16-TP from Micro Commercial Co is rated for 500 mW maximum power dissipation, while the original BCX56-16 BK is rated for 1.3 W. This represents a more conservative thermal specification for the same electrical performance. Applications operating near the original 1.3 W limit must account for this reduced power budget. For applications operating below 500 mW, BCX56-16-TP is fully compatible.

Q4: Is BCX5610TA compatible with BCX56-16 BK?

A: BCX5610TA from Diodes Incorporated is mechanically and electrically compatible for most applications. Both are NPN transistors in SOT-89 package with 80 V breakdown voltage and 1 A maximum collector current. Key differences include: DC current gain (63 @ 150 mA, 2 V versus 100 @ 150 mA, 2 V), transition frequency (150 MHz versus 130 MHz), and maximum power dissipation (1 W versus 1.3 W). Applications with strict gain tolerance requirements should account for the lower hFE specification.

Q5: Can 2SD1898T100P replace BCX56-16 BK?

A: 2SD1898T100P from Rohm Semiconductor is not recommended as a direct replacement. While both are NPN transistors with 80 V breakdown voltage and 1 A collector current, the 2SD1898T100P uses a different package (MPT3 versus SOT-89), has different hFE specification (82 @ 500 mA, 3 V versus 100 @ 150 mA, 2 V), lower transition frequency (100 MHz), and is classified as "Not For New Designs." This part is suitable only for sustaining production of existing designs already qualified with the MPT3 package.

Q6: What packaging options are available for BCX56-16 substitutes?

A: Substitute parts are available in multiple packaging formats: Cut Tape & Digi-Reel (BCX56-16,115, BCX56,115), Tape & Reel (BCX56-16-TP, BCX56-16,135, BCX56-16,147, BCX56-10,115, BCX56-10,135, BCX5610TA), and Bulk (BCX56,135). Selection depends on assembly process requirements. Tape & Reel format is standard for automated pick-and-place assembly. Cut Tape & Digi-Reel is suitable for lower-volume production or mixed-component reels.

Q7: Are all substitute parts RoHS3 compliant?

A: All active substitute parts (BCX56-16-TP, BCX56,115, BCX56,135, BCX56-16,115, BCX56-16,135, BCX56-16,147, BCX56-10,115, BCX56-10,135, BCX5610TA) are RoHS3 compliant and REACH unaffected. The original BCX56-16 BK is obsolete and compliance status is not specified. 2SD1898T100P is RoHS3 compliant but classified as "Not For New Designs."

Q8: Which substitute offers the best transition frequency performance?

A: BCX56-16,115, BCX56-16,135, BCX56-16,147, BCX56,115, BCX56,135, BCX56-10,115, and BCX56-10,135 all specify 180 MHz transition frequency, compared to 130 MHz for the original BCX56-16 BK. BCX5610TA specifies 150 MHz. 2SD1898T100P specifies 100 MHz. For applications requiring maximum switching speed, Nexperia variants with 180 MHz fT are preferred.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message