DCX56-16-13 Equivalent & Substitute Parts

Part Overview

The DCX56-16-13 is a Surface Mount NPN Bipolar Junction Transistor manufactured by Diodes Incorporated, rated for 80 V collector-emitter breakdown voltage and 1 A maximum collector current. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The part is housed in a SOT-89-3 package and operates across a temperature range of -55°C to 150°C.

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
Collector Cutoff Current (ICBO)	100 nA
DC Current Gain (hFE) Min	100 @ 150 mA, 2 V
Power Dissipation (Max)	1 W
Transition Frequency	200 MHz
Operating Temperature Range	-55°C to 150°C
Package Type	SOT-89-3 (TO-243AA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DCX56-16-13 is determined by strict electrical and mechanical compatibility across the following parameters:

Electrical Compatibility Criteria:

Transistor Type: NPN
Collector Current (Ic) Max: 1 A (minimum requirement)
Collector-Emitter Breakdown Voltage: 80 V (minimum requirement)
Vce Saturation: 500 mV @ 50 mA, 500 mA
Collector Cutoff Current: 100 nA (maximum)
DC Current Gain (hFE) Min: 100 @ 150 mA, 2 V (minimum requirement)

Mechanical Compatibility Criteria:

Package Type: SOT-89-3 or equivalent footprint (TO-243AA)
Mounting Type: Surface Mount
Moisture Sensitivity Level: 1 (Unlimited)

Compliance Criteria:

RoHS3 Compliant
REACH Unaffected

Substitute parts are grouped into two categories: Direct Equivalents (matching all electrical and mechanical parameters) and Functional Equivalents (meeting all electrical requirements with package variations or enhanced specifications).

Parameter Comparison

Part Number	Manufacturer	Product Status	Ic Max (A)	Vce Breakdown (V)	hFE Min @ 150mA, 2V	Power Max (W)	Frequency (MHz)	Temp Range (°C)	Package
DCX56-16-13	Diodes Incorporated	Obsolete	1	80	100	1	200	-55 to 150	SOT-89-3
BCX5616QTA	Diodes Incorporated	Active	1	80	100	2	150	-65 to 150	SOT-89-3
BCX5616TA	Diodes Incorporated	Active	1	80	100	1	150	-65 to 150	SOT-89-3
BCX56-16,135	Nexperia USA Inc.	Active	1	80	100	1.25	180	-55 to 150	SOT-89
BCP56T1G	onsemi	Active	1	80	40	1.5	130	-65 to 150	SOT-223
BCX56,115	Nexperia USA Inc.	Active	1	80	63	1.25	180	-55 to 150	SOT-89
BCX56,135	NXP USA Inc.	Active	1	80	63	1.25	180	-55 to 150	SOT-89
BCX56-10,115	Nexperia USA Inc.	Active	1	80	63	1.25	180	-55 to 150	SOT-89
BCX56-10,135	Nexperia USA Inc.	Active	1	80	63	1.25	180	-55 to 150	SOT-89
BCX56-16,115	Nexperia USA Inc.	Active	1	80	100	1.25	180	-55 to 150	SOT-89
BCX56-16,147	Nexperia USA Inc.	Active	1	80	100	1.25	180	-55 to 150	SOT-89

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

BCX5616TA and BCX5616QTA from Diodes Incorporated are the preferred substitutes. Both parts maintain identical electrical specifications to the DCX56-16-13 across all critical parameters: 1 A collector current, 80 V breakdown voltage, 100 hFE minimum, and SOT-89-3 package compatibility. Both are Active products with ROHS3 compliance and unlimited moisture sensitivity rating. BCX5616TA matches the 1 W power rating of the original part, while BCX5616QTA provides enhanced 2 W capability. Both support extended operating temperature range (-65°C to 150°C) compared to the original (-55°C to 150°C).

Secondary Substitutes (Nexperia BCX56 Series):

BCX56-16,115 and BCX56-16,147 from Nexperia USA Inc. provide functional equivalence with enhanced specifications. Both maintain 1 A collector current, 80 V breakdown voltage, and 100 hFE minimum gain. These parts offer increased power dissipation (1.25 W versus 1 W) and higher transition frequency (180 MHz versus 200 MHz). Operating temperature range matches the original specification (-55°C to 150°C). Package designation is SOT-89 (compatible with SOT-89-3 footprint). Both are Active products with ROHS3 compliance.

Alternative Substitute (Package Variation):

BCP56T1G from onsemi represents a functional equivalent with package variation. This part maintains 1 A collector current and 80 V breakdown voltage but uses SOT-223 (TO-261) package instead of SOT-89-3. The DC current gain is reduced to 40 hFE minimum, which may require circuit design verification. Power dissipation is enhanced to 1.5 W. This substitute is suitable only for applications where PCB layout accommodates the larger SOT-223 package footprint and where the lower hFE specification does not impact circuit performance.

Compliance Status:

All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can BCX5616TA directly replace DCX56-16-13 without circuit modification?

A: Yes. BCX5616TA maintains identical electrical specifications across all critical parameters: 1 A collector current, 80 V breakdown voltage, 100 hFE minimum, and 500 mV Vce saturation. The SOT-89-3 package is identical. Extended temperature range (-65°C to 150°C) provides additional operational margin. No circuit modification is required.

Q: What is the difference between BCX5616TA and BCX5616QTA?

A: Both parts are manufactured by Diodes Incorporated and share identical electrical specifications. The primary difference is maximum power dissipation: BCX5616TA is rated for 1 W (matching the original DCX56-16-13), while BCX5616QTA is rated for 2 W. Selection depends on thermal requirements of the application. Both are Active products with identical package and compliance specifications.

Q: Why do Nexperia BCX56 parts show different hFE values?

A: Nexperia BCX56 series parts are available in multiple gain grades. BCX56-16,115 and BCX56-16,147 maintain 100 hFE minimum (matching the original), while BCX56,115 and BCX56-10,115 are specified at 63 hFE minimum. The numeric suffix (16, 10) and additional designators (115, 135, 147) indicate different gain grades and packaging options. Selection must match the original hFE specification for the application.

Q: Is the BCP56T1G package change acceptable?

A: BCP56T1G uses SOT-223 (TO-261) package instead of SOT-89-3. This represents a significant footprint change requiring PCB layout modification. Additionally, the 40 hFE minimum specification is lower than the original 100 hFE minimum, which may affect circuit gain and biasing. This substitute is suitable only when PCB redesign is feasible and circuit analysis confirms acceptable performance with reduced hFE.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental regulations and manufacturing standards.

Q: What is the significance of the numeric suffixes in Nexperia part numbers?

A: Nexperia BCX56 series uses numeric suffixes to denote gain grades and packaging variants. The "-16" designation indicates a specific hFE grade (100 minimum), while "-10" indicates a different grade (63 minimum). Suffixes like "115," "135," and "147" denote packaging options (Cut Tape, Tape & Reel, or Bulk). Selection must match both the gain grade and packaging requirements of the application.

Q: Can I use BCX56,115 as a substitute if my circuit tolerates lower hFE?

A: BCX56,115 is electrically compatible with the DCX56-16-13 across voltage and current ratings but specifies 63 hFE minimum versus the original 100 hFE minimum. This lower gain may affect circuit biasing, amplification, and switching characteristics. Use of this part requires circuit analysis to confirm acceptable performance with reduced current gain. This part is suitable only when design verification confirms compatibility.

Q: What inventory considerations apply to these substitutes?

A: BCX5616TA has the highest inventory availability (23,905 pcs), followed by BCX56,135 (161,047 pcs in bulk packaging). BCX5616QTA (6,607 pcs) and BCX56-16,115 (2,100 pcs) have lower availability. Inventory levels should be verified at time of procurement, as availability is subject to change.

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