DNLS320E-13 Equivalent & Substitute Parts

Part Overview

The DNLS320E-13 is an NPN bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-223-3 package. This active product operates at a maximum collector current of 3 A and collector-emitter breakdown voltage of 20 V, with a maximum power dissipation of 1 W. The device is specified for operating temperatures from -55°C to 150°C and features a transition frequency of 150 MHz.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) (Max)	3	A
Voltage - Collector Emitter Breakdown (Max)	20	V
Vce Saturation (Max) @ Ib, Ic	450 mV @ 20 mA, 3 A	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	400 @ 2 A, 2 V	—
Power - Max	1	W
Frequency - Transition	150	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-223-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the DNLS320E-13 is determined by the following critical parameters:

Transistor Type: NPN configuration required
Collector Current (Ic) Rating: Minimum 3 A capability
Collector-Emitter Breakdown Voltage (Vce(br)ceo): Minimum 20 V
Package Type: SOT-223-3 surface mount form factor
Saturation Voltage: Performance at specified Ib and Ic conditions
Operating Temperature Range: Compatibility with -55°C to 150°C specification
RoHS and Compliance Status: ROHS3 compliance and REACH unaffected status

Substitute parts are grouped into two categories:

Direct Electrical Equivalents: Parts meeting or exceeding all electrical specifications with identical or superior power ratings and frequency response.

Functional Alternatives: Parts with reduced current or power ratings that operate within the same voltage and package envelope but require application-level verification of current requirements.

Parameter Comparison

Parameter	DNLS320E-13	FZT689BTA	BCP68T1G	BCP68,115	BCP68-25,115
Manufacturer	Diodes Incorporated	Diodes Incorporated	onsemi	NXP USA Inc.	Nexperia USA Inc.
Transistor Type	NPN	NPN	NPN	NPN	NPN
Ic (Max)	3 A	3 A	1 A	1 A	2 A
Vce(br)ceo (Max)	20 V	20 V	20 V	20 V	20 V
Vce Saturation (Max)	450 mV @ 20 mA, 3 A	450 mV @ 20 mA, 3 A	500 mV @ 100 mA, 1 A	500 mV @ 100 mA, 1 A	600 mV @ 200 mA, 2 A
Icbo (Max)	100 nA	100 nA	10 µA	100 nA	100 nA
hFE (Min)	400 @ 2 A, 2 V	400 @ 2 A, 2 V	85 @ 500 mA, 1 V	85 @ 500 mA, 1 V	160 @ 500 mA, 1 V
Power - Max	1 W	2 W	1.5 W	1.4 W	650 mW
Frequency - Transition	150 MHz	150 MHz	60 MHz	170 MHz	170 MHz
Operating Temperature	-55 to 150 °C	-55 to 150 °C	-65 to 150 °C	150 °C (TJ)	150 °C (TJ)
Package / Case	SOT-223-3	SOT-223-3	SOT-223	SOT-223	SOT-223
Packaging Type	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Bulk	Cut Tape (CT) & Digi-Reel®
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

FZT689BTA (Diodes Incorporated): This part provides direct electrical equivalence to the DNLS320E-13 with identical collector current (3 A), breakdown voltage (20 V), saturation voltage characteristics, and transition frequency (150 MHz). The FZT689BTA offers superior power dissipation capability (2 W versus 1 W) and maintains the same operating temperature range. Both devices are ROHS3 compliant with MSL 1 rating. The primary difference is packaging format (Cut Tape versus Tape & Reel). This substitute is suitable for applications requiring the full 3 A collector current specification.

BCP68T1G (onsemi): This part operates at reduced collector current (1 A maximum) compared to the DNLS320E-13 (3 A maximum). The BCP68T1G maintains the 20 V breakdown voltage and SOT-223 package compatibility. Operating temperature range extends to -65°C. Transition frequency is reduced to 60 MHz. This substitute is applicable only to applications where collector current requirements do not exceed 1 A. ROHS3 compliance and MSL 1 rating are maintained.

BCP68,115 (NXP USA Inc.): This part is rated for 1 A maximum collector current with 20 V breakdown voltage. Power dissipation is 1.4 W. Transition frequency is 170 MHz. Operating temperature specification is limited to 150°C maximum (TJ). This substitute is suitable for applications with collector current requirements of 1 A or less. ROHS3 compliance and MSL 1 rating are maintained.

BCP68-25,115 (Nexperia USA Inc.): This part provides 2 A maximum collector current, intermediate between the DNLS320E-13 (3 A) and single-ampere alternatives. Breakdown voltage is 20 V. Transition frequency is 170 MHz. Power dissipation is 650 mW, which is lower than the primary part. Operating temperature specification is limited to 150°C maximum (TJ). This substitute is applicable to applications requiring 2 A or less collector current. ROHS3 compliance and MSL 1 rating are maintained.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original DNLS320E-13 specification.

Frequently Asked Questions (FAQ)

Q: Can FZT689BTA be used as a direct replacement for DNLS320E-13?

A: Yes. The FZT689BTA meets or exceeds all electrical specifications of the DNLS320E-13, including 3 A collector current, 20 V breakdown voltage, identical saturation voltage characteristics, and 150 MHz transition frequency. Both devices operate across the -55°C to 150°C temperature range. The primary difference is packaging format (Cut Tape versus Tape & Reel). Mechanical compatibility is maintained through identical SOT-223-3 package geometry.

Q: What is the primary limitation of BCP68T1G as a substitute?

A: The BCP68T1G is rated for a maximum collector current of 1 A, compared to the DNLS320E-13 specification of 3 A. This part is suitable only for applications where the actual collector current requirement does not exceed 1 A. Additionally, the transition frequency is reduced to 60 MHz. Applications requiring the full 3 A current capability or higher frequency response must use FZT689BTA or BCP68-25,115.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All substitute parts use the SOT-223 or SOT-223-3 surface mount package, which maintains mechanical compatibility with the DNLS320E-13 footprint. Pin configuration and lead spacing are identical across all listed substitutes, allowing direct PCB placement without layout modification.

Q: What is the difference between BCP68,115 and BCP68-25,115?

A: The primary difference is collector current rating. BCP68,115 is rated for 1 A maximum, while BCP68-25,115 is rated for 2 A maximum. Both maintain 20 V breakdown voltage and SOT-223 package compatibility. The BCP68-25,115 provides intermediate current capability between single-ampere and 3-ampere options. Power dissipation of BCP68-25,115 is 650 mW, lower than BCP68,115 at 1.4 W.

Q: Do all substitute parts meet the same compliance standards as DNLS320E-13?

A: Yes. All listed substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating, matching the compliance profile of the DNLS320E-13. This ensures regulatory and environmental compatibility across all substitution options.

Q: Which substitute part offers the highest power dissipation capability?

A: FZT689BTA provides the highest power dissipation rating at 2 W, compared to the DNLS320E-13 at 1 W. This provides additional thermal margin in applications approaching the power limits of the original specification.

Q: Can BCP68-25,115 be used in applications designed for the full 3 A specification?

A: No. The BCP68-25,115 is rated for 2 A maximum collector current. Applications requiring sustained operation at 3 A must use FZT689BTA, which maintains the full 3 A rating of the DNLS320E-13.

Q: What is the impact of reduced transition frequency in BCP68T1G?

A: The BCP68T1G operates at 60 MHz transition frequency, compared to 150 MHz for the DNLS320E-13. This reduction limits high-frequency switching performance. Applications requiring operation above 60 MHz must use FZT689BTA (150 MHz), BCP68,115 (170 MHz), or BCP68-25,115 (170 MHz).

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