DRC3143Z0L Equivalent & Substitute Parts

Part Overview

The DRC3143Z0L is a pre-biased NPN bipolar junction transistor (BJT) manufactured by Panasonic Electronic Components. This surface mount device is rated for 50 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and 100 mW power dissipation. The part is packaged in SOT-723 (SSSMini3-F2-B) form factor and features integrated base and emitter-base resistors (4.7 kΩ and 47 kΩ respectively).

The DRC3143Z0L is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from active manufacturers including onsemi, Rohm Semiconductor, and Toshiba Semiconductor and Storage. These alternatives maintain electrical compatibility within the specified parameter ranges while offering continued product availability and support.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN - Pre-Biased	—
Current - Collector (Ic) (Max)	100	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Resistor - Base (R1)	4.7	kΩ
Resistor - Emitter Base (R2)	47	kΩ
DC Current Gain (hFE) (Min)	80	@ 5mA, 10V
Vce Saturation (Max)	250	mV @ 500µA, 10mA
Current - Collector Cutoff (Max)	500	nA
Power - Max	100	mW
Mounting Type	Surface Mount	—
Package / Case	SOT-723	—
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the DRC3143Z0L is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Transistor Type: NPN - Pre-Biased
Maximum Collector Current (Ic): 100 mA
Maximum Collector-Emitter Breakdown Voltage: 50 V
Base Resistor (R1): 4.7 kΩ
Emitter-Base Resistor (R2): 47 kΩ
Minimum DC Current Gain (hFE): 80 @ 5mA, 10V
Maximum Vce Saturation: 250 mV @ specified conditions
Maximum Collector Cutoff Current: 500 nA
Mounting Type: Surface Mount
Package / Case: SOT-723 or equivalent form factor

Direct Substitutes maintain all critical electrical parameters and package compatibility. These parts are functionally interchangeable with the DRC3143Z0L.

Similar Substitutes maintain core electrical specifications (voltage, current, transistor type, and integrated resistor values) but may differ in secondary parameters such as DC current gain range, power dissipation rating, or transition frequency. These parts are suitable for applications where the primary electrical characteristics are the determining factor.

Parameter Comparison

Part Number	Manufacturer	Product Status	Ic (Max) mA	Vce(br) (Max) V	R1 (Base) kΩ	R2 (Emitter-Base) kΩ	hFE (Min)	Vce Sat (Max) mV	Power (Max) mW	Package	RoHS Status
DRC3143Z0L	Panasonic Electronic Components	Discontinued	100	50	4.7	47	80	250	100	SOT-723	RoHS Compliant
DTC143ZM3T5G	onsemi	Active	100	50	4.7	47	80	250	260	SOT-723	ROHS3 Compliant
DTC143ZMT2L	Rohm Semiconductor	Active	100	50	4.7	47	80	300	150	SOT-723	ROHS3 Compliant
DTC143EM3T5G	onsemi	Active	100	50	4.7	4.7	15	250	260	SOT-723	ROHS3 Compliant
DTC143TM3T5G	onsemi	Active	100	50	4.7	Not Specified	160	250	260	SOT-723	ROHS3 Compliant
NSBC143ZF3T5G	onsemi	Active	100	50	4.7	47	80	250	254	SOT-1123	ROHS3 Compliant
NSVDTC143ZM3T5G	onsemi	Active	100	50	4.7	47	80	250	260	SOT-723	ROHS3 Compliant
RN1106MFV,L3F	Toshiba Semiconductor and Storage	Active	100	50	4.7	47	80	300	150	SOT-723	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

DTC143ZM3T5G (onsemi) and NSVDTC143ZM3T5G (onsemi) are direct substitutes for the DRC3143Z0L. Both parts maintain identical electrical specifications including base resistor (4.7 kΩ), emitter-base resistor (47 kΩ), minimum DC current gain (80 @ 5mA, 10V), and maximum Vce saturation (250 mV). Both are active products with ROHS3 compliance and MSL 1 rating. The increased power dissipation rating (260 mW versus 100 mW) provides additional thermal margin without affecting circuit operation.

Compatible Substitutes (Electrical Equivalence):

DTC143ZMT2L (Rohm Semiconductor) and RN1106MFV,L3F (Toshiba Semiconductor and Storage) maintain all critical electrical parameters including integrated resistor values and minimum DC current gain. Both are active products with ROHS3 compliance. The maximum Vce saturation specification is 300 mV (versus 250 mV for the main part), which remains within acceptable operating margins for pre-biased transistor applications. Power dissipation is rated at 150 mW.

Limited Compatibility (Parameter Deviations):

DTC143EM3T5G (onsemi) deviates from the DRC3143Z0L specification in two parameters: the emitter-base resistor is 4.7 kΩ (instead of 47 kΩ) and the minimum DC current gain is 15 (instead of 80). This part is suitable only for applications where lower current gain and different biasing characteristics are acceptable.

DTC143TM3T5G (onsemi) does not specify the emitter-base resistor value and exhibits a minimum DC current gain of 160 (versus 80). This part is suitable only for applications where the higher current gain specification is compatible with circuit design requirements.

NSBC143ZF3T5G (onsemi) is packaged in SOT-1123 form factor rather than SOT-723. While electrical specifications are equivalent to the DRC3143Z0L, physical package differences require PCB layout modification and may not be suitable for space-constrained applications.

Compliance and Availability:

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental specifications of the discontinued DRC3143Z0L. All substitute parts are currently active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can DTC143ZM3T5G be used as a direct replacement for DRC3143Z0L?

A: Yes. DTC143ZM3T5G maintains identical electrical specifications including maximum collector current (100 mA), collector-emitter breakdown voltage (50 V), integrated base resistor (4.7 kΩ), emitter-base resistor (47 kΩ), and minimum DC current gain (80 @ 5mA, 10V). Both parts are packaged in SOT-723 and carry equivalent RoHS and MSL certifications. The increased power dissipation rating (260 mW) provides additional thermal margin.

Q: What is the difference between DTC143ZM3T5G and NSVDTC143ZM3T5G?

A: Both parts are manufactured by onsemi and maintain identical electrical specifications. The primary difference is the base product number designation (DTC143 versus NSVDTC143). Both are active products with SOT-723 packaging, 260 mW power rating, and ROHS3 compliance. Selection between these parts is based on supplier availability and procurement requirements.

Q: Why does DTC143EM3T5G have different resistor values?

A: DTC143EM3T5G is designed for applications requiring different biasing characteristics. The emitter-base resistor is 4.7 kΩ (instead of 47 kΩ) and the minimum DC current gain is 15 (instead of 80). This part is not a direct substitute for the DRC3143Z0L and is suitable only for circuits specifically designed for these electrical characteristics.

Q: Can NSBC143ZF3T5G replace DRC3143Z0L in existing PCB designs?

A: NSBC143ZF3T5G maintains equivalent electrical specifications but is packaged in SOT-1123 form factor instead of SOT-723. Physical package differences require PCB layout modification. This part is electrically compatible but not physically interchangeable without design changes.

Q: What is the significance of the power dissipation difference between DRC3143Z0L (100 mW) and DTC143ZM3T5G (260 mW)?

A: The higher power dissipation rating of DTC143ZM3T5G indicates greater thermal capability. This difference does not affect circuit operation when the DRC3143Z0L is replaced with DTC143ZM3T5G. The substitute part can safely dissipate the same power levels as the original part while providing additional thermal margin for design robustness.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the RoHS compliance status of the discontinued DRC3143Z0L. All parts also carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference between DTC143ZMT2L and RN1106MFV,L3F?

A: Both parts maintain equivalent electrical specifications including 100 mA maximum collector current, 50 V breakdown voltage, 4.7 kΩ base resistor, 47 kΩ emitter-base resistor, and 80 minimum DC current gain. DTC143ZMT2L is manufactured by Rohm Semiconductor while RN1106MFV,L3F is manufactured by Toshiba Semiconductor and Storage. Both are packaged in SOT-723 and rated for 150 mW power dissipation. Selection is based on supplier availability and procurement preferences.

Q: Can I use DTC143TM3T5G as a substitute if the emitter-base resistor value is not specified?

A: DTC143TM3T5G exhibits a minimum DC current gain of 160 (versus 80 for the DRC3143Z0L) and does not specify the emitter-base resistor value. This part is suitable only for applications where the higher current gain specification is compatible with circuit design requirements. Verification of circuit performance is necessary before implementation in designs originally specified for the DRC3143Z0L.

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