DTC113ZCA-TP Equivalent & Substitute Parts

Part Overview

The DTC113ZCA-TP is a pre-biased NPN bipolar junction transistor (BJT) manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-23-3 package. This component operates at a maximum collector current of 100 mA with a transition frequency of 250 MHz and maximum power dissipation of 200 mW. The device features integrated base and emitter-base resistors (1 kOhm and 10 kOhm respectively) that establish the pre-bias network.

The DTC113ZCA-TP is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when alternative packaging formats are required for manufacturing flexibility while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN - Pre-Biased	—
Current - Collector (Ic) Max	100	mA
Resistor - Base (R1)	1	kOhms
Resistor - Emitter Base (R2)	10	kOhms
DC Current Gain (hFE) Min @ Ic, Vce	33 @ 5mA, 5V	—
Vce Saturation Max @ Ib, Ic	300	mV @ 500µA, 10mA
Current - Collector Cutoff Max	500	nA
Frequency - Transition	250	MHz
Power - Max	200	mW
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the DTC113ZCA-TP is determined by strict electrical and mechanical compatibility criteria. The following parameters establish the substitution hierarchy:

Critical Parameters (Must Match):

Transistor Type: NPN - Pre-Biased
Current - Collector (Ic) Max: 100 mA
Frequency - Transition: 250 MHz
Power - Max: 200 mW
Package / Case: TO-236-3, SC-59, SOT-23-3
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Biasing Network Parameters (Define Functional Behavior):

Resistor - Base (R1)
Resistor - Emitter Base (R2)
DC Current Gain (hFE) Min @ Ic, Vce
Vce Saturation Max @ Ib, Ic
Current - Collector Cutoff Max

Direct Equivalents maintain identical R1 and R2 values (1 kOhm and 10 kOhm) with matching DC current gain specifications. These parts are electrically interchangeable with no circuit modifications required.

Similar Substitutes feature alternative biasing resistor networks and modified DC current gain characteristics. These parts operate within the same electrical envelope but produce different switching behavior and bias point characteristics. Selection requires circuit-level evaluation of the application's bias requirements.

Parameter Comparison

Part Number	Manufacturer	Ic Max (mA)	R1 (kOhms)	R2 (kOhms)	hFE Min @ Ic, Vce	Vce Sat Max (mV)	Packaging	Supplier Device Package
DTC113ZCA-TP	Micro Commercial Co	100	1	10	33 @ 5mA, 5V	300	Tape & Reel (TR)	SOT-23-3L
DDTC113ZCA-7-F	Diodes Incorporated	100	1	10	33 @ 5mA, 5V	300	Tape & Reel (TR)	SOT-23-3
DTC113ZKAT146	Rohm Semiconductor	100	1	10	33 @ 5mA, 5V	300	Cut Tape (CT) & Digi-Reel®	SMT3
DDTC114ECA-7-F	Diodes Incorporated	100	10	10	30 @ 5mA, 5V	300	Tape & Reel (TR)	SOT-23-3
DDTC114WCA-7-F	Diodes Incorporated	100	10	4.7	24 @ 10mA, 5V	300	Tape & Reel (TR)	SOT-23-3
DDTC114YCA-7-F	Diodes Incorporated	100	10	47	68 @ 5mA, 5V	300	Cut Tape (CT) & Digi-Reel®	SOT-23-3
DDTC115ECA-7-F	Diodes Incorporated	100	100	100	82 @ 5mA, 5V	300	Tape & Reel (TR)	SOT-23-3
DDTC123ECA-7-F	Diodes Incorporated	100	2.2	2.2	20 @ 20mA, 5V	300	Cut Tape (CT) & Digi-Reel®	SOT-23-3
DDTC123JCA-7-F	Diodes Incorporated	100	2.2	47	80 @ 10mA, 5V	300	Tape & Reel (TR)	SOT-23-3
DDTC123YCA-7-F	Diodes Incorporated	100	2.2	10	33 @ 10mA, 5V	300	Tape & Reel (TR)	SOT-23-3
DDTC124ECA-7-F	Diodes Incorporated	100	22	22	56 @ 5mA, 5V	300	Tape & Reel (TR)	SOT-23-3

Engineering Selection Recommendations

Direct Equivalents (Electrically Interchangeable):

The DDTC113ZCA-7-F (Diodes Incorporated) and DTC113ZKAT146 (Rohm Semiconductor) are direct electrical equivalents to the DTC113ZCA-TP. Both parts maintain identical biasing resistor networks (R1 = 1 kOhm, R2 = 10 kOhm) and DC current gain specifications (33 @ 5mA, 5V). These parts are suitable for direct substitution without circuit modification. The primary difference is packaging format: DDTC113ZCA-7-F is supplied in Tape & Reel format with SOT-23-3 package designation, while DTC113ZKAT146 is available in Cut Tape & Digi-Reel® format with SMT3 package designation. All three parts maintain ROHS3 compliance and MSL 1 rating.

Similar Substitutes (Application-Dependent Selection):

The DDTC114 series (DDTC114ECA-7-F, DDTC114WCA-7-F, DDTC114YCA-7-F) feature modified base resistor values (10 kOhms) with varying emitter-base resistor configurations. These parts produce different bias point characteristics and are suitable for applications requiring higher base resistance networks.

The DDTC115ECA-7-F features the highest base and emitter-base resistor values (100 kOhms each) with elevated DC current gain (82 @ 5mA, 5V), suitable for applications requiring minimal base current draw.

The DDTC123 series (DDTC123ECA-7-F, DDTC123JCA-7-F, DDTC123YCA-7-F) incorporates lower base resistor values (2.2 kOhms) with variable emitter-base resistor networks, producing lower DC current gain characteristics suitable for high-speed switching applications.

The DDTC124ECA-7-F features moderate base and emitter-base resistor values (22 kOhms each) with mid-range DC current gain (56 @ 5mA, 5V).

All substitute parts maintain identical maximum collector current (100 mA), transition frequency (250 MHz), power dissipation (200 mW), and saturation voltage specifications (300 mV @ 500µA, 10mA). All parts are ROHS3 compliant with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can DDTC113ZCA-7-F be used as a direct replacement for DTC113ZCA-TP?

A: Yes. The DDTC113ZCA-7-F is a direct electrical equivalent with identical biasing resistor values (R1 = 1 kOhm, R2 = 10 kOhm) and DC current gain specifications (33 @ 5mA, 5V). No circuit modifications are required. The primary difference is the supplier device package designation (SOT-23-3 versus SOT-23-3L), which does not affect electrical performance or mechanical compatibility in standard surface mount applications.

Q: What is the difference between direct equivalents and similar substitutes?

A: Direct equivalents maintain identical internal biasing resistor networks and DC current gain characteristics, enabling drop-in replacement without circuit modification. Similar substitutes feature alternative biasing resistor configurations that produce different bias point characteristics and switching behavior. Selection of similar substitutes requires evaluation of the application's specific bias requirements and switching performance needs.

Q: Can I substitute a DDTC114 series part for the DTC113ZCA-TP?

A: The DDTC114 series parts are not direct equivalents. These devices feature a 10 kOhm base resistor (versus 1 kOhm in the DTC113ZCA-TP) with variable emitter-base resistor networks. This configuration produces different bias point characteristics. Substitution is possible only if the application's circuit design accommodates the modified biasing network and resulting DC current gain variations.

Q: Are all substitute parts available in the same packaging format?

A: No. The DTC113ZCA-TP is supplied in Tape & Reel format with SOT-23-3L package designation. The DDTC113ZCA-7-F is available in Tape & Reel with SOT-23-3 designation. The DTC113ZKAT146 is available in Cut Tape & Digi-Reel® format with SMT3 designation. All three maintain mechanical compatibility with standard SOT-23-3 footprints. Other substitute parts are available in Tape & Reel or Cut Tape & Digi-Reel® formats. Verify packaging compatibility with your procurement and assembly requirements.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the DTC113ZCA-TP specifications. All parts are classified as active products with REACH Unaffected status and EAR99 export classification.

Q: What determines whether a substitute part is suitable for my application?

A: Suitability is determined by three factors: (1) electrical compatibility—the biasing resistor network and DC current gain must match the circuit's bias requirements; (2) mechanical compatibility—the package and mounting type must align with your PCB footprint and assembly process; (3) supply availability—the part must be available in the required packaging format and quantity. Direct equivalents satisfy all three criteria without modification. Similar substitutes require circuit-level evaluation to confirm bias point compatibility.

Q: Can I use DDTC123YCA-7-F as a substitute for DTC113ZCA-TP?

A: The DDTC123YCA-7-F features a 2.2 kOhm base resistor and 10 kOhm emitter-base resistor with DC current gain of 33 @ 10mA, 5V. While the DC current gain specification is similar to the DTC113ZCA-TP (33 @ 5mA, 5V), the base resistor value is significantly different (2.2 kOhm versus 1 kOhm). This produces a different bias point and base current requirement. Substitution is possible only if the application's circuit design accommodates the modified base resistor network.

Q: What is the significance of the Vce Saturation specification?

A: Vce Saturation (300 mV @ 500µA, 10mA) defines the minimum voltage drop across the collector-emitter junction when the transistor is fully saturated. This specification is identical across all listed parts and ensures consistent switching behavior and power dissipation characteristics in saturation mode operation.

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