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DTC124TMT2L Equivalent & Substitute Parts Reference
Part Overview
The DTC124TMT2L, manufactured by Rohm Semiconductor, is an active pre-biased NPN bipolar transistor (BJT) designed for surface mount applications. It is classified under the Transistors, Bipolar (BJT) category and utilizes the VMT3 package (SOT-723). Identification of alternate or substitute models is required for cases involving supply chain continuity, mechanical integration, or compliance requirements. Alternatives must strictly match or exceed the electrical and mechanical specifications detailed below.
Substiute Parts
Key Parameters
| Parameter | DTC124TMT2L Value |
|---|---|
| Transistor Type | NPN - Pre-Biased |
| Current - Collector (Ic) (Max) | 100 mA |
| Voltage - Collector Emitter Breakdown (Max) | 50 V |
| Resistor - Base (R1) | 22 kOhms |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 100 @ 1mA, 5V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 5mA |
| Current - Collector Cutoff (Max) | 500nA (ICBO) |
| Frequency - Transition | 250 MHz |
| Power - Max | 150 mW |
| Mounting Type | Surface Mount |
| Package / Case | SOT-723 |
| Supplier Device Package | VMT3 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution is based strictly on the matching of the following key parameters: transistor type (NPN - Pre-Biased), collector current rating (100 mA max), breakdown voltage (50 V max), base resistor value (22 kOhms), DC current gain (100 @ 1mA, 5V), frequency transition (250 MHz), saturation voltage, cutoff current, maximum power rating, mounting type (Surface Mount), and compliance statuses (RoHS, REACH, MSL). Package compatibility is required for direct mechanical exchange. Substitute parts included below satisfy all specified criteria.
Parameter Comparison
| Parameter | DTC124TMT2L (Rohm Semiconductor) | PDTC124TM,315 (Nexperia USA Inc.) |
|---|---|---|
| Transistor Type | NPN - Pre-Biased | NPN - Pre-Biased |
| Current - Collector (Ic) (Max) | 100 mA | 100 mA |
| Voltage - Collector Emitter Breakdown (Max) | 50 V | 50 V |
| Resistor - Base (R1) | 22 kOhms | 22 kOhms |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 100 @ 1mA, 5V | 100 @ 1mA, 5V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 5mA | 150mV @ 500µA, 10mA |
| Current - Collector Cutoff (Max) | 500nA (ICBO) | 1µA |
| Frequency - Transition | 250 MHz | 250 MHz |
| Power - Max | 150 mW | 250 mW |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOT-723 | SC-101, SOT-883 |
| Supplier Device Package | VMT3 | SOT-883 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Both DTC124TMT2L and PDTC124TM,315 demonstrate active product status and ROHS3 compliance, along with identical MSL 1 ratings and REACH unaffected status. Selection between parts can be performed according to these electrical and regulatory parameters as provided. Package type and mechanical dimensions must be verified to ensure direct compatibility.
Frequently Asked Questions (FAQ)
Q1: What are the essential parameters for selecting a substitute for DTC124TMT2L in the BJT category?
A1: Substitutes must match transistor type (NPN - Pre-Biased), maximum collector current, breakdown voltage, base resistor value, minimum DC current gain, frequency, power rating, cutoff and saturation currents, mounting type, and must comply with relevant RoHS and REACH standards.
Q2: Is package compatibility required for substitution between DTC124TMT2L and PDTC124TM,315?
A2: Yes. Mechanical and package compatibility—such as SOT-723 versus SC-101/SOT-883—must match the application requirements for direct interchange on the PCB.
Q3: Do both parts offer the same environmental compliance and product status?
A3: Both DTC124TMT2L and PDTC124TM,315 are active products with ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited).
Q4: Can the substitute part be used in automotive applications?
A4: The PDTC124TM,315 includes an automotive grade (AEC-Q100) qualification, while DTC124TMT2L does not indicate such qualification in the provided parameters. Use as specified by the listed compliance.
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