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DTA124EUBTL Equivalent & Substitute Parts Reference
Part Overview
The Rohm Semiconductor DTA124EUBTL is a pre-biased PNP bipolar junction transistor (BJT) in surface mount UMT3F packaging, rated for a 50 V collector-emitter breakdown, 30 mA collector current, 250 MHz transition frequency, and 200 mW power dissipation. It features integrated base and emitter resistors for simplified biasing and is ROHS3 compliant. The product status is “Not For New Designs,” indicating that engineers may need to identify equivalent or substitute models to ensure ongoing design support and supply continuity in the transistors, bipolar BJT category.
Substiute Parts
Key Parameters
| Parameter | DTA124EUBTL |
|---|---|
| Transistor Type | PNP - Pre-Biased |
| Current - Collector (Ic) (Max) | 30 mA |
| Voltage - Collector Emitter Breakdown (Max) | 50 V |
| Resistor - Base (R1) | 22 kOhms |
| Resistor - Emitter Base (R2) | 22 kOhms |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 56 @ 5mA, 5V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 10mA |
| Current - Collector Cutoff (Max) | 500nA |
| Frequency - Transition | 250 MHz |
| Power - Max | 200 mW |
| Mounting Type | Surface Mount |
| Package / Case | SC-85 |
| Supplier Device Package | UMT3F |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
Substitute Part Grouping Explanation
Substitute parts are grouped strictly by matching functional and electrical parameters critical to the transistors, bipolar BJT category. These include transistor polarity (PNP - pre-biased), maximum collector-emitter voltage, maximum collector current, integrated base and emitter resistor values, DC current gain, maximum power dissipation, mounting method, environmental compliance, and package style. The selection criteria ensure that all substitute parts remain within the allowable limits for these primary parameters.
Parameter Comparison
| Parameter | DTA124EUBTL (Rohm Semiconductor) |
PDTA124EU,135 (Nexperia USA Inc.) |
|---|---|---|
| Transistor Type | PNP - Pre-Biased | PNP - Pre-Biased |
| Current - Collector (Ic) (Max) | 30 mA | 100 mA |
| Voltage - Collector Emitter Breakdown (Max) | 50 V | 50 V |
| Resistor - Base (R1) | 22 kOhms | 22 kOhms |
| Resistor - Emitter Base (R2) | 22 kOhms | 22 kOhms |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 56 @ 5mA, 5V | 60 @ 5mA, 5V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 10mA | 150mV @ 500µA, 10mA |
| Current - Collector Cutoff (Max) | 500nA | 100nA |
| Frequency - Transition | 250 MHz | 200 MHz |
| Power - Max | 200 mW | 200 mW |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SC-85 | SC-70, SOT-323 |
| Supplier Device Package | UMT3F | SOT-323 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
Engineering Selection Recommendations
DTA124EUBTL is designated as "Not For New Designs," necessitating selection of substitute parts for ongoing or new projects. PDTA124EU,135 from Nexperia USA Inc. is fully ROHS3 compliant, REACH unaffected, and carries equivalent environmental certifications (Moisture Sensitivity Level 1, ECCN EAR99). Both parts are in the transistors, bipolar BJT category and offer matching principal electrical and compliance characteristics.
Frequently Asked Questions (FAQ)
Q: Which electrical parameters are most critical for substituting within the transistors, bipolar BJT category?
A: Transistor type (PNP - Pre-Biased), collector-emitter breakdown voltage, collector current, base/emitter resistor values, DC current gain, power dissipation, and package form factor are the primary substitution criteria.
Q: Are PDTA124EU,135 and DTA124EUBTL compatible in terms of compliance?
A: Both are ROHS3 compliant, REACH unaffected, carry ECCN EAR99, and have MSL 1 (Unlimited).
Q: Is there any difference in mounting style between DTA124EUBTL and PDTA124EU,135?
A: Both are surface mount devices, but DTA124EUBTL uses UMT3F (SC-85) and PDTA124EU,135 uses SOT-323 (SC-70, SOT-323).
Q: Is the substitute part's maximum collector current within the allowable specification for replacing DTA124EUBTL?
A: PDTA124EU,135 allows up to 100 mA collector current, which is above the 30 mA rating of DTA124EUBTL, staying within safe operational limits for substitution.
Q: Will package differences affect board-level compatibility?
A: DTA124EUBTL and PDTA124EU,135 feature different physical packages; confirm footprint compatibility with existing PCB layouts when substituting.
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