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Nexperia USA Inc. PDTA124ET,235
- Part No.:
- PDTA124ET,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA124ET,235.pdf
- Description:
- TRANS PREBIAS PNP 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,432
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Product details
Overview
PDTA124ET,235 from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 package, designed for digital switching applications with built-in bias resistors R1 = 22 kΩ and R2 = 22 kΩ, −50 V VCEO, −100 mA IO, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTA124ET,235 datasheet, PDTA124ET,235 pinout, PDTA124ET,235 application, or PDTA124ET,235 equivalent, this device serves as a space- and cost-optimized replacement for BC847/BC857-based digital interface circuits requiring simplified biasing and robust thermal performance in compact PCB layouts.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 22 kΩ, R2/R1 = 1.0 typ.) to eliminate external base resistors, enabling direct logic-level drive from microcontrollers or gate drivers. Its −100 mA output current capability supports moderate-load switching while maintaining low saturation voltage (VCE(sat) ≤ −150 mV at IC = −10 mA, IB = −0.5 mA).
The device operates across −65 °C to +150 °C ambient range, features 500 K/W junction-to-ambient thermal resistance on FR4 PCB, and meets AEC-Q101 stress test requirements for automotive-grade reliability-making it suitable for engine control modules, body electronics, and industrial sensor interfaces where board space and assembly cost are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum collector-emitter blocking voltage under open-base conditions; enables safe operation in 24 V automotive systems with margin. |
| IO | −100 mA - Continuous output current rating; supports driving LEDs, small relays, or logic inputs without external current limiting. |
| R1 | 22 kΩ (15.4–28.6 kΩ) - Integrated input bias resistor; eliminates discrete component and reduces BOM count in digital switch designs. |
| VCE(sat) | ≤ −150 mV at IC = −10 mA, IB = −0.5 mA - Low saturation voltage minimizes power loss and heat generation during active conduction. |
| hFE | ≥ 60 at VCE = −5 V, IC = −5 mA - Sufficient DC current gain ensures reliable turn-on with standard logic-level drive. |
| Tj(max) | +150 °C - Maximum junction temperature; allows operation in under-hood environments with adequate PCB copper area. |
| AEC-Q101 | Qualified - Meets automotive stress test requirements for temperature cycling, HTRB, and ESD, supporting functional safety-critical subsystems. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 2.8 mm × 1.4 mm footprint, 1.1 mm height; optimized for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level input signal to enable PNP switching action. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for load current and bias network reference. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode or relay coil) referenced to positive rail. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | R1 = 22 kΩ, R2 = 22 kΩ - Eliminates two external resistors, reducing layout area and pick-and-place steps in automated assembly. |
| Digital switching optimization | VI(on) = −1.7 V typ., VI(off) = −1.1 V typ. - Tight input threshold window ensures clean logic-level compatibility with 3.3 V and 5 V CMOS outputs. |
| Automotive qualification | AEC-Q101 compliant - Validated for temperature cycling, high-temperature reverse bias, and electrostatic discharge per automotive reliability standards. |
| Thermal performance | Rth(j-a) = 500 K/W on FR4 - Enables stable operation up to 100 mA continuous current with minimal heatsinking in standard PCB layouts. |
| Package compatibility | SOT23 footprint - Direct drop-in replacement for legacy BC857-family transistors without redesigning land patterns or stencil apertures. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Driving LED status indicators and small solenoid valves in door modules and lighting controllers. IC Role / Device Role / Timing Role: High-side digital switch controlling 12 V loads with logic-level enable from MCU GPIO. Use Value: Built-in R1/R2 eliminates external bias components, reducing BOM cost by $0.015/unit and saving 1.2 mm² PCB area per channel. |
Use Scenario: Level-shifting and isolating digital signals between 3.3 V microcontrollers and 24 V field sensors. IC Role / Device Role / Timing Role: PNP switch translating low-voltage logic to 24 V open-collector outputs for PLC-compatible inputs. Use Value: −50 V VCEO and AEC-Q101 qualification ensure robustness against load-dump transients and long-term reliability in factory automation cabinets. |
| Consumer Appliance Control Board | Medical Diagnostic Equipment |
|
Use Scenario: Controlling buzzer drivers and display backlight segments in smart home appliances. IC Role / Device Role / Timing Role: Low-power digital switch enabling/disabling current paths with <1 µA leakage in off-state. Use Value: VCE(sat) ≤ −150 mV limits power dissipation to <1.5 mW at 10 mA, eliminating thermal derating concerns on dense control boards. |
Use Scenario: Isolating patient-connected sensor signals from internal digital processing circuitry. IC Role / Device Role / Timing Role: Safe, low-leakage interface switch ensuring <100 nA ICEO at 150 °C junction temperature. Use Value: −100 nA ICEO and −180 µA IEBO guarantee signal integrity and meet IEC 60601-1 creepage/clearance requirements for Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC124ET,215 | NPN complement; same R1/R2 values, SOT23 package, identical thermal specs. | Requires inverted logic drive and low-side load configuration instead of high-side. | Select when load must be grounded and controller output sinks current. |
| BC857BW,115 | Discrete PNP BJT without integrated resistors; requires external RB and RBE. | Higher component count and layout sensitivity; no guaranteed R1/R2 matching or tolerance. | Choose only if precise bias tuning or higher hFE (>110) is required beyond RET specifications. |
Compared with PDTC124ET,215, PDTA124ET,235 offers native high-side switching without level inversion; versus BC857BW,115, it reduces design iteration time and improves production yield by integrating matched bias resistors with ±30% tolerance and validated thermal coupling.
Availability
PDTA124ET,235 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer appliance control boards, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for PDTA124ET,235 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on high-volume, high-reliability components for automotive, industrial, and computing markets.
The PDTA124E series belongs to Nexperia's Resistor-Equipped Transistor product line, engineered specifically to replace discrete BJT + resistor combinations in digital switching applications while meeting AEC-Q101 and JEDEC industrial reliability standards.
FAQ
What is the maximum operating temperature for PDTA124ET,235?
The device supports ambient temperatures from −65 °C to +150 °C, with a maximum junction temperature of +150 °C. At 25 °C ambient, its 250 mW total power dissipation limit and 500 K/W thermal resistance allow continuous −100 mA operation without derating on standard FR4 PCBs with minimal copper area.
Can PDTA124ET,235 replace BC857 in existing designs?
Yes-it uses the same SOT23 package and pinout (pin 1 = base, pin 2 = emitter, pin 3 = collector), but integrates 22 kΩ bias resistors. No layout change is needed; however, verify that the application does not require adjustable base current or higher hFE, as the RET fixes biasing and has lower gain than discrete BC857 variants.
Is wave soldering supported for PDTA124ET,235?
No-reflow soldering is the only recommended method per Nexperia's datasheet. Wave soldering is not qualified and may cause thermal damage due to the device's plastic package construction and internal resistor tolerances. The official footprint (Fig 19) is provided for reflow-only process validation.
What does the marking "*05" indicate on PDTA124ET,235 units?
The "*05" marking denotes the device variant within the PDTA124E series, where "*" is a placeholder for the manufacturing site code and "05" identifies the specific R1/R2 resistor combination (22 kΩ each). This matches the quick reference data in Table 1 and confirms compliance with the PDTA124ET product definition in Rev. 8 of the datasheet.
PDTA124ET,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 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:
- 60 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTA124ET,235 FAQ
1.How can I place an order for PDTA124ET,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA124ET,235 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PDTA124ET,235 reliable?
The price and inventory of PDTA124ET,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA124ET,235 is usually 5 days.
3.What payment methods are accepted for PDTA124ET,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA124ET,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA124ET,235?
PDTA124ET,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA124ET,235 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PDTA124ET,235?
For technical support, including PDTA124ET,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA124ET,235 requirements.
6.How does Aetrix verify that PDTA124ET,235 is sourced from the original manufacturer or authorized distributors?
All PDTA124ET,235 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PDTA124ET,235 meets industry standards.
7.What is the process for return or replacement of PDTA124ET,235?
All PDTA124ET,235 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA124ET,235, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PDTA124ET,235 part is unused and in its original packaging.
Return procedure for PDTA124ET,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA124ET,235 Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
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DDTD113ZC-7-F
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DRDNB16W-7
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Nexperia USA Inc.
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MMUN2211LT1G
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