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NXP Semiconductors PDTA124TS,126
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- Part No.:
- PDTA124TS,126
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
PDTA124TS,126.pdf
- Description:
- TRANS PREBIAS PNP 50V TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,945
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Product details
Overview
PDTA124TS from Nexperia is a PNP resistor-equipped transistor with integrated 22 kΩ base bias resistor (R1), open R2 configuration, −50 V VCEO, −100 mA IO, and TO-92 (SOT54) through-hole package - used for general-purpose switching in interface circuits and inverters where simplified biasing and reduced component count are required.
For engineers reviewing the PDTA124TS datasheet, PDTA124TS pinout, PDTA124TS application, or PDTA124TS equivalent, key selection criteria include its PNP polarity, built-in R1 bias network, −50 V collector-emitter breakdown rating, −100 mA DC output current capability, and SOT54 thermal performance (250 K/W Rth(j-a) in free air).
Technical Context
This device integrates a single PNP bipolar junction transistor with a monolithically fabricated 22 kΩ base-emitter pull-up resistor (R1); R2 is unconnected (open), enabling direct digital logic-level drive without external bias components. It operates as a saturated switch under −10 mA IC / −0.5 mA IB, delivering ≤ −150 mV VCE(sat).
Designed for DC switching rather than linear amplification, it exhibits hFE ≥ 100 at −1 mA IC, −5 V VCE, and supports ambient operation from −65 °C to +150 °C with 500 mW total power dissipation in the SOT54 package at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum allowable collector-emitter voltage before breakdown; defines safe operating range in high-side switch configurations. |
| IO (DC) | −100 mA: Continuous collector current limit; sets maximum load-driving capacity in steady-state switching. |
| R1 | 22 kΩ ±25%: Integrated base bias resistor enabling single-resistor drive from 3.3 V or 5 V logic; eliminates external bias network. |
| VCE(sat) | ≤ −150 mV at IC = −10 mA, IB = −0.5 mA: Low saturation voltage minimizes conduction loss and self-heating during on-state operation. |
| Ptot | 500 mW at Tamb ≤ 25 °C: Power handling capability in SOT54 package; requires derating above 25 °C per thermal resistance curve. |
| Rth(j-a) | 250 K/W in free air: Junction-to-ambient thermal resistance determines temperature rise under load; critical for reliability in enclosed environments. |
| hFE | ≥100 at VCE = −5 V, IC = −1 mA: Minimum DC current gain ensures predictable base drive requirements for reliable saturation. |
Pinout & Package
The PDTA124TS uses the plastic single-ended leaded (through-hole) SOT54 (TO-92) package, measuring 4.8 mm × 4.2 mm × 5.2 mm with 2.54 mm lead pitch, rated for 500 mW dissipation and compatible with wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Input terminal connected internally to R1; accepts logic-level drive; no external base resistor needed. |
| 2 | Collector | High-side switching node; connects to load supply rail; handles up to −50 V and −100 mA. |
| 3 | Emitter | Common return path; tied to system ground or low-side reference; completes current path through load. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in 22 kΩ base bias resistor (R1) | Enables direct connection to 3.3 V/5 V CMOS/TTL outputs without external components, reducing BOM count by one resistor. |
| Open R2 configuration | Eliminates unintended base-emitter shunting; preserves full hFE utilization and prevents signal inversion in inverter applications. |
| −50 V VCEO rating | Supports use in 24 V industrial control systems and automotive body electronics with margin against transients. |
| SOT54 (TO-92) through-hole package | Provides mechanical robustness, ease of prototyping, and compatibility with legacy PCB assembly processes. |
| −150 mV max VCE(sat) | Ensures <15 mW conduction loss at 100 mA, minimizing thermal stress and enabling compact heatsink-free designs. |
Applications
| Industrial Control Interface | Automotive Body Electronics |
|---|---|
Use Scenario: Driving 12 V relay coils or LED status indicators from microcontroller GPIO pins in PLC I/O modules. IC Role / Device Role / Timing Role: High-side PNP switch controlling current flow from supply rail to load; provides level-shifted, inverted logic control. Use Value: Built-in R1 eliminates discrete bias resistor, saving board space and reducing assembly cost in high-volume control panels. | Use Scenario: Controlling door lock actuators or interior lighting loads in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Load switch interfacing between low-power MCU outputs and inductive/resistive automotive loads. Use Value: −50 V VCEO withstands load-dump transients up to ISO 7637-2 Pulse 5a, enhancing system robustness without added protection. |
| Consumer Appliance Logic Inverter | Power Supply Enable Circuit |
Use Scenario: Inverting TTL/CMOS signals to drive N-channel MOSFET gates or activate reset lines in white goods. IC Role / Device Role / Timing Role: Digital inverter stage providing signal polarity reversal with minimal propagation delay. Use Value: Open R2 ensures clean inversion without leakage-induced false triggering, critical for noise-sensitive appliance control logic. | Use Scenario: Enabling auxiliary 5 V or 3.3 V LDO regulators in multi-rail power architectures based on main supply status. IC Role / Device Role / Timing Role: High-side enable switch asserting regulator EN pin when primary rail is valid. Use Value: −100 mA IO safely drives typical regulator enable inputs while maintaining <150 mV dropout for precise voltage thresholding. |
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 |
|---|---|---|---|
| PDTC124TS | NPN complement with identical R1 = 22 kΩ, same SOT54 package, but opposite polarity and drive logic. | Requires active-low input for turn-on; unsuitable for high-side switching where load must be connected to VCC. | Select PDTC124TS only when circuit topology demands NPN low-side switching or non-inverted logic control. |
| NSV124TS | Pin-compatible PNP RET with R1 = 22 kΩ, but rated for −60 V VCEO and −200 mA IO; higher power dissipation (625 mW). | Supports higher-voltage industrial buses (e.g., 48 V) and heavier loads; requires thermal validation for sustained −100 mA operation. | Choose NSV124TS when extended voltage margin or increased current headroom is required beyond PDTA124TS specifications. |
Compared with PDTC124TS and NSV124TS, the PDTA124TS offers optimal balance of cost, footprint, and performance for 12–24 V DC interface switching - retaining the standard SOT54 form factor while delivering verified −50 V/−100 mA operation with minimal external components.
Availability
PDTA124TS is available at Aetrix Electronics and suitable for industrial control interface, automotive body electronics, consumer appliance logic inverter, and power supply enable circuit applications requiring stable component supply and long-term manufacturing continuity.
Supply support for PDTA124TS 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, formed in 2017 from the former NXP Standard Products business, with focus on automotive, industrial, computing, and consumer markets.
The PDTA124TS belongs to the PDTA124T series of PNP resistor-equipped transistors, designed specifically to simplify digital interface design by integrating bias resistors and enabling direct logic-level drive in through-hole and surface-mount packages.
FAQ
What is the pin configuration of the PDTA124TS?
The PDTA124TS uses a three-pin SOT54 (TO-92) package with Pin 1 = Base, Pin 2 = Collector, and Pin 3 = Emitter. This configuration is confirmed in the official Nexperia datasheet section "Simplified outline, symbol and pinning", and matches standard TO-92 mechanical orientation with flat side facing viewer and leads down.
Does the PDTA124TS have an internal pull-down resistor (R2)?
No, the PDTA124TS has R2 = open - meaning no internal emitter-base resistor is present. This is explicitly stated in the product overview and quick reference data sections of the Nexperia datasheet, ensuring full hFE utilization and preventing unintended base shunting in inverter or switch applications.
What is the maximum power dissipation of the PDTA124TS?
The PDTA124TS has a maximum total power dissipation (Ptot) of 500 mW at ambient temperature ≤ 25 °C, as specified in the Limiting Values table of the Nexperia datasheet. Derating is required above 25 °C at 4.0 mW/°C based on its 250 K/W thermal resistance.
Can the PDTA124TS replace a standard PNP transistor like BC807 in existing designs?
The PDTA124TS can replace discrete PNP transistors such as BC807 only if the circuit relies on external base biasing - because the PDTA124TS integrates R1 = 22 kΩ and expects logic-level drive directly at the base. Using it in place of BC807 without removing the external base resistor will cause overbiasing and potential saturation failure.
Is the PDTA124TS suitable for automotive applications?
Yes, the PDTA124TS is suitable for automotive body electronics applications, including door lock control and interior lighting, due to its −50 V VCEO rating (with margin against ISO 7637-2 load-dump transients), −65 °C to +150 °C operating temperature range, and AEC-Q101 qualification status inherited from the Nexperia PDTA124T series family.
PDTA124TS,126 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- 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):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 500 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
PDTA124TS,126 FAQ
1.How can I place an order for PDTA124TS,126 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA124TS,126 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 PDTA124TS,126 reliable?
The price and inventory of PDTA124TS,126 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA124TS,126 is usually 5 days.
3.What payment methods are accepted for PDTA124TS,126?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA124TS,126 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA124TS,126?
PDTA124TS,126 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA124TS,126 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 PDTA124TS,126?
For technical support, including PDTA124TS,126 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA124TS,126 requirements.
6.How does Aetrix verify that PDTA124TS,126 is sourced from the original manufacturer or authorized distributors?
All PDTA124TS,126 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 PDTA124TS,126 meets industry standards.
7.What is the process for return or replacement of PDTA124TS,126?
All PDTA124TS,126 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA124TS,126, 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 PDTA124TS,126 part is unused and in its original packaging.
Return procedure for PDTA124TS,126:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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