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Nexperia USA Inc. 2PD1820AR,115
- Part No.:
- 2PD1820AR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
2PD1820AR,115.pdf
- Description:
- TRANS NPN 50V 0.5A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:9,883
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Product details
Overview
2PD1820AR from Nexperia is an NPN general-purpose transistor in SOT323 (SC-70) package, rated for 50 V VCEO, 500 mA IC, and 600 mV VCEsat at 300 mA/30 mA drive; used in portable equipment switching and amplification circuits.
For engineers reviewing the 2PD1820AR datasheet, 2PD1820AR pinout, 2PD1820AR application, or 2PD1820AR equivalent, this page delivers verified electrical specs, thermal resistance (625 K/W), hFE range (120–240 @ 150 mA), package dimensions, and real-world use context for compact DC switching and low-power analog gain stages.
Technical Context
This device operates as a silicon NPN bipolar junction transistor with fixed three-terminal topology (base-emitter-collector), optimized for linear amplification and saturated switching in low-voltage, low-current signal paths. Its 150 MHz fT supports audio-frequency and low-speed digital edge control.
The 2PD1820AR exhibits low VCEsat (≤600 mV) under 300 mA collector current and 30 mA base drive, enabling efficient on-state conduction in battery-powered systems; its 15 pF Cc at 10 V VCB limits high-frequency parasitic coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage before breakdown in open-base configuration. |
| IC (DC) | 500 mA - Continuous collector current handling capacity at Tamb ≤ 25 °C. |
| VCEsat | 600 mV max @ IC = 300 mA, IB = 30 mA - Low saturation voltage enables minimal power loss in switch-mode operation. |
| hFE | 120–240 @ IC = 150 mA, VCE = 10 V - Confirmed DC current gain range for stable biasing in amplifier designs. |
| fT | 150 MHz - Transition frequency defining usable bandwidth for small-signal amplification up to ~100 MHz. |
| Rth j-a | 625 K/W - Junction-to-ambient thermal resistance on FR4 PCB, dictating maximum power dissipation at given ambient temperature. |
| Cc | 15 pF @ VCB = 10 V, f = 1 MHz - Collector capacitance affecting high-frequency response and Miller effect in common-emitter stages. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.15 mm footprint, 0.95 mm height, 3-lead single-row layout with gull-wing terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input terminal; requires ~30 mA drive for full saturation at 300 mA load. |
| 2 | Emiter | Common reference node in common-emitter configuration; connected to ground or low-impedance return path. |
| 3 | Collector | Output current terminal; handles up to 500 mA DC load with ≤600 mV drop when fully saturated. |
Key Features
| Feature | Design Value |
|---|---|
| High DC current capability | 500 mA continuous collector current supports driving LEDs, relays, and small solenoids directly. |
| Low saturation voltage | 600 mV max ensures <180 mW power loss at 300 mA, critical for battery runtime in portable gear. |
| Stable hFE binning | 120–240 range (2PD1820AR grade) enables predictable bias design without gain compensation circuitry. |
| Compact SOT323 footprint | 1.35 × 1.15 mm area saves PCB space vs. SOT23, ideal for wearables and ultra-thin consumer modules. |
Applications
| Portable Audio Amplifiers | USB-Powered Load Switches |
|---|---|
Use Scenario: Driving 8 Ω speaker loads in Bluetooth earbuds with 3.3 V supply and limited board area. IC Role / Device Role / Timing Role: NPN switch in Class-A or AB output stage, providing current gain and low-distortion signal delivery. Use Value: 600 mV VCEsat minimizes voltage headroom loss, preserving >2.7 V across speaker for adequate acoustic output. | Use Scenario: Enabling/disabling 5 V USB peripheral rails (e.g., sensors, LEDs) via microcontroller GPIO. IC Role / Device Role / Timing Role: Low-side switch controlling power path to downstream ICs with logic-level gate control. Use Value: 500 mA rating and 120–240 hFE allow direct MCU drive without external buffer, reducing BOM count. |
| Low-Voltage Sensor Signal Conditioning | Industrial Pushbutton Interface Circuits |
Use Scenario: Amplifying weak thermistor or photodiode signals in handheld test meters operating from coin cells. IC Role / Device Role / Timing Role: Common-emitter preamplifier stage with fixed bias network for DC-coupled analog gain. Use Value: 150 MHz fT and 15 pF Cc support clean amplification of sub-10 MHz sensor outputs without peaking. | Use Scenario: Debouncing and level-shifting mechanical pushbutton inputs in factory HMIs powered by 24 V DC. IC Role / Device Role / Timing Role: Input translator converting 24 V active-high signals to 3.3 V logic-compatible levels for MCU input pins. Use Value: 50 V VCEO rating provides 2× safety margin over 24 V rail, eliminating need for Zener clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847B,215 | Same SOT323 package; hFE = 200–450 @ 10 mA, lower IC (100 mA) and VCEO (45 V). | Better for low-current signal amplification; unsuitable for 300+ mA switching loads. | Select when gain stability at µA–mA bias dominates over power handling. |
| MMBT2222ALT1G | SOT23 package; hFE = 100–300 @ 150 mA, VCEO = 40 V, VCEsat = 1 V @ 150 mA. | Larger footprint; higher saturation loss reduces efficiency in battery-switching roles. | Choose only if SOT23 compatibility or legacy design reuse is mandatory. |
Compared with BC847B,215 and MMBT2222ALT1G, the 2PD1820AR uniquely balances 500 mA current drive, 50 V rating, and 600 mV saturation in the smallest SOT323 form factor-making it optimal for space-constrained, medium-current portable switching where thermal and voltage margins matter.
Availability
2PD1820AR is available at Aetrix Electronics and suitable for portable audio amplifiers, USB-powered load switches, and low-voltage sensor signal conditioning requiring stable component supply and long-term manufacturability.
Supply support for 2PD1820AR 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 semiconductors, spun off from NXP in 2017, specializing in high-volume, automotive-qualified diodes, transistors, and logic devices.
The 2PD1820AR belongs to Nexperia's general-purpose bipolar transistor family, engineered for cost-sensitive, space-constrained consumer and industrial applications demanding reliable DC switching and analog gain at low voltage.
FAQ
What is the maximum continuous collector current for the 2PD1820AR?
The 2PD1820AR supports 500 mA DC collector current at ambient temperatures ≤25 °C on FR4 PCB, per its Absolute Maximum Ratings table. Derating applies above 25 °C based on Rth j-a = 625 K/W; at 70 °C ambient, max IC drops to approximately 320 mA to maintain Tj ≤ 150 °C.
Does the 2PD1820AR have a PNP complement?
Yes-the PNP complement is the 2PB1219A, also in SOT323 package, with matching voltage ratings (−50 V VECO) and current capability (−500 mA IC). Both share identical pinout (1=base, 2=emitter, 3=collector), enabling direct complementary pair implementation in push-pull or differential stages.
Can the 2PD1820AR be used in RF applications?
No-it is not designed for RF signal processing. While its fT is 150 MHz, the device lacks specified noise figure, S-parameters, or RF linearity data. Its 15 pF collector capacitance and unoptimized doping profile limit utility beyond low-frequency amplification or switching below 10 MHz.
How does the 2PD1820AR's saturation voltage compare to similar SOT323 transistors?
At 300 mA/30 mA drive, its 600 mV VCEsat is 200–300 mV lower than typical SOT323 NPNs like BC847 series (≥800 mV). This reduction lowers conduction loss by ~35% in switching applications, directly extending battery life in portable equipment where duty cycles exceed 10%.
2PD1820AR,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 600mV @ 30mA, 300mA
- Current - Collector Cutoff (Max):
- 10nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 120 @ 150mA, 10V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
2PD1820AR,115 FAQ
1.How can I place an order for 2PD1820AR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 2PD1820AR,115 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 2PD1820AR,115 reliable?
The price and inventory of 2PD1820AR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PD1820AR,115 is usually 5 days.
3.What payment methods are accepted for 2PD1820AR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PD1820AR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2PD1820AR,115?
2PD1820AR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2PD1820AR,115 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 2PD1820AR,115?
For technical support, including 2PD1820AR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PD1820AR,115 requirements.
6.How does Aetrix verify that 2PD1820AR,115 is sourced from the original manufacturer or authorized distributors?
All 2PD1820AR,115 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 2PD1820AR,115 meets industry standards.
7.What is the process for return or replacement of 2PD1820AR,115?
All 2PD1820AR,115 units undergo pre-shipment inspection (PSI). If there is an issue with 2PD1820AR,115, 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 2PD1820AR,115 part is unused and in its original packaging.
Return procedure for 2PD1820AR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2PD1820AR,115 Tags
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MMBT3906LT1G
onsemi
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MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
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MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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