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Nexperia USA Inc. BAT120A,115
- Part No.:
- BAT120A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BAT120A,115.pdf
- Description:
- DIODE ARRAY SCHOT 25V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:768
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Product details
Overview
BAT120A,115 from NXP Semiconductors is a Schottky barrier double diode in SOT223 package, configured as common-anode dual diode (pins 1=k1, 3=k2, 4=a1/a2), with 25 V reverse voltage rating, 1 A continuous forward current, 400–450 mV forward voltage at 1 A, and 100 K/W thermal resistance - used for polarity protection and low-power SMPS rectification.
For engineers reviewing the BAT120A,115 datasheet, BAT120A,115 pinout, BAT120A,115 application, or BAT120A,115 equivalent, key selection factors include its common-anode dual-diode topology, surge current capability (10 A non-repetitive), low VF at high temperature, guard ring protection, and SOT223 thermal performance in space-constrained DC/DC designs.
Technical Context
This device integrates two planar Schottky junctions in a single SOT223 thermally enhanced plastic package with an exposed collector pad. Its common-anode configuration enables dual-path rectification or redundant polarity protection from one node.
The diodes feature guard ring protection to suppress edge breakdown and sustain reliable operation under repetitive surge stress (IFSM = 10 A, tp < 10 ms). Thermal resistance (Rth j-a = 100 K/W) is specified under standard SOT223 mounting conditions, supporting stable operation up to Tj = 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 25 V - maximum DC blocking capability per diode; defines safe operating range in polarity protection circuits. |
| IF (Continuous Forward Current) | 1 A - steady-state current handling per diode; supports compact low-power SMPS output stages. |
| VF @ 1 A | 400–450 mV - low conduction loss enabling >90% efficiency in 3.3–5 V output rectifiers. |
| IFSM (Surge Current) | 10 A (tp < 10 ms) - withstands inrush and transient overloads without degradation. |
| IR @ 20 V | 80–500 μA - low leakage preserves battery life in always-on polarity protection paths. |
| Rth j-a | 100 K/W - thermal resistance under standard SOT223 mounting; requires PCB copper area for heat spreading. |
Pinout & Package
SOT223 (SC-73) surface-mount plastic package with exposed thermal pad (pin 2 = n.c., electrically isolated); 4-lead outline optimized for power dissipation and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 (k1) | First diode cathode; connects to input rail in polarity protection or SMPS secondary. |
| 2 | No Connection | Electrically isolated thermal pad anchor; must be soldered to PCB ground plane for thermal relief. |
| 3 | Cathode 2 (k2) | Second diode cathode; enables dual-output rectification or redundant protection paths. |
| 4 | Common Anode (a1/a2) | Shared anode node; ties both diodes to output or system ground reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Suppresses edge breakdown under high dv/dt and reverse bias, improving long-term reliability in noisy environments. |
| Low VF at 100 °C | Forward voltage remains ≤450 mV at elevated junction temperature - critical for thermally dense SMPS layouts. |
| High IFSM capability | 10 A non-repetitive surge rating allows use without derating in applications with frequent cold-start surges. |
| SOT223 thermal pad | Exposed collector pad (pin 2) enables direct PCB copper thermal coupling - reduces ΔT by ~30% vs. standard SOT23. |
Applications
| USB Power Input Protection | Low-Power DC/DC Converter Output Rectification |
|---|---|
Use Scenario: Preventing reverse current flow from USB-powered devices into host ports during hot-plug or fault conditions. IC Role / Device Role / Timing Role: Dual Schottky diode acting as OR-ing and reverse-polarity blocker on VBUS path. Use Value: 400–450 mV VF minimizes voltage drop across protection path, preserving 4.75–5.25 V compliance at 1 A load. | Use Scenario: Rectifying synchronous-buck converter outputs in 3.3 V/1 A embedded power rails. IC Role / Device Role / Timing Role: Common-anode dual diode providing parallel low-loss conduction paths for interleaved or dual-phase outputs. Use Value: 10 A surge rating absorbs peak inductor current transients without latch-up or parametric shift. |
| Redundant 12 V Supply OR-ing | Industrial Sensor Node Polarity Guard |
Use Scenario: Combining two independent 12 V supplies with automatic failover using diode-OR architecture. IC Role / Device Role / Timing Role: Dual cathode configuration enables independent supply inputs feeding shared load via common anode. Use Value: Matched VF between diodes ensures balanced current sharing (<5% imbalance at 500 mA each) and avoids thermal runaway. | Use Scenario: Protecting battery-backed sensor nodes from accidental reverse battery insertion. IC Role / Device Role / Timing Role: Single-device dual-diode guard on main power entry, with cathodes tied to battery terminals and anode to system ground. Use Value: Guard ring design prevents leakage-induced discharge during storage (IR ≤500 μA at 20 V, 25 °C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky double diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T1G | Same SOT223 package, common-anode, but rated for 40 V VR and 2 A IF; VF = 490 mV @ 2 A. | Higher voltage/current headroom; less suitable for ultra-low-drop 3.3 V systems due to higher VF. | Select when designing for 12–24 V inputs or needing >1 A continuous current per diode. |
| Vishay SS22A | SOT23 package, single diode, 25 V/2 A; no dual configuration or common-anode topology. | Requires two devices for dual-path function; lacks thermal pad and surge robustness of SOT223. | Only viable if board space permits duplication and thermal budget allows higher Rth j-a (~200 K/W). |
Compared with NSS40201MR6T1G and SS22A, BAT120A,115 uniquely balances low VF (400–450 mV), dual common-anode integration, and SOT223 thermal performance - making it optimal for space- and efficiency-critical 3.3–5 V SMPS and protection circuits where single-package dual functionality is required.
Availability
BAT120A,115 is available at Aetrix Electronics and suitable for low-power switched-mode power supplies, polarity protection circuits, and dual-rail rectification requiring stable component supply and consistent SOT223 thermal behavior.
Supply support for BAT120A,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The BAT120 series belongs to NXP's discrete Schottky diode product line, engineered specifically for high-efficiency, thermally constrained rectification and protection in compact power conversion systems.
FAQ
What is the pin 2 function on BAT120A,115?
Pin 2 is a no-connect (n.c.) terminal that serves as the exposed thermal pad in the SOT223 package. It is electrically isolated from internal circuitry but must be soldered to a PCB copper pour for effective heat dissipation. Do not tie it to any signal or power net.
Can BAT120A,115 replace BAT54A in SOT23 footprint designs?
No - BAT120A,115 uses SOT223 (4-lead, 6.7 × 3.7 mm), while BAT54A uses SOT23 (3-lead, 3.0 × 1.4 mm). The packages are physically incompatible, and BAT120A,115's common-anode dual-diode structure differs from BAT54A's dual-common-cathode configuration.
Is BAT120A,115 suitable for automotive applications?
While BAT120A,115 meets AEC-Q101 stress test conditions in some third-party validations, it is not officially qualified to AEC-Q101 per NXP's published product status. For automotive-grade designs, consult NXP's AEC-Q101-qualified Schottky diodes such as PDS340x series.
What is the maximum junction temperature during pulsed operation?
The absolute maximum junction temperature is 125 °C under continuous operation. During pulsed conditions (e.g., IFSM = 10 A, tp < 10 ms), peak Tj may exceed 125 °C briefly, but must remain within the thermal limits defined by the SOA curve in Figure 3 of the datasheet to avoid permanent damage.
BAT120A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 25 V
- Current - Average Rectified (Io) (per Diode):
- 1A (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 450 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 25 V
- Operating Temperature - Junction:
- 125°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BAT120A,115 FAQ
1.How can I place an order for BAT120A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT120A,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 BAT120A,115 reliable?
The price and inventory of BAT120A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT120A,115 is usually 5 days.
3.What payment methods are accepted for BAT120A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT120A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT120A,115?
BAT120A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT120A,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 BAT120A,115?
For technical support, including BAT120A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT120A,115 requirements.
6.How does Aetrix verify that BAT120A,115 is sourced from the original manufacturer or authorized distributors?
All BAT120A,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 BAT120A,115 meets industry standards.
7.What is the process for return or replacement of BAT120A,115?
All BAT120A,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT120A,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 BAT120A,115 part is unused and in its original packaging.
Return procedure for BAT120A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT120A,115 Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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