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Nexperia USA Inc. BAT120S,115
- Part No.:
- BAT120S,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BAT120S,115.pdf
- Description:
- DIODE ARRAY SCHOT 25V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:7,400
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Product details
Overview
BAT120S,115 from NXP Semiconductors is a Schottky barrier double diode in SOT223 package, configured as a common-cathode dual diode with pins 1 (anode 1), 3 (anode 2), and 4 (cathode shared). It delivers 1 A continuous forward current, 25 V reverse voltage rating, and 400–450 mV forward voltage at 1 A, enabling efficient polarity protection and low-loss rectification in compact DC/DC converters.
For engineers reviewing the BAT120S,115 datasheet, BAT120S,115 pinout, BAT120S,115 application, or BAT120S,115 equivalent, key selection criteria include its common-cathode topology, 10 A non-repetitive surge capability, thermal resistance of 100 K/W, and suitability for space-constrained industrial power rails requiring fast recovery and low VF.
Technical Context
The BAT120S,115 integrates two planar Schottky junctions in a single SOT223 thermally enhanced plastic package with an exposed collector pad. Its guard ring protection ensures stable reverse leakage up to 1 mA at 25 V and 125 °C junction temperature.
Designed for high-efficiency switching operation, it exhibits fast recovery (inherently near-zero reverse recovery time), low switching losses due to absence of minority-carrier storage, and capacitance of 100 pF at 4 V reverse bias - critical for EMI-sensitive SMPS input stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VF @ 1 A | 400–450 mV: Enables <0.45 W conduction loss per diode at full load, reducing thermal burden in 5–12 V output rails. |
| VR | 25 V: Supports input rectification for 24 V nominal systems with 20 % tolerance margin. |
| IF(cont) | 1 A per diode: Allows dual-path 1 A output or redundant 500 mA paths in fault-tolerant designs. |
| IFSM | 10 A (tp < 10 ms): Absorbs inrush surges during hot-plug or capacitor charging without degradation. |
| IR @ 25 V | ≤1 mA at 25 °C: Limits standby power loss in always-on polarity protection circuits. |
| Rth j-a | 100 K/W: Requires minimal PCB copper area (≥1 cm² thermal pad) to maintain Tj < 125 °C at 1 A. |
Pinout & Package
SOT223 (SC-73) surface-mount package with 4 leads: lead 1 = anode 1, lead 2 = no connection, lead 3 = anode 2, lead 4 = common cathode. Exposed thermal pad on underside enhances heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input path for first diode; connects to source rail in dual-input redundancy or split-output configuration. |
| 2 | No connection | Electrically isolated; must not be soldered or tied to any net to avoid mechanical stress or parasitic coupling. |
| 3 | Anode 2 | Independent input path for second diode; enables OR-ing or dual-source selection with shared cathode output. |
| 4 | Common cathode | Single output node; routes combined forward current to load or filter capacitor; ties directly to ground plane for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Prevents edge breakdown under high dv/dt, ensuring stable IR performance across temperature and voltage stress. |
| Low VF at high IF | 400–450 mV @ 1 A reduces conduction loss by >30 % vs. standard silicon diodes in 5–12 V outputs. |
| Fast recovery (Schottky) | Zero stored charge eliminates reverse recovery spikes, simplifying EMI filtering in 100–500 kHz SMPS. |
| SOT223 thermal pad | Exposed copper pad lowers thermal resistance by ~40 % vs. standard SOT23, supporting 1 A continuous operation. |
Applications
| Redundant Power Input | Polarity Protection |
|---|---|
Use Scenario: Dual 12 V inputs feeding a single 12 V system bus with automatic source selection. IC Role / Device Role / Timing Role: Common-cathode dual Schottky diode acting as passive OR-ing element with minimal forward drop. Use Value: Enables seamless switchover between sources while limiting voltage loss to ≤450 mV per path at 1 A. | Use Scenario: Reverse-voltage protection on a 5 V USB-powered microcontroller board. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current when connector is miswired. Use Value: Prevents damage with only 260–300 mV drop at 100 mA, preserving >94 % of supply voltage. |
| Low-Power SMPS Output Rectifier | Hot-Swap Circuit Protection |
Use Scenario: Secondary-side rectification in a 3.3 V, 1 A flyback converter. IC Role / Device Role / Timing Role: Low-loss synchronous rectifier replacement in cost-sensitive non-isolated DC/DC. Use Value: Delivers 400–450 mV VF at full load, cutting conduction loss by 65 % vs. 1N5819. | Use Scenario: Inrush limiting and reverse-current blocking during live insertion of a PCIe add-in card. IC Role / Device Role / Timing Role: Surge-rated Schottky diode absorbing 10 A transient while clamping reverse voltage. Use Value: Survives repeated hot-plug events without parameter drift due to guard ring and robust metallization. |
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 | Common-anode configuration; 40 V VR; 2 A IF; VF = 490 mV @ 2 A. | Requires circuit redesign for cathode-referenced output; better suited for higher-voltage 24–48 V rails. | Select when VR margin >20 V is required and layout allows anode-common topology. |
| Vishay SS22 | Single Schottky diode; 20 V VR; 2 A IF; VF = 500 mV @ 2 A; DO-214AC package. | Lacks dual-diode integration; requires two devices and extra board area for dual-path use. | Choose only for discrete replacement where dual functionality is not needed and thermal pad is not critical. |
Compared with NSS40201MR6T1G and SS22, BAT120S,115 uniquely provides common-cathode dual integration in thermally optimized SOT223, delivering lowest VF per amp in 25 V-class applications where shared output node and compact footprint are mandatory.
Availability
BAT120S,115 is available at Aetrix Electronics and suitable for low-power switched-mode power supplies, polarity protection circuits, and rectification modules requiring stable component supply and long-term industrial availability.
Supply support for BAT120S,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, low-VF rectification and protection in space-constrained power management systems.
FAQ
What is the pin configuration of BAT120S,115?
Pin 1 is anode 1, pin 2 is no connection (NC), pin 3 is anode 2, and pin 4 is the common cathode. This common-cathode arrangement allows dual-input or dual-output configurations sharing one output node. Pin 2 must remain unconnected to avoid mechanical stress or unintended coupling.
Can BAT120S,115 replace BAT120A or BAT120C?
No - BAT120S has a common-cathode configuration, whereas BAT120A is common-anode and BAT120C is series-connected. Their internal topologies differ fundamentally: swapping them without circuit revision causes functional failure or short circuits. Always verify pin mapping and schematic symbol before substitution.
What is the maximum junction temperature and how is it managed?
The absolute maximum junction temperature is 125 °C. With Rth j-a = 100 K/W, maintaining Tj ≤ 125 °C at 1 A requires ambient ≤ 25 °C unless additional copper area or airflow is provided. Use the exposed thermal pad on the SOT223 package and connect it to a ≥1 cm² internal ground plane for effective heat transfer.
Is BAT120S,115 suitable for automotive applications?
While BAT120S,115 meets AEC-Q200 stress test guidelines for temperature cycling and humidity, it is not officially qualified to AEC-Q101. For automotive-grade deployment, consult NXP's automotive-qualified equivalents such as the PDS120S series, which include extended temperature screening and PPAP documentation.
BAT120S,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 Series Connection
- 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
BAT120S,115 FAQ
1.How can I place an order for BAT120S,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT120S,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 BAT120S,115 reliable?
The price and inventory of BAT120S,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT120S,115 is usually 5 days.
3.What payment methods are accepted for BAT120S,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT120S,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT120S,115?
BAT120S,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT120S,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 BAT120S,115?
For technical support, including BAT120S,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT120S,115 requirements.
6.How does Aetrix verify that BAT120S,115 is sourced from the original manufacturer or authorized distributors?
All BAT120S,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 BAT120S,115 meets industry standards.
7.What is the process for return or replacement of BAT120S,115?
All BAT120S,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT120S,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 BAT120S,115 part is unused and in its original packaging.
Return procedure for BAT120S,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT120S,115 Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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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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