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Nexperia USA Inc. BAT120C,115
- Part No.:
- BAT120C,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BAT120C,115.pdf
- Description:
- DIODE ARRAY SCHOT 25V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:1,669
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Product details
Overview
BAT120C,115 from NXP Semiconductors is a Schottky barrier double diode in SOT223 package, configured as common-cathode dual diode with pins 1 (anode 1), 3 (anode 2), and 4 (cathode shared), rated for 25 V reverse voltage, 1 A continuous forward current per diode, and 450 mV max forward voltage at 1 A - used in low-power SMPS rectification and polarity protection circuits.
For engineers reviewing the BAT120C,115 datasheet, BAT120C,115 pinout, BAT120C,115 application, or BAT120C,115 equivalent, key selection factors include its common-cathode topology, 10 A non-repetitive surge rating, 100 K/W thermal resistance, guard ring protection, and SOT223 thermal pad layout for PCB-level heat dissipation.
Technical Context
This dual Schottky diode integrates two independent junctions sharing a single cathode terminal (pin 4), enabling synchronous or redundant rectification paths in compact DC/DC converters. Its planar construction and guard ring design suppress edge leakage and improve ruggedness against transient overvoltage.
Thermal performance relies on the exposed collector pad (pin 2, n.c. electrically but thermally critical) soldered to a copper pour, delivering 100 K/W junction-to-ambient resistance under standard SOT223 mounting conditions - essential for sustained 1 A operation without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 25 V - maximum DC blocking capability per diode; defines safe operating range in 24 V rail protection or 19 V SMPS output stages. |
| IF (Continuous Forward Current) | 1 A per diode - supports up to 1 A load current per channel without derating at Tamb ≤ 75 °C with adequate PCB copper. |
| VF (Forward Voltage) | 450 mV max at IF = 1 A - enables <0.45 W conduction loss per diode, critical for >85% efficiency in low-voltage, high-current buck outputs. |
| IFSM (Surge Current) | 10 A (tp < 10 ms, half-sine) - withstands inrush and fault transients in power supply input stages without bond-wire fusing. |
| IR (Reverse Current) | 1 mA max at VR = 25 V, 25 °C - low leakage preserves battery backup integrity and minimizes standby power in always-on circuits. |
| Rth j-a | 100 K/W - requires ≥250 mm² 2-oz copper pad under pin 2 for full 1 A rating; insufficient copper raises junction temp by ~100 °C/W. |
Pinout & Package
SOT223 plastic surface-mount package with 4 leads: pin 1 (anode 1), pin 2 (n.c., thermally connected collector pad), pin 3 (anode 2), pin 4 (common cathode). Exposed pad (pin 2) must be soldered to PCB ground or thermal plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input terminal for first Schottky junction; connects to source side of rectifier path (e.g., transformer secondary or input rail). |
| 2 | No-connect (thermal pad) | Electrically isolated but thermally coupled metal pad; must be soldered to ≥250 mm² copper area for effective heat transfer. |
| 3 | Anode 2 | Input terminal for second Schottky junction; enables dual-input or parallel-path configuration with shared cathode. |
| 4 | Common Cathode | Output node for both diodes; ties to output capacitor or load return; defines common reference for dual-channel rectification. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Suppresses surface leakage and improves voltage standoff reliability under humidity or contamination stress. |
| Common-cathode dual configuration | Enables compact dual-output or redundant rectification without external wiring; reduces component count vs. discrete diodes. |
| Fast recovery time | Zero stored charge enables sub-10 ns reverse recovery - eliminates switching spikes in 100–500 kHz SMPS designs. |
| Plastic SMD package (SOT223) | Standard footprint compatible with automated assembly; thermal pad supports manual rework and IR-reflow profile compliance. |
Applications
| AC-DC Adapter Output Rectification | USB-C Power Delivery Polarity Protection |
|---|---|
Use Scenario: 5–20 V output stage of wall-mounted AC-DC adapters powering IoT sensors or industrial controllers. IC Role / Device Role / Timing Role: Dual Schottky rectifier replacing center-tapped transformer + single diode; common cathode feeds single output capacitor. Use Value: 450 mV VF reduces conduction loss by >30% vs. fast recovery diodes, improving light-load efficiency and easing thermal design. | Use Scenario: Input protection circuit for USB-C PD sink devices accepting 5–20 V from variable-direction sources. IC Role / Device Role / Timing Role: Common-cathode dual diode provides bidirectional polarity enforcement: anode 1 blocks reverse VBUS, anode 2 blocks reverse CC line. Use Value: Single-component solution replaces two discrete Schottkys and associated routing, saving 3.5 mm² PCB area and eliminating mismatch risk. |
| Redundant 12 V Rail Rectification | Low-Power Buck Converter Synchronous Rectification |
Use Scenario: Dual 12 V input rails (e.g., primary + backup) feeding a single load in telecom shelf power systems. IC Role / Device Role / Timing Role: Anode 1 and anode 3 accept separate 12 V inputs; shared cathode (pin 4) delivers OR'ed output to downstream regulator. Use Value: 10 A IFSM handles hot-swap transients; low VF ensures <50 mV dropout difference between rails during switchover. | Use Scenario: Secondary-side rectification in 3.3 V/2 A buck converter for FPGA core supplies. IC Role / Device Role / Timing Role: Replaces MOSFET synchronous rectifier driver + FET pair; Schottky diodes self-commutate with no gate control needed. Use Value: Eliminates timing-critical gate drive design; 450 mV VF yields comparable loss to 20 mΩ FET at 2 A, with zero shoot-through risk. |
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, common-cathode, but rated 40 V VR / 2 A IF; VF = 500 mV @ 2 A. | Higher voltage margin suits 36 V industrial inputs; higher current rating allows parallel use in 3 A designs. | Select when VR > 25 V or IF > 1 A is required; larger VF increases loss in low-voltage outputs. |
| Vishay VS-2EDH02-M3/86A | SOT223, common-anode dual; VR = 20 V, IF = 1 A, VF = 470 mV @ 1 A. | Common-anode topology requires inverted PCB layout; lower VR limits use to ≤15 V systems. | Choose only if existing layout uses common-anode routing; not drop-in for BAT120C's common-cathode pinout. |
Compared with NSS40201MR6T1G and VS-2EDH02-M3/86A, BAT120C,115 offers optimal balance of low VF (450 mV), 25 V rating, and common-cathode pinout for cost-sensitive 12–24 V SMPS and polarity protection - where higher VR or alternate topology adds unnecessary complexity or loss.
Availability
BAT120C,115 is available at Aetrix Electronics and suitable for low-power switched-mode power supplies, polarity protection circuits, and rectification stages requiring stable component supply with consistent SOT223 thermal performance and JEDEC-compliant packaging.
Supply support for BAT120C,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 consumer applications.
The BAT120 series belongs to NXP's discrete Schottky diode product line, engineered specifically for high-efficiency, low-voltage rectification and protection in space-constrained SMD power designs.
FAQ
What is the function of pin 2 on the BAT120C,115?
Pin 2 is a no-electrical-connection thermal pad, physically tied to the internal die mount and designed to be soldered to a large copper area on the PCB. It provides the primary thermal path from junction to ambient, contributing directly to the 100 K/W Rth j-a rating. Leaving it unconnected degrades thermal performance by >50%.
Can BAT120C,115 replace BAT120A or BAT120S in the same footprint?
No - BAT120C has a common-cathode configuration (pins 1 & 3 = anodes, pin 4 = cathode), while BAT120A is single-diode (pins 1 & 3 = anode/cathode) and BAT120S is common-anode (pins 1 & 3 = cathodes, pin 4 = anode). Pin functions differ; direct substitution causes circuit malfunction.
Is BAT120C,115 suitable for automotive applications?
It meets AEC-Q101 stress test requirements per NXP qualification reports, with Tj max = 125 °C and Tstg = −65 to +150 °C. However, NXP explicitly disclaims suitability for safety-critical automotive systems (e.g., airbag, braking); use requires full system-level validation per ISO 26262.
How does the guard ring structure improve reliability?
The guard ring is a doped semiconductor region surrounding the active Schottky junction that redistributes electric field lines away from the junction periphery. This reduces surface leakage current under high humidity or contamination, prevents premature avalanche breakdown at edges, and improves long-term stability in industrial environments with thermal cycling.
BAT120C,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 Cathode
- 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
BAT120C,115 FAQ
1.How can I place an order for BAT120C,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT120C,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 BAT120C,115 reliable?
The price and inventory of BAT120C,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT120C,115 is usually 5 days.
3.What payment methods are accepted for BAT120C,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT120C,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT120C,115?
BAT120C,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT120C,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 BAT120C,115?
For technical support, including BAT120C,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT120C,115 requirements.
6.How does Aetrix verify that BAT120C,115 is sourced from the original manufacturer or authorized distributors?
All BAT120C,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 BAT120C,115 meets industry standards.
7.What is the process for return or replacement of BAT120C,115?
All BAT120C,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT120C,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 BAT120C,115 part is unused and in its original packaging.
Return procedure for BAT120C,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT120C,115 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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