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Nexperia USA Inc. RB751V40,115
- Part No.:
- RB751V40,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
RB751V40,115.pdf
- Description:
- DIODE SCHOTTKY 40V 120MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:149,310
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Product details
Overview
RB751V40 from Nexperia is a planar Schottky barrier diode with integrated guard ring for stress protection, housed in an SOD323 (SC-76) surface-mount package. It delivers 40 V repetitive peak reverse voltage, 370 mV forward voltage at 1 mA, 2 pF capacitance at 1 V/1 MHz, 0.5 µA reverse leakage at 30 V, and 280 mW power dissipation - enabling ultra-high-speed switching and reverse polarity protection in space-constrained portable electronics.
For engineers reviewing the RB751V40 datasheet, RB751V40 pinout, RB751V40 application, or RB751V40 equivalent, key selection criteria include low VF for efficiency-critical bias networks, sub-2 pF junction capacitance for RF line termination, thermal resistance of 450 K/W on FR4, and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to enhance ruggedness against transient overvoltage and electrostatic stress. Its low-barrier metal-semiconductor junction enables fast carrier injection and recovery, supporting switching speeds beyond 1 GHz in clamping and termination roles.
The device operates across –65 °C to +150 °C ambient temperature, with junction temperature limited to 150 °C. Thermal resistance from junction-to-ambient is 450 K/W under standard FR4 mounting conditions, defining its derating behavior in thermally constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage before breakdown; sets upper limit for clamping and reverse protection applications. |
| VF @ 1 mA | 370 mV - Low forward drop minimizes conduction loss in battery-powered signal paths and bias rails. |
| Cd @ 1 V, 1 MHz | 2 pF - Ultra-low junction capacitance preserves signal integrity in high-frequency line termination and RF detector circuits. |
| IR @ 30 V | 0.5 µA - Low leakage ensures minimal standby current in reverse-polarity protection and hold-up circuits. |
| Ptot | 280 mW - Power dissipation limit on standard FR4 PCB defines maximum continuous forward current derating. |
| Rth(j-a) | 450 K/W - Junction-to-ambient thermal resistance determines temperature rise under load in unheatsinked layouts. |
Pinout & Package
RB751V40 is packaged in the SOD323 (SC-76) surface-mount plastic case, measuring 1.7 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch. The cathode is marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative terminal; marking bar identifies this pin - critical for correct orientation in reverse-polarity protection and clamping configurations. |
| 2 | Anode (A) | Positive terminal; connects to input or supply side in series protection or shunt clamping topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Enhances ESD and transient voltage immunity without external components, improving reliability in handheld and USB-connected devices. |
| Low forward voltage (370 mV) | Reduces power loss in low-voltage bias networks and extends battery life in wearables and IoT sensors. |
| Ultra-low capacitance (2 pF) | Enables clean high-speed signal termination up to UHF frequencies without resonance or distortion. |
| SOD323 footprint | Supports automated placement and reflow in high-volume production while occupying <1.5 mm² board area. |
Applications
| USB Port Protection | RF Line Termination |
|---|---|
|
Use Scenario: Preventing damage from incorrect cable insertion in micro-USB or USB-C receptacles. IC Role / Device Role / Timing Role: Series-connected Schottky diode providing reverse-polarity blocking path with minimal voltage drop. Use Value: 370 mV forward voltage avoids compromising 3.3 V or 5 V bus regulation; 40 V VRRM withstands common-mode transients. |
Use Scenario: Matching impedance and absorbing reflections on 50 Ω RF traces in Bluetooth/Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Shunt-connected diode acting as broadband RF termination load. Use Value: 2 pF capacitance ensures flat frequency response up to 2.4 GHz; low VF enables DC-biasable operation. |
| High-Speed Logic Clamping | Low-Power Sensor Biasing |
|
Use Scenario: Limiting overshoot/undershoot on CMOS I/O lines during hot-plug or level-shifting events. IC Role / Device Role / Timing Role: Fast-turn-on Schottky clamp between signal rail and ground or VCC. Use Value: Sub-nanosecond recovery time prevents latch-up; 0.5 µA leakage avoids loading high-impedance logic nodes. |
Use Scenario: Providing stable forward bias to photodiodes or Hall-effect sensors in battery-operated condition monitoring systems. IC Role / Device Role / Timing Role: Precision current source element in constant-current bias networks. Use Value: Tight 370 mV VF tolerance supports accurate current setting; 150 °C Tj rating allows operation near heat-generating ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230HT1G | Same SOD-323 package; 30 V VRRM, 420 mV VF @ 1 mA, 3.5 pF Cd. | Lower reverse voltage margin; higher capacitance limits use above 1 GHz. | Select when 30 V rating suffices and cost sensitivity outweighs RF performance. |
| Diodes Incorporated SD103AW-7-F | SOD-123 package (larger); 40 V VRRM, 450 mV VF, 5 pF Cd, 350 mW Ptot. | Larger footprint and higher capacitance reduce suitability for ultra-dense or >500 MHz designs. | Choose only if SOD-123 assembly infrastructure exists and thermal margin exceeds 280 mW requirement. |
Compared with NSR0230HT1G and SD103AW-7-F, RB751V40 offers the lowest capacitance (2 pF) and lowest forward voltage (370 mV) in the SOD323 form factor, making it optimal for high-frequency termination and ultra-low-power biasing where board area and signal fidelity are constrained.
Availability
RB751V40 is available at Aetrix Electronics and suitable for USB port protection, RF line termination, high-speed logic clamping, and low-power sensor biasing requiring stable component supply across industrial, consumer, and IoT production programs.
Supply support for RB751V40 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 semiconductor expert specializing in high-performance, reliable discrete, logic, and MOSFET devices, with manufacturing rooted in process innovation and automotive-grade quality systems.
RB751V40 belongs to Nexperia's Schottky diode portfolio designed for high-efficiency, high-speed signal conditioning and protection in portable, wireless, and interface-intensive electronics.
FAQ
Is RB751V40 suitable for automotive applications?
No. Per Nexperia's revision history and legal disclaimers, RB751V40 is explicitly designated as non-automotive qualified. It lacks AEC-Q101 qualification, automotive-specific testing, and guaranteed operation under extended temperature cycling or harsh ESD profiles required for vehicle ECUs or infotainment systems.
What is the maximum continuous forward current for RB751V40?
The maximum continuous forward current is 120 mA, as specified in the Quick Reference Data and Limiting Values tables. This rating assumes ambient temperature ≤25 °C and standard FR4 PCB mounting; derating is required above 25 °C per the thermal resistance of 450 K/W.
Does the marking 'W8' correspond to RB751V40?
Yes. Table 4 of the datasheet confirms that the marking code 'W8' is assigned exclusively to the RB751V40 type number. This laser-marked identifier appears adjacent to the cathode bar on the SOD323 package body for traceability and visual verification.
Can RB751V40 replace a 1N5711 in high-frequency detector circuits?
Yes, with improved performance: RB751V40 offers lower capacitance (2 pF vs. ~3–4 pF for 1N5711), lower forward voltage (370 mV vs. ~450–500 mV), and tighter parameter distribution. Its SOD323 package also supports modern automated assembly, unlike the axial 1N5711.
RB751V40,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 120mA
- Voltage - Forward (Vf) (Max) @ If:
- 370 mV @ 1 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 nA @ 30 V
- Capacitance @ Vr, F:
- 2pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- 150°C (Max)
RB751V40,115 FAQ
1.How can I place an order for RB751V40,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for RB751V40,115 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 RB751V40,115 reliable?
The price and inventory of RB751V40,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RB751V40,115 is usually 5 days.
3.What payment methods are accepted for RB751V40,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RB751V40,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RB751V40,115?
RB751V40,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RB751V40,115 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 RB751V40,115?
For technical support, including RB751V40,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RB751V40,115 requirements.
6.How does Aetrix verify that RB751V40,115 is sourced from the original manufacturer or authorized distributors?
All RB751V40,115 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 RB751V40,115 meets industry standards.
7.What is the process for return or replacement of RB751V40,115?
All RB751V40,115 units undergo pre-shipment inspection (PSI). If there is an issue with RB751V40,115, 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 RB751V40,115 part is unused and in its original packaging.
Return procedure for RB751V40,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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