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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Nexperia USA Inc. BAS316-QX

Name: BAS316-QX
Brand: Nexperia USA Inc.
SKU: BAS316-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAS316-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Diodes

Package:: SC-76, SOD-323

Datasheet:: BAS316-QX.pdf

Description:: DIODE GEN PURP 100V 250MA SOD323

Quantity:: RFQ Add To RFQ list

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Inventory:4,422

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Product details

Overview

BAS316-Q from Nexperia is a high-speed switching diode in SOD323 (SC-76) package, rated for 100 V repetitive peak reverse voltage, 4 ns reverse recovery time, and 250 mA continuous forward current. It serves as a fast-switching rectifier or signal clamping element in automotive power management and signal routing circuits.

For engineers reviewing the BAS316-Q datasheet, BAS316-Q pinout, BAS316-Q application, or BAS316-Q equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, and real-world switching performance metrics under defined test conditions.

Technical Context

The BAS316-Q is a planar epitaxial silicon switching diode optimized for low trr and low Cd. Its junction design enables sub-4 ns reverse recovery with 1.5 pF capacitance at 0 V bias and 1 MHz, supporting >100 MHz signal switching in compact layouts.

Qualified per AEC-Q101, it operates across −65 °C to +150 °C ambient, with 150 K/W junction-to-solder-point thermal resistance and 400 mW total power dissipation on FR4 PCB - enabling reliable use in engine control units and ADAS sensor interfaces without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
Reverse Voltage (V_RRM)	100 V - supports 24 V and 48 V automotive bus rail clamping without breakdown
Reverse Recovery Time (t_rr)	4 ns - enables clean switching in PWM frequencies up to 100 MHz
Diode Capacitance (C_d)	1.5 pF at 0 V - minimizes signal distortion in RF and high-speed digital signal paths
Forward Voltage (V_F)	855 mV at 10 mA - ensures low conduction loss in low-current logic-level switching
Reverse Current (I_R)	0.5 µA at 80 V, 25 °C - maintains high isolation in standby and sleep-mode circuits
Junction Temperature (T_j)	150 °C max - allows operation in under-hood environments without derating
Thermal Resistance (R_th(j-sp))	150 K/W - defines temperature rise above solder point under 400 mW dissipation

Pinout & Package

SOD323 (SC-76) surface-mount plastic package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode tab on Pin 1.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (K)	Connected to higher-potential node during reverse bias; primary heat path to PCB via cathode pad
2	Anode (A)	Current entry point during forward conduction; routed to lower-potential reference or ground

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing
Low trr ≤ 4 ns	Reduces switching losses and ringing in high-frequency DC-DC converters and signal gating
Small SOD323 footprint	Enables dense layout in space-constrained modules like radar front-ends and LED drivers
Low leakage I_R ≤ 0.5 µA	Maintains signal integrity in high-impedance sample-and-hold or level-shifting circuits

Applications

Automotive Engine Control Unit (ECU)

USB 2.0 Signal Clamping

Use Scenario: Protecting microcontroller GPIOs from inductive kickback during solenoid actuation in 12 V/24 V ECU subsystems.

IC Role / Device Role / Timing Role: Fast-recovery clamp diode placed across relay coil or injector driver output.

Use Value: 4 ns t_rr prevents latch-up by rapidly quenching flyback energy before controller I/O damage occurs.

Use Scenario: ESD and overvoltage protection on USB D+/D− lines in infotainment head units.

IC Role / Device Role / Timing Role: Bidirectional transient suppressor operating in forward/reverse conduction modes.

Use Value: 1.5 pF capacitance avoids signal integrity degradation at 480 Mbps full-speed USB data rates.

LED Driver Flyback Snubber

High-Speed Logic-Level Translation

Use Scenario: Absorbing leakage inductance spikes in constant-current LED drivers for adaptive headlights.

IC Role / Device Role / Timing Role: Snubbing diode in RCD network across primary-side MOSFET.

Use Value: 100 V V_RRM withstands reflected flyback voltage while 4 ns t_rr limits snubber dissipation.

Use Scenario: Level shifting between 3.3 V MCU outputs and 5 V peripheral inputs in body control modules.

IC Role / Device Role / Timing Role: Passive open-drain translator using forward conduction threshold.

Use Value: 855 mV V_F at 10 mA ensures predictable turn-on with minimal propagation delay skew.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed switching diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSVRB316HT1G	Same SOD323 package, 4 ns t_rr, but 125 °C max T_j (vs. 150 °C)	Limited to under-dash modules; not qualified to AEC-Q101 Grade 0	Select when cost sensitivity outweighs extended temperature margin
Vishay VS-3BQ01500-M3/84	Higher 150 V V_RRM, larger SOD123 package, 5 ns t_rr	Requires PCB redesign; suitable for 48 V battery systems needing extra voltage headroom	Select only if system requires >100 V standoff and board area permits larger footprint

Compared with NSVRB316HT1G and VS-3BQ01500-M3/84, the BAS316-Q uniquely combines AEC-Q101 Grade 0 qualification, 150 °C junction rating, and SOD323 size - making it the only option for compact, high-temperature under-hood switching where footprint and reliability are jointly constrained.

Availability

BAS316-Q is available at Aetrix Electronics and suitable for automotive engine control units, USB interface protection circuits, LED driver snubbers, and logic-level translation requiring stable component supply across long production lifecycles.

Supply support for BAS316-Q 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 focused on essential efficiency technologies, delivering high-performance discrete, logic, and MOSFET devices for automotive, industrial, and consumer markets.

The BAS316-Q belongs to Nexperia's AEC-Q101-qualified high-speed diode product line, engineered specifically for robust, low-loss switching in automotive power and signal conditioning applications.

FAQ

Is BAS316-Q suitable for 48 V automotive battery systems?

No - its 100 V V_RRM provides only 2× margin over nominal 48 V, insufficient for ISO 7637-2 pulse 5a (110 V surge). For 48 V systems, select diodes rated ≥150 V such as Vishay VS-3BQ01500-M3/84 or Diodes Inc. BAV99W-7-F.

What is the maximum allowable forward current at 105 °C ambient?

At T_amb = 105 °C, the device's thermal limit reduces P_tot to ~220 mW. With V_F ≈ 0.95 V at 100 mA, the practical continuous forward current is ~230 mA - below the 250 mA rating at 25 °C, requiring minor derating.

Does BAS316-Q have a built-in ESD protection structure?

No - it lacks integrated ESD clamps. Its 1.5 pF capacitance and 0.5 µA leakage make it compatible with external TVS diodes (e.g., PESD5V0S1BA), but standalone ESD immunity must be implemented externally per IEC 61000-4-2 Level 4 requirements.

Can BAS316-Q replace BAS216 in existing designs?

Yes - both share SOD323 package and pinout, but BAS316-Q offers tighter t_rr (4 ns vs. 5 ns typical), lower C_d (1.5 pF vs. 2.0 pF), and AEC-Q101 qualification. No layout change needed; performance improves in high-frequency switching nodes.

BAS316-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-76, SOD-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 250mA

Voltage - Forward (Vf) (Max) @ If:: 1.25 V @ 150 mA

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 4 ns

Current - Reverse Leakage @ Vr:: 500 nA @ 80 V

Capacitance @ Vr, F:: 1.5pF @ 0V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

Operating Temperature - Junction:: 150°C

BAS316-QX FAQ

1.How can I place an order for BAS316-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BAS316-QX 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 BAS316-QX reliable?

The price and inventory of BAS316-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS316-QX is usually 5 days.

3.What payment methods are accepted for BAS316-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS316-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAS316-QX?

BAS316-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAS316-QX 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 BAS316-QX?

For technical support, including BAS316-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS316-QX requirements.

6.How does Aetrix verify that BAS316-QX is sourced from the original manufacturer or authorized distributors?

All BAS316-QX 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 BAS316-QX meets industry standards.

7.What is the process for return or replacement of BAS316-QX?

All BAS316-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAS316-QX, 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 BAS316-QX part is unused and in its original packaging.

Return procedure for BAS316-QX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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