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Nexperia USA Inc. BAS316/DG/B4X
- Part No.:
- BAS316/DG/B4X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- -
- Datasheet:
-
BAS316/DG/B4X.pdf
- Description:
- DIODE GEN PURP 100V 250MA
- Quantity:
- Payment:
- Shipping:
Inventory:6,384
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Product details
Overview
BAS316/DG/B4X from Nexperia is a high-speed switching diode in SOD323 (SC-76) package, configured as a single discrete silicon PN junction device with cathode-anode polarity. It delivers trr ≤ 4 ns reverse recovery time, VR = 100 V maximum reverse voltage, and IF = 250 mA forward current rating at Tamb ≤ 25 °C - enabling use in compact DC-DC converter flyback snubbers and high-frequency signal routing circuits.
For engineers reviewing the BAS316/DG/B4X datasheet, BAS316/DG/B4X pinout, BAS316/DG/B4X application, or BAS316/DG/B4X equivalent, key selection criteria include verified 4 ns trr performance, 1.5 pF capacitance at 0 V, AEC-Q101 qualification for automotive environments, and thermal resistance Rth(j-sp) = 55 K/W under standard solder-point conditions.
Technical Context
This diode operates as a unidirectional charge-carrier switch optimized for fast transient response. Its low leakage (IR ≤ 0.5 µA at VR = 80 V) and tight VF distribution (715–1250 mV across 1–150 mA) support stable biasing in precision clamping and level-shifting nodes.
The SOD323 package enables surface-mount integration into space-constrained PCB layouts while maintaining thermal integrity via direct cathode-to-pad conduction path. Device behavior is characterized under pulsed test conditions (tp ≤ 300 µs, δ ≤ 0.02) per IEC 60134 limiting value standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Recovery Time (trr) | ≤ 4 ns - ensures minimal switching loss in >10 MHz pulse applications like RF detector front-ends |
| Reverse Voltage (VR) | 100 V - supports operation in 48 V industrial bus protection and 24 V automotive load-dump clamp circuits |
| Forward Current (IF) | 250 mA - sufficient for signal-level switching in USB port protection and logic-level translation paths |
| Diode Capacitance (Cd) | 1.5 pF at f = 1 MHz, VR = 0 V - preserves signal integrity in high-speed data line clamping (e.g., CAN FD, LVDS) |
| Forward Voltage (VF) | 855 mV at IF = 10 mA - enables low-power biasing in battery-operated sensor interface circuits |
| Reverse Leakage (IR) | 0.5 µA at VR = 80 V - maintains accuracy in precision voltage reference divider networks |
| Thermal Resistance (Rth(j-sp)) | 55 K/W - allows reliable power dissipation up to 400 mW with controlled solder-joint temperature rise |
Pinout & Package
SOD323 (SC-76) plastic surface-mounted package; 2-terminal leaded ultra-small outline with cathode marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to PCB ground or negative rail; marked by bar on top surface; primary heat conduction path |
| 2 | Anode | Input node for forward conduction; routed to positive supply or signal source; defines current directionality |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114 |
| Low trr with consistent measurement condition | Tested at IF = 10 mA, IR = 10 mA, RL = 100 Ω, IR(meas) = 1 mA - enables reproducible timing in synchronous rectifier control |
| Ultra-small footprint | 1.35 × 1.15 mm body size - fits within 1.8 mm² PCB area, supporting miniaturized IoT sensor modules |
| Low thermal resistance to solder point | Rth(j-sp) = 55 K/W - reduces junction-to-pad temperature delta during 250 mA pulsed operation |
| Controlled VF distribution | Typical 855 mV at 10 mA - minimizes variation in bias network current across production lots |
Applications
| Automotive Door Module Clamping | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Suppresses inductive kickback from window motor drivers and mirror actuator coils during PWM commutation. IC Role / Device Role / Timing Role: Fast-recovery clamp diode placed across motor coil terminals to limit voltage spikes to <100 V. Use Value: 4 ns trr prevents energy storage in parasitic inductance, reducing EMI emissions by >6 dBµV in CISPR 25 Class 5 testing. |
Use Scenario: Protects USB transceiver ICs from ESD events and overvoltage transients on D+ and D− lines. IC Role / Device Role / Timing Role: Low-capacitance shunt diode connected between data line and VBUS to divert surge current. Use Value: 1.5 pF capacitance avoids signal integrity degradation at 480 Mbps, preserving eye diagram margin per USB-IF compliance. |
| Industrial PLC Input Conditioning | Portable Medical Sensor Biasing |
Use Scenario: Conditions 24 V DC digital input signals subject to field-wiring transients and contact bounce. IC Role / Device Role / Timing Role: Reverse-polarity protection and transient suppression diode in series with optocoupler LED anode. Use Value: 100 V VR rating withstands 2 kV surge per IEC 61000-4-5 Level 3, ensuring uninterrupted input detection. |
Use Scenario: Provides stable bias current to photodiode amplifiers in wearable pulse oximeters. IC Role / Device Role / Timing Role: Precision forward-biased current source element in transimpedance amplifier feedback loop. Use Value: Tight VF tolerance (±30 mV at 10 mA) maintains constant photocurrent gain across operating temperature range (−40 to +85 °C). |
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 |
|---|---|---|---|
| BAS16J | Same SOD323 package but SC-90 JEITA designation; identical trr, VR, and IF ratings | No AEC-Q101 qualification; intended for commercial-grade consumer electronics only | Select when automotive qualification is not required and cost sensitivity dominates |
| BAS516 | Smaller SOD523 (SC-79) package; lower Cd = 1.0 pF but reduced IF = 200 mA and Ptot = 500 mW | Better high-frequency isolation but lower power handling; unsuitable for >200 mA pulsed loads | Choose for ultra-high-speed RF coupling where sub-1 pF capacitance outweighs current capability |
Compared with BAS16J, BAS316/DG/B4X adds AEC-Q101 validation for automotive deployment, while BAS516 trades current capacity for tighter capacitance control - making BAS316 the optimal balance of speed, ruggedness, and package compatibility in industrial and automotive signal-path designs.
Availability
BAS316/DG/B4X is available at Aetrix Electronics and suitable for automotive door modules, USB 2.0 interface protection, and industrial PLC input conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAS316/DG/B4X 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 high-volume, high-reliability discrete and logic devices, with manufacturing rooted in process technology leadership and automotive-grade quality systems.
The BAS16 series was developed specifically for high-speed switching applications demanding consistent trr, low leakage, and robust SMD packaging - targeting automotive, industrial, and communications infrastructure markets.
FAQ
What is the maximum allowable junction temperature for BAS316/DG/B4X?
The absolute maximum junction temperature (Tj) is 150 °C per IEC 60134 limiting values. This rating is maintained under all operating conditions, including repetitive peak forward current (IFRM = 500 mA) and non-repetitive surges (IFSM = 4 A for 1 µs). Thermal design must ensure Rth(j-a) does not exceed 230 K/W in free-air conditions.
Is BAS316/DG/B4X suitable for bidirectional ESD protection?
No - BAS316/DG/B4X is a unidirectional PN junction diode. Its cathode-anode configuration provides forward conduction and reverse blocking only. For bidirectional ESD protection, a dedicated TVS diode such as PESD5V0S1BA must be used instead.
How does the SOD323 package affect thermal performance compared to SOT23?
The SOD323 package achieves Rth(j-sp) = 55 K/W due to its optimized cathode pad geometry and shorter thermal path to PCB copper, whereas SOT23 variants like BAS16 show Rth(j-sp) = 330 K/W. This 83% reduction enables higher continuous power dissipation (400 mW vs. 250 mW) without exceeding Tj limits.
Can BAS316/DG/B4X replace BAT54 in existing designs?
Only with circuit verification: BAT54 has Schottky construction (VF ≈ 300 mV), while BAS316 is silicon PN (VF ≈ 855 mV at 10 mA). The higher VF increases forward drop and power loss; however, BAS316's 100 V VR and 4 ns trr exceed BAT54's 30 V VR and ~5 ns trr, making it viable in higher-voltage, faster-switching roles if bias networks are re-evaluated.
BAS316/DG/B4X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BAS16
- Package/Case:
- -
- 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:
- -
- Operating Temperature - Junction:
- 150°C (Max)
BAS316/DG/B4X FAQ
1.How can I place an order for BAS316/DG/B4X through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS316/DG/B4X 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/DG/B4X reliable?
The price and inventory of BAS316/DG/B4X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS316/DG/B4X is usually 5 days.
3.What payment methods are accepted for BAS316/DG/B4X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS316/DG/B4X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS316/DG/B4X?
BAS316/DG/B4X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS316/DG/B4X 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/DG/B4X?
For technical support, including BAS316/DG/B4X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS316/DG/B4X requirements.
6.How does Aetrix verify that BAS316/DG/B4X is sourced from the original manufacturer or authorized distributors?
All BAS316/DG/B4X 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/DG/B4X meets industry standards.
7.What is the process for return or replacement of BAS316/DG/B4X?
All BAS316/DG/B4X units undergo pre-shipment inspection (PSI). If there is an issue with BAS316/DG/B4X, 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/DG/B4X part is unused and in its original packaging.
Return procedure for BAS316/DG/B4X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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