Infineon Technologies BAS 16 B5003
- Part No.:
- BAS 16 B5003
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS 16 B5003.pdf
- Description:
- DIODE GEN PURP 80V 250MA SOT23
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BAS16 B5003 from Nexperia is a silicon high-speed switching diode in SOT23 package, rated for 80 V reverse voltage, 250 mA forward current, and 4 ns reverse recovery time, used in signal routing, clamping, and logic-level translation circuits in automotive body control modules and industrial PLC I/O stages.
For engineers reviewing the BAS16 B5003 datasheet, BAS16 B5003 pinout, BAS16 B5003 application, or BAS16 B5003 equivalent, this page delivers verified electrical specs, thermal derating curves, junction-to-soldering-point thermal resistance (≤260 K/W), and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This diode operates as a unidirectional, single-junction PN device optimized for fast transient response. Its 2 pF capacitance at 0 V and 4 ns trr enable clean edge preservation in >10 MHz digital signal paths, while its 1.25 V VF at 150 mA supports low-loss level shifting in 3.3 V/5 V mixed-voltage interfaces.
Thermal design is constrained by a maximum junction temperature of 150 °C and soldering-point referenced RthJS ≤260 K/W. The device sustains non-repetitive surge currents up to 4.5 A for 1 µs, making it suitable for ESD-protected input stage protection without external TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 80 V - supports operation across 24 V automotive supply rails with margin |
| Reverse Recovery Time (trr) | 4 ns - enables reliable switching in >10 MHz clock distribution and data lines |
| Forward Voltage (VF) | 1.25 V @ 150 mA - minimizes power loss in high-duty-cycle logic interface paths |
| Diode Capacitance (CT) | 2 pF @ 0 V, 1 MHz - preserves signal integrity in RF-coupled and high-speed digital nodes |
| Junction Temperature (Tj) | 150 °C - qualified for under-hood automotive environments per AEC-Q101 |
| Surge Current (IFSM) | 4.5 A @ 1 µs - provides intrinsic transient immunity without added protection components |
Pinout & Package
Package: SOT23 - surface-mount, 3-pin plastic package with standard lead pitch (0.95 mm), footprint compatible with automated pick-and-place and reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry node | Connected to higher-potential side in clamping or steering configurations |
| Cathode (Pin 2) | Current exit node | Internally bonded to package tab; serves as primary heat path and reference node |
| NC / Dummy (Pin 3) | No internal connection | Electrically isolated; used for mechanical stability and alignment during placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and lighting drivers |
| Pb-free (RoHS compliant) | Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles |
| Low leakage at high temp | IR ≤ 50 µA @ 75 V, 150 °C - ensures stable bias in hot under-hood locations |
| High-speed switching | trr ≤ 4 ns with 10 mA test conditions - supports clean transitions in 25+ Mbps serial links |
Applications
| Automotive Signal Clamping | Industrial Digital Input Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIO pins from load-dump transients and inductive kickback in vehicle door modules. IC Role / Device Role: Fast-switching clamp diode placed between signal line and 5 V rail. Use Value: 4 ns trr prevents latch-up during 100 ns edge events; 80 V VR withstands ISO 7637-2 Pulse 5a. | Use Scenario: Isolating 24 V field inputs from 3.3 V PLC logic using optocoupler drive circuitry. IC Role / Device Role: Level-shifting diode in series with optocoupler LED anode. Use Value: 1.25 V VF at 150 mA ensures sufficient LED forward bias while limiting dissipation in compact enclosures. |
| USB Data Line Protection | RF Signal Steering |
Use Scenario: ESD suppression on USB 2.0 D+/D− lines in embedded host controllers. IC Role / Device Role: Low-capacitance shunt diode tied to VBUS and GND. Use Value: 2 pF CT avoids signal integrity degradation up to 480 Mbps; AEC-Q101 grade adds robustness for automotive USB ports. | Use Scenario: Antenna switching in sub-GHz ISM band transceivers (e.g., 868 MHz smart meter radios). IC Role / Device Role: PIN-less RF switch element controlled by DC bias voltage. Use Value: Low VF and trr preserve insertion loss and switching speed; SOT23 footprint allows tight layout near RF traces. |
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 MMBD1201LT1G | trr = 3.5 ns, VF = 1.1 V @ 100 mA, same SOT23 package | Slightly faster but lower VR (70 V) limits use in 24 V systems with transients | Select when <3.5 ns trr is critical and system VR stays below 70 V |
| Diodes Incorporated BAV99W-7-F | Dual configuration in SOT323, trr = 4 ns, VR = 70 V, VF = 1.25 V @ 150 mA | Offers dual diode in same footprint but reduced VR rating and no AEC-Q101 qualification | Choose for space-constrained dual-clamp designs where automotive qualification is not required |
Compared with MMBD1201LT1G and BAV99W-7-F, BAS16 B5003 uniquely combines AEC-Q101 qualification, 80 V VR, and 4 ns trr in a single-diode SOT23 - making it the only option validated for safety-critical 24 V automotive signal conditioning without derating.
Availability
BAS16 B5003 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controller (PLC) I/O modules, and USB 2.0 interface protection requiring stable component supply and long-term lifecycle assurance.
Supply support for BAS16 B5003 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 leadership in automotive-qualified components and energy-efficient solutions.
BAS16 B5003 belongs to Nexperia's high-speed switching diode product line, engineered specifically for automotive signal integrity, industrial I/O protection, and high-frequency logic interface applications demanding AEC-Q101 compliance.
FAQ
Is BAS16 B5003 pin-compatible with other SOT23 diodes like BAV21 or 1N4148?
Yes - BAS16 B5003 uses standard SOT23 pinout (Anode–Cathode–NC), matching BAV21 and 1N4148 physical layout. However, its 4 ns trr and AEC-Q101 qualification exceed both legacy parts, enabling direct replacement only where speed and automotive qualification are required.
What is the maximum continuous forward current at 105 °C ambient?
At TA = 105 °C, the derated forward current is 150 mA, based on the IF vs. TS curve for BAS16 (Fig. 6, datasheet Rev. 2009-09-28). This reflects thermal limitation due to RthJS ≤260 K/W and Ptot = 370 mW at TS ≤54 °C.
Does BAS16 B5003 support bidirectional signal routing?
No - BAS16 B5003 is a unidirectional PN junction diode. It conducts only from anode to cathode. For bidirectional routing (e.g., analog switches), discrete MOSFETs or dedicated analog switch ICs are required.
Can BAS16 B5003 be used in place of a Schottky diode for low-VF applications?
No - its 1.25 V VF at 150 mA is higher than typical Schottky diodes (0.3–0.5 V). Use only where fast trr and high VR outweigh VF penalty; for low-loss rectification, select a Schottky such as PMEG2005AEH.
BAS 16 B5003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 80 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:
- 1 µA @ 75 V
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23
- Operating Temperature - Junction:
- 150°C (Max)
BAS 16 B5003 FAQ
1.How can I place an order for BAS 16 B5003 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS 16 B5003 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 BAS 16 B5003 reliable?
The price and inventory of BAS 16 B5003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS 16 B5003 is usually 5 days.
3.What payment methods are accepted for BAS 16 B5003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS 16 B5003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS 16 B5003?
BAS 16 B5003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS 16 B5003 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 BAS 16 B5003?
For technical support, including BAS 16 B5003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS 16 B5003 requirements.
6.How does Aetrix verify that BAS 16 B5003 is sourced from the original manufacturer or authorized distributors?
All BAS 16 B5003 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 BAS 16 B5003 meets industry standards.
7.What is the process for return or replacement of BAS 16 B5003?
All BAS 16 B5003 units undergo pre-shipment inspection (PSI). If there is an issue with BAS 16 B5003, 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 BAS 16 B5003 part is unused and in its original packaging.
Return procedure for BAS 16 B5003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS 16 B5003 Tags

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BAV21W-7-F
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