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Infineon Technologies BAV 70 B5003

Part No.:
BAV 70 B5003
Manufacturer:
Infineon Technologies
Category:
Diode Arrays
Package:
TO-236-3, SC-59, SOT-23-3
Datasheet:
AetrixBAV 70 B5003.pdf
Description:
DIODE ARRAY GP 80V 200MA PGSOT23
Quantity:
Payment:
Payment
Shipping:
Shipping

Inventory:4,962

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Product details

Overview

BAV70 B5003 from Nexperia is a silicon double diode in common-cathode configuration housed in an SC74 (SOT-363) package, rated for 80 V reverse voltage, 200 mA forward current, and 4 ns reverse recovery time. It serves as a high-speed switching diode in signal routing, level shifting, and clamp protection circuits within automotive body control modules and industrial PLC I/O stages.

For engineers reviewing the BAV70 B5003 datasheet, BAV70 B5003 pinout, BAV70 B5003 application, or BAV70 B5003 equivalent, key selection criteria include its dual-diode topology, AEC-Q101 qualification, low 1.5 pF junction capacitance at 0 V, and thermal resistance of ≤260 K/W (junction-to-soldering point), critical for compact, thermally constrained PCB layouts.

Technical Context

The BAV70 B5003 integrates two identical epitaxial planar silicon switching diodes sharing a single cathode terminal, enabling bidirectional clamping or dual-path signal steering without discrete pairing. Its 4 ns reverse recovery time and 1.5 pF capacitance support >100 MHz signal integrity in data line protection and RF detector front-ends.

Rated for operation up to 150 °C junction temperature and qualified per AEC-Q101, it delivers stable leakage performance (<0.15 µA at 70 V, 25 °C) and predictable forward voltage (1.25 V max at 150 mA), making it suitable for under-hood automotive sensors and industrial motor drive feedback paths where thermal cycling reliability is mandatory.

Key Specifications

ParameterValue and Actual Design Meaning
Reverse Voltage (VR)80 V - Supports rail-to-rail signal clamping in 24 V automotive systems without breakdown.
Forward Current (IF)200 mA - Handles peak logic-level current surges in digital interface protection circuits.
Reverse Recovery Time (trr)4 ns - Enables clean switching in >100 MHz clock/data lines with minimal overshoot.
Junction Capacitance (CT)1.5 pF @ 0 V, 1 MHz - Minimizes signal loading on high-speed analog or RF signal paths.
Thermal Resistance (RthJS)≤260 K/W - Allows sustained 200 mA operation with <33 °C solder-point temperature rise in SMT layouts.
Junction Temperature (Tj)150 °C - Meets extended-temperature requirements for engine control unit (ECU) sensor interfaces.

Pinout & Package

BAV70 B5003 is packaged in SC74 (SOT-363), a 6-pin surface-mount package with symmetrical pin layout and no defined Pin 1 orientation in tape-and-reel. The device uses common-cathode topology: Pins 1 & 2 are anode terminals for Diode 1 and Diode 2 respectively; Pin 3 is shared cathode; Pins 4–6 are unused (NC) internal die pads.

Pin/TerminalCircuit RoleDesign Meaning
Pin 1Anode of Diode 1Input path for first signal channel; connects to source in clamp or steer configuration.
Pin 2Anode of Diode 2Independent input path for second channel; enables dual-signal handling in one footprint.
Pin 3Common CathodeSingle return node for both diodes; simplifies PCB routing and reduces ground loop area.
Pins 4–6No Connection (NC)Internal die paddle extensions; electrically isolated and must remain unconnected.

Key Features

FeatureDesign Value
AEC-Q101 QualifiedValidated for automotive applications including engine management, lighting, and ADAS sensor interfaces.
Common-Cathode Dual DiodeReduces component count by 50% vs. discrete diodes; cuts PCB area by ~40% in space-constrained modules.
Low Reverse Recovery Time4 ns enables use in 100+ MHz data lines without introducing timing skew or ringing artifacts.
Pb-Free / RoHS CompliantMeets global environmental compliance mandates without requiring special assembly process changes.

Applications

Automotive Body Control ModuleIndustrial PLC Digital Input

Use Scenario: Clamping transient spikes on LIN bus lines during load dump events.

IC Role / Device Role / Timing Role: Signal-level bidirectional clamp diode protecting microcontroller GPIO pins.

Use Value: Prevents latch-up and permanent damage using 80 V VR rating and <0.15 µA IR at 70 V, 25 °C.

Use Scenario: Level-shifting 24 V field signals to 3.3 V/5 V logic inputs in modular I/O cards.

IC Role / Device Role / Timing Role: High-speed interface diode enabling fast edge detection on optocoupler-driven inputs.

Use Value: 4 ns trr ensures accurate pulse capture at >10 kHz update rates without distortion.

USB Port ESD ProtectionRF Detector Front-End

Use Scenario: Secondary ESD clamp on D+/D− lines downstream of TVS diodes.

IC Role / Device Role / Timing Role: Low-capacitance (1.5 pF) switching diode limiting voltage overshoot during CDM events.

Use Value: Maintains USB 2.0 signal integrity (480 Mbps) while adding <0.5 V forward drop at 10 mA.

Use Scenario: Demodulating AM envelope in 868 MHz ISM-band receiver front-ends.

IC Role / Device Role / Timing Role: High-frequency detector diode operating in small-signal square-law region.

Use Value: 1.5 pF CT and 4 ns trr minimize phase error and harmonic generation below –20 dBm input.

Equivalent & Alternatives

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

Alternative PartTechnical DifferenceApplication DifferenceSelection Advice
BAV99W,115Same SC74 package, identical pinout, but VF = 1.25 V max @ 150 mA (vs. 1.25 V for BAV70 B5003); RthJS = ≤190 K/W.Higher thermal efficiency supports higher ambient temps in sealed enclosures.Select when junction temperature exceeds 125 °C in continuous operation.
MMBD7000LT1GSOT-23-3 package, single common-cathode pair, VF = 1.0 V typ @ 10 mA, trr = 4 ns, CT = 2.0 pF.Larger capacitance limits use above 50 MHz; smaller footprint lacks redundancy.Choose only if board space is constrained and dual-channel redundancy is not required.

Compared with BAV99W and MMBD7000LT1G, BAV70 B5003 offers balanced thermal performance (≤260 K/W), AEC-Q101 qualification, and optimal 1.5 pF/4 ns trade-off for mixed-signal automotive and industrial control nodes where reliability and RF compatibility are jointly critical.

Availability

BAV70 B5003 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and USB interface protection requiring stable component supply across multi-year production cycles.

Supply support for BAV70 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 standard logic, discrete, and MOSFET solutions, with manufacturing rooted in process excellence and automotive-grade quality systems.

The BAV70 series belongs to Nexperia's high-speed switching diode product line, engineered specifically for robust signal integrity and thermal resilience in automotive and industrial control applications demanding AEC-Q101 compliance.

FAQ

Is BAV70 B5003 pin-compatible with BAV70S or BAV70U?

No. BAV70 B5003 uses the SC74 (SOT-363) package with 6 pins and common-cathode dual-diode configuration. BAV70S is in SOT-363 but marked as "A4s" and shares identical pinout; however, BAV70U is in SOT-323 (3-pin) and is not physically or electrically interchangeable due to different terminal count and thermal design.

What is the maximum allowable soldering temperature for BAV70 B5003?

The SC74 package supports standard lead-free reflow profiles per IPC/JEDEC J-STD-020. Peak temperature must not exceed 260 °C for ≤30 seconds, with ramp rate ≤3 °C/s before and after peak. Exceeding these limits risks delamination or bond wire failure due to thermal stress on the epoxy mold compound.

Does BAV70 B5003 support bidirectional signal clamping?

Yes - its common-cathode dual-diode structure allows bidirectional clamping when configured with external pull-up/pull-down resistors. With Pin 3 (cathode) tied to VCC, Pins 1 and 2 clamp negative transients to VCC − VF; with Pin 3 grounded, they clamp positive transients to VF above GND.

Can BAV70 B5003 replace BAT54S in existing designs?

Only with layout and thermal validation. Both are common-cathode dual diodes in SOT-363, but BAT54S has lower VF (≈320 mV @ 10 mA) and higher CT (≈10 pF), making it unsuitable for >10 MHz applications. BAV70 B5003's 4 ns trr and 1.5 pF CT improve high-frequency performance but require verification of forward-drop impact on logic thresholds.

BAV 70 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
Diode Configuration:
1 Pair Common Cathode
Technology:
Standard
Voltage - DC Reverse (Vr) (Max):
80 V
Current - Average Rectified (Io) (per Diode):
200mA (DC)
Voltage - Forward (Vf) (Max) @ If:
1.25 V @ 150 mA
Speed:
Small Signal =< 200mA (Io), Any Speed
Reverse Recovery Time (trr):
4 ns
Current - Reverse Leakage @ Vr:
150 nA @ 70 V
Operating Temperature - Junction:
150°C (Max)
Grade:
-
Qualification:
-
Mounting Type:
Surface Mount
Supplier Device Package:
PG-SOT23

BAV 70 B5003 FAQ

1.How can I place an order for BAV 70 B5003 through Aetrix?

Please submit a Request for Quotation (RFQ) for BAV 70 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 BAV 70 B5003 reliable?

The price and inventory of BAV 70 B5003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV 70 B5003 is usually 5 days.

3.What payment methods are accepted for BAV 70 B5003?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV 70 B5003 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAV 70 B5003?

BAV 70 B5003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAV 70 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 BAV 70 B5003?

For technical support, including BAV 70 B5003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV 70 B5003 requirements.

6.How does Aetrix verify that BAV 70 B5003 is sourced from the original manufacturer or authorized distributors?

All BAV 70 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 BAV 70 B5003 meets industry standards.

7.What is the process for return or replacement of BAV 70 B5003?

All BAV 70 B5003 units undergo pre-shipment inspection (PSI). If there is an issue with BAV 70 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 BAV 70 B5003 part is unused and in its original packaging.

Return procedure for BAV 70 B5003:

1.Submit a request within 90 days.

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

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