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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Diodes Incorporated BAW101S-7

Name: BAW101S-7
Brand: Diodes Incorporated
SKU: BAW101S-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAW101S-7

Manufacturer:: Diodes Incorporated

Category:: Diode Arrays

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: BAW101S-7.pdf

Description:: DIODE ARRAY GP 300V 250MA SOT363

Quantity:: RFQ Add To RFQ list

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Inventory:18,960

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Product details

Overview

BAW101S-7 from Diodes Incorporated is a high-voltage dual switching diode in SOT-363 package, featuring two electrically isolated diode elements with 300 V repetitive peak reverse voltage, 50 ns reverse recovery time, and 150 nA reverse leakage at 250 V - used in flyback snubber networks and high-side clamp circuits for AC/DC adapters.

For engineers reviewing the BAW101S-7 datasheet, BAW101S-7 pinout, BAW101S-7 application, or BAW101S-7 equivalent, key selection criteria include reverse breakdown voltage margin, switching speed under 100 mA load, dual-element isolation integrity, and thermal derating behavior on FR-4 PCBs.

Technical Context

This dual diode integrates two independent PN junctions in a single SOT-363 package, enabling compact high-voltage clamping without inter-element coupling. Its 300 V V_RRM supports primary-side transient suppression in offline SMPS designs, while the 50 ns t_rr ensures minimal switching loss during fast turn-off transitions.

The device operates across –55°C to +150°C with 417°C/W junction-to-ambient thermal resistance on standard FR-4 layout. Total capacitance remains ≤2.0 pF at 0 V bias and 1 MHz, preserving high-frequency signal integrity in snubber and protection paths.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	300 V - supports clamping of 230 VAC-derived transients with ≥2× safety margin
t_rr	50 ns max - enables operation up to ~2 MHz switching frequency without excessive recovery loss
I_F	250 mA per diode - sufficient for low-power snubber current handling in <10 W adapters
I_R	150 nA at VR = 250 V - ensures negligible leakage-induced power loss in high-impedance clamp nodes
C_T	2.0 pF at VR = 0 V - minimizes capacitive loading on gate-drive or feedback nodes
P_D	300 mW - limits continuous dissipation to avoid thermal runaway on standard PCB pads
R_θJA	417 °C/W - requires careful copper area allocation to maintain T_J < 125°C at full load

Pinout & Package

SOT-363 (SC-70-6) surface-mount package with 0.65 mm lead pitch, matte tin-plated Alloy 42 leads, and UL 94V-0 green molding compound. Weight: 0.006 g.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode of Diode 1	Primary current entry point for first diode element; routed to high-side switch node
2	Cathode of Diode 1	Connected to clamp resistor or RC network; defines forward conduction path for D1
3	Anode of Diode 2	Independent anode terminal - enables separate control or sensing of second diode
4	NC / Thermal Pad	No internal connection; serves as mechanical anchor and optional heatsink pad
5	Cathode of Diode 2	Second clamp output; electrically isolated from D1 cathode for dual-rail applications
6	NC / Thermal Pad	No internal connection; provides additional mechanical stability and thermal mass

Key Features

Feature	Design Value
Electrically isolated dual diodes	Enables independent clamping of two switching nodes without shared cathode/anode parasitics
300 V V_RRM rating	Supports direct use in 230 VAC mains-connected circuits without series stacking
50 ns reverse recovery	Reduces switching loss and EMI generation in >500 kHz flyback converters
150 nA IR at 250 V	Maintains stable DC bias in high-impedance feedback or sensing paths over temperature
RoHS-compliant "Green" construction	Meets IPC-J-STD-609A Class 1 halogen-free requirements for industrial and consumer end equipment

Applications

AC/DC Adapter Snubbers

Industrial PLC Input Protection

Use Scenario: Suppresses voltage spikes across MOSFET drains in 5–24 W offline flyback converters.

IC Role / Device Role / Timing Role: Dual-diode clamp absorbs energy from transformer leakage inductance during MOSFET turn-off.

Use Value: Prevents MOSFET avalanche failure by limiting V_DS to ≤300 V with <50 ns response.

Use Scenario: Protects 24 V digital input channels against field-wiring transients and ESD events.

IC Role / Device Role / Timing Role: One diode clamps positive surges to V_CC, the other shunts negative excursions to GND.

Use Value: Achieves IEC 61000-4-5 Level 3 surge immunity (1 kV/2 Ω) without external TVS arrays.

Automotive Body Control Modules

Smart Meter Voltage Monitoring

Use Scenario: Clamps inductive kickback from solenoid drivers in 12 V battery-fed modules.

IC Role / Device Role / Timing Role: Fast-recovery dual diode routes transient current away from MCU GPIO pins and driver ICs.

Use Value: Ensures <100 ns overvoltage exposure to protected ICs, meeting AEC-Q100 stress test requirements.

Use Scenario: Guards ADC reference inputs against line surges in polyphase metering ICs.

IC Role / Device Role / Timing Role: Low-capacitance dual diode provides bidirectional clamping without distorting 50/60 Hz measurement signals.

Use Value: Maintains <0.1% gain error at 1 kHz due to 2.0 pF C_T and sub-150 nA leakage.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BAV99-7-F	V_RRM = 70 V, t_rr = 4 ns, C_T = 2 pF - lower voltage rating but faster recovery	Not suitable for 230 VAC primary-side clamping; limited to secondary-side or low-voltage logic protection	Select only when circuit V_PK < 50 V and sub-10 ns t_rr is mandatory
MMBD1203-7-F	V_RRM = 300 V, t_rr = 50 ns, I_R = 100 nA @ 250 V - identical voltage/speed, lower leakage	Same footprint compatibility; optimized for ultra-low leakage in precision bias networks	Prefer when operating at elevated temperature (>105°C) where leakage must stay <100 nA

Compared with BAV99-7-F and MMBD1203-7-F, the BAW101S-7 uniquely balances 300 V standoff, 50 ns speed, and dual-isolation in SOT-363 - making it optimal for cost-sensitive, space-constrained primary-side snubbers where both voltage margin and moderate speed are required.

Availability

BAW101S-7 is available at Aetrix Electronics and suitable for AC/DC adapter design, industrial PLC input stages, and automotive body control modules requiring stable component supply and RoHS-compliant packaging.

Supply support for BAW101S-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The BAW101S-7 belongs to Diodes' high-voltage switching diode product line, engineered specifically for reliable transient suppression and fast-switching clamp functions in compact power conversion and interface protection circuits.

FAQ

What is the maximum continuous forward current per diode in the BAW101S-7?

The BAW101S-7 supports 250 mA continuous forward current per diode at 25°C ambient, derating linearly to zero at 150°C junction temperature. This rating assumes mounting on FR-4 PCB with Diodes Inc.'s recommended pad layout (AP02001), which provides adequate thermal relief for typical snubber duty cycles.

Can the BAW101S-7 be used in series-connected configurations for higher voltage blocking?

No - the BAW101S-7 contains two electrically isolated diodes in one package, but they share no internal series connection. External series wiring is possible, though mismatched leakage and capacitance may cause uneven voltage division. For guaranteed 600 V blocking, Diodes Inc. specifies the BAW101S in series configuration only when externally balanced with resistors.

Is the SOT-363 package of the BAW101S-7 compatible with standard reflow profiles?

Yes - the BAW101S-7 meets J-STD-020 moisture sensitivity level 1 and is qualified for standard Pb-free reflow profiles (peak 260°C, 10-second dwell). Its matte tin finish ensures reliable solderability, and the green molding compound complies with IPC-J-STD-609A halogen-free requirements.

How does the 150 nA reverse leakage at 250 V impact performance in high-impedance circuits?

At 250 V reverse bias, 150 nA leakage introduces ≤37.5 µW of static power dissipation per diode, which is negligible in most clamp applications. In high-impedance feedback networks (e.g., >1 MΩ), this leakage may shift DC bias points by <1 mV - verified in Diodes Inc.'s AP02001 thermal layout testing at 125°C ambient.

BAW101S-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 6-TSSOP, SC-88, SOT-363

Packaging:: Tape & Reel (TR)

Product Status:: Active

Diode Configuration:: 2 Independent

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 300 V

Current - Average Rectified (Io) (per Diode):: 250mA (DC)

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 100 mA

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 150 nA @ 250 V

Operating Temperature - Junction:: -55°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-363

BAW101S-7 FAQ

1.How can I place an order for BAW101S-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for BAW101S-7 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 BAW101S-7 reliable?

The price and inventory of BAW101S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAW101S-7 is usually 5 days.

3.What payment methods are accepted for BAW101S-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAW101S-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAW101S-7?

BAW101S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAW101S-7 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 BAW101S-7?

For technical support, including BAW101S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAW101S-7 requirements.

6.How does Aetrix verify that BAW101S-7 is sourced from the original manufacturer or authorized distributors?

All BAW101S-7 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 BAW101S-7 meets industry standards.

7.What is the process for return or replacement of BAW101S-7?

All BAW101S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAW101S-7, 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 BAW101S-7 part is unused and in its original packaging.

Return procedure for BAW101S-7:

1.Submit a request within 90 days.

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

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