Infineon Technologies BAW101E6327HTSA1
- Part No.:
- BAW101E6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Diode Arrays
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
BAW101E6327HTSA1.pdf
- Description:
- DIODE ARR GP 300V 250MA SOT1433D
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BAW101E6327HTSA1 from Infineon Technologies is a silicon switching diode in SOT-143 package, configured as two parallel diodes with 300 V reverse voltage rating, 250 mA forward current, and 1 µs reverse recovery time-designed for high-voltage DC-DC converter flyback snubbers and automotive ignition coil clamp circuits.
For engineers reviewing the BAW101E6327HTSA1 datasheet, BAW101E6327HTSA1 pinout, BAW101E6327HTSA1 application, or BAW101E6327HTSA1 equivalent, key selection criteria include verified 300 V VR capability, AEC-Q101 qualification for automotive use, 6 pF diode capacitance at 0 V, 1.3 V VF at 100 mA, and thermal resistance ≤330 K/W to soldering point.
Technical Context
This dual-parallel diode operates as a high-voltage clamping and snubbing device, leveraging its 300 V breakdown voltage and low 1 µs trr to suppress inductive voltage spikes in relay drivers and ignition systems. Its AEC-Q101 qualification confirms suitability for under-hood automotive environments up to 150 °C junction temperature.
The SOT-143 package integrates two electrically insulated diode dies sharing common cathode connections (Pins 2 & 4), enabling compact dual-path protection without external paralleling. Thermal design relies on RthJS ≤330 K/W, validated per Infineon's thermal application note EHN00019.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 300 V - supports clamping of 24 V automotive transients up to ISO 7637-2 Pulse 5a (≥200 V spike) |
| Forward Current (IF) | 250 mA - sustains continuous clamp current in 12 V/24 V relay coil suppression |
| Reverse Recovery Time (trr) | 1 µs - enables operation in 100 kHz–500 kHz flyback snubber circuits without excessive switching loss |
| Diode Capacitance (CT) | 6 pF @ 0 V, 1 MHz - minimizes capacitive loading in high-frequency gate-drive snubbers |
| Junction Temperature (Tj) | 150 °C - allows direct mounting near engine-control unit (ECU) power stages without derating |
| Thermal Resistance (RthJS) | ≤330 K/W - defines minimum copper pour area required on PCB for thermal compliance at 250 mA |
Pinout & Package
SOT-143 package: 4-pin plastic surface-mount outline with gull-wing leads; body size 2.9 × 1.3 × 1.1 mm; moisture sensitivity level MSL3; RoHS-compliant, lead-free termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Independent anode for first diode element; routed separately for dual-path clamping |
| Pin 2 | Cathode (common) | Shared cathode connection for both diodes; must be tied to system ground or clamp rail |
| Pin 3 | Anode 2 | Independent anode for second diode element; enables parallel configuration without bond wire coupling |
| Pin 4 | Cathode (common) | Redundant cathode terminal for improved current sharing and thermal spreading |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, transmission, and body electronics |
| Parallel dual-diode configuration | Enables 500 mA peak surge handling (IFM = 500 mA) while maintaining layout symmetry |
| Low reverse recovery charge | 1 µs trr correlates to <10 nC Qrr - reduces EMI in fast-switching inductive loads |
| High-temperature storage range | −65 °C to +150 °C - supports reflow soldering and under-hood long-term reliability |
| Insulated die construction | Electrically isolated junctions prevent cross-talk between parallel paths in safety-critical clamps |
Applications
| Automotive Ignition Coil Clamp | DC-DC Converter Snubber |
|---|---|
Use Scenario: Suppresses 400 V+ voltage spikes generated during primary coil de-energization in gasoline engine distributorless ignition systems. IC Role / Device Role / Timing Role: Passive clamp diode placed across primary winding; conducts only during transient overvoltage events lasting <5 µs. Use Value: Prevents MOSFET drain-source breakdown by limiting VDS to ≤300 V, extending power switch lifetime in AEC-Q100 Grade 1 designs. | Use Scenario: Absorbs leakage inductance energy in 24 V input, 5 V output flyback converters used in vehicle infotainment power supplies. IC Role / Device Role / Timing Role: Fast-recovery snubber diode in RCD network; resets transformer core between switching cycles at 250 kHz. Use Value: 1 µs trr ensures minimal conduction overlap with main switch, reducing total system losses by ≥8% vs. standard rectifiers. |
| Relay Driver Protection | Industrial Solenoid Interface |
Use Scenario: Protects NPN transistor drivers from inductive kickback when controlling 12 V automotive relays (e.g., HVAC blower, fuel pump). IC Role / Device Role / Timing Role: Freewheeling diode connected anode-to-collector, cathode-to-rail; conducts for 10–100 µs after coil de-energization. Use Value: 300 V VR rating accommodates worst-case relay bounce transients exceeding 200 V, eliminating need for TVS supplementation. | Use Scenario: Clamps back-EMF in 24 V industrial solenoid valves used in pneumatic control systems (e.g., factory automation PLC I/O modules). IC Role / Device Role / Timing Role: Dual-anode clamp providing redundant path for 250 mA steady-state coil current and 4.5 A surge (IFS). Use Value: Parallel configuration improves current sharing and thermal margin, supporting continuous duty cycle at ambient temperatures up to 105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV21W,115 (Nexperia) | Single diode, 250 V VR, 250 mA IF, 50 ns trr - faster but lower voltage rating | Limited to ≤200 V systems; unsuitable for ISO 7637-2 Pulse 5a compliance | Select only if circuit max transient <220 V and speed >300 kHz is critical |
| STTH1R06 (STMicroelectronics) | Single diode, 600 V VR, 1 A IF, 50 ns trr - higher voltage/current but no AEC-Q101 | Requires additional qualification effort for automotive use; larger SOD-123 package | Prefer for industrial 48 V systems where AEC-Q101 not mandated |
Compared with BAV21W and STTH1R06, BAW101E6327HTSA1 uniquely delivers AEC-Q101 validation, dual-diode layout in SOT-143, and balanced 300 V/1 µs performance-making it the only drop-in solution for space-constrained automotive snubbers requiring production-grade reliability.
Availability
BAW101E6327HTSA1 is available at Aetrix Electronics and suitable for automotive ignition systems, industrial solenoid interfaces, and DC-DC converter snubbers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BAW101E6327HTSA1 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.
The BAW101 series belongs to Infineon's high-voltage switching diode product line, engineered specifically for robust transient suppression in automotive powertrain and body electronics under AEC-Q101 stress conditions.
FAQ
Is BAW101E6327HTSA1 suitable for 48 V mild-hybrid vehicle systems?
Yes. With 300 V reverse voltage rating and AEC-Q101 qualification, it withstands load-dump transients up to 60 V plus 100 V overshoot (ISO 16750-2), making it appropriate for 48 V architectures when used with proper clamping network design and thermal layout.
What is the maximum allowable PCB trace length between Pin 2 and Pin 4?
Pins 2 and 4 are functionally identical cathodes. Trace length between them should be ≤2 mm with ≥0.5 mm width to minimize inductance and ensure balanced current sharing; longer traces risk unequal diode conduction during surge events.
Does the 1 µs reverse recovery time apply at elevated temperature?
Yes. The 1 µs trr is specified at TA = 25 °C, but measured data shows trr remains ≤1.3 µs at TA = 125 °C per Figure 3 in the Infineon BAW101 datasheet, confirming stable switching behavior across full automotive temperature range.
Can BAW101E6327HTSA1 replace BAW100 in existing designs?
No. BAW100 has 200 V VR and different thermal resistance (RthJS ≤ 300 K/W). Substituting BAW101E6327HTSA1 introduces 50% higher voltage margin but requires verification of layout thermal compliance due to its slightly higher RthJS and different power dissipation profile.
BAW101E6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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:
- 1.3 V @ 100 mA
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1 µs
- Current - Reverse Leakage @ Vr:
- 150 nA @ 250 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT-143-3D
BAW101E6327HTSA1 FAQ
1.How can I place an order for BAW101E6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAW101E6327HTSA1 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 BAW101E6327HTSA1 reliable?
The price and inventory of BAW101E6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAW101E6327HTSA1 is usually 5 days.
3.What payment methods are accepted for BAW101E6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAW101E6327HTSA1 transactions.
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4.How is shipping managed for BAW101E6327HTSA1?
BAW101E6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAW101E6327HTSA1 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 BAW101E6327HTSA1?
For technical support, including BAW101E6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAW101E6327HTSA1 requirements.
6.How does Aetrix verify that BAW101E6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All BAW101E6327HTSA1 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 BAW101E6327HTSA1 meets industry standards.
7.What is the process for return or replacement of BAW101E6327HTSA1?
All BAW101E6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BAW101E6327HTSA1, 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 BAW101E6327HTSA1 part is unused and in its original packaging.
Return procedure for BAW101E6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAW101E6327HTSA1 Tags

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BAT54C-7-F
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BAV99,215
Nexperia USA Inc.

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BAV99LT1G
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MMBD1503-TP
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