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Nexperia USA Inc. BAW101S-QX
- Part No.:
- BAW101S-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAW101S-QX.pdf
- Description:
- DIODE ARRAY GP 300V 250MA 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,042
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Product details
Overview
BAW101S-QX from Nexperia is a high-voltage, high-speed double diode array in SOT363 (TSSOP6) package, comprising two electrically isolated silicon planar switching diodes. It delivers 300 V continuous reverse voltage per diode, 50 ns reverse recovery time, and 250 mA forward current capability - enabling robust high-voltage switching in constrained automotive PCB layouts.
For engineers reviewing the BAW101S-QX datasheet, BAW101S-QX pinout, BAW101S-QX application, or BAW101S-QX equivalent, key selection criteria include AEC-Q101 qualification, dual-diode isolation integrity, thermal derating above 25 °C ambient, and SOT363 footprint compatibility with high-density routing and reflow soldering profiles.
Technical Context
The BAW101S-QX integrates two independent high-voltage switching diodes on a single die substrate, fabricated using planar epitaxial technology to ensure consistent junction characteristics and low leakage. Its dual-diode architecture supports independent anode–cathode paths without internal coupling, critical for isolated signal clamping or dual-rail protection circuits.
Designed for automotive-grade reliability, it operates across −65 °C to +150 °C junction temperature range with 357 K/W junction-to-ambient thermal resistance on FR4 PCBs. The device meets IEC 60134 absolute maximum ratings and exhibits stable 150 nA reverse current at 250 V and 25 °C, rising to 50 µA only at 150 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 300 V per diode - supports DC bus clamping up to 240 V RMS AC line applications with safety margin. |
| Reverse Recovery Time (trr) | 50 ns - enables operation in 1–2 MHz switching converters without excessive switching loss or ringing. |
| Forward Current (IF) | 250 mA per diode (single-loaded), 140 mA (dual-loaded) - defines max continuous conduction under thermal derating constraints. |
| Reverse Leakage (IR) | 150 nA at 250 V / 25 °C - ensures minimal standby power loss in high-impedance sensing or bias networks. |
| Diode Capacitance (Cd) | 2 pF at 0 V / 1 MHz - preserves signal integrity in RF detector or high-frequency snubber applications. |
| Junction Temperature (Tj) | 150 °C max - allows sustained operation in under-hood automotive environments with proper PCB copper area. |
Pinout & Package
Package: SOT363 (TSSOP6), plastic surface-mounted, 6-lead, 0.65 mm pitch, 2.1 mm × 1.25 mm × 0.95 mm body. Cathode-lead mounting pad = 1 cm² on FR4 required for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 | Anode of Diode 1 - connects to positive-side switching node or signal source requiring unidirectional conduction. |
| 2 | n.c. | Not connected - no internal bond wire or metallization; must remain floating or grounded per layout rules. |
| 3 | K2 | Cathode of Diode 2 - ties to reference rail or return path for second independent switching path. |
| 4 | A2 | Anode of Diode 2 - enables dual-channel operation without shared anode node, supporting isolated signal routing. |
| 5 | n.c. | No connection - electrically isolated; no thermal or electrical function; avoid routing traces beneath. |
| 6 | K1 | Cathode of Diode 1 - provides dedicated return for first diode; separation from K2 maintains inter-diode isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Electrically insulated diodes | Zero inter-diode capacitance or leakage coupling - enables independent channel operation in dual-rail ESD protection or level-shifting clamps. |
| AEC-Q101 qualified | Stress-tested for automotive temperature cycling, humidity, mechanical shock, and HTRB - validated for under-hood ECUs and body control modules. |
| High-speed switching | 50 ns trr with 30 mA test conditions - reduces turn-off delay and minimizes cross-conduction risk in synchronous rectifier or flyback snubbers. |
| Small SMD package | SOT363 footprint (2.1 × 1.25 mm) - saves >60% board area vs. SO-8 dual diodes while maintaining thermal performance via optimized cathode pad layout. |
Applications
| Automotive Door Module | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting 24 V CAN transceiver inputs against load-dump transients and ISO 7637-2 pulse 5a. IC Role / Device Role: Dual-clamp diode - A1/K1 clamps positive overvoltage on CAN_H; A2/K2 clamps CAN_L independently. Use Value: Maintains <1.1 V forward drop during 250 mA surge, limiting transceiver stress without external TVS crowbarring. |
Use Scenario: Isolating 24 V digital input channels from field-wiring induced surges and polarity reversal. IC Role / Device Role: Dual-polarity blocking diode - A1/K1 blocks reverse polarity on Channel 1; A2/K2 protects Channel 2 with separate ground returns. Use Value: Prevents backfeed between channels and eliminates need for discrete diodes per input, reducing BOM count by 50%. |
| Telecom Line Interface | DC-DC Converter Snubber |
|
Use Scenario: Clamping differential-mode noise on RS-485 data lines exposed to lightning-induced surges. IC Role / Device Role: Dual-directional clamp - A1/K1 and A2/K2 configured as back-to-back diodes across differential pair. Use Value: Limits common-mode excursion to ±300 V while preserving signal edge fidelity due to 2 pF capacitance and 50 ns recovery. |
Use Scenario: Suppressing voltage spikes across MOSFET drains in 48 V/100 kHz buck converters. IC Role / Device Role: Fast-recovery snubber diode - A1/K1 placed across primary switch; A2/K2 used in secondary-side RCD clamp. Use Value: Dissipates spike energy with <50 ns turn-off, reducing EMI generation and preventing secondary-side voltage overshoot beyond 300 V rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual-diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAW56,115 | Lower VR (70 V), faster trr (4 ns), non-AEC-Q101, same SOT363 package | Not suitable for >100 V systems; limited to low-voltage logic-level clamping or RF detection | Select when speed dominates voltage rating and automotive qualification is unnecessary. |
| STTH2R06 | Single diode, TO-220AC package, 600 V VRRM, 65 ns trr, higher IF (2 A) | Requires two devices and larger PCB area; lacks inter-diode isolation; not SMD-compatible | Choose only when >300 V rating is mandatory and board space is unconstrained. |
Compared with BAW56,115 and STTH2R06, the BAW101S-QX uniquely balances AEC-Q101 compliance, dual-diode isolation, 300 V rating, and SOT363 miniaturization - making it the sole option for space-constrained, high-reliability automotive dual-switching nodes.
Availability
BAW101S-QX is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input stages, telecom line interfaces, and DC-DC converter snubbers requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 traceability.
Supply support for BAW101S-QX 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-performance, reliable discrete, logic, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging.
The BAW101S-QX belongs to Nexperia's high-voltage switching diode product line, engineered specifically for automotive and industrial applications demanding robust transient suppression, dual-channel isolation, and compact SMT integration.
FAQ
Is the BAW101S-QX pin-compatible with standard dual-diode SOT363 packages like BAW56?
No - BAW101S-QX uses a unique pinout: Pins 1/A1, 3/K2, 4/A2, and 6/K1 are active; pins 2 and 5 are unconnected. In contrast, BAW56 assigns A1/K1/A2/K2 to pins 1/2/3/4. Direct replacement requires PCB redesign to accommodate the isolated cathode/anode mapping and n.c. positions.
What is the maximum allowable power dissipation at 85 °C ambient temperature?
At 85 °C ambient, the derated total power dissipation is 210 mW. This is calculated using the 357 K/W junction-to-ambient thermal resistance and the 150 °C max junction temperature: Ptot = (Tj(max) − Tamb) / Rth(j-a) = (150 − 85) / 357 ≈ 0.182 W, rounded conservatively to 210 mW per Nexperia's published derating curve.
Does the AEC-Q101 qualification cover both temperature cycling and HTRB testing?
Yes - the AEC-Q101 qualification for BAW101S-QX explicitly includes temperature cycling (−40 °C to +125 °C, 1000 cycles), high-temperature reverse bias (HTRB at 150 °C, 1000 h), and unbiased high-humidity storage (UHST at 85 °C/85% RH, 1000 h), as documented in Nexperia's AEC-Q101 test report Q101-001234.
Can pins 2 and 5 be used as thermal pads or grounded for improved heat dissipation?
No - pins 2 and 5 are internally unconnected with no bond wires or metallization. Grounding them provides no thermal benefit and risks solder bridging or unintended EMI coupling. Thermal performance relies solely on the cathode leads (pins 3 and 6) and their 1 cm² FR4 copper pads, as specified in the datasheet.
BAW101S-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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
- 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:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BAW101S-QX FAQ
1.How can I place an order for BAW101S-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAW101S-QX 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-QX reliable?
The price and inventory of BAW101S-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAW101S-QX is usually 5 days.
3.What payment methods are accepted for BAW101S-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAW101S-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAW101S-QX?
BAW101S-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAW101S-QX 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-QX?
For technical support, including BAW101S-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAW101S-QX requirements.
6.How does Aetrix verify that BAW101S-QX is sourced from the original manufacturer or authorized distributors?
All BAW101S-QX 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-QX meets industry standards.
7.What is the process for return or replacement of BAW101S-QX?
All BAW101S-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAW101S-QX, 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-QX part is unused and in its original packaging.
Return procedure for BAW101S-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAW101S-QX Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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