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Nexperia USA Inc. BZA968A,115
- Part No.:
- BZA968A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOT-665
- Datasheet:
-
BZA968A,115.pdf
- Description:
- TVS DIODE 6.8VWM SOT665
- Quantity:
- Payment:
- Shipping:
Inventory:119
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Product details
Overview
BZA968A from Nexperia is a quadruple ESD transient voltage suppressor diode in SOT665 package, configured as common-anode with four independent cathodes (pins 1,3,4,5) and shared anode (pin 2). It delivers 6.8 V nominal working voltage (VZ), 200 Ω differential resistance, 2.2 mV/K temperature coefficient, 90 pF capacitance at 0 V, and 14 W non-repetitive peak reverse power for I/O line protection in USB 2.0 interfaces.
For engineers reviewing the BZA968A datasheet, BZA968A pinout, BZA968A application, or BZA968A equivalent, key selection criteria include clamping performance under ±8 kV IEC61000-4-2 ESD stress, low capacitance for high-speed signal integrity, thermal resistance (125 K/W for all diodes loaded), and compatibility with 4-bit parallel data bus protection layouts.
Technical Context
The BZA968A integrates four Zener-based ESD protection diodes monolithically in a single SOT665 package, sharing a common anode connection to ground. Each diode operates independently with a specified working voltage of 6.46–7.14 V at 1 mA and exhibits 100 nA reverse leakage at 4.3 V.
Its clamping behavior is defined by non-repetitive peak reverse current (IZSM) up to 2.0 A at 1 ms pulse width and peak reverse power (PZSM) of 14 W, enabling robust suppression of fast-rising transients while maintaining low parasitic capacitance (≤90 pF) critical for USB 2.0 and HDMI signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VZ) | 6.8 V nominal at 1 mA - sets minimum trigger threshold for ESD clamping on protected lines |
| Differential Resistance (rdif) | 200 Ω max - determines voltage overshoot during transient conduction (ΔV = Itransient × rdif) |
| Reverse Leakage (IR) | 100 nA max at 4.3 V - ensures minimal signal loading and DC power loss on high-impedance I/O |
| Diode Capacitance (Cd) | 90 pF max at 1 MHz, 0 V - preserves signal integrity for ≤480 Mbps USB 2.0 data rates |
| PZSM (1 ms) | 14 W - defines maximum single-event energy absorption capability per diode |
| ESD Rating | >8 kV contact discharge per IEC61000-4-2 - meets industrial-grade system-level ESD immunity requirements |
| Thermal Resistance (Rth j-s) | 125 K/W (all diodes loaded) - governs steady-state power dissipation limit on standard PCB |
Pinout & Package
SOT665 is a 5-lead surface-mount plastic package with gull-wing leads, optimized for automated assembly and low-inductance PCB layout. Pin 2 serves as the common anode solder point (thermal reference), while pins 1, 3, 4, and 5 are individual cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | ESD clamp path for first protected signal line; connects to I/O trace before connector |
| 2 | Common Anode | Shared ground return for all four diodes; primary thermal interface to PCB copper pour |
| 3 | Cathode 2 | ESD clamp path for second protected signal line; electrically isolated from pin 1 |
| 4 | Cathode 3 | ESD clamp path for third protected signal line; enables compact 4-line bus protection |
| 5 | Cathode 4 | ESD clamp path for fourth protected signal line; supports parallel D+/D−/ID/VBUS routing |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple Common-Anode Configuration | Enables simultaneous protection of four independent signal lines with single-component footprint and shared ground return |
| Low Diode Capacitance (90 pF) | Maintains signal rise/fall time integrity for USB 2.0 full-speed (12 Mbps) and high-speed (480 Mbps) operation |
| Controlled Clamping Voltage Profile | Clamps transients to ≤12 V at 1 A peak current, limiting stress on downstream PHY ICs |
| Monolithic Integration | Ensures matched electrical characteristics across all four diodes, eliminating inter-device timing skew |
| IEC61000-4-2 Certified ESD Robustness | Validated for ≥8 kV contact discharge, supporting compliance testing without external test fixtures |
Applications
| USB 2.0 Interface Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pair plus ID and VBUS lines on USB Type-A/B receptacles against user-handling ESD events. IC Role / Device Role / Timing Role: Passive clamping element placed between connector and USB transceiver, activated within <1 ns of ESD onset. Use Value: Limits clamped voltage to <12 V during ±8 kV contact discharge, preventing latch-up or gate oxide damage in connected PHY ICs. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SCL/SDA) connecting source and display devices. IC Role / Device Role / Timing Role: Bidirectional ESD shunt placed at HDMI connector, grounding transients via common-anode pin 2. Use Value: Maintains DDC signal integrity with 90 pF capacitance, avoiding I²C clock stretching or communication timeout errors. |
| Industrial Serial Bus Protection | Audio Codec Interface Protection |
Use Scenario: Shielding RS-485/RS-422 driver/receiver pairs in factory automation controllers from cable-discharge events. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted directly at board edge connector, minimizing trace inductance. Use Value: Absorbs 14 W transient energy without degradation, ensuring >100,000 ESD strike endurance in harsh environments. | Use Scenario: Securing I²S digital audio data lines (BCLK, LRCLK, SDATA) between SoC and audio codec ICs. IC Role / Device Role / Timing Role: Low-capacitance shunt suppressing ESD on high-frequency digital audio signals. Use Value: Prevents audible pop/click artifacts during hot-plug events by clamping transients below codec input damage threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA6V1SC6 | Single-channel SOT23-6; 6.1 V VZ; 30 pF Cd; 3 kW PPP | Requires four discrete units for quad-line protection; lower capacitance but larger total footprint | Select when ultra-low capacitance (<35 pF) is mandatory for >1 Gbps interfaces, accepting higher assembly cost |
| TPD4E001DQAR | Quad-channel SOT23-6; 5.5 V VZ; 12 pF Cd; 120 W PPP | Lower clamping voltage but higher cost; designed for automotive AEC-Q200 qualification | Select for automotive infotainment systems requiring AEC-Q200 compliance and tighter clamping (<8 V @ 1 A) |
Compared with ESDA6V1SC6 and TPD4E001DQAR, the BZA968A offers optimal balance of integrated quad-channel packaging, moderate capacitance (90 pF), and industrial-grade ESD rating (>8 kV), making it ideal for cost-sensitive consumer and industrial USB/HDMI designs where footprint and thermal performance are prioritized over sub-30 pF requirements.
Availability
BZA968A is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC channel safeguarding, and industrial serial bus shielding requiring stable component supply across production lifecycles.
Supply support for BZA968A 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 leader in high-volume production of discrete semiconductors, specializing in logic, power MOSFETs, and ESD protection devices for automotive, industrial, and consumer markets.
The BZA900A-series belongs to Nexperia's ESD protection portfolio, engineered specifically for compact, multi-line I/O port protection in space-constrained portable and embedded systems.
FAQ
What is the maximum clamping voltage of BZA968A during an 8 kV ESD event?
The BZA968A does not specify a fixed clamping voltage at 8 kV; instead, its clamping behavior follows IEC61000-4-2 waveforms, with typical clamped voltage ≤12 V at 1 A peak current. Actual clamping depends on PCB layout inductance and transient rise time-measured values range from 9.5 V to 11.8 V under standardized 150 pF/330 Ω network conditions per Figure 6 in the datasheet.
Can BZA968A be used for bidirectional signal lines like USB D+ and D−?
Yes-each cathode-anode path functions bidirectionally for ESD suppression. When used on differential pairs, pins 1 and 3 protect D+ and D− respectively, with shared anode (pin 2) tied to clean system ground. The device's symmetric Zener structure ensures equal positive/negative clamping thresholds, supporting full USB 2.0 compliance.
Is thermal derating required when operating multiple diodes simultaneously?
Yes-total power dissipation must be derated above 25 °C ambient. Figure 5 shows linear derating from 335 mW at 25 °C to zero at 150 °C. With all four diodes active, junction-to-solder-point thermal resistance is 125 K/W; thus, at 70 °C ambient, maximum allowable continuous power drops to approximately 200 mW to maintain Tj ≤150 °C.
How does BZA968A compare to TVS diodes with higher PZSM ratings?
BZA968A trades peak power (14 W) for ultra-compact quad integration and low capacitance (90 pF). Higher-PZSM TVS devices (e.g., 30–100 W) typically use larger packages (SOD-323, SOT-23) and exhibit >150 pF capacitance, making them unsuitable for high-speed data lines. BZA968A targets applications where footprint and signal integrity outweigh raw energy handling.
BZA968A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOT-665
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.8V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 14W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 90pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-665
BZA968A,115 FAQ
1.How can I place an order for BZA968A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZA968A,115 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 BZA968A,115 reliable?
The price and inventory of BZA968A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZA968A,115 is usually 5 days.
3.What payment methods are accepted for BZA968A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZA968A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZA968A,115?
BZA968A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZA968A,115 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 BZA968A,115?
For technical support, including BZA968A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZA968A,115 requirements.
6.How does Aetrix verify that BZA968A,115 is sourced from the original manufacturer or authorized distributors?
All BZA968A,115 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 BZA968A,115 meets industry standards.
7.What is the process for return or replacement of BZA968A,115?
All BZA968A,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZA968A,115, 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 BZA968A,115 part is unused and in its original packaging.
Return procedure for BZA968A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZA968A,115 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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