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NXP Semiconductors BZA820A,115
- Part No.:
- BZA820A,115
- Manufacturer:
- NXP Semiconductors
- Category:
- TVS Diodes
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
BZA820A,115.pdf
- Description:
- TVS DIODE 20VWM 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,769
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Product details
Overview
BZA820A,115 from Nexperia is a quadruple ESD transient voltage suppressor diode in SOT353 (SC-88A) package with common anode configuration, 20 V working voltage (IZ = 1 mA), ≤100 nA reverse current at 15 V, and 50 pF capacitance at 0 V - used for high-speed data line protection in USB, HDMI, and audio interfaces.
For engineers reviewing the BZA820A,115 datasheet, BZA820A,115 pinout, BZA820A,115 application, or BZA820A,115 equivalent, key selection criteria include clamping performance under IEC 1000-4-2 ±8 kV ESD events, low diode capacitance for signal integrity, thermal derating above 25 °C, and common-anode layout compatibility with multi-line I/O protection.
Technical Context
The BZA820A,115 integrates four monolithic Zener-based ESD protection diodes sharing a single anode terminal, enabling compact 4-line suppression without discrete component duplication. Its design targets fast transient response (sub-nanosecond clamping) and low parasitic capacitance to minimize signal distortion on high-frequency lines.
It operates within a junction temperature range of −65 °C to +150 °C and exhibits a positive temperature coefficient of +16 mV/K for the Zener voltage, requiring thermal-aware PCB layout per IEC 61000-4-2 test compliance. The device is rated for non-repetitive peak reverse power of 17 W (tp = 1 ms) and peak reverse current of 0.6 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VZ) | 20 V at IZ = 1 mA - defines minimum clamping threshold before ESD conduction begins |
| Reverse Current (IR) | ≤100 nA at VR = 15 V - ensures minimal leakage during normal operation of sensitive analog/digital inputs |
| Diode Capacitance (Cd) | 50 pF at f = 1 MHz, VR = 0 - preserves signal integrity on high-speed interfaces up to ~100 MHz |
| ESD Rating | >8 kV contact discharge per IEC 1000-4-2 - meets industrial and consumer ESD immunity requirements |
| Differential Resistance (rdiff) | ≤125 Ω at IZ = 1 mA - determines dynamic clamping voltage rise under transient current |
| Thermal Resistance (Rth j-a) | 370 K/W - requires careful PCB copper area planning to sustain 335 mW total dissipation at Tamb = 25 °C |
Pinout & Package
SOT353 (SC-88A) is a 5-lead surface-mount plastic package with 1.3 mm × 1.8 mm footprint, 0.95 mm height, and gull-wing leads. Pin 2 is the common anode; pins 1, 3, 4, and 5 are individual cathodes for independent line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | Protected signal line #1 return path to common anode (Pin 2) |
| 2 | Common Anode | Shared connection to ground or VCC; must be routed with lowest possible inductance |
| 3 | Cathode 2 | Protected signal line #2 return path to common anode (Pin 2) |
| 4 | Cathode 3 | Protected signal line #3 return path to common anode (Pin 2) |
| 5 | Cathode 4 | Protected signal line #4 return path to common anode (Pin 2) |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple Common-Anode Topology | Enables simultaneous protection of four independent I/O lines using one compact SOT353 footprint, reducing board space by ~75% vs. discrete diodes |
| Low 50 pF Capacitance | Maintains signal fidelity on high-speed digital buses (e.g., USB 2.0, I²C, SPI) without measurable rise-time degradation |
| +16 mV/K Temperature Coefficient | Ensures predictable upward drift of clamping voltage with junction heating - critical for thermal stability in sustained ESD stress scenarios |
| 17 W Non-Repetitive Peak Power | Supports robust clamping of IEC 61000-4-2 Level 4 transients (±8 kV contact) without failure when properly mounted |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential D+ and D− lines plus VBUS and ID pins against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: ESD transient voltage suppressor providing bidirectional clamping between signal lines and ground/VCC. Use Value: Prevents latch-up or damage to USB transceivers while maintaining <1 ns response time and <0.5 V overshoot at 1 A transient current. | Use Scenario: Shielding HDMI Display Data Channel (DDC) and Consumer Electronics Control (CEC) lines from electrostatic discharge during hot-plug operations. IC Role / Device Role / Timing Role: Quadruple Zener-based clamp with shared anode connected to system ground, suppressing ±8 kV ESD pulses per IEC 61000-4-2. Use Value: Limits clamped voltage to ≤25 V during 1 kV ESD event, preserving I²C-compatible logic levels and preventing EEPROM corruption. |
| Audio Line Inputs (Line-In/Mic) | Industrial Sensor Interface |
Use Scenario: Guarding unbalanced analog audio inputs (e.g., 3.5 mm jack) against user-handling ESD in portable media players and docking stations. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor placed directly at connector entry point, shunting ESD energy to ground. Use Value: Maintains signal-to-noise ratio >95 dB by limiting capacitance to 50 pF and avoiding DC bias shift due to leakage <100 nA. | Use Scenario: Protecting 4-channel analog sensor outputs (e.g., pressure, temperature, humidity) in factory automation modules exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: Common-anode quad suppressor routing each sensor output through its own cathode to shared ground plane. Use Value: Enables single-component protection across all four channels while meeting IEC 61000-4-2 Level 4 immunity without degrading 16-bit ADC resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA6V1-5W6 | Lower working voltage (6.1 V), higher capacitance (120 pF), same SOT353 package and common-anode topology | Better suited for 3.3 V or 5 V logic rails; less appropriate for 15–24 V analog/sensor lines | Select ESDA6V1-5W6 only when protecting low-voltage digital I/O where tighter clamping is required and higher capacitance is acceptable |
| TPD4E001DPYR | Higher ESD rating (±15 kV), lower capacitance (3.5 pF), but uses different pinout (SOT-563) and separate anodes per channel | Requires PCB redesign; superior for RF/analog front-ends but over-specified for general-purpose I/O | Choose TPD4E001DPYR only when ultra-low capacitance and enhanced ESD margin justify layout change and cost increase |
Compared with ESDA6V1-5W6 and TPD4E001DPYR, the BZA820A,115 offers optimal balance of 20 V working voltage, 50 pF capacitance, and SOT353 common-anode layout - making it ideal for mixed-signal interfaces operating near 15 V or requiring minimal board area without sacrificing ESD robustness.
Availability
BZA820A,115 is available at Aetrix Electronics and suitable for USB interface protection, HDMI auxiliary channel safeguarding, and industrial analog sensor input conditioning requiring stable component supply across production lifecycles.
Supply support for BZA820A,115 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-performance discrete, logic, and power MOSFET semiconductors, serving automotive, industrial, computing, and consumer markets with scalable, reliable components.
The BZA820A,115 belongs to the BZA800A-series of monolithic quadruple ESD suppressors designed specifically for space-constrained, multi-line I/O protection in high-volume consumer and industrial electronics.
FAQ
What is the maximum clamping voltage of the BZA820A,115 during an 8 kV ESD event?
The BZA820A,115 does not specify a single maximum clamping voltage in its datasheet, but measured clamping performance under IEC 1000-4-2 ±8 kV contact discharge shows typical clamped voltage ≤25 V at peak current. This value depends on PCB layout inductance and grounding - the BZA820A,115's 125 Ω differential resistance and 20 V working voltage define the baseline clamping behavior under standardized test conditions.
Can the BZA820A,115 be used to protect 24 V industrial sensor lines?
Yes, the BZA820A,115 is suitable for protecting 24 V sensor lines because its 20 V working voltage provides sufficient margin above the 15 V reverse test condition and allows safe operation up to the 21 V maximum Zener voltage. Its ≤100 nA reverse leakage at 15 V prevents loading of high-impedance sensor outputs, and its 17 W peak power rating handles typical industrial ESD transients without degradation.
Is the BZA820A,115 RoHS compliant and halogen-free?
Yes, the BZA820A,115 is RoHS compliant and halogen-free. As a Nexperia product manufactured after the 2017 transition from NXP Standard Products, it conforms to EU RoHS Directive 2011/65/EU and IEC 61249-2-21:2011 for bromine and chlorine content. Full compliance documentation, including material declarations and test reports, is available upon request for the BZA820A,115.
Does the BZA820A,115 require external series resistors for optimal ESD protection?
No, the BZA820A,115 does not require external series resistors for basic ESD protection, as it is designed for direct placement at connectors. However, adding a small series resistor (e.g., 10–100 Ω) between the protected line and the BZA820A,115 cathode can reduce di/dt-induced voltage overshoot in high-energy transients - especially when long traces exist between the suppressor and IC input.
What is the thermal derating behavior of the BZA820A,115 above 25 °C ambient?
The BZA820A,115 has a total power dissipation limit of 335 mW at Tamb = 25 °C, derating linearly to zero at 150 °C junction temperature. Its thermal resistance is 370 K/W, so at 75 °C ambient, maximum allowable power drops to approximately 225 mW. This derating must be considered when estimating sustained ESD duty cycle or ambient temperature extremes in the final application of the BZA820A,115.
BZA820A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 17W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 50pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
BZA820A,115 FAQ
1.How can I place an order for BZA820A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZA820A,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 BZA820A,115 reliable?
The price and inventory of BZA820A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZA820A,115 is usually 5 days.
3.What payment methods are accepted for BZA820A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZA820A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZA820A,115?
BZA820A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZA820A,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 BZA820A,115?
For technical support, including BZA820A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZA820A,115 requirements.
6.How does Aetrix verify that BZA820A,115 is sourced from the original manufacturer or authorized distributors?
All BZA820A,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 BZA820A,115 meets industry standards.
7.What is the process for return or replacement of BZA820A,115?
All BZA820A,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZA820A,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 BZA820A,115 part is unused and in its original packaging.
Return procedure for BZA820A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZA820A,115 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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