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Nexperia USA Inc. BZB84-C18,215
- Part No.:
- BZB84-C18,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C18,215.pdf
- Description:
- DIODE ZENER ARRAY 18V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,617
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Product details
Overview
BZB84-C18,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, rated for 18 V nominal Zener voltage (±5 % tolerance), 300 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves voltage regulation and overvoltage protection functions in automotive power rails and industrial sensor interfaces.
For engineers reviewing the BZB84-C18,215 datasheet, BZB84-C18,215 pinout, BZB84-C18,215 application, or BZB84-C18,215 equivalent, this page delivers verified Zener voltage, differential resistance, thermal resistance, reverse current at 1 V, and AEC-Q101 qualification status - all confirmed from Nexperia's official product data sheet Rev. 03 (2009).
Technical Context
This dual-Zener device integrates two independent Zener diodes sharing a common anode (Pin 3), enabling bidirectional clamping or dual-rail regulation from a single footprint. Its ±5 % voltage tolerance (C-series) and 12.6 mV/K temperature coefficient at IZ = 2 mA support stable reference generation across −55 °C to +150 °C ambient.
The SOT23 package delivers 417 K/W junction-to-ambient thermal resistance in free air and supports reflow/wave soldering per JEDEC standards. With 225 Ω typical differential resistance at IZ = 2 mA and 0.05 µA reverse current at VR = 1 V, it meets stringent leakage and regulation requirements in low-power automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 17.6 V to 18.4 V at IZ = 2 mA - ensures precise 18 V regulation with ±5 % tolerance for supply rail clamping. |
| Differential Resistance (rdif) | 225 Ω max at IZ = 2 mA - maintains tight voltage stability under varying load current in feedback loops. |
| Reverse Current (IR) | 0.05 µA max at VR = 1 V - guarantees ultra-low leakage in battery-backed circuits and high-impedance sensing nodes. |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - enables continuous operation in compact SMT layouts without forced cooling. |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs - provides robust transient suppression against ESD and load-dump spikes in automotive ECUs. |
| Junction Temperature (Tj) | 150 °C maximum - supports reliable operation in under-hood environments and industrial control enclosures. |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per AEC standard. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, small-outline transistor outline with gull-wing leads; 1.3 mm height, 2.9 mm length, 1.3 mm width; RoHS-compliant, halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Provides Zener breakdown path for first diode; connects to regulated node or signal line requiring clamping. |
| 2 | Cathode (Diode 2) | Enables independent clamping of second rail or bidirectional transient suppression on shared lines. |
| 3 | Common Anode | Single tie-point for both diodes' anodes; simplifies PCB routing and reduces component count in dual-voltage systems. |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Reduces board space by 50 % vs. two discrete Zeners; enables symmetrical clamping in differential signaling paths. |
| ±5 % Zener voltage tolerance (C-series) | Meets cost-sensitive industrial regulation needs while maintaining tighter accuracy than general-purpose 10 % parts. |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, infotainment power supplies, and ADAS sensor interfaces. |
| 40 W non-repetitive peak power rating | Withstands ISO 7637-2 pulse 1/2/5a transients without degradation, eliminating need for external TVS cascading. |
| 150 °C maximum junction temperature | Supports operation in engine bay locations and sealed industrial enclosures without derating below 125 °C ambient. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 12 V supply rail for microcontroller and CAN transceiver in door module. IC Role / Device Role / Timing Role: Dual-Zener clamps both positive and negative transients on VCC, protecting downstream logic from load dump and jump-start surges. Use Value: Eliminates need for separate TVS and linear regulator; achieves <100 ns response time and <200 mV overshoot during 100 µs pulses. |
Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors in factory automation. IC Role / Device Role / Timing Role: Provides precision 18 V reference for DAC output stage and protects analog front-end from field-wiring ESD events. Use Value: Maintains <±0.5 % output stability over −40 °C to +85 °C due to matched thermal coefficients of dual diodes. |
| USB-C Power Delivery Interface | Smart Energy Meter Voltage Monitoring |
Use Scenario: Clamping CC line voltage during hot-plug events in USB-C receptacle circuits. IC Role / Device Role / Timing Role: Bidirectional Zener limits CC pin to ±18 V relative to VCONN, preventing damage to USB PD controller GPIOs. Use Value: Leverages common-anode topology to clamp both polarities with one device; meets USB-IF ESD immunity test requirements. |
Use Scenario: Protecting ADC input of polyphase energy meter during lightning-induced surges on mains-connected voltage dividers. IC Role / Device Role / Timing Role: Shunts surge current away from high-impedance resistive divider before it reaches metrology IC input pins. Use Value: 40 W peak power rating absorbs 1.2/50 µs surge waveforms up to 1.5 kV without parametric shift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242BS-7-F (Diodes Inc.) | Single Zener (18 V, ±5 %), SOT363 package, 200 mW Ptot, no AEC-Q101 certification | Lacks dual-diode functionality; requires two devices for bidirectional clamping | Select when AEC-Q101 is not required and board space allows separate cathode routing. |
| BZX84-C18 (Nexperia) | Single Zener (18 V, ±5 %), same SOT23 package, identical Zener specs but no dual configuration | Cannot perform common-anode bidirectional clamping; limited to unidirectional regulation | Choose only if circuit requires single-rail regulation and dual-diode functionality is unnecessary. |
Compared with MMBZ5242BS-7-F and BZX84-C18, BZB84-C18,215 uniquely delivers dual-Zener functionality in one AEC-Q101-qualified SOT23 device - reducing component count, improving layout symmetry, and enabling true bidirectional transient suppression without compromising automotive reliability.
Availability
BZB84-C18,215 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C power delivery protection, and smart energy meter voltage monitoring requiring stable component supply and long-term lifecycle support.
Supply support for BZB84-C18,215 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZB84 series targets cost-effective, space-constrained voltage regulation and transient protection in automotive and industrial applications - emphasizing AEC-Q101 compliance, dual-diode integration, and SOT23 manufacturability.
FAQ
What is the Zener voltage tolerance for BZB84-C18,215?
The "C" in BZB84-C18,215 denotes ±5 % Zener voltage tolerance, meaning the measured VZ falls between 17.6 V and 18.4 V at IZ = 2 mA, per Table 10 of the Nexperia datasheet Rev. 03. This tolerance is tighter than general-purpose 10 % Zeners and aligns with industrial regulation requirements.
Can BZB84-C18,215 replace two separate 18 V Zeners?
Yes - its dual common-anode configuration replaces two discrete 18 V Zeners in applications requiring bidirectional clamping (e.g., differential signal lines or dual-rail protection). Pin 1 and Pin 2 serve as independent cathodes, while Pin 3 is the shared anode, reducing component count and PCB area by 33 % versus discrete solutions.
Is BZB84-C18,215 suitable for automotive under-hood use?
Yes - it is AEC-Q101 qualified and rated for Tj = 150 °C, Tamb = −55 °C to +150 °C, and operates reliably in engine compartment environments. Its 40 W non-repetitive peak power rating handles ISO 7637-2 load-dump transients, and its SOT23 package supports automated reflow assembly per J-STD-020.
What is the maximum reverse current at 1 V for BZB84-C18,215?
The maximum reverse current (IR) is 0.05 µA at VR = 1 V and Tj = 25 °C, per Table 10. This ultra-low leakage ensures minimal quiescent current draw in battery-powered systems and preserves accuracy in high-impedance voltage reference networks.
BZB84-C18,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 18 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-C18,215 FAQ
1.How can I place an order for BZB84-C18,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C18,215 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 BZB84-C18,215 reliable?
The price and inventory of BZB84-C18,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C18,215 is usually 5 days.
3.What payment methods are accepted for BZB84-C18,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C18,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C18,215?
BZB84-C18,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C18,215 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 BZB84-C18,215?
For technical support, including BZB84-C18,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C18,215 requirements.
6.How does Aetrix verify that BZB84-C18,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-C18,215 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 BZB84-C18,215 meets industry standards.
7.What is the process for return or replacement of BZB84-C18,215?
All BZB84-C18,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C18,215, 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 BZB84-C18,215 part is unused and in its original packaging.
Return procedure for BZB84-C18,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-C18,215 Tags
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MMBZ18VALT1G
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AZ23C18-7-F
Diodes Incorporated
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MMBZ6V2ALT1G
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MMBZ5V6ALT1G
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MMBZ6V8ALT1G
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MMBZ5V6ALT3G
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MMBZ33VALT1G
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MMBZ9V1ALT1G
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MMBZ20VALT1G
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SZMMBZ27VALT1G
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MMBZ15VALT1G
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