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NXP Semiconductors BZB84-C4V3,215
- Part No.:
- BZB84-C4V3,215
- Manufacturer:
- NXP Semiconductors
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C4V3,215.pdf
- Description:
- NOW NEXPERIA BZB84-C4V3 - ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:147,000
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Product details
Overview
BZB84-C4V3,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, rated for 4.0–4.6 V nominal Zener voltage at 5 mA, 300 mW total power dissipation, and ±5 % tolerance. It delivers stable voltage regulation in compact automotive and industrial power rails, supporting dual-rail clamping or bidirectional overvoltage protection.
For engineers reviewing the BZB84-C4V3,215 datasheet, BZB84-C4V3,215 pinout, BZB84-C4V3,215 application, or BZB84-C4V3,215 equivalent, this page provides verified pin mapping, AEC-Q101 qualification status, dual-Zener thermal derating behavior, and direct substitution guidance against industry-standard 4.3 V Zener pairs.
Technical Context
This dual Zener diode integrates two independent 4.3 V (nominal) Zener junctions sharing a common anode terminal, enabling symmetrical clamping of differential signals or independent regulation of two low-current nodes. Its 90 Ω typical differential resistance at 5 mA ensures tight voltage control under load variation.
Designed for surface-mount reliability, it operates across −55 °C to +150 °C ambient, with 417 K/W junction-to-ambient thermal resistance on FR4 PCB and AEC-Q101 qualification confirming suitability for automotive body electronics and engine control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.0–4.6 V at IZ = 5 mA - defines clamping threshold for overvoltage protection circuits |
| Tolerance | ±5 % - enables cost-effective selection for non-critical regulation where tighter tolerance is unnecessary |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power per device before thermal derating applies |
| Non-repetitive Peak Power | 40 W for tp = 100 µs - supports transient surge suppression in ESD or load-dump scenarios |
| Forward Voltage | ≤ 0.9 V at IF = 10 mA - ensures low-loss conduction when used as a forward-biased clamp or reference |
| Junction Temperature | 150 °C max - allows operation in under-hood automotive environments without forced cooling |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SOT23 (TO-236AB), 3-lead plastic surface-mount package with standard footprint for reflow and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to regulated node or signal line requiring clamping to 4.3 V above common anode |
| 2 | Cathode (Diode 2) | Independent cathode for second regulated node or complementary clamping path |
| 3 | Common Anode | Shared reference terminal; ties both Zeners to ground or system return plane |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Enables bidirectional voltage clamping or dual-rail regulation using one footprint, reducing board area vs. discrete diodes |
| ±5 % Zener tolerance (C-series) | Provides predictable voltage margin for cost-sensitive industrial sensors and power supply feedback networks |
| AEC-Q101 qualification | Confirms robustness for automotive applications including infotainment power supplies and CAN bus protection |
| 40 W non-repetitive peak power | Supports transient immunity to ISO 7637-2 pulse 1/2a/5a surges without external TVS augmentation |
| SOT23 package compatibility | Matches standard pick-and-place tooling and reflow profiles, eliminating need for custom assembly processes |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping LIN bus transceiver I/O lines against load dump and battery reversal transients. IC Role / Device Role / Timing Role: Dual Zener acts as bidirectional rail clamp between LIN PHY and microcontroller GPIO, referenced to chassis ground. Use Value: Prevents latch-up in LIN transceivers during 12 V system surges up to 40 V, leveraging 40 W peak power rating and AEC-Q101 stress validation. |
Use Scenario: Stabilizing 5 V reference for 12-bit ADC inputs in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Provides low-drift, low-noise 4.3 V shunt reference for precision op-amp biasing and ADC input scaling. Use Value: Achieves ±5 % initial accuracy and <1.5 mV/K tempco over −40 °C to +125 °C, meeting industrial sensor calibration requirements. |
| USB-C Port Overvoltage Protection | Smart Meter Power Supply Feedback |
Use Scenario: Protecting USB-C CC logic pins from accidental 20 V PD negotiation voltage exposure. IC Role / Device Role / Timing Role: Dual Zener clamps CC1/CC2 lines to 4.3 V relative to VCONN, limiting fault current during misconfiguration. Use Value: Limits fault energy to <100 mJ per event using 100 µs surge rating, avoiding damage to Type-C controller ICs. |
Use Scenario: Regulating auxiliary 3.3 V rail derived from flyback converter output in electricity meters. IC Role / Device Role / Timing Role: Shunt regulator for optocoupler feedback loop, maintaining isolated output voltage within ±3 % over line/load variation. Use Value: Delivers 300 mW continuous dissipation capability and 90 Ω dynamic impedance to sustain regulation under 15 mA load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Single Zener (3.6 V), SOT363, ±5 %, 200 mW | Requires two devices for dual-rail use; lower power rating limits surge handling | Select only if space permits separate placement and peak power demand is <25 W |
| BZX84-C4V3,215 | Single Zener (4.3 V), SOT23, ±5 %, 300 mW | Lacks dual-cathode topology; cannot provide symmetrical clamping without external routing | Choose when only one regulated node exists and board layout favors single-diode simplicity |
Compared with MMBZ5227BS-7-F and BZX84-C4V3,215, the BZB84-C4V3,215 uniquely integrates dual 4.3 V Zeners in one SOT23, reducing component count by 50 % and enabling matched thermal response in bidirectional protection schemes-critical for automotive LIN and USB-C designs.
Availability
BZB84-C4V3,215 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C port protection, and smart meter power management requiring stable component supply and AEC-Q101 compliance.
Supply support for BZB84-C4V3,215 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The BZB84 series belongs to Nexperia's automotive-grade Zener portfolio, engineered specifically for robust voltage regulation and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum continuous reverse current the BZB84-C4V3,215 can sustain at 25 °C ambient?
At 25 °C ambient, the device sustains up to 69 mA continuous reverse current (calculated from Ptot = 300 mW ÷ VZ ≈ 300 mW ÷ 4.3 V), assuming ideal heat sinking. Derating begins linearly above 25 °C at 2.4 mW/°C based on its 417 K/W Rth(j-a).
Can the BZB84-C4V3,215 be used for ESD protection on high-speed data lines like I²C?
No-it is not optimized for ESD. With 450 pF capacitance at 0 V and slow Zener turn-on, it introduces excessive signal distortion on I²C (400 kHz) or higher-speed buses. Use dedicated low-capacitance TVS arrays like PESD5V0S1BA for such applications.
How does the common-anode configuration affect PCB layout for bidirectional clamping?
The common-anode pin (Pin 3) must connect directly to the reference plane (e.g., ground or VREF). Cathodes (Pins 1 and 2) route separately to protected nodes. This avoids shared trace inductance that could unbalance clamping action during fast transients.
Is the 40 W non-repetitive peak power rating valid for both diodes simultaneously?
Yes-the 40 W rating applies per diode. When both cathodes conduct simultaneously (e.g., differential surge), total dissipation may reach 80 W briefly, but thermal coupling in the SOT23 package requires limiting simultaneous conduction duration to <50 µs to avoid junction overheating beyond 150 °C.
BZB84-C4V3,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23
BZB84-C4V3,215 FAQ
1.How can I place an order for BZB84-C4V3,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C4V3,215 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-C4V3,215 reliable?
The price and inventory of BZB84-C4V3,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C4V3,215 is usually 5 days.
3.What payment methods are accepted for BZB84-C4V3,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C4V3,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C4V3,215?
BZB84-C4V3,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C4V3,215 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-C4V3,215?
For technical support, including BZB84-C4V3,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C4V3,215 requirements.
6.How does Aetrix verify that BZB84-C4V3,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-C4V3,215 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-C4V3,215 meets industry standards.
7.What is the process for return or replacement of BZB84-C4V3,215?
All BZB84-C4V3,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C4V3,215, 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-C4V3,215 part is unused and in its original packaging.
Return procedure for BZB84-C4V3,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-C4V3,215 Tags
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