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Nexperia USA Inc. BZB84-B3V9,215
- Part No.:
- BZB84-B3V9,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-B3V9,215.pdf
- Description:
- DIODE ZENER ARRAY 3.9V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,670
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Product details
Overview
BZB84-B3V9,215 from Nexperia is a dual common-anode Zener diode in SOT23 (TO-236AB) package, designed for precision voltage regulation and transient suppression in compact DC power rails. It delivers nominal 3.9 V Zener voltage (±2 % tolerance), ≤90 Ω differential resistance at IZ = 5 mA, ≤3 µA reverse current at VR = 3 V, and supports automotive-grade reliability per AEC-Q101.
For engineers reviewing the BZB84-B3V9,215 datasheet, BZB84-B3V9,215 pinout, BZB84-B3V9,215 application, or BZB84-B3V9,215 equivalent, this device serves as a space-constrained dual-voltage reference or bidirectional overvoltage clamp in low-power sensor interfaces, automotive body electronics, and industrial I/O protection circuits.
Technical Context
The BZB84-B3V9,215 integrates two matched Zener diodes sharing a common anode (Pin 3), enabling symmetrical clamping or dual-rail regulation from a single footprint. Its ±2 % VZ tolerance and −3.5 to 0 mV/K temperature coefficient ensure stable reference performance across −55 °C to +150 °C ambient.
With 300 mW total power dissipation and 40 W non-repetitive peak reverse power capability (tp = 100 µs), it handles both steady-state regulation and short-duration transients without derating beyond its thermal resistance of 417 K/W (junction-to-ambient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.82 V to 3.98 V at IZ = 5 mA - tight ±2 % tolerance enables accurate voltage referencing in feedback loops. |
| Differential Resistance (rdif) | ≤90 Ω at IZ = 5 mA - low impedance maintains regulation stability under load variation. |
| Reverse Current (IR) | ≤3 µA at VR = 3 V - minimal leakage preserves battery life in always-on circuits. |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sufficient for continuous operation in SOT23 without heatsinking. |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - robust surge handling for ESD and load-dump transients. |
| Junction Temperature (Tj) | 150 °C maximum - supports under-hood automotive environments and high-temperature PCB layouts. |
| AEC-Q101 Qualified | Yes - validated for automotive applications including body control modules and sensor signal conditioning. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, 1.3 mm × 2.9 mm × 1.1 mm body, tin-plated leads, FR4 PCB compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Provides Zener breakdown path from Pin 1 to common anode (Pin 3); used for positive rail clamping or reference. |
| 2 | Cathode (Diode 2) | Independent Zener cathode for second regulation path; enables bidirectional clamping when paired with Pin 1. |
| 3 | Common Anode | Shared anode node - simplifies PCB routing and enables dual-Zener functionality in minimal area. |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Reduces component count and board space vs. two discrete Zeners; enables symmetrical ±VZ clamping. |
| ±2 % Zener voltage tolerance (B-series) | Ensures predictable regulation threshold without post-manufacturing trimming in cost-sensitive designs. |
| AEC-Q101 qualification | Validated for automotive use - eliminates need for additional qualification testing in Tier-1 supply chains. |
| 40 W non-repetitive peak power | Withstands ISO 7637-2 pulse 1/2/5a surges without failure, reducing need for external TVS stages. |
| Low 3 µA reverse leakage at 3 V | Minimizes quiescent current in battery-backed systems such as CAN node wake-up circuits. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 3.3 V supply for LIN transceivers and door module microcontrollers. IC Role / Device Role / Timing Role: Dual Zener provides redundant voltage reference and overvoltage clamp on VCC and I/O lines. Use Value: Eliminates separate 3.3 V LDO and TVS, cutting BOM cost by $0.08/unit while meeting ISO 16750-2 surge requirements. |
Use Scenario: Protecting 4–20 mA current loop inputs from field wiring transients. IC Role / Device Role / Timing Role: Bidirectional clamping between signal line and ground using both cathodes referenced to common anode. Use Value: Limits input voltage to ±3.9 V during 1 kV EFT bursts, preserving ADC front-end integrity without signal distortion. |
| USB-C Power Delivery Monitor | Medical Wearable Battery Management |
Use Scenario: Reference voltage generation for CC line voltage detection in USB PD sink controllers. IC Role / Device Role / Timing Role: Precision 3.9 V Zener supplies stable bias to comparator input in PD policy engine. Use Value: ±2 % tolerance ensures reliable CC voltage interpretation across temperature, avoiding false PD contract failures. |
Use Scenario: Overvoltage protection for lithium coin-cell powered glucose meter analog front-end. IC Role / Device Role / Timing Role: Low-leakage Zener clamps op-amp inputs during ESD events without draining 20 µA standby current. Use Value: 3 µA max reverse current extends shelf life by >12 months versus standard 50 µA Zeners. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZB84-C3V9,215 | ±5 % VZ tolerance (vs. ±2 %), otherwise identical electrical specs and package. | Acceptable where cost sensitivity outweighs precision; unsuitable for closed-loop feedback references. | Select for non-critical biasing or general-purpose clamping where tighter tolerance is unnecessary. |
| MMBZ5226BS-7-F | Single Zener (3.3 V), SOT-363 package, 200 mW Ptot, no AEC-Q101 qualification. | Lacks dual-diode symmetry and automotive qualification; requires two devices for equivalent function. | Use only in commercial-grade, space-constrained applications where dual functionality and automotive compliance are not required. |
Compared with BZB84-C3V9,215, the BZB84-B3V9,215 offers higher precision for feedback paths; compared with MMBZ5226BS-7-F, it delivers integrated dual-clamp capability and automotive qualification in half the footprint.
Availability
BZB84-B3V9,215 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C PD monitoring, and medical wearable power management requiring stable component supply and long-term lifecycle assurance.
Supply support for BZB84-B3V9,215 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 energy-efficient solutions.
The BZB84 series targets compact, robust voltage regulation in automotive and industrial systems - engineered for AEC-Q101 compliance, wide temperature operation, and SMT manufacturability in space-constrained designs.
FAQ
What is the maximum continuous forward current for BZB84-B3V9,215?
The absolute maximum forward current is 200 mA per diode, as specified in the limiting values table. This rating applies under steady-state conditions with ambient temperature ≤25 °C and assumes proper PCB thermal relief. Derating is required above 25 °C ambient per the thermal resistance of 417 K/W.
Can BZB84-B3V9,215 be used for bidirectional ESD protection?
Yes - its dual common-anode configuration allows Pins 1 and 2 to clamp positive and negative transients respectively to Pin 3 (common anode). When Pin 3 is grounded, it provides ±3.9 V clamping; when biased, it enables programmable dual-rail protection without additional components.
How does the temperature coefficient affect regulation accuracy over temperature?
At 3.9 V nominal, the temperature coefficient ranges from −3.5 mV/K to 0 mV/K. Over −40 °C to +125 °C, this introduces up to ±43 mV drift - acceptable for non-critical biasing but insufficient for precision references without compensation. Use only where system-level calibration accounts for this drift.
Is the SOT23 footprint compatible with standard reflow profiles?
Yes - the device is qualified for lead-free reflow per J-STD-020. The recommended profile uses peak temperature ≤260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. Figure 8 in the datasheet provides the exact solder land pattern (0.6 mm × 0.5 mm pads, 2.8 mm pitch) for optimal wetting and void minimization.
BZB84-B3V9,215 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):
- 3.9 V
- Tolerance:
- ±2%
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-B3V9,215 FAQ
1.How can I place an order for BZB84-B3V9,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-B3V9,215 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-B3V9,215 reliable?
The price and inventory of BZB84-B3V9,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-B3V9,215 is usually 5 days.
3.What payment methods are accepted for BZB84-B3V9,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-B3V9,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-B3V9,215?
BZB84-B3V9,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-B3V9,215 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-B3V9,215?
For technical support, including BZB84-B3V9,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-B3V9,215 requirements.
6.How does Aetrix verify that BZB84-B3V9,215 is sourced from the original manufacturer or authorized distributors?
All BZB84-B3V9,215 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-B3V9,215 meets industry standards.
7.What is the process for return or replacement of BZB84-B3V9,215?
All BZB84-B3V9,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-B3V9,215, 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-B3V9,215 part is unused and in its original packaging.
Return procedure for BZB84-B3V9,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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