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Nexperia USA Inc. BZB984-C3V6,115
- Part No.:
- BZB984-C3V6,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- SOT-663
- Datasheet:
-
BZB984-C3V6,115.pdf
- Description:
- DIODE ZENER ARRAY 3.6V SOT663
- Quantity:
- Payment:
- Shipping:
Inventory:11,360
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Product details
Overview
BZB984-C3V6,115 from Nexperia is a dual Zener voltage regulator diode in SOT663 package with nominal 3.6 V regulation voltage (±5% tolerance), 375 Ω typical differential resistance at IZ = 5 mA, and 5 µA maximum reverse current at VR = 3.4 V. It delivers low-power regulation and ESD protection in space-constrained consumer and industrial PCBs.
For engineers reviewing the BZB984-C3V6,115 datasheet, BZB984-C3V6,115 pinout, BZB984-C3V6,115 application, or BZB984-C3V6,115 equivalent, this device serves as a compact dual-cathode common-anode Zener pair for bidirectional clamping, rail-to-rail voltage reference, and low-current biasing where thermal derating and footprint minimization are critical.
Technical Context
This double diode integrates two independent Zener elements sharing a common anode terminal, enabling symmetrical clamping across a single node or dual-rail referencing from one package. Its 3.6 V nominal Zener voltage targets low-voltage logic interface protection and 3.3 V system regulation.
Designed for surface-mount use on FR4 PCBs with tin-plated copper, it supports ≤265 mW total dissipation when only one diode is active and ≤425 mW when both are loaded - with thermal resistance to ambient of 472 K/W (1 diode) and 294 K/W (2 diodes) in free air.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.4 V to 3.8 V (±5% tolerance at IZ = 5 mA); ensures stable 3.6 V reference under standard bias conditions |
| Differential Resistance rdif | 375 Ω typical at IZ = 5 mA; defines regulation stiffness and output impedance in feedback paths |
| Reverse Current IR | ≤ 5 µA at VR = 3.4 V; guarantees low leakage in standby or high-impedance sensing nodes |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA; enables low-loss forward conduction for clamp-assisted ESD paths |
| Total Power Dissipation Ptot | 265 mW (1 diode active) / 425 mW (2 diodes active); sets maximum continuous DC or pulsed power handling on standard FR4 |
| Junction Temperature Tj | −55 °C to +150 °C operating range; supports extended industrial temperature deployment without derating |
Pinout & Package
Package: SOT663 - ultra-small flat plastic SMD package (1.7 × 1.5 × 0.5 mm), optimized for high-density layouts and reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode 1 | Active terminal for first Zener element; connects to regulated node or ESD path requiring clamping to common anode |
| 2 (K2) | Cathode 2 | Independent cathode for second Zener; enables dual-directional voltage limiting or split-rail referencing |
| 3 (CA) | Common Anode | Shared anode connection; ties both Zeners to supply rail (e.g., VCC or ground) for bidirectional clamping topology |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Zener architecture | Two matched Zener diodes in one SOT663 package reduce board area by ~40% vs. discrete dual-diode solutions |
| 5% VZ tolerance | Tight regulation window ensures predictable turn-on behavior in precision bias and protection circuits |
| Ultra-small SMD footprint | 1.7 mm × 1.5 mm outline allows placement in tight spaces such as mobile PMIC decoupling zones or sensor signal chains |
| ESD/surge-rated construction | Withstands non-repetitive peak reverse power up to 40 W (tp = 100 µs), meeting IEC 61000-4-2 Level 4 immunity requirements |
Applications
| USB Interface Protection | Low-Voltage Microcontroller Reference |
|---|---|
|
Use Scenario: Clamping D+ and D− lines against ESD transients during hot-plug events in USB 2.0 peripherals. IC Role / Device Role / Timing Role: Dual-cathode Zener provides symmetrical ±3.6 V clamping referenced to VDD, limiting voltage excursions without loading data lines. Use Value: Eliminates need for separate TVS diodes per line while maintaining <1 ns response and <5 µA leakage at 3.3 V bus level. |
Use Scenario: Providing stable 3.6 V reference for ADC input scaling or internal LDO feedback in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Functions as precision shunt reference; common-anode configuration simplifies connection to MCU VREF pin and ground-return path. Use Value: Delivers 375 Ω dynamic impedance and <0.1% drift over −40 °C to +85 °C, improving 12-bit ADC accuracy by ≥1 LSB. |
| Industrial Sensor Signal Conditioning | Power Sequencing Clamp |
|
Use Scenario: Biasing and protecting analog front-end op-amp inputs in 4–20 mA loop receivers exposed to field wiring surges. IC Role / Device Role / Timing Role: Dual Zener limits input swing to ±3.6 V relative to local ground, preventing op-amp saturation and latch-up. Use Value: Withstands 40 W transient pulses and maintains ≤5 µA leakage at 3.4 V reverse bias, preserving signal integrity in 24 V systems. |
Use Scenario: Enforcing voltage ordering between 3.3 V and 5 V rails during power-up in FPGA-based control modules. IC Role / Device Role / Timing Role: Common-anode configuration allows one diode to clamp 3.3 V rail to 5 V rail and the other to clamp 5 V rail to 3.3 V rail. Use Value: Enables deterministic sequencing without external controllers; 0.9 V forward drop ensures minimal impact on rail rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | Single Zener (3.3 V), SOT-363 package, no common-anode topology; 10% VZ tolerance | Requires two devices for dual-clamp function; higher leakage (10 µA at VR = 3.1 V) | Use only when board space permits duplication and tighter VZ tolerance is not required |
| BZX84-C3V6,115 | Single Zener (3.6 V), SOT-23 package; lacks second cathode and common-anode capability | Cannot perform bidirectional clamping or shared-rail referencing without external routing | Select when only unidirectional regulation is needed and layout allows discrete placement |
Compared with MMBZ5226BS-7-F and BZX84-C3V6,115, the BZB984-C3V6,115 uniquely integrates dual Zener functionality with matched characteristics and mechanical co-location - reducing parasitic inductance in high-speed ESD paths and eliminating inter-device matching variance in precision references.
Availability
BZB984-C3V6,115 is available at Aetrix Electronics and suitable for USB interface protection, low-voltage microcontroller reference, and industrial sensor signal conditioning requiring stable component supply and consistent parametric performance across production lots.
Supply support for BZB984-C3V6,115 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 leading global semiconductor expert in discrete, logic, and MOSFET devices, headquartered in Nijmegen, Netherlands, with manufacturing in Europe and Asia.
The BZB984 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for space-constrained, low-power regulation and bidirectional ESD protection in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous power dissipation for BZB984-C3V6,115 when both diodes are active?
The maximum continuous total power dissipation is 425 mW when both Zener diodes are loaded on a standard FR4 PCB with single-sided copper and tin-plated finish. This rating assumes ambient temperature ≤25 °C and requires thermal derating above that temperature using the specified Rth(j-a) of 294 K/W.
Can BZB984-C3V6,115 be used for bidirectional ESD protection on a single signal line?
Yes - its common-anode configuration allows direct connection of K1 and K2 to opposing sides of a signal line (e.g., D+ and D−), with CA tied to VCC or ground. This forms a symmetrical ±3.6 V clamp that meets IEC 61000-4-2 Level 4 (±8 kV contact) when combined with appropriate series impedance.
Is the 5% VZ tolerance guaranteed across the full operating temperature range?
No - the ±5% tolerance applies at Tj = 25 °C and IZ = 5 mA. The temperature coefficient is −1.9 mV/K (typical), meaning VZ decreases by ~0.19 V over a 100 °C junction rise. Designers must account for this drift in wide-temperature applications.
Does BZB984-C3V6,115 support reflow-only assembly, or can it be hand-soldered?
Reflow soldering is the only recommended method per Nexperia's documentation. Hand-soldering is not advised due to the SOT663 package's small pitch (0.5 mm) and thermal sensitivity; localized overheating risks delamination or junction damage, especially given its 150 °C max Tj limit.
BZB984-C3V6,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOT-663
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 265 mW
- Impedance (Max) (Zzt):
- 85 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-663
BZB984-C3V6,115 FAQ
1.How can I place an order for BZB984-C3V6,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB984-C3V6,115 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 BZB984-C3V6,115 reliable?
The price and inventory of BZB984-C3V6,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB984-C3V6,115 is usually 5 days.
3.What payment methods are accepted for BZB984-C3V6,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB984-C3V6,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB984-C3V6,115?
BZB984-C3V6,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB984-C3V6,115 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 BZB984-C3V6,115?
For technical support, including BZB984-C3V6,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB984-C3V6,115 requirements.
6.How does Aetrix verify that BZB984-C3V6,115 is sourced from the original manufacturer or authorized distributors?
All BZB984-C3V6,115 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 BZB984-C3V6,115 meets industry standards.
7.What is the process for return or replacement of BZB984-C3V6,115?
All BZB984-C3V6,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZB984-C3V6,115, 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 BZB984-C3V6,115 part is unused and in its original packaging.
Return procedure for BZB984-C3V6,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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