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Nexperia USA Inc. BZB984-C5V1,115
- Part No.:
- BZB984-C5V1,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- SOT-663
- Datasheet:
-
BZB984-C5V1,115.pdf
- Description:
- DIODE ZENER ARRAY 5.1V SOT663
- Quantity:
- Payment:
- Shipping:
Inventory:594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZB984-C5V1,115 from Nexperia is a dual Zener voltage regulator diode in SOT663 package, configured as two cathodes sharing a common anode (CA–K1–K2), with nominal 5.1 V regulation at 5 mA, ±5% tolerance, and 400 Ω typical differential resistance. It delivers ESD/surge protection and low-power voltage reference functions in space-constrained consumer and industrial PCBs.
For engineers reviewing the BZB984-C5V1,115 datasheet, BZB984-C5V1,115 pinout, BZB984-C5V1,115 application, or BZB984-C5V1,115 equivalent, this device is selected for dual-rail clamping, precision biasing in analog front-ends, and compact dual-Zener reference generation where thermal coupling and footprint minimization are critical.
Technical Context
This double Zener diode integrates two independent 5.1 V Zener elements sharing a single anode terminal, enabling symmetrical bidirectional clamping or independent low-current regulation paths. Its CA–K1–K2 topology supports both series-shunt and parallel-shunt configurations without external node splitting.
Designed for operation at ≤25 °C ambient on FR4 PCB with standard footprint, it sustains 265 mW total dissipation when one diode is active and 425 mW when both are simultaneously loaded - validated under IEC 60134 absolute maximum ratings with 150 °C junction limit and 125 K/W junction-to-solder-point thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ IZ = 5 mA | 4.8 V to 5.4 V - defines usable regulation window for stable 5.1 V reference under nominal bias |
| rdif | 400 Ω max - limits output impedance drift across load current changes in reference circuits |
| IR @ VR = 2 V | 2 μA max - ensures minimal leakage in high-impedance bias networks |
| VF @ IF = 10 mA | 0.9 V max - enables forward conduction for bidirectional transient suppression |
| Ptot (2 diodes) | 425 mW - sets maximum continuous power budget for dual-diode operation on standard FR4 |
| Tj max | 150 °C - constrains thermal design margin when mounted on single-sided tin-plated PCB |
| Rth(j-sp) | 125 K/W - quantifies thermal path efficiency from junction to solder point for reliability modeling |
Pinout & Package
SOT663 ultra-small flat plastic SMD package (1.7 × 1.5 × 0.5 mm) with gull-wing leads; optimized for reflow soldering only per Nexperia's footprint guidelines (2.45 mm × 1.6 mm land pattern).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode 1 | Primary Zener cathode for first 5.1 V regulation path; reverse-biased during clamping |
| 2 (K2) | Cathode 2 | Independent second cathode enabling dual-rail or redundant reference capability |
| 3 (CA) | Common Anode | Shared anode node allowing compact dual-Zener integration without discrete interconnect |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zener architecture | Two matched 5.1 V Zeners sharing CA terminal - eliminates board routing between anodes and reduces layout area by ~40% vs discrete pair |
| ±5% VZ tolerance | Guarantees regulation within 4.8–5.4 V at 5 mA - suitable for non-critical biasing and clamping where tight tolerance isn't required |
| Ultra-small SOT663 footprint | 1.7 mm × 1.5 mm body - fits in <1.5 mm² PCB area, ideal for wearables and sensor modules with strict size constraints |
| ESD/surge-rated construction | Withstands 40 W non-repetitive peak reverse power (tp = 100 μs) - provides robust transient immunity in I/O protection circuits |
| Low thermal resistance | Rth(j-sp) = 125 K/W (2 diodes) - enables higher sustained power handling than comparable SOD-323 dual diodes |
Applications
| USB Port ESD Protection | Low-Power Sensor Biasing |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+/D− lines from IEC 61000-4-2 contact discharge up to ±8 kV. IC Role / Device Role / Timing Role: Dual-Zener clamp referenced to VBUS, using K1/K2 for D+ and D−, CA tied to VBUS. Use Value: Simultaneous bidirectional clamping with matched VZ ensures symmetric voltage limiting and prevents data line latch-up. |
Use Scenario: Providing stable 5.1 V bias to op-amp input stages in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Precision shunt reference for rail-splitting or ADC reference divider networks. Use Value: Low 2 μA reverse leakage at 2 V ensures minimal current draw in sleep mode, extending battery life. |
| Industrial IO Module Clamping | Compact Power Sequencing Reference |
|
Use Scenario: Safeguarding 24 V digital input channels against surges and field-wiring transients. IC Role / Device Role / Timing Role: Zener clamp between signal line and 24 V rail, with CA connected to rail and K1/K2 to inputs. Use Value: 425 mW dual-diode power rating allows sustained clamping during repetitive 100 μs transients without thermal runaway. |
Use Scenario: Generating synchronized enable thresholds for multi-rail DC/DC converters in FPGA power supplies. IC Role / Device Role / Timing Role: Dual-reference source feeding comparators that monitor 3.3 V and 5.0 V rails. Use Value: Matched temperature coefficient (−0.5 mV/K typical) ensures consistent trip-point tracking across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F (Diodes Inc.) | Single-anode dual-cathode SOT-363; VZ = 2.4 V, 5% tol., rdif = 30 Ω max | Lower VZ, tighter rdif, but lower Ptot (200 mW) and no 5.1 V option | Select for 2.4 V reference or tighter impedance control; not drop-in for 5.1 V systems |
| BZX84-C5V1 (Nexperia) | Single Zener in SOT-23; same VZ/tolerance, but no dual-diode topology or CA–K1–K2 pinout | Requires two devices + extra routing for dual-rail use; larger total footprint (2× SOT-23 vs 1× SOT663) | Select when dual functionality is unnecessary or when legacy SOT-23 layout compatibility is mandatory |
Compared with MMBZ5221BS-7-F and BZX84-C5V1, the BZB984-C5V1,115 uniquely delivers matched 5.1 V dual regulation in minimal area with integrated common anode - eliminating component count, routing complexity, and thermal mismatch penalties inherent in discrete solutions.
Availability
BZB984-C5V1,115 is available at Aetrix Electronics and suitable for USB interface protection, low-power sensor biasing, and industrial I/O module clamping requiring stable component supply and long-term obsolescence management.
Supply support for BZB984-C5V1,115 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 compact dual-rail voltage reference and ESD protection in space-constrained consumer and industrial electronics.
FAQ
What is the maximum continuous reverse current the BZB984-C5V1,115 can sustain at 5.1 V?
The device is rated for 5 mA nominal Zener test current, with maximum continuous reverse current limited by thermal dissipation: at 25 °C ambient on FR4, 265 mW total power allows ~52 mA average current if VZ remains stable, but derating is required above 25 °C per Rth(j-a) = 472 K/W (1 diode loaded). Sustained operation above 10 mA requires thermal analysis.
Can the BZB984-C5V1,115 be used for bidirectional TVS protection?
No - it is not rated as a TVS diode. While its 40 W non-repetitive peak reverse power (tp = 100 μs) supports surge clamping, it lacks specified IEC 61000-4-5 waveforms, clamping voltage curves, or guaranteed response time. It functions as a Zener regulator/clamp, not a dedicated transient suppressor.
How does the common anode configuration affect circuit layout compared to dual SOT-23 Zeners?
The CA–K1–K2 pinout eliminates the need for separate anode traces, reducing net count by one and minimizing parasitic inductance between anodes. Layout occupies 1.7 mm × 1.5 mm versus ≥4.5 mm² for two SOT-23 devices, and ensures identical thermal coupling - critical for matched temperature drift in reference applications.
Is the BZB984-C5V1,115 automotive qualified?
No - per Nexperia's revision history (Rev. 3, Dec 2022), this part is explicitly marked "non-automotive qualified" and has not undergone AEC-Q101 stress testing or automotive-grade process qualification. It is intended for commercial and industrial applications only.
BZB984-C5V1,115 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):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 265 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-663
BZB984-C5V1,115 FAQ
1.How can I place an order for BZB984-C5V1,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB984-C5V1,115 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-C5V1,115 reliable?
The price and inventory of BZB984-C5V1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB984-C5V1,115 is usually 5 days.
3.What payment methods are accepted for BZB984-C5V1,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB984-C5V1,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB984-C5V1,115?
BZB984-C5V1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB984-C5V1,115 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-C5V1,115?
For technical support, including BZB984-C5V1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB984-C5V1,115 requirements.
6.How does Aetrix verify that BZB984-C5V1,115 is sourced from the original manufacturer or authorized distributors?
All BZB984-C5V1,115 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-C5V1,115 meets industry standards.
7.What is the process for return or replacement of BZB984-C5V1,115?
All BZB984-C5V1,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZB984-C5V1,115, 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-C5V1,115 part is unused and in its original packaging.
Return procedure for BZB984-C5V1,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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