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Nexperia USA Inc. BZX884-B3V9,315
- Part No.:
- BZX884-B3V9,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884-B3V9,315.pdf
- Description:
- DIODE ZENER 3.9V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:3,761
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Product details
Overview
BZX884-B3V9,315 from Nexperia is a ±2 % tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 3.9 V nominal regulation at 5 mA, with 250 mW total power dissipation and 3 µA reverse current at VR = 3.9 V, used for precision voltage reference and ESD protection in space-constrained portable electronics.
For engineers reviewing the BZX884-B3V9,315 datasheet, BZX884-B3V9,315 pinout, BZX884-B3V9,315 application, or BZX884-B3V9,315 equivalent, key selection criteria include Zener voltage tolerance (±2 %), low dynamic impedance (400 Ω max at 1 mA), temperature coefficient (−1.9 mV/K), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its −1.9 mV/K temperature coefficient ensures predictable drift across −55 °C to +150 °C ambient range, and its 370 pF capacitance at 1 MHz supports high-frequency decoupling roles.
The device delivers 3.82–3.98 V regulation at IZ = 5 mA with differential resistance ≤400 Ω (at 1 mA) and ≤500 Ω (at 5 mA), enabling accurate clamping in low-power analog monitoring circuits and I/O line protection where tight voltage control is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.82–3.98 V at IZ = 5 mA; defines precise clamping threshold for 3.3 V rail protection |
| Tolerance | ±2 %; enables tighter regulation than ±5 % variants in feedback or reference paths |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C; limits continuous surge handling without derating on FR4 PCB |
| Reverse Current (IR) | 3 µA at VR = 3.9 V; ensures minimal leakage in battery-powered standby circuits |
| Differential Resistance (rdiff) | ≤400 Ω at IZtest = 1 mA; maintains regulation stability under light-load transients |
| Temperature Coefficient (SZ) | −1.9 mV/K at IZ = 5 mA; quantifies voltage drift per degree for thermal design margining |
| Capacitance (Cd) | 370 pF at f = 1 MHz, VR = 0 V; impacts high-frequency noise filtering effectiveness |
Pinout & Package
SOD882 (DFN1006-2) leadless ultra-small plastic package: 1.0 × 0.6 × 0.5 mm body, tin-plated copper terminals, marking bar indicates cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; polarity must be observed for correct reverse-bias operation |
| 2 (A) | Anode | Connected to ground or lower-potential reference; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including infotainment and body electronics |
| Ultra-small SOD882 footprint | Enables placement in 0402-class board areas, supporting miniaturized wearables and IoT sensors |
| Low leakage (3 µA @ 3.9 V) | Extends battery life in always-on monitoring circuits by minimizing quiescent current loss |
| High-speed ESD response | Sub-nanosecond turn-on supports IEC 61000-4-2 Level 4 (±15 kV air) transient suppression |
| Wide operating temperature | Functional from −55 °C to +150 °C junction, suitable for under-hood and industrial environments |
Applications
| USB Interface Protection | Automotive Sensor Reference |
|---|---|
Use Scenario: Clamping D+ and D− lines against ESD events in USB 2.0 peripherals. IC Role / Device Role / Timing Role: Zener diode acting as bidirectional transient voltage suppressor in series with TVS array. Use Value: 3.9 V breakdown prevents damage to 3.3 V PHY inputs while maintaining signal integrity up to 480 Mbps. |
Use Scenario: Providing stable bias voltage for MEMS pressure sensor bridge excitation in engine control units. IC Role / Device Role / Timing Role: Precision shunt reference replacing larger three-terminal regulators in low-current analog front-ends. Use Value: ±2 % tolerance and −1.9 mV/K TC ensure <±10 mV drift over −40 °C to +125 °C operating range. |
| Portable Medical Monitor Power Rail | Industrial PLC Input Conditioning |
Use Scenario: Regulating auxiliary 3.3 V supply for ADC reference in handheld ECG devices. IC Role / Device Role / Timing Role: Low-power Zener shunt regulator stabilizing LDO output under variable load. Use Value: 250 mW rating and 370 pF capacitance allow clean DC bias without oscillation or RF coupling. |
Use Scenario: Protecting 24 V digital input channels from field-induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection circuit ahead of optocoupler input. Use Value: AEC-Q101 qualification and 200 mA forward current rating support robust operation in harsh EMI environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884-C3V9,315 | ±5 % tolerance (3.71–4.10 V), higher rdiff (≤500 Ω at 5 mA) | Acceptable for non-critical biasing where cost sensitivity outweighs precision | Select when ±2 % tolerance is unnecessary and BOM cost reduction is prioritized |
| MMSZ4685T1G | 3.9 V ±5 %, SOD-123 package (1.8 × 1.4 × 1.0 mm), 500 mW Ptot | Higher power handling but 3× larger footprint; not AEC-Q101 qualified | Choose only if thermal margin exceeds 250 mW requirement and automotive qualification is not needed |
Compared with BZX884-C3V9,315, the BZX884-B3V9,315 offers tighter voltage control critical for analog sensing; versus MMSZ4685T1G, it trades power headroom for board space savings and automotive compliance-making it optimal for compact, mission-critical embedded systems.
Availability
BZX884-B3V9,315 is available at Aetrix Electronics and suitable for USB interface protection, automotive sensor reference, portable medical monitor power rails, and industrial PLC input conditioning requiring stable component supply across high-mix production runs.
Supply support for BZX884-B3V9,315 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 delivering high-performance logic, discrete, and MOSFET solutions with emphasis on efficiency, reliability, and miniaturization.
The BZX884 series belongs to Nexperia's precision Zener diode product line, engineered for space-constrained voltage regulation and ESD protection in automotive, industrial, and portable electronics.
FAQ
What is the maximum reverse current at 3.9 V for BZX884-B3V9,315?
The maximum reverse current (IR) is 3 µA at VR = 3.9 V and Tj = 25 °C, measured per Table 7 of the datasheet. This low leakage supports extended battery life in always-on applications and minimizes error in high-impedance reference circuits.
Is BZX884-B3V9,315 suitable for automotive applications?
Yes-it is AEC-Q101 qualified, tested for temperature cycling, humidity, mechanical shock, and high-temperature operating life per automotive stress standards. It is deployed in engine control modules, ADAS sensors, and infotainment power domains.
How does the SOD882 package affect thermal performance?
The SOD882 package has a junction-to-ambient thermal resistance (Rth(j-a)) of 500 K/W under standard FR4 mounting. This requires careful PCB layout-using thermal vias and copper pours-to sustain 250 mW dissipation without exceeding 150 °C junction temperature.
Can BZX884-B3V9,315 replace a 3.3 V Zener in existing designs?
No-its nominal Zener voltage is 3.9 V (3.82–3.98 V), not 3.3 V. Substituting it for a 3.3 V part would raise clamping voltage by ~600 mV, risking overvoltage damage to downstream 3.3 V ICs. Use BZX884-B3V3,315 for true 3.3 V regulation.
BZX884-B3V9,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.9 V
- Tolerance:
- ±2%
- Power - Max:
- 250 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:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2
BZX884-B3V9,315 FAQ
1.How can I place an order for BZX884-B3V9,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884-B3V9,315 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 BZX884-B3V9,315 reliable?
The price and inventory of BZX884-B3V9,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884-B3V9,315 is usually 5 days.
3.What payment methods are accepted for BZX884-B3V9,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884-B3V9,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884-B3V9,315?
BZX884-B3V9,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884-B3V9,315 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 BZX884-B3V9,315?
For technical support, including BZX884-B3V9,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884-B3V9,315 requirements.
6.How does Aetrix verify that BZX884-B3V9,315 is sourced from the original manufacturer or authorized distributors?
All BZX884-B3V9,315 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 BZX884-B3V9,315 meets industry standards.
7.What is the process for return or replacement of BZX884-B3V9,315?
All BZX884-B3V9,315 units undergo pre-shipment inspection (PSI). If there is an issue with BZX884-B3V9,315, 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 BZX884-B3V9,315 part is unused and in its original packaging.
Return procedure for BZX884-B3V9,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884-B3V9,315 Tags
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BZT52C5V6T-7
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MM5Z5V1ST1G
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