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Nexperia USA Inc. BZX884-B43,315
- Part No.:
- BZX884-B43,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884-B43,315.pdf
- Description:
- DIODE ZENER 43V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:2,913
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Product details
Overview
BZX884-B43,315 from Nexperia is a ±2% tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 43 V nominal Zener voltage at 5 mA, 250 mW total power dissipation, and 85 Ω typical differential resistance at IZ = 5 mA. It serves as a precision voltage reference or clamp in low-power analog signal conditioning and ESD protection circuits.
For engineers reviewing the BZX884-B43,315 datasheet, BZX884-B43,315 pinout, BZX884-B43,315 application, or BZX884-B43,315 equivalent, this page delivers verified electrical specs, thermal behavior, AEC-Q101 qualification status, and surface-mount layout guidance for high-frequency regulation and ultra-fast ESD clamping.
Technical Context
This Zener diode operates in reverse breakdown with a temperature coefficient of +41.2 mV/K at IZ = 2 mA, enabling stable voltage reference over temperature when used with appropriate biasing. Its 40 pF capacitance at 1 MHz and 0 V reverse bias supports high-frequency decoupling and transient suppression up to ~100 MHz.
Designed for leadless SMD assembly, it features a 1.0 × 0.6 × 0.5 mm body with cathode marked by a bar on the top surface. The device sustains non-repetitive peak reverse current up to 0.6 A for 100 µs pulses and exhibits 500 K/W junction-to-ambient thermal resistance on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 42.14 V to 43.86 V at IZ = 2 mA - defines tight regulation window for precision biasing |
| Differential Resistance (rdiff) | 85 Ω max at IZ = 2 mA - ensures minimal output impedance shift under load variation |
| Reverse Current (IR) | 50 nA max at VR = 0.7 × VZnom - guarantees low leakage in standby mode |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - enables predictable forward conduction for bidirectional clamping |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC or pulsed power handling on standard PCB |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in automotive under-hood and industrial control environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
SOD882 (DFN1006-2) is a leadless, ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.5 mm, with exposed copper terminals on the bottom and a marking bar indicating cathode polarity on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-biased during Zener operation; marked by bar on top surface |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter regulation than ±5% variants, reducing need for post-calibration in reference circuits |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Ultra-small DFN1006-2 footprint | Reduces PCB area by >60% vs. SOD-123, supporting miniaturized portable and wearable designs |
| ESD ultra-high-speed switching | Sub-nanosecond response enables clamping of fast transients (e.g., IEC 61000-4-2 Level 4) |
| Low 40 pF junction capacitance | Minimizes signal distortion in RF bias networks and high-speed data line protection |
Applications
| Automotive Sensor Biasing | USB Port ESD Protection |
|---|---|
|
Use Scenario: Providing stable 43 V reference for Hall-effect position sensor supply in transmission control modules. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage regulator, maintaining constant bias despite battery voltage fluctuations between 9–16 V. Use Value: Enables accurate sensor output scaling without external LDO; AEC-Q101 rating ensures reliability across −40 °C to +125 °C ambient. |
Use Scenario: Clamping transient voltages on USB VBUS line during hot-plug events and electrostatic discharge. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor operating in reverse breakdown during surge, forward-conducting during negative spikes. Use Value: 0.6 A non-repetitive peak current capability and 40 pF capacitance preserve USB 2.0 signal integrity while meeting IEC 61000-4-2 Level 4. |
| Industrial PLC Analog Input Protection | High-Frequency Oscillator Bias Network |
|
Use Scenario: Protecting 24 V analog input channels in programmable logic controllers against field-wiring faults and induced surges. IC Role / Device Role / Timing Role: Shunt limiter placed before instrumentation amplifier input to clamp overvoltage before damage occurs. Use Value: 250 mW power rating allows sustained clamping of 24 V channel overloads; low leakage (<50 nA) prevents measurement drift. |
Use Scenario: Stabilizing bias point of Colpitts oscillator transistor base in 100 MHz RF transmitter front-end. IC Role / Device Role / Timing Role: Low-capacitance Zener provides DC reference while minimally loading resonant tank circuit. Use Value: 40 pF capacitance avoids detuning of 100 MHz LC tank; ±2% tolerance ensures repeatable oscillation frequency across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884-C43,315 | ±5% tolerance (40.85–45.15 V), higher rdiff (≤150 Ω), same package and Ptot | Acceptable where 43 V ±5% meets system margin; less stable under varying current | Select for cost-sensitive industrial controls where tighter regulation is not required |
| MMSZ43ET1G | ±5% tolerance, SOD-123 package (2.7 × 1.6 × 1.1 mm), 500 mW Ptot, 100 Ω rdiff | Larger footprint but higher power handling; not AEC-Q101 qualified | Choose when board space permits and automotive qualification is unnecessary |
Compared with BZX884-C43,315, the BZX884-B43,315 offers tighter voltage control and lower dynamic impedance for precision references; versus MMSZ43ET1G, it trades power capacity for automotive compliance and miniaturization-critical for space-constrained, safety-rated systems.
Availability
BZX884-B43,315 is available at Aetrix Electronics and suitable for automotive sensor biasing, USB port ESD protection, and industrial PLC analog input protection requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for BZX884-B43,315 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZX884 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for compact, high-frequency voltage regulation and ultra-fast ESD protection in automotive and industrial surface-mount applications.
FAQ
What is the maximum non-repetitive peak reverse current for BZX884-B43,315?
The device supports up to 0.6 A non-repetitive peak reverse current for pulse durations of 100 µs at Tamb = 25 °C, as specified in Table 5 of the datasheet. This rating enables effective clamping of short-duration transients such as ESD events without permanent degradation.
Is BZX884-B43,315 suitable for use in automotive powertrain applications?
Yes-it is AEC-Q101 qualified and rated for junction temperatures up to +150 °C, making it suitable for under-hood applications like engine control unit sensor biasing and transmission position sensing where thermal stability and long-term reliability are critical.
How does the 40 pF junction capacitance affect high-frequency performance?
At 1 MHz and 0 V reverse bias, the 40 pF capacitance minimally loads RF circuits-preserving signal integrity in oscillator bias networks and high-speed data line protection. It avoids resonance shifts in 100 MHz+ applications while maintaining effective clamping bandwidth.
Can BZX884-B43,315 be used in bidirectional ESD protection configurations?
Yes-its forward voltage is 0.9 V max at 10 mA, allowing it to conduct negative transients in series-anode/cathode arrangements. Combined with its 0.6 A peak reverse current rating, it functions as a compact bidirectional TVS element in space-limited USB or HDMI interface protection.
BZX884-B43,315 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):
- 43 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 30.1 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-B43,315 FAQ
1.How can I place an order for BZX884-B43,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884-B43,315 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-B43,315 reliable?
The price and inventory of BZX884-B43,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884-B43,315 is usually 5 days.
3.What payment methods are accepted for BZX884-B43,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884-B43,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884-B43,315?
BZX884-B43,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884-B43,315 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-B43,315?
For technical support, including BZX884-B43,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884-B43,315 requirements.
6.How does Aetrix verify that BZX884-B43,315 is sourced from the original manufacturer or authorized distributors?
All BZX884-B43,315 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-B43,315 meets industry standards.
7.What is the process for return or replacement of BZX884-B43,315?
All BZX884-B43,315 units undergo pre-shipment inspection (PSI). If there is an issue with BZX884-B43,315, 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-B43,315 part is unused and in its original packaging.
Return procedure for BZX884-B43,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884-B43,315 Tags
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