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Nexperia USA Inc. BZX884-B12,315
- Part No.:
- BZX884-B12,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884-B12,315.pdf
- Description:
- DIODE ZENER 12V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:92,018
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Product details
Overview
BZX884-B12,315 from Nexperia is a ±2 % tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 12 V nominal regulation at 5 mA, with 250 mW total power dissipation and 100 nA reverse leakage at 8 V. It delivers stable voltage reference and overvoltage clamping in space-constrained automotive and industrial PCBs.
For engineers reviewing the BZX884-B12,315 datasheet, BZX884-B12,315 pinout, BZX884-B12,315 application, or BZX884-B12,315 equivalent, this page provides verified Zener voltage, thermal resistance, differential resistance, temperature coefficient, and AEC-Q101 qualification status - all confirmed from Nexperia's Rev. 5 product data sheet.
Technical Context
This Zener diode operates in reverse breakdown to maintain precise DC voltage regulation under varying load and temperature conditions. Its 12 V nominal Zener voltage is specified at IZ = 5 mA with ±2 % tolerance, and exhibits a positive temperature coefficient of +7.9 mV/K at that test current.
The device uses silicon planar epitaxial construction in a leadless DFN1006-2 package, enabling ultra-small footprint (1.0 × 0.6 × 0.5 mm) and high-frequency ESD protection response. Thermal resistance from junction to ambient is 500 K/W on FR4 PCB with standard footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.76 V to 12.24 V at IZ = 5 mA - defines tight regulation window for precision biasing |
| Differential Resistance (rdiff) | 25 Ω to 150 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | +7.9 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Reverse Leakage (IR) | 100 nA at VR = 8 V - ensures minimal quiescent current in standby regulation circuits |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - defines conduction threshold when used in series polarity configurations |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in extended-temperature automotive and industrial environments |
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 and cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| ±2 % Zener voltage tolerance | Enables tighter system-level voltage margin control versus ±5 % variants in critical references |
| Ultra-small DFN1006-2 footprint | Reduces board area by >60 % vs. SOD-123 while maintaining thermal performance via copper pad exposure |
| 250 mW power rating | Supports sustained regulation in low-power sensor interfaces and microcontroller reset circuits |
| 100 nA reverse leakage at 8 V | Minimizes standby current in battery-backed systems and low-power IoT nodes |
Applications
| Automotive Sensor Biasing | Industrial PLC Input Protection |
|---|---|
Use Scenario: Providing stable 12 V reference for analog front-end circuitry in engine control unit (ECU) temperature sensors. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp protecting op-amp inputs from transients. Use Value: Maintains signal integrity across −40 °C to +125 °C ambient with <±0.1 % drift due to AEC-Q101 thermal validation. |
Use Scenario: Clamping induced surges on 24 V digital input channels of programmable logic controllers. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting ESD and inductive kickback energy to ground. Use Value: Responds within nanoseconds to 8 kV HBM events while sustaining 2.5 A non-repetitive peak reverse current. |
| Medical Wearable Power Monitoring | Consumer IoT Battery Voltage Sensing |
Use Scenario: Regulating supply to ADC reference buffer in portable ECG monitor with Li-ion battery input. IC Role / Device Role / Timing Role: Precision voltage reference source with low temperature coefficient for accurate battery SOC estimation. Use Value: Delivers <±1.5 mV total error over full temperature range due to +7.9 mV/K coefficient and tight ±2 % tolerance. |
Use Scenario: Scaling down 3.7–4.2 V battery voltage to 1.2 V for MCU ADC measurement in Bluetooth tracker. IC Role / Device Role / Timing Role: Low-leakage Zener divider element enabling <1 µA quiescent current in always-on mode. Use Value: Achieves 100 nA reverse leakage at 8 V, reducing system sleep current by >30 % versus legacy DO-35 devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884-C12,315 | ±5 % tolerance (11.4–12.6 V), higher rdiff (25–150 Ω), same package and Ptot | Acceptable where cost-sensitive designs tolerate wider voltage spread and looser regulation | Select for non-critical biasing where ±2 % is not required and BOM cost reduction is prioritized |
| MMSZ5242B-7-F | ±5 % tolerance, SOD-123 package (2.7 × 1.4 × 1.0 mm), 500 mW rating, VF = 0.9 V @ 10 mA | Higher power handling but 3.5× larger footprint; lacks AEC-Q101 qualification | Choose only for non-automotive applications requiring >250 mW dissipation and no space constraint |
Compared with BZX884-C12,315, the BZX884-B12,315 offers tighter voltage control essential for precision analog circuits; versus MMSZ5242B-7-F, it trades power headroom for automotive qualification and 60 % smaller PCB area - critical for modern compact modules.
Availability
BZX884-B12,315 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial PLC input protection, medical wearable power monitoring, and consumer IoT battery voltage sensing requiring stable component supply across extended temperature ranges.
Supply support for BZX884-B12,315 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 advanced packaging.
The BZX884 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for space-constrained, high-reliability voltage regulation and ESD protection in automotive and industrial applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX884-B12,315?
The BZX884-B12,315 has a nominal Zener voltage of 12 V, with guaranteed breakdown occurring between 11.76 V and 12.24 V at 5 mA test current. Below 11.4 V, reverse leakage remains ≤100 nA - no avalanche conduction occurs. This defined knee ensures predictable clamping behavior in protection circuits.
Can BZX884-B12,315 be used in parallel for higher power dissipation?
No - Zener diodes must not be paralleled due to mismatched breakdown voltages causing current hogging. The BZX884-B12,315 is rated for 250 mW on FR4 with standard footprint; for higher power, select a single higher-rated device like PZM12NB or use active regulation instead.
Is the SOD882 package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method. The SOD882 footprint (0.7 mm pad length, 0.3 mm pad width, 0.6 mm center-to-center pitch) complies with IPC-7351B and supports JEDEC J-STD-020D moisture sensitivity level 1, with peak temperature up to 260 °C.
How does the +7.9 mV/K temperature coefficient affect long-term stability?
The +7.9 mV/K coefficient means voltage increases ~95 mV over a 12 °C junction rise. In a 12 V reference, this yields ~0.8 % drift - acceptable for most non-precision applications. For improved stability, pair with a negative-TC component or operate near 25 °C ambient using thermal design controls.
BZX884-B12,315 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):
- 12 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-B12,315 FAQ
1.How can I place an order for BZX884-B12,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884-B12,315 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-B12,315 reliable?
The price and inventory of BZX884-B12,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884-B12,315 is usually 5 days.
3.What payment methods are accepted for BZX884-B12,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884-B12,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884-B12,315?
BZX884-B12,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884-B12,315 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-B12,315?
For technical support, including BZX884-B12,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884-B12,315 requirements.
6.How does Aetrix verify that BZX884-B12,315 is sourced from the original manufacturer or authorized distributors?
All BZX884-B12,315 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-B12,315 meets industry standards.
7.What is the process for return or replacement of BZX884-B12,315?
All BZX884-B12,315 units undergo pre-shipment inspection (PSI). If there is an issue with BZX884-B12,315, 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-B12,315 part is unused and in its original packaging.
Return procedure for BZX884-B12,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884-B12,315 Tags
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