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Nexperia USA Inc. BZX884-B47,315
- Part No.:
- BZX884-B47,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884-B47,315.pdf
- Description:
- DIODE ZENER 47V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:9,482
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Product details
Overview
BZX884-B47,315 from Nexperia is a ±2% tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 47 V nominal regulation at 5 mA, with 250 mW total power dissipation and 50 Ω typical differential resistance at IZ = 5 mA. It delivers stable voltage reference and overvoltage clamping in space-constrained automotive and industrial power rails.
For engineers reviewing the BZX884-B47,315 datasheet, BZX884-B47,315 pinout, BZX884-B47,315 application, or BZX884-B47,315 equivalent, this page provides verified Zener voltage, thermal resistance, reverse leakage, capacitance, 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 across load and line variations. Its 47 V nominal Zener voltage is specified at IZ = 5 mA with ±2% tolerance, and exhibits a positive temperature coefficient of +46.1 mV/K at that test current.
The device features low 40 pF junction capacitance at 0 V (f = 1 MHz), enabling effective high-frequency noise suppression and ESD transient clamping. Its 500 K/W junction-to-ambient thermal resistance reflects performance on standard FR4 PCB with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 46.06 V to 47.94 V at IZ = 5 mA - defines tight regulation window for precision reference use |
| Differential Resistance (rdiff) | 85 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage Current (IR) | 50 nA max at VR = 0.7 × VZnom - ensures minimal standby power loss in high-impedance bias networks |
| Junction Capacitance (Cd) | 40 pF max at f = 1 MHz, VR = 0 V - supports ESD/RF filtering up to ~100 MHz |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 - sets maximum continuous clamping energy in compact layouts |
| Thermal Resistance (Rth(j-a)) | 500 K/W - dictates derating curve for operation above 25 °C ambient |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SOD882 (DFN1006-2) is a leadless ultra-small surface-mount plastic package measuring 1.0 mm × 0.6 mm × 0.5 mm, with exposed cathode marking bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter regulation than ±5% variants, reducing need for post-regulation trimming in precision analog circuits |
| AEC-Q101 qualification | Validates suitability for under-hood automotive modules requiring extended temperature operation (−55 °C to +150 °C) |
| 250 mW power rating in 1.0 × 0.6 mm footprint | Provides higher clamping energy density than larger-package Zeners, supporting miniaturized ESD protection designs |
| 40 pF junction capacitance | Minimizes signal distortion in high-speed data lines while maintaining effective RF suppression |
| Low 50 nA leakage at 32.9 V | Reduces quiescent current in battery-powered sensor biasing and reference divider networks |
Applications
| Automotive Power Rail Clamping | Industrial Sensor Reference Supply |
|---|---|
Use Scenario: Protecting 48 V battery management system (BMS) monitoring ICs from load-dump transients. IC Role / Device Role / Timing Role: Zener clamping element placed between monitored rail and ground to clamp spikes above 47 V. Use Value: Limits voltage excursion to within 47.94 V (max VZ) while dissipating <250 mW, preventing damage to downstream ADC inputs. |
Use Scenario: Providing stable 47 V reference for isolated current-sense amplifier bias in motor drive inverters. IC Role / Device Role / Timing Role: Precision shunt reference establishing fixed headroom for op-amp supply rails. Use Value: ±2% tolerance ensures reference stability across temperature, minimizing gain drift in closed-loop current control. |
| ESD Protection for CAN FD Transceivers | High-Frequency RF Filter in 5G Front-End |
Use Scenario: Secondary clamping stage on CAN_H/CAN_L lines downstream of TVS diodes in automotive ADAS ECUs. IC Role / Device Role / Timing Role: Ultra-fast Zener clamp absorbing residual ESD energy after primary TVS conduction. Use Value: 40 pF capacitance avoids signal integrity degradation on 5 Mbps CAN FD bus while clamping to 47.94 V. |
Use Scenario: Bias network stabilization in GaN PA driver stages operating at 3.5 GHz. IC Role / Device Role / Timing Role: DC bias point setter with minimal parasitic capacitance to avoid resonance shifts. Use Value: Low 40 pF Cd prevents detuning of matching networks, and 50 Ω rdiff ensures predictable impedance interaction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884-C47,315 | ±5% tolerance (44.65–49.35 V), higher max leakage (100 nA), same package and Ptot | Acceptable where cost sensitivity outweighs regulation precision; less suitable for high-accuracy references | Select when budget constraints dominate and 47 V ±5% meets system margin requirements. |
| MMSZ47ET1G | ±5% tolerance, SOD-123 package (2.7 × 1.6 mm), 500 mW Ptot, 100 pF Cd | Higher power handling but larger footprint and higher capacitance - unsuitable for high-speed or space-critical layouts | Choose only if board area allows larger package and higher clamping energy is required beyond 250 mW. |
Compared with BZX884-C47,315, the BZX884-B47,315 offers tighter voltage control critical for reference accuracy; versus MMSZ47ET1G, it trades power capacity for 63% smaller footprint and 60% lower capacitance - essential for high-density, high-frequency designs.
Availability
BZX884-B47,315 is available at Aetrix Electronics and suitable for automotive power rail clamping, industrial sensor reference supplies, ESD protection for CAN FD transceivers, and high-frequency RF filter applications requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX884-B47,315 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 regulation and clamping in automotive, industrial, and communications systems demanding AEC-Q101 reliability.
FAQ
What is the maximum reverse voltage before breakdown for BZX884-B47,315?
The BZX884-B47,315 has a nominal Zener voltage of 47 V, with guaranteed minimum and maximum values of 46.06 V and 47.94 V respectively at IZ = 5 mA. Breakdown begins near the lower limit, and full regulation occurs across this band. It is not rated for sustained operation above 47.94 V in reverse bias.
Can BZX884-B47,315 be used in place of a 47 V Zener with ±5% tolerance?
Yes, but only where tighter voltage control improves system performance - e.g., in precision reference dividers or low-margin overvoltage detection. Its ±2% tolerance (vs. ±5% for 'C' grade) reduces worst-case variation by 3%, enabling more aggressive design margins without sacrificing reliability.
Is the SOD882 package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method for SOD882. The package is qualified for JEDEC J-STD-020 moisture sensitivity level 1 and supports peak temperatures up to 260 °C, provided the footprint matches Figure 12 (0.7 mm pad length, 0.3 mm pad width, 0.6 mm center-to-center pitch).
How does temperature affect the Zener voltage of BZX884-B47,315?
At IZ = 5 mA, BZX884-B47,315 exhibits a +46.1 mV/K temperature coefficient - meaning its Zener voltage increases by approximately 46.1 mV per degree Celsius rise in junction temperature. This positive drift must be accounted for in wide-temperature-range reference designs.
BZX884-B47,315 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):
- 47 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 32.9 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-B47,315 FAQ
1.How can I place an order for BZX884-B47,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884-B47,315 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-B47,315 reliable?
The price and inventory of BZX884-B47,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884-B47,315 is usually 5 days.
3.What payment methods are accepted for BZX884-B47,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884-B47,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884-B47,315?
BZX884-B47,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884-B47,315 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-B47,315?
For technical support, including BZX884-B47,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884-B47,315 requirements.
6.How does Aetrix verify that BZX884-B47,315 is sourced from the original manufacturer or authorized distributors?
All BZX884-B47,315 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-B47,315 meets industry standards.
7.What is the process for return or replacement of BZX884-B47,315?
All BZX884-B47,315 units undergo pre-shipment inspection (PSI). If there is an issue with BZX884-B47,315, 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-B47,315 part is unused and in its original packaging.
Return procedure for BZX884-B47,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884-B47,315 Tags
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