My Inquiry
My Account
Nexperia USA Inc. BZX8850-B47YL
- Part No.:
- BZX8850-B47YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-B47YL.pdf
- Description:
- DIODE ZENER 47V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:7,476
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX8850-B47YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 47 V nominal with ±2 % tolerance. It delivers stable reference voltage at 50 µA test current, exhibits 375 Ω differential resistance at 2 mA, and features 0.05 µA reverse leakage at rated voltage-ideal for battery-powered sensor biasing and low-power analog signal conditioning.
For engineers reviewing the BZX8850-B47YL datasheet, BZX8850-B47YL pinout, BZX8850-B47YL application, or BZX8850-B47YL equivalent, this device serves as a compact, thermally efficient voltage reference where ultra-low quiescent current, tight Zener voltage tolerance, and minimal capacitance (40 pF at 0 V) are critical selection criteria.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 47 V, specified at IZ = 50 µA per JEDEC standards. Its temperature coefficient is +42.0 mV/K, indicating positive drift over temperature, and its differential resistance remains stable at ≤375 Ω up to 2 mA test current.
The device uses silicon planar technology in a leadless DFN1006-2 package with cathode-marked top-side orientation. Thermal resistance from junction-to-ambient is 500 K/W on FR4 PCB, supporting operation from −55 °C to +150 °C ambient with 250 mW total power dissipation limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 46.1 V to 47.9 V at IZ = 50 µA - ensures precise 47 V reference under low-bias conditions |
| Tolerance | ±2 % - enables high-accuracy voltage clamping without post-calibration |
| Differential Resistance rdiff | ≤375 Ω at IZ = 2 mA - maintains regulation stability across small load variations |
| Reverse Leakage IR | ≤0.05 µA at VR = 40 V - minimizes standby current in always-on circuits |
| Capacitance Cd | 40 pF at f = 1 MHz, VR = 0 V - preserves high-frequency signal integrity in filtering applications |
| Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - supports continuous operation in space-constrained PCB layouts |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA - allows safe forward conduction during transient polarity reversal |
Pinout & Package
SOD882 (DFN1006-2) is a 2-terminal, leadless surface-mount plastic package measuring 1.0 mm × 0.6 mm × 0.5 mm, with cathode indicated by a marking bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal for Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; defines polarity for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | Rated at 50 µA - enables use in microamp-level bias networks without loading error |
| Ultra-small footprint | DFN1006-2 (1.0 × 0.6 mm) - saves board area in wearables and IoT edge nodes |
| Controlled temperature coefficient | +42.0 mV/K - predictable drift behavior simplifies thermal compensation in reference designs |
| Optimized leakage profile | Intentional minor leakage rise per AN90031 - improves switching speed and reduces noise in dynamic regulation |
| Robust thermal rating | Junction temperature up to 150 °C - supports operation in industrial ambient environments |
Applications
| Portable Sensor Biasing | Low-Power ADC Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to MEMS pressure sensors in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed 47 V bias for sensor bridge circuitry. Use Value: Enables <1 µA total bias current draw while maintaining ±0.5 % full-scale accuracy over −25 °C to +70 °C. |
Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in handheld multimeters with coin-cell power. IC Role / Device Role / Timing Role: Precision shunt reference generating clean 47 V reference for ratio-metric conversion. Use Value: Delivers 40 pF capacitance and <0.05 µA leakage-minimizing reference settling time and quantization noise. |
| Overvoltage Clamp Protection | Low-Current Power Rail Stabilization |
Use Scenario: Clamping transient surges on 48 V telecom backup lines in remote base station controllers. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting voltage excursion to 47.9 V maximum. Use Value: Withstands non-repetitive 40 W peak power (100 µs pulse) and maintains <375 Ω dynamic impedance during clamp event. |
Use Scenario: Stabilizing auxiliary 47 V rail for op-amp biasing in isolated industrial signal isolators. IC Role / Device Role / Timing Role: Low-drift Zener regulator compensating for input ripple in unregulated DC-DC outputs. Use Value: Achieves ±2 % regulation accuracy with +42.0 mV/K TC-reducing calibration burden in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850-C47 | ±5 % tolerance, higher leakage (0.05 µA vs. same), identical package and VZ range | Acceptable where cost sensitivity outweighs precision requirement | Select when ±5 % regulation accuracy suffices and tighter tolerance adds no system benefit |
| MMSZ47ET1G | Same 47 V nominal, SOD-123 package (2.7 × 1.6 mm), 500 mW Ptot, ±5 % tolerance | Requires larger PCB area but supports higher continuous power | Choose when thermal margin >250 mW is needed and board space permits larger footprint |
Compared with BZX8850-B47YL, the BZX8850-C47 trades precision for cost in identical form factor, while MMSZ47ET1G offers higher power handling at the expense of size and tolerance-making the BZX8850-B47YL optimal for miniaturized, accuracy-critical 47 V reference designs.
Availability
BZX8850-B47YL is available at Aetrix Electronics and suitable for portable sensor biasing, low-power ADC reference, and overvoltage clamp protection requiring stable component supply across high-mix, low-volume production runs.
Supply support for BZX8850-B47YL 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, headquartered in Nijmegen, Netherlands.
The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for ultra-compact, low-quiescent-power voltage regulation in battery-constrained and space-limited applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850-B47YL?
The BZX8850-B47YL begins controlled Zener breakdown at a minimum of 46.1 V and reaches its upper limit at 47.9 V when tested at 50 µA. It is not rated for sustained operation above 47.9 V in reverse bias-exceeding this risks irreversible avalanche degradation or thermal runaway.
Can BZX8850-B47YL be used in forward conduction mode?
Yes-it functions as a standard silicon diode in forward bias with VF ≤ 0.9 V at 10 mA. However, its primary design purpose is reverse-biased Zener regulation; forward use is limited to transient polarity protection or basic rectification in ultra-low-current paths (<200 mA).
How does the ±2 % tolerance affect long-term stability in precision references?
The ±2 % initial tolerance is guaranteed at 25 °C and 50 µA; long-term stability depends on operating temperature, power derating, and PCB thermal design. At 70 °C ambient with 100 mW dissipation, typical drift remains within ±0.3 % over 10 years per Nexperia reliability data-no additional aging derating required for most industrial deployments.
Is reflow soldering compatible with the SOD882 package of BZX8850-B47YL?
Yes-the DFN1006-2 package is qualified for standard lead-free reflow profiles (J-STD-020). Recommended peak temperature is 260 °C for ≤30 seconds, with preheat ramp rate ≤3 °C/s. Figure 10 in the datasheet provides the exact solder land pattern (0.6 mm pad length, 0.3 mm width, 0.7 mm center-to-center pitch).
BZX8850-B47YL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8850
- 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:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2
BZX8850-B47YL FAQ
1.How can I place an order for BZX8850-B47YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-B47YL 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 BZX8850-B47YL reliable?
The price and inventory of BZX8850-B47YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-B47YL is usually 5 days.
3.What payment methods are accepted for BZX8850-B47YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-B47YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-B47YL?
BZX8850-B47YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-B47YL 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 BZX8850-B47YL?
For technical support, including BZX8850-B47YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-B47YL requirements.
6.How does Aetrix verify that BZX8850-B47YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-B47YL 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 BZX8850-B47YL meets industry standards.
7.What is the process for return or replacement of BZX8850-B47YL?
All BZX8850-B47YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-B47YL, 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 BZX8850-B47YL part is unused and in its original packaging.
Return procedure for BZX8850-B47YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-B47YL Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
