My Inquiry
My Account
Nexperia USA Inc. BZX8850-B51YL
- Part No.:
- BZX8850-B51YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-B51YL.pdf
- Description:
- DIODE ZENER 51V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:4,239
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX8850-B51YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 51 V nominal with ±2 % tolerance. It delivers stable reference voltage at 50 μA test current, features 400 Ω differential resistance at 2 mA, and operates with ≤250 mW total power dissipation. Used in battery-powered sensor signal conditioning circuits requiring minimal quiescent current.
For engineers reviewing the BZX8850-B51YL datasheet, BZX8850-B51YL pinout, BZX8850-B51YL application, or BZX8850-B51YL equivalent, this page provides verified Zener voltage, thermal resistance, reverse leakage, capacitance, and package footprint data essential for low-power analog reference design and PCB layout validation.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 51 V at IZ = 2 mA, exhibiting a temperature coefficient of +0.05 mV/K and diode capacitance of 40 pF at f = 1 MHz and VR = 0 V. Its low 50 μA test current enables operation in ultra-low-bias circuits where supply current is constrained.
The device uses silicon planar technology in a leadless DFN1006-2 package with cathode marked by a bar on the top surface. Thermal resistance from junction to ambient is 500 K/W under standard FR4 PCB mounting conditions, limiting continuous power handling to 250 mW at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 50.0 V to 52.0 V at IZ = 2 mA - defines precise regulation point for 51 V nominal reference |
| Tolerance | ±2 % - ensures tight voltage matching across production lots for calibration-critical applications |
| Differential Resistance rdiff | 400 Ω max at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Reverse Current IR | 0.05 µA max at VR = 38.3 V - guarantees minimal standby power loss in high-impedance bias networks |
| Diode Capacitance Cd | 40 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise rejection and transient response in filtering stages |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power limit under standard PCB mounting |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - defines conduction threshold when used in series protection or polarity detection |
Pinout & Package
Package: SOD882 (DFN1006-2), leadless ultra-small plastic package; dimensions 1.0 × 0.6 × 0.5 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker aligns with PCB silkscreen bar for automated optical inspection |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 μA - enables use in microamp-level bias networks without compromising regulation accuracy |
| Ultra-small footprint | SOD882 (1.0 × 0.6 mm) - saves board space in compact wearables and IoT sensor nodes |
| Controlled temperature coefficient | +0.05 mV/K - minimizes drift over industrial temperature range (−55 °C to +150 °C) |
| Optimized leakage profile | Intentional minor rise per AN90031 - improves switching speed and reduces broadband noise in reference paths |
Applications
| Portable Battery Monitor | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in wearable health trackers with coin-cell backup. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and overvoltage clamp. Use Value: 50 μA test current extends battery life beyond 2 years; ±2 % tolerance ensures <10 mV absolute error at 51 V full-scale. |
Use Scenario: Providing stable 51 V reference for 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Precision shunt regulator establishing excitation voltage for bridge sensors. Use Value: 400 Ω dynamic impedance maintains <0.1 % line regulation across 1–5 mA load variation; 40 pF capacitance avoids phase shift in 10 kHz signal bandwidth. |
| Low-Power MCU Reset Circuit | ESD-Sensitive Analog Front-End Protection |
Use Scenario: Generating clean reset threshold for ultra-low-power microcontrollers in smart meters. IC Role / Device Role / Timing Role: Voltage supervisor element in RC-based reset generator. Use Value: 0.05 µA leakage at 38.3 V prevents capacitor discharge during long sleep cycles; SOD882 footprint fits within 2 mm² PCB area budget. |
Use Scenario: Clamping transient spikes on analog inputs of medical-grade ECG amplifiers. IC Role / Device Role / Timing Role: Low-capacitance shunt protector preserving signal integrity up to 100 kHz. Use Value: 40 pF capacitance avoids gain roll-off below 1 MHz; 250 mW rating handles IEC 61000-4-2 contact discharge events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5257B | 51 V ±5 % tolerance; 170 Ω rdiff at 20 mA; SOT-23 package (2.9 × 1.3 mm) | Higher test current (20 mA) increases power draw; larger footprint limits high-density layouts | Select when lower dynamic impedance is prioritized over quiescent current and size |
| Vishay BZX84-C51 | 51 V ±5 % tolerance; 150 Ω rdiff at 5 mA; SOT-23 package; 100 nA leakage at 38.3 V | Lower leakage improves long-term stability but lacks intentional fast-switching optimization | Select for ultra-low-leakage legacy designs where AN90031 noise reduction is not required |
Compared with MMBZ5257B and BZX84-C51, BZX8850-B51YL uniquely combines ±2 % tolerance, 50 μA test current, and SOD882 packaging-enabling higher accuracy, lower power, and smaller area in next-generation portable instrumentation.
Availability
BZX8850-B51YL is available at Aetrix Electronics and suitable for portable battery monitors, industrial sensor signal conditioning, low-power MCU reset circuits, and ESD-sensitive analog front-end protection requiring stable component supply and consistent parametric performance.
Supply support for BZX8850-B51YL 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 devices with focus on efficiency, reliability, and miniaturization for consumer, industrial, and automotive markets.
The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-constrained and space-limited applications demanding tight voltage tolerance and ultra-low bias current operation.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850-B51YL?
The BZX8850-B51YL exhibits a nominal Zener voltage of 51 V at IZ = 2 mA, with guaranteed minimum and maximum values of 50.0 V and 52.0 V respectively. Breakdown occurs sharply within this band; operation above 52.0 V risks exceeding the non-repetitive peak reverse power limit of 40 W for 100 µs pulses.
Can BZX8850-B51YL be used in series with other Zeners for higher reference voltages?
No-BZX8850-B51YL is not characterized or rated for series connection. Its specified parameters assume single-device operation. Series stacking introduces mismatched temperature coefficients and leakage currents that degrade accuracy and thermal stability; dedicated high-voltage references should be used instead.
Is the SOD882 package compatible with standard reflow soldering profiles?
Yes-the DFN1006-2 (SOD882) package is qualified for lead-free reflow per J-STD-020. Recommended profile includes peak temperature ≤260 °C, time above liquidus 60–90 seconds, and ramp rates within ±3 °C/s. Figure 10 in the datasheet provides the exact solder land pattern (0.6 mm pad length, 0.3 mm width).
Does BZX8850-B51YL meet automotive AEC-Q200 requirements?
No-BZX8850-B51YL is not AEC-Q200 qualified. The datasheet explicitly states "Non-automotive qualified products" and prohibits use in safety-critical or automotive applications. For automotive-grade Zeners, consult Nexperia's Automotive Qualified Zener portfolio (e.g., BZX8850-Axxx series).
BZX8850-B51YL 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):
- 51 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 180 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 35.7 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-B51YL FAQ
1.How can I place an order for BZX8850-B51YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-B51YL 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-B51YL reliable?
The price and inventory of BZX8850-B51YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-B51YL is usually 5 days.
3.What payment methods are accepted for BZX8850-B51YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-B51YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-B51YL?
BZX8850-B51YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-B51YL 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-B51YL?
For technical support, including BZX8850-B51YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-B51YL requirements.
6.How does Aetrix verify that BZX8850-B51YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-B51YL 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-B51YL meets industry standards.
7.What is the process for return or replacement of BZX8850-B51YL?
All BZX8850-B51YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-B51YL, 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-B51YL part is unused and in its original packaging.
Return procedure for BZX8850-B51YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-B51YL 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…
