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Nexperia USA Inc. BZX8850S-B2V4-QYL
- Part No.:
- BZX8850S-B2V4-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B2V4-QYL.pdf
- Description:
- DIODE ZENER 2.4V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:8,539
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Product details
Overview
BZX8850S-B2V4-QYL from Nexperia is a low-current Zener voltage regulator diode in an ultra-small DFN1006BD-2 (SOD882BD) package, designed for precision biasing and voltage reference in space-constrained, low-power circuits. It delivers a nominal 2.4 V Zener voltage at 50 µA test current, with ±2 % tolerance, 200 mA maximum forward current, and 365 mW total power dissipation - optimized for portable battery-powered systems and automotive sensor interfaces.
For engineers reviewing the BZX8850S-B2V4-QYL datasheet, BZX8850S-B2V4-QYL pinout, BZX8850S-B2V4-QYL application, or BZX8850S-B2V4-QYL equivalent, this device serves as a compact, AEC-Q101-qualified voltage reference where low leakage, tight tolerance, and side-wettable flanks for automated optical inspection are critical selection criteria.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 2.4 V (B-series, ±2 %) at IZ = 50 µA. Its differential resistance is ≤600 Ω at IZ = 5 mA, and temperature coefficient is −3.5 mV/K - enabling stable low-voltage referencing across ambient temperatures from −55 °C to +150 °C.
Designed for minimal board footprint and reflow-compatible assembly, it features side-wettable flanks on a 1.0 mm × 0.6 mm × 0.47 mm DFN1006BD-2 body, with cathode identified by a top-side marking bar. Thermal resistance from junction to ambient is 340 K/W on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.35 V to 2.45 V at IZ = 50 µA - ensures precise low-voltage regulation in micro-power bias networks |
| Tolerance | ±2 % (B-series) - supports tight-set reference accuracy without post-production trimming |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - minimizes conduction loss when used in dual-direction protection or clamping roles |
| Total Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C - defines safe continuous DC or pulsed operation on standard FR4 PCB |
| Reverse Current (IR) | ≤2.0 µA at VR = 1.0 V - enables ultra-low standby leakage in battery-critical applications |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in under-hood automotive environments and industrial edge nodes |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including high-temperature reverse bias stress and temperature cycling |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), leadless surface-mount, 1.0 mm × 0.6 mm × 0.47 mm body with side-wettable flanks for solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar on top surface identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | DFN1006BD-2 (1.0 mm × 0.6 mm) - saves >60 % board area vs. SOD-323, enabling dense sensor module layouts |
| Low test current operation | Specified at 50 µA - reduces quiescent current draw in always-on monitoring circuits |
| Side-wettable flanks | Integrated into SOD882BD outline - enables automated optical inspection (AOI) of solder joints without X-ray |
| Automotive qualification | AEC-Q101 compliant - qualified for engine control units, ADAS sensors, and body electronics |
| Controlled leakage profile | B-series devices exhibit intentional low IR for fast switching transients and reduced noise coupling |
Applications
| Automotive Cabin Sensors | Portable Medical Wearables |
|---|---|
|
Use Scenario: Voltage reference for MEMS pressure and humidity sensors in HVAC control modules. IC Role / Device Role / Timing Role: Zener reference diode providing stable 2.4 V bias to analog front-end amplifiers and ADCs. Use Value: ±2 % tolerance and −3.5 mV/K TC ensure <±10 mV drift over −40 °C to +125 °C, meeting ASIL-B sensor accuracy requirements. |
Use Scenario: Low-power voltage reference in disposable ECG patch circuitry powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision shunt reference supplying excitation voltage to instrumentation amplifier gain-setting resistors. Use Value: 2.0 µA max reverse current at 1.0 V enables >5-year battery life while maintaining 2.4 V reference stability during intermittent signal acquisition. |
| Industrial IoT Node Power Management | Consumer Audio Bias Networks |
|
Use Scenario: Regulation of gate drive voltage for low-side MOSFETs in smart valve actuator controllers. IC Role / Device Role / Timing Role: Zener clamp protecting gate oxide from overvoltage during transient load switching. Use Value: 365 mW Ptot and 200 mA IF rating allow robust handling of 100 µs surge events without derating in DIN-rail mounted enclosures. |
Use Scenario: DC bias generation for Class-AB headphone amplifier input stages in compact Bluetooth speakers. IC Role / Device Role / Timing Role: Low-noise shunt reference establishing virtual ground and common-mode voltage for op-amp inputs. Use Value: Differential resistance ≤600 Ω at 5 mA ensures <1 mV ripple rejection under dynamic audio load, preserving SNR >105 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-C2V4-Q | ±5 % tolerance (C-series), higher max reverse current (2.0 µA → 2.5 µA at VR = 1.0 V) | Suitable for non-critical biasing where cost sensitivity outweighs accuracy needs | Select when ±5 % VZ drift is acceptable and production volume favors broader tolerance bins |
| MMSZ4685T1G | 2.4 V nominal, ±5 %, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 qualification | Used in commercial-grade power supplies and consumer chargers with less stringent reliability demands | Choose only for non-automotive, non-safety-critical designs requiring higher power margin and legacy footprint compatibility |
Compared with BZX8850S-B2V4-QYL, the C2V4-Q offers relaxed tolerance and slightly higher leakage but identical package and automotive qualification; MMSZ4685T1G provides higher power headroom in a larger, non-automotive package - making the B-series part optimal for space- and reliability-constrained automotive and medical edge nodes.
Availability
BZX8850S-B2V4-QYL is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical wearables, industrial IoT node power management, and consumer audio bias networks requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for BZX8850S-B2V4-QYL 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 leading global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.
The BZX8850S-Q series belongs to Nexperia's low-current Zener regulator portfolio, engineered specifically for ultra-compact, low-leakage voltage referencing in battery-powered and automotive electronics where board space and thermal constraints dominate design decisions.
FAQ
What is the maximum reverse voltage that can be continuously applied to BZX8850S-B2V4-QYL without breakdown?
The device is rated for a nominal Zener voltage of 2.4 V at 50 µA, with guaranteed breakdown between 2.35 V and 2.45 V. Applying reverse voltage below 2.35 V will maintain sub-µA leakage; sustained reverse bias above 2.45 V initiates controlled Zener conduction. Absolute maximum reverse voltage is not defined - operation must remain within the specified VZ range and power limits.
Does BZX8850S-B2V4-QYL support reflow soldering with standard lead-free profiles?
Yes - the DFN1006BD-2 package is qualified for IPC/JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature up to 260 °C. The side-wettable flanks enable full solder joint inspection using AOI systems, and the recommended footprint matches Nexperia's published sod882bd_fr land pattern (0.6 mm pad width, 0.7 mm length, 0.65 mm pitch).
How does the −3.5 mV/K temperature coefficient affect regulation accuracy over temperature?
At 2.4 V nominal, a −3.5 mV/K coefficient yields approximately −0.84 mV/°C drift. Over a −40 °C to +125 °C range (165 K), total drift is ±139 mV - meaning output shifts from ~2.26 V to ~2.54 V. This is fully characterized and included in the ±2 % initial tolerance band; system-level compensation is not required for most automotive sensor biasing applications.
Is the cathode marking visible after reflow soldering?
Yes - the cathode is indicated by a laser-marked bar on the top surface of the DFN1006BD-2 package. This marking remains optically legible post-reflow due to its position on the molded plastic top side, enabling post-assembly verification and AOI-compatible polarity checking without X-ray imaging.
BZX8850S-B2V4-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8850S-Q
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-B2V4-QYL FAQ
1.How can I place an order for BZX8850S-B2V4-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B2V4-QYL 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 BZX8850S-B2V4-QYL reliable?
The price and inventory of BZX8850S-B2V4-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850S-B2V4-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B2V4-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B2V4-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B2V4-QYL?
BZX8850S-B2V4-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B2V4-QYL 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 BZX8850S-B2V4-QYL?
For technical support, including BZX8850S-B2V4-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B2V4-QYL requirements.
6.How does Aetrix verify that BZX8850S-B2V4-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B2V4-QYL 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 BZX8850S-B2V4-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B2V4-QYL?
All BZX8850S-B2V4-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B2V4-QYL, 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 BZX8850S-B2V4-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B2V4-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B2V4-QYL Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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