My Inquiry
My Account
Nexperia USA Inc. BZX8850S-B3V6-QYL
- Part No.:
- BZX8850S-B3V6-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B3V6-QYL.pdf
- Description:
- DIODE ZENER 3.6V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:3,674
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX8850S-B3V6-QYL from Nexperia is a low-current Zener voltage regulator diode in the BZX8850S-Q series, designed for precision biasing and voltage reference in space-constrained, low-power circuits. It delivers a nominal 3.6 V regulation at 50 µA test current, with ±2 % tolerance (B-series), 365 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-B3V6-QYL datasheet, BZX8850S-B3V6-QYL pinout, BZX8850S-B3V6-QYL application, or BZX8850S-B3V6-QYL equivalent, this device is selected for ultra-low-current voltage stabilization in battery-powered sensors, ECU reference rails, and portable instrumentation where side-wettable flanks support automated optical inspection (AOI) and reliable reflow soldering.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 3.53 V to 3.67 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and differential resistance ≤95 Ω at IZ = 5 mA. Its low 50 µA test current enables stable regulation under micro-power conditions.
The device uses a planar silicon process with side-wettable flanks on a DFN1006BD-2 (SOD882BD) package, enabling high-density PCB layouts and compatibility with standard reflow profiles. Junction-to-ambient thermal resistance is 340 K/W on FR4 with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.6 V - precise regulation point at 50 µA, supporting low-bias analog references |
| Voltage Tolerance | ±2 % - tight B-series tolerance ensures predictable rail accuracy in automotive ECUs |
| Power Dissipation | 365 mW - maximum continuous power at Tamb ≤ 25 °C on standard FR4 PCB |
| Forward Voltage | ≤0.9 V at IF = 10 mA - low conduction loss when used in forward-biased protection paths |
| Differential Resistance | ≤95 Ω at IZ = 5 mA - low dynamic impedance improves regulation stability under load variation |
| Junction Temperature | −55 °C to +150 °C - wide operating range supports under-hood automotive environments |
| AEC-Q101 Qualified | Yes - qualified for automotive discrete semiconductor stress testing per AEC standard |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount package measuring 1.0 mm × 0.6 mm × 0.47 mm, with side-wettable flanks for AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Marked side with bar; connects to regulated output node in reverse-bias configuration |
| 2 | Anode (A) | Ground or lower-potential reference; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low test current | 50 µA - enables stable regulation in µA-level bias networks without loading sensitive sources |
| Side-wettable flanks | DFN1006BD-2 package geometry - supports automated optical inspection of solder joints on high-density PCBs |
| Automotive qualification | AEC-Q101 compliant - validated for temperature cycling, humidity, mechanical shock, and ESD in automotive modules |
| Low leakage optimization | Intentional minor IR rise per AN90031 - balances fast switching response and noise reduction in signal conditioning paths |
| Thermal performance | Rth(j-a) = 340 K/W - enables operation up to 150 °C junction temperature with minimal derating on standard FR4 |
Applications
| Automotive Sensor Reference | Portable Medical Monitor Bias |
|---|---|
Use Scenario: Providing stable 3.6 V reference for MEMS pressure sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Zener voltage reference diode operating in reverse breakdown to fix analog front-end bias point. Use Value: ±2 % tolerance and −3.5 mV/K tempco ensure <±15 mV drift over −40 °C to +125 °C ambient, meeting ASIL-B sensor accuracy requirements. |
Use Scenario: Supplying low-noise bias voltage to op-amp input stages in handheld ECG acquisition circuits. IC Role / Device Role / Timing Role: Low-current Zener regulator establishing precision DC offset for analog signal chain. Use Value: 50 µA test current minimizes battery drain while maintaining 95 Ω dynamic impedance for stable gain calibration across 0–40 °C. |
| IoT Node Power Rail Clamp | Industrial PLC Input Protection |
Use Scenario: Clamping 3.3 V supply rail against transient overvoltage in LPWAN sensor nodes powered by coin cells. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as shunt overvoltage protector for ultra-low-quiescent LDOs. Use Value: 365 mW Ptot and 40 W non-repetitive surge rating (100 µs) absorb brief ESD events without failure in Class 2 IEC 61000-4-2 environments. |
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers from field-induced surges. IC Role / Device Role / Timing Role: Zener-based clamping element in multi-stage input protection network. Use Value: Side-wettable flanks ensure solder joint reliability on industrial PCBs subjected to thermal cycling and vibration, verified per AEC-Q101. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-C3V6-Q | ±5 % tolerance (C-series), higher max reverse current (2.0 µA vs. 1.5 µA at VR = 3.0 V) | Looser voltage accuracy; suitable for non-critical biasing where cost sensitivity outweighs precision | Select for cost-driven consumer electronics where ±5 % regulation is acceptable and AEC-Q101 is not required |
| MMSZ4685T1G | Same 3.6 V nominal, SOD-123 package (larger), 500 mW Ptot, no AEC-Q101 qualification | Larger footprint and higher power handling; lacks automotive qualification and side-wettable flanks | Choose only if board layout allows SOD-123 and automotive compliance is unnecessary; not drop-in compatible |
Compared with BZX8850S-C3V6-Q, the BZX8850S-B3V6-QYL offers tighter voltage control and automotive qualification; versus MMSZ4685T1G, it provides superior AOI support and thermal density but requires stricter layout constraints due to its 1.0 mm × 0.6 mm footprint.
Availability
BZX8850S-B3V6-QYL is available at Aetrix Electronics and suitable for automotive sensor modules, portable medical monitors, IoT edge nodes, and industrial PLC input stages requiring stable component supply with AEC-Q101 assurance and ultra-small packaging.
Supply support for BZX8850S-B3V6-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 global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BZX8850S-Q series targets low-power voltage regulation in space-constrained, mission-critical applications-especially automotive electronics requiring AEC-Q101 compliance and robust thermal performance in miniature packages.
FAQ
What is the maximum reverse current at 3.0 V for BZX8850S-B3V6-QYL?
The maximum reverse current (IR) at VR = 3.0 V is 1.5 µA, measured at Tj = 25 °C. This low leakage supports stable operation in battery-powered systems where standby current must remain below 2 µA, and aligns with the device's design for micro-power bias networks.
Can BZX8850S-B3V6-QYL be used in place of a standard 3.3 V Zener diode?
No-it is rated for 3.6 V nominal regulation (3.53–3.67 V range), not 3.3 V. Substituting it for a 3.3 V Zener would result in ~9 % higher reference voltage, potentially causing overvoltage in downstream circuitry. Use BZX8850S-B3V3-Q for 3.3 V applications.
Does the side-wettable flank feature require special stencil or reflow profile?
No special stencil is required-the DFN1006BD-2 footprint matches standard IPC-7351B guidelines. Reflow follows JEDEC J-STD-020; side-wettable flanks enable solder meniscus visibility during AOI but do not alter thermal or process parameters versus conventional DFN packages.
Is the 365 mW power rating valid at elevated ambient temperatures?
No-the 365 mW rating applies only at Tamb ≤ 25 °C on an FR4 PCB with single-sided copper. Derating is required above 25 °C: Rth(j-a) = 340 K/W implies ~1.06 mW/°C reduction, so at 85 °C ambient, max allowable power drops to ~303 mW to maintain Tj ≤ 150 °C.
BZX8850S-B3V6-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):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 2 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-B3V6-QYL FAQ
1.How can I place an order for BZX8850S-B3V6-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B3V6-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-B3V6-QYL reliable?
The price and inventory of BZX8850S-B3V6-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-B3V6-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B3V6-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B3V6-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B3V6-QYL?
BZX8850S-B3V6-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B3V6-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-B3V6-QYL?
For technical support, including BZX8850S-B3V6-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B3V6-QYL requirements.
6.How does Aetrix verify that BZX8850S-B3V6-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B3V6-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-B3V6-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B3V6-QYL?
All BZX8850S-B3V6-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B3V6-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-B3V6-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B3V6-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B3V6-QYL 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…
