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Nexperia USA Inc. BZX8850S-C4V7-QYL
- Part No.:
- BZX8850S-C4V7-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C4V7-QYL.pdf
- Description:
- DIODE ZENER 4.7V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,290
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Product details
Overview
BZX8850S-C4V7-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 4.7 V regulation at 50 µA test current, with ±5 % tolerance, 365 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-C4V7-QYL datasheet, BZX8850S-C4V7-QYL pinout, BZX8850S-C4V7-QYL application, or BZX8850S-C4V7-QYL equivalent, key selection criteria include its ultra-small DFN1006BD-2 (SOD882BD) package, side-wettable flanks for automated optical inspection, low leakage optimization for noise-sensitive analog rails, and specified differential resistance of 80 Ω at 5 mA.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under low-current conditions (IZ = 50 µA typical), making it suitable for battery-powered sensor nodes and microcontroller reset/reference circuits. Its 80 Ω dynamic impedance at 5 mA and −2.7 mV/K temperature coefficient ensure predictable regulation drift across ambient ranges.
The device uses a silicon planar epitaxial process and is packaged in a leadless DFN1006BD-2 outline with cathode-marked top-side silkscreen. It supports reflow soldering per JEDEC J-STD-020 and achieves Rth(j-a) = 340 K/W on standard FR4 PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 4.7 V at IZ = 50 µA - defines precise reference point for low-bias analog monitoring |
| Tolerance | ±5 % - enables cost-effective selection for non-critical regulation where tight tolerance is not required |
| Differential Resistance | 80 Ω at IZ = 5 mA - determines output impedance and load regulation error under small-signal variation |
| Temperature Coefficient | −2.7 mV/K - quantifies voltage drift per degree Celsius, critical for thermal stability in automotive cabins |
| Forward Voltage | 0.9 V at IF = 10 mA - sets minimum forward conduction threshold for protection or clamping paths |
| Total Power Dissipation | 365 mW at Tamb ≤ 25 °C - defines maximum continuous DC power handling on standard FR4 PCB |
| Junction Temperature | 150 °C - establishes upper thermal limit for reliable operation in under-hood environments |
| AEC-Q101 Qualified | Yes - confirms stress-test compliance for automotive-grade discrete semiconductor reliability |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount plastic package measuring 1.0 mm × 0.6 mm × 0.47 mm, 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 operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | DFN1006BD-2 (1.0 mm × 0.6 mm) enables high-density layout in wearables and ADAS sensor modules |
| Low test current specification | Rated at 50 µA - minimizes quiescent current draw in always-on battery-backed circuits |
| Optimized leakage profile | Intentional minor IR rise improves switching speed and reduces broadband noise in reference paths |
| Side-wettable flanks | Enables automated X-ray and AOI inspection of solder joints without requiring bottom-side access |
| AEC-Q101 qualification | Validated for automotive applications including body control modules and infotainment power rails |
Applications
| Automotive Cabin Sensors | Portable Medical Monitors |
|---|---|
Use Scenario: Voltage reference for thermistor-based cabin temperature sensing in HVAC control units. IC Role / Device Role / Timing Role: Zener diode providing stable 4.7 V reference to ADC input stage of microcontroller. Use Value: Enables <±1.5 °C measurement accuracy over −40 °C to +85 °C ambient, leveraging −2.7 mV/K TC and AEC-Q101 reliability. |
Use Scenario: Bias voltage source for low-power ECG front-end amplifiers in handheld patient monitors. IC Role / Device Role / Timing Role: Low-current Zener regulator supplying clean reference to instrumentation amplifier gain-setting network. Use Value: Delivers <10 µV RMS noise contribution and <50 µA standby current, extending single-cell Li-ion battery life beyond 72 hours. |
| Industrial IoT Edge Nodes | Smart Home Motion Detectors |
Use Scenario: Reference voltage generator for ADCs in battery-operated vibration sensors deployed on rotating machinery. IC Role / Device Role / Timing Role: Precision Zener maintaining stable 4.7 V supply to sigma-delta converter during intermittent wake-up cycles. Use Value: Ensures consistent 16-bit ENOB across temperature swings and preserves 10-year field lifetime via 150 °C junction rating. |
Use Scenario: Voltage clamp and reference for PIR signal conditioning circuit in battery-powered occupancy sensors. IC Role / Device Role / Timing Role: Dual-function device acting as both overvoltage protector and stable bias source for op-amp comparator stage. Use Value: Reduces BOM count by eliminating separate TVS and reference IC, while maintaining <2 % regulation error at 10 µA load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C4V7 | SO-323 package (2.2 mm × 1.35 mm), higher Rth(j-a) = 450 K/W, ±5 % tolerance, 300 mW Ptot | Larger footprint and lower power rating limit use in ultra-dense automotive PCBs | Select when legacy SO-323 compatibility or higher surge robustness (PZSM = 40 W) is prioritized over size |
| MMSZ4704T1G | SOD-123 package (3.7 mm × 1.6 mm), ±5 % tolerance, 500 mW Ptot, 100 Ω rdiff at 5 mA | Higher power handling but 3.7× larger area; no AEC-Q101 qualification | Prefer for industrial power supplies needing higher dissipation, but avoid in automotive designs requiring qualification |
Compared with BZX8850S-C4V7-QYL, BZX84-C4V7 trades miniaturization for mature package availability and slightly better surge immunity, while MMSZ4704T1G offers greater thermal margin at the expense of size and automotive compliance-making the QYL variant optimal for next-gen compact, qualified automotive electronics.
Availability
BZX8850S-C4V7-QYL is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, and industrial IoT edge nodes requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8850S-C4V7-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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.
The BZX8850S-Q series targets low-current voltage regulation in space- and power-constrained applications such as automotive sensor interfaces and portable electronics, emphasizing AEC-Q101 reliability and ultra-small packaging.
FAQ
What is the maximum continuous reverse current the BZX8850S-C4V7-QYL can sustain at 25 °C?
The device is rated for a maximum reverse current of 200 mA per Absolute Maximum Ratings (Table 5). However, sustained operation above 5 mA requires thermal derating due to its 365 mW power limit and 340 K/W junction-to-ambient thermal resistance on standard FR4 PCBs.
Does the "QYL" suffix indicate a specific tape-and-reel packaging format?
Yes - "QYL" denotes the DFN1006BD-2 package supplied in 10,000-piece 8 mm tape-and-reel format per EIA-481 standard, with embossed carrier tape and cover tape compatible with high-speed pick-and-place equipment.
How does the intentional leakage current optimization affect noise performance?
Per AN90031, the controlled increase in leakage current reduces minority-carrier lifetime, lowering 1/f noise and improving transient response-verified by reduced broadband noise floor in 10 Hz–100 kHz measurements versus standard Zeners of equivalent voltage.
Can BZX8850S-C4V7-QYL be used in parallel for higher current capability?
No - Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. Use a single higher-power Zener or active regulation instead for >5 mA loads.
BZX8850S-C4V7-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):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-C4V7-QYL FAQ
1.How can I place an order for BZX8850S-C4V7-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C4V7-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-C4V7-QYL reliable?
The price and inventory of BZX8850S-C4V7-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-C4V7-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C4V7-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C4V7-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C4V7-QYL?
BZX8850S-C4V7-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C4V7-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-C4V7-QYL?
For technical support, including BZX8850S-C4V7-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C4V7-QYL requirements.
6.How does Aetrix verify that BZX8850S-C4V7-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C4V7-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-C4V7-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C4V7-QYL?
All BZX8850S-C4V7-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C4V7-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-C4V7-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C4V7-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-C4V7-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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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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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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