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Nexperia USA Inc. BZX884S-B20-QYL
- Part No.:
- BZX884S-B20-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B20-QYL.pdf
- Description:
- DIODE ZENER 20V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:994
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Product details
Overview
BZX884S-B20-QYL from Nexperia is a ±2 % tolerance Zener diode in SOD882BD (DFN1006BD-2) package, rated for 20 V nominal breakdown voltage at IZ = 5 mA, with 365 mW total power dissipation and qualified to AEC-Q101 for automotive voltage regulation and reference applications.
For engineers reviewing the BZX884S-B20-QYL datasheet, BZX884S-B20-QYL pinout, BZX884S-B20-QYL application, or BZX884S-B20-QYL equivalent, this page delivers verified Zener parameters, side-wettable flank package details, cathode/anode terminal mapping, automotive-grade thermal limits, and direct alternative comparisons - all grounded in Nexperia's Rev. 2 May 2021 product data sheet.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse bias above its specified Zener voltage (19.6–20.4 V at 5 mA), with differential resistance of 60 Ω (typ.) and temperature coefficient of +14.0 mV/K (typ.) enabling stable regulation across −55 °C to +150 °C ambient.
Designed for surface-mount use on FR4 PCBs with single-sided 70 μm copper, it delivers 0.9 V forward voltage at 10 mA and supports peak forward current up to 200 mA, while its 340 K/W junction-to-ambient thermal resistance reflects its ultra-small 1.0 mm × 0.6 mm × 0.47 mm footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 19.6 V to 20.4 V at IZ = 5 mA - defines precise regulation point for low-power reference circuits |
| Tolerance | ±2 % - enables tighter voltage margin control than ±5 % variants in precision feedback paths |
| Differential Resistance rdif | 60 Ω (typ.) at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation Ptot | 365 mW on FR4 PCB - sets maximum continuous DC or pulsed power handling under standard layout |
| Reverse Current IR | ≤0.05 μA at VR = 15 V - ensures minimal leakage in high-impedance bias networks |
| Junction Temperature Tj | −55 °C to +150 °C - supports operation in under-hood automotive environments |
| Package | SOD882BD (DFN1006BD-2) - 0.65 mm pitch, side-wettable flanks for automated optical solder-joint inspection |
Pinout & Package
SOD882BD is a 2-terminal leadless DFN package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks for reliable reflow soldering and AOI compatibility. The marking bar identifies the cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forward conduction path during transient clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including body control modules and sensor interfaces |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing manufacturing defect escape |
| Ultra-small footprint | 1.0 mm × 0.6 mm area saves board space in compact power management and ESD protection layouts |
| Two tolerance options | ±2 % (B-series) and ~±5 % (C-series) allow cost/performance trade-off in voltage reference selection |
| Wide voltage range | 2.4 V to 75 V coverage across 37 discrete values supports diverse supply rail stabilization needs |
Applications
| Automotive Sensor Reference | Low-Power MCU Voltage Monitor |
|---|---|
Use Scenario: Providing stable 20 V reference for analog front-end circuitry in engine coolant temperature sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential for ADC input scaling. Use Value: ±2 % tolerance and −55 °C to +150 °C operation ensure consistent sensor accuracy across full vehicle thermal envelope. |
Use Scenario: Monitoring 24 V vehicle battery voltage via resistive divider into microcontroller's analog input. IC Role / Device Role / Timing Role: Clamping and regulating divided voltage to stay within MCU's 3.3 V ADC input range. Use Value: 365 mW power rating and low 0.05 μA leakage at 15 V prevent loading error and enable long-term reliability. |
| Industrial I/O Module Protection | Consumer Power Supply Feedback |
Use Scenario: Stabilizing bias voltage for optocoupler-based isolation in PLC digital output modules. IC Role / Device Role / Timing Role: Zener reference setting LED drive current threshold to maintain CTR consistency. Use Value: 60 Ω differential resistance minimizes output drift under varying load currents across temperature. |
Use Scenario: Generating precise 20 V reference for TL431-based feedback loop in AC/DC adapter secondary-side regulation. IC Role / Device Role / Timing Role: Voltage reference element defining shunt regulator setpoint in isolated flyback design. Use Value: Side-wettable flanks ensure robust solder joint integrity during high-volume reflow assembly of consumer power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C20-Q | ~±5 % tolerance (18.8–21.2 V), higher max IR (0.05 μA vs. B-series' 0.05 μA same), identical package and Ptot | Acceptable where tighter regulation not required; lower cost in non-critical bias networks | Select for cost-sensitive industrial controls where ±5 % VZ margin is sufficient |
| MMSZ5244B-TP | 20 V ±5 %, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 qualification | Larger footprint, higher power, but lacks automotive qualification and side-wettable flanks | Choose only for non-automotive designs needing higher power or legacy SOD-123 compatibility |
Compared with BZX884S-B20-QYL, the C20-Q offers relaxed tolerance at identical size and qualification, while MMSZ5244B-TP trades automotive compliance and miniaturization for higher power and legacy package familiarity - making the B-series optimal for space-constrained, AEC-Q101–mandated applications.
Availability
BZX884S-B20-QYL is available at Aetrix Electronics and suitable for automotive sensor references, low-power MCU voltage monitors, and industrial I/O module protection requiring stable component supply with AEC-Q101 assurance and side-wettable flank manufacturability.
Supply support for BZX884S-B20-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 logic, discrete, and MOSFET devices, with leadership in automotive-qualified components and advanced packaging.
The BZX884S-Q series belongs to Nexperia's general-purpose Zener diode portfolio, engineered specifically for space-constrained automotive and industrial voltage regulation where AEC-Q101 compliance and ultra-small SMD form factor are mandatory.
FAQ
What is the maximum reverse voltage before breakdown for BZX884S-B20-QYL?
The nominal Zener voltage is 20 V with a guaranteed range of 19.6 V to 20.4 V at 5 mA test current. Below 15 V reverse bias, leakage remains ≤0.05 μA; breakdown is sharp and repeatable within this specification window per Nexperia's Rev. 2 datasheet.
Can BZX884S-B20-QYL be used in place of a 1N4744A?
No - the 1N4744A is a 14 W through-hole Zener in DO-41 package with 14 V rating and ±5 % tolerance. BZX884S-B20-QYL is a 20 V, ±2 %, 365 mW, AEC-Q101–qualified SMD device in DFN1006BD-2. They differ in voltage, power, package, qualification, and tolerance - direct substitution is not electrically or mechanically viable.
Does BZX884S-B20-QYL require a heatsink in standard FR4 layouts?
No - its 365 mW power rating is specified for operation on a standard FR4 PCB with single-sided 70 μm copper and tin plating. With Rth(j-a) = 340 K/W, junction temperature stays within 150 °C limit at full power under 25 °C ambient, eliminating need for external heatsinking in typical applications.
How is polarity identified on the BZX884S-B20-QYL package?
A laser-marked bar on the top surface indicates the cathode (Pin 1); Pin 2 is the anode. This marking aligns with the simplified outline in Table 2 of the datasheet and is visible under standard optical inspection, supporting automated placement and AOI verification.
BZX884S-B20-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 14 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX884S-B20-QYL FAQ
1.How can I place an order for BZX884S-B20-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B20-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 BZX884S-B20-QYL reliable?
The price and inventory of BZX884S-B20-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884S-B20-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B20-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B20-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B20-QYL?
BZX884S-B20-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B20-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 BZX884S-B20-QYL?
For technical support, including BZX884S-B20-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B20-QYL requirements.
6.How does Aetrix verify that BZX884S-B20-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B20-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 BZX884S-B20-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B20-QYL?
All BZX884S-B20-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B20-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 BZX884S-B20-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B20-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B20-QYL Tags
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