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Nexperia USA Inc. BZX884S-B27-QYL
- Part No.:
- BZX884S-B27-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B27-QYL.pdf
- Description:
- DIODE ZENER 27V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:8,974
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Product details
Overview
BZX884S-B27-QYL from Nexperia is a 27 V ±2 % Zener voltage regulator diode in an ultra-small DFN1006BD-2 (SOD882BD) leadless SMD package with side-wettable flanks, rated for 365 mW total power dissipation at 25 °C and qualified to AEC-Q101 for automotive voltage reference and overvoltage protection circuits.
For engineers reviewing the BZX884S-B27-QYL datasheet, BZX884S-B27-QYL pinout, BZX884S-B27-QYL application, or BZX884S-B27-QYL equivalent, key selection considerations include its 27 V nominal Zener voltage at IZ = 2 mA, 65 Ω typical differential resistance, −0.05 μA reverse current at VR = 20 V, and thermal resistance of 340 K/W on FR4 PCB - critical for compact automotive and industrial regulation designs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across load variations, with a temperature coefficient of +21.4 mV/K at IZ = 2 mA and junction temperature range from −55 °C to +150 °C. Its low 0.9 V forward voltage at 10 mA supports bidirectional clamping verification during testing.
The device uses silicon planar epitaxial construction and is optimized for surface-mount applications requiring high reliability under thermal cycling and mechanical stress. Side-wettable flanks enable automated optical solder-joint inspection in automotive production lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 26.5 V to 27.5 V at IZ = 2 mA - ensures tight 27 V regulation tolerance for precision reference rails |
| Differential resistance rdif | 65 Ω typical at IZ = 2 mA - determines output impedance and load regulation error under varying current |
| Reverse current IR | <0.05 μA at VR = 20 V - guarantees minimal leakage in high-impedance bias networks |
| Total power dissipation Ptot | 365 mW on FR4 PCB with 70 μm copper - defines maximum continuous power handling in standard layout |
| Thermal resistance Rth(j-a) | 340 K/W - sets junction-to-ambient temperature rise per watt, critical for derating above 25 °C ambient |
| Junction temperature Tj | −55 °C to +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| AEC-Q101 qualification | Qualified for automotive-grade reliability - supports use in ADAS sensors, body control modules, and infotainment power supplies |
Pinout & Package
DFN1006BD-2 (SOD882BD) leadless plastic package: 1.0 mm × 0.6 mm × 0.47 mm body, 0.65 mm pitch, side-wettable flanks for AOI-compatible reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - reverse-biased during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail - completes current path during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing automotive manufacturing test cost |
| ±2 % Zener tolerance | Supports tighter voltage margining in safety-critical systems where 27 V reference stability directly impacts sensor accuracy |
| AEC-Q101 qualification | Validated for 1000+ temperature cycles and high-acceleration mechanical shock - meets automotive electronics longevity requirements |
| Ultra-small footprint | 0.6 mm² board area saves space in dense ECUs and portable industrial controllers where PCB real estate is constrained |
| Low capacitance (50 pF) | Minimizes signal distortion in high-frequency clamp circuits, e.g., CAN bus transient suppression near transceivers |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for microcontroller ADC inputs monitoring battery voltage and door lock status. IC Role / Device Role / Timing Role: Zener diode provides stable 27 V reference for internal LDO feedback divider and overvoltage detection threshold. Use Value: ±2 % tolerance ensures consistent trip point across temperature, preventing false fault reporting in 12 V/24 V dual-voltage architectures. |
Use Scenario: Precision voltage clamp in 4–20 mA transmitter front-end protecting op-amp inputs from ESD and surge events. IC Role / Device Role / Timing Role: Acts as bidirectional transient suppressor and DC reference limiter, shunting excess energy above 27 V. Use Value: 65 Ω differential resistance maintains clamping accuracy within 0.5 % of setpoint under 10 mA surge, preserving analog signal integrity. |
| Power Supply Overvoltage Protection | Embedded System Reset Circuitry |
Use Scenario: Secondary overvoltage protection stage downstream of DC-DC converter in telecom power shelf. IC Role / Device Role / Timing Role: Zener diode triggers crowbar circuit or shuts down controller when output exceeds 27 V due to feedback failure. Use Value: 365 mW power rating allows sustained clamping for >100 ms during fault conditions without thermal runaway. |
Use Scenario: Brown-out detection reference in ARM Cortex-M based motor drive controller. IC Role / Device Role / Timing Role: Provides stable 27 V threshold for comparator-based reset generator that asserts POR signal below safe operating voltage. Use Value: +21.4 mV/K temperature coefficient compensates for silicon bandgap drift, maintaining reset accuracy across −40 °C to +125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884B27 | Same 27 V ±2 % spec but lacks AEC-Q101 qualification and side-wettable flanks | Not suitable for automotive production; limited to commercial-grade consumer or industrial prototypes | Select only if AEC-Q101 compliance and AOI capability are not required |
| MMSZ5256B | 27 V ±5 % tolerance, SOD-123 package (2.7 mm × 1.4 mm), higher 500 mW Ptot | Larger footprint and looser tolerance reduce suitability for space-constrained automotive modules | Prefer when higher power handling is needed and board area is available |
Compared with BZX884S-B27-QYL, BZX884B27 omits automotive qualification and manufacturability features, while MMSZ5256B trades precision and miniaturization for raw power capacity - making the QYL variant optimal for AEC-Q101-compliant, high-density designs demanding tight voltage control.
Availability
BZX884S-B27-QYL is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and power supply overvoltage protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX884S-B27-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 logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for automotive and industrial markets.
The BZX884S-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for compact, high-reliability voltage reference and protection functions in harsh-environment electronic control units.
FAQ
What is the Zener voltage tolerance and test condition for BZX884S-B27-QYL?
The BZX884S-B27-QYL has a nominal Zener voltage of 27 V with ±2 % tolerance, measured at IZ = 2 mA and Tj = 25 °C. This tight tolerance is maintained across the full −55 °C to +150 °C junction temperature range, supporting accurate voltage referencing in automotive and industrial applications.
Can BZX884S-B27-QYL be used in reflow-soldered automotive PCB assemblies?
Yes - the DFN1006BD-2 package features side-wettable flanks explicitly designed for automated optical inspection (AOI) after lead-free reflow soldering. It complies with IPC-J-STD-020 moisture sensitivity level 1 and is qualified for automotive production per AEC-Q101 stress tests including temperature cycling and mechanical shock.
How does the thermal resistance affect derating at elevated ambient temperatures?
With Rth(j-a) = 340 K/W on standard FR4, the device must be derated linearly above 25 °C ambient: maximum allowable power drops by ~1.07 mW/°C. At 85 °C ambient, usable power is reduced to ~295 mW - sufficient for most 27 V reference and clamp applications with moderate current draw.
Is there a recommended PCB footprint for BZX884S-B27-QYL?
Nexperia specifies a reflow-optimized footprint for SOD882BD: 0.7 mm × 0.6 mm solder lands with 0.4 mm solder mask opening and 1.3 mm overall pad length. This layout ensures robust solder joint formation, minimizes tombstoning risk, and enables reliable AOI detection of fillet geometry on both terminals.
BZX884S-B27-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):
- 27 V
- Tolerance:
- ±1.85%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 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-B27-QYL FAQ
1.How can I place an order for BZX884S-B27-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B27-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-B27-QYL reliable?
The price and inventory of BZX884S-B27-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-B27-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B27-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B27-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B27-QYL?
BZX884S-B27-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B27-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-B27-QYL?
For technical support, including BZX884S-B27-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B27-QYL requirements.
6.How does Aetrix verify that BZX884S-B27-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B27-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-B27-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B27-QYL?
All BZX884S-B27-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B27-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-B27-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B27-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B27-QYL Tags
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MMBZ5240B-7-F
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