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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. PZU884LS-B51-QYL

Name: PZU884LS-B51-QYL
Brand: Nexperia USA Inc.
SKU: PZU884LS-B51-QYL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PZU884LS-B51-QYL

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SOD-882

Datasheet:: PZU884LS-B51-QYL.pdf

Description:: DIODE ZENER 51V 365MW DFN1006BD

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Product details

Overview

PZU884LS-B51-QYL from Nexperia is a 51 V ±5 % tolerance Zener voltage regulator diode in a leadless DFN1006BD-2 (SOD882BD) package with side-wettable flanks, designed for precision voltage reference and overvoltage protection in automotive power rails. It delivers 27 Ω typical differential resistance at I_Z = 2 mA, 0.05 μA max reverse current at V_R = 39 V, and operates up to 150 °C junction temperature.

For engineers reviewing the PZU884LS-B51-QYL datasheet, PZU884LS-B51-QYL pinout, PZU884LS-B51-QYL application, or PZU884LS-B51-QYL equivalent, this page provides verified Zener breakdown voltage, thermal resistance, leakage behavior, and AEC-Q101 qualification status for automotive-grade board-level regulation and ESD clamp design.

Technical Context

This Zener diode belongs to the PZU884LS-Q series' high-voltage segment (B39-Q to C51-Q), optimized for fast switching and noise reduction via intentional minor leakage rise-enabling stable clamping during transient surges without oscillation. Its 40 W non-repetitive peak reverse power rating (t_p = 100 μs) supports robust surge immunity in 12 V/24 V automotive subsystems.

The device uses a planar silicon process with side-wettable flanks for automated optical solder-joint inspection, and its −65 °C to +150 °C storage/operating range aligns with under-hood and ADAS module requirements. Thermal resistance R_th(j-a) is 340 K/W on standard FR4, enabling predictable derating in compact PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener voltage V_Z	48.0 V min / 54.0 V max at I_Z = 2 mA - defines clamping threshold for 51 V nominal rail protection
Differential resistance r_dif	400 Ω max at I_Z = 2 mA - ensures low voltage shift under load variation in reference circuits
Reverse current I_R	0.05 μA max at V_R = 39 V - minimizes standby power loss in always-on vehicle modules
Total power dissipation P_tot	365 mW - sets maximum continuous DC power handling on standard FR4 layout
Non-repetitive peak power P_ZSM	40 W at t_p = 100 μs - enables TVS-like surge suppression without external components
Junction temperature T_j	150 °C max - supports operation in engine control units and powertrain ECUs
AEC-Q101 qualified	Yes - certified for automotive discrete semiconductor stress testing per AEC standard

Pinout & Package

DFN1006BD-2 (SOD882BD) ultra-small 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 (marked side)	Cathode (K)	Connected to regulated voltage node; polarity bar indicates cathode for correct PCB orientation
2	Anode (A)	Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation

Key Features

Feature	Design Value
Side-wettable flanks	Enables automated optical inspection of solder joints without X-ray, reducing manufacturing defect escape
AEC-Q101 qualification	Validated for automotive use including temperature cycling, HTRB, and ESD testing per discrete semiconductor standard
Optimized leakage profile	Controlled 0.05 μA max IR at 39 V supports fast turn-on while minimizing quiescent current in battery-sensitive systems
Hard breakdown knee	Sharp Zener transition at 51 V enables precise clamping without soft saturation, critical for CAN/LIN bus protection
Low thermal resistance footprint	Standard FR4 layout achieves 340 K/W R_th(j-a), allowing >300 mW dissipation in space-constrained ADAS camera modules

Applications

Engine Control Unit (ECU) Power Rail Clamp

ADAS Camera Module Voltage Reference

Use Scenario: Clamping transients on 5V/12V supply lines in gasoline/diesel engine control units exposed to load dump and jump-start events.

IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt excess energy into ground, preventing overvoltage damage to microcontrollers and sensors.

Use Value: 40 W peak surge capability and 150 °C rating ensure reliable protection during ISO 7637-2 Pulse 5a (load dump) without derating or heatsinking.

Use Scenario: Providing stable 51 V reference for high-side current sensing and LED driver biasing in automotive surround-view camera modules.

IC Role / Device Role / Timing Role: Precision voltage reference element maintaining fixed potential across sense resistors and op-amp feedback networks.

Use Value: 27 Ω typical r_dif and ±5 % tolerance ensure <±0.5 V drift over temperature and current variation, preserving ADC accuracy.

Infotainment System ESD Protection

Body Control Module (BCM) Overvoltage Guard

Use Scenario: Secondary ESD clamp on USB-C or LVDS interfaces in head unit displays subjected to IEC 61000-4-2 contact discharge.

IC Role / Device Role / Timing Role: Fast-turning Zener absorbing electrostatic pulses before they reach sensitive SerDes ICs or touch controllers.

Use Value: Intentional minor leakage rise reduces ringing and overshoot during 8 kV ESD events, improving signal integrity on high-speed buses.

Use Scenario: Overvoltage guard on LIN bus transceiver V_CC pins in door modules and seat controllers during battery backup switching.

IC Role / Device Role / Timing Role: Standby Zener regulator holding V_CC within safe limits when main supply exceeds 51 V due to alternator regulation faults.

Use Value: 0.05 μA max reverse current at 39 V prevents measurable battery drain in always-on BCM sleep modes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C51,115	Same 51 V nominal, ±5 %, but SOT23 package (larger, no side-wettable flanks); 600 mW P_tot; higher r_dif (70 Ω typ)	Not AEC-Q101 qualified; unsuitable for automotive under-hood placement	Select only for non-automotive industrial prototypes where board area is not constrained
MMSZ5257ET1G	51 V nominal, ±5 %, SOD-123 package; 500 mW P_tot; 100 Ω r_dif typ; AEC-Q101 qualified	Larger footprint (2.7 mm × 1.6 mm vs. 1.0 mm × 0.6 mm); no side-wettable flanks	Choose when legacy SOD-123 layout reuse is required and AOI inspection is not mandatory

Compared with BZX84-C51,115 and MMSZ5257ET1G, PZU884LS-B51-QYL offers the smallest footprint, AEC-Q101 compliance, side-wettable flanks for automated assembly, and lowest r_dif in the 51 V class-making it optimal for next-generation automotive modules where space, reliability, and manufacturability are co-constrained.

Availability

PZU884LS-B51-QYL is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, infotainment system ESD protection, and body control module overvoltage guards requiring stable component supply across production lifecycles.

Supply support for PZU884LS-B51-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 essential efficiency technologies, delivering high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.

The PZU884LS-Q series targets automotive-grade Zener regulation with AEC-Q101 qualification, side-wettable flanks, and optimized leakage profiles-designed specifically for space-constrained, high-reliability power rail stabilization and transient suppression.

FAQ

What is the marking code for PZU884LS-B51-QYL?

The marking code for PZU884LS-B51-QYL is 'SQ', printed as a single-character identifier on the cathode-side top surface of the DFN1006BD-2 package. This matches Table 4 in the official Nexperia datasheet Rev. 4, where 'SQ' corresponds exclusively to the B51-Q variant.

Does PZU884LS-B51-QYL support reflow soldering per JEDEC J-STD-020?

Yes-PZU884LS-B51-QYL is qualified for standard lead-free reflow per JEDEC J-STD-020D. The DFN1006BD-2 package has a maximum peak temperature rating of 260 °C, and Nexperia provides validated footprint data (Fig. 10) with 0.7 mm solder land width and 0.4 mm solder mask opening for reliable joint formation.

How does the 'B' suffix differ from 'C' in the PZU884LS-Q series?

The 'B' suffix (e.g., PZU884LS-B51-QYL) denotes the ±5 % tolerance grade with intentionally elevated leakage for fast switching and noise reduction, while 'C' indicates ±2 % tolerance and lower leakage. For PZU884LS-B51-QYL, this means 0.05 μA max IR at 39 V versus <0.1 μA for the C51-Q variant-optimized for transient response over absolute precision.

Can PZU884LS-B51-QYL replace older PZUxxL series Zeners in existing designs?

Yes, with layout adaptation: PZU884LS-B51-QYL shares identical electrical characteristics (V_Z, r_dif, P_tot) with legacy PZU51L but uses the smaller DFN1006BD-2 package instead of SOD-323. PCB footprint must be updated to match the 1.0 mm × 0.6 mm outline and 0.65 mm pitch; no circuit redesign is needed.

PZU884LS-B51-QYL Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: PZU884LS-Q

Package/Case:: SOD-882

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 51 V

Tolerance:: ±2%

Power - Max:: 365 mW

Impedance (Max) (Zzt):: 180 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 35.7 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

PZU884LS-B51-QYL FAQ

1.How can I place an order for PZU884LS-B51-QYL through Aetrix?

Please submit a Request for Quotation (RFQ) for PZU884LS-B51-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 PZU884LS-B51-QYL reliable?

The price and inventory of PZU884LS-B51-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU884LS-B51-QYL is usually 5 days.

3.What payment methods are accepted for PZU884LS-B51-QYL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU884LS-B51-QYL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PZU884LS-B51-QYL?

PZU884LS-B51-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PZU884LS-B51-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 PZU884LS-B51-QYL?

For technical support, including PZU884LS-B51-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU884LS-B51-QYL requirements.

6.How does Aetrix verify that PZU884LS-B51-QYL is sourced from the original manufacturer or authorized distributors?

All PZU884LS-B51-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 PZU884LS-B51-QYL meets industry standards.

7.What is the process for return or replacement of PZU884LS-B51-QYL?

All PZU884LS-B51-QYL units undergo pre-shipment inspection (PSI). If there is an issue with PZU884LS-B51-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 PZU884LS-B51-QYL part is unused and in its original packaging.

Return procedure for PZU884LS-B51-QYL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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