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

Nexperia USA Inc. PDZ27BGWX

Name: PDZ27BGWX
Brand: Nexperia USA Inc.
SKU: PDZ27BGWX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDZ27BGWX

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SOD-123

Datasheet:: PDZ27BGWX.pdf

Description:: DIODE ZENER 27V 365MW SOD123

Quantity:: RFQ Add To RFQ list

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Inventory:2,994

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Product details

Overview

PDZ27BGWX from Nexperia is a single Zener diode in SOD123 package, designed for precision voltage regulation and reference functions at 27 V nominal Zener voltage (V_Z = 26.19–27.53 V @ I_Z = 5 mA), ±2 % tolerance (B-series), 150 µA max reverse current at 21 V, and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the PDZ27BGWX datasheet, PDZ27BGWX pinout, PDZ27BGWX application, or PDZ27BGWX equivalent, this device supports stable low-power voltage clamping, overvoltage protection, and biasing in space-constrained automotive and industrial PCBs where thermal resistance to ambient (R_th(j-a) = 340 K/W) and surge robustness (P_ZSM = 40 W, t_p = 100 µs) are critical selection criteria.

Technical Context

This Zener diode operates in reverse breakdown with tightly controlled differential resistance (r_dif ≤ 150 Ω @ I_Z = 5 mA) and low temperature coefficient (S_Z = +21.0 to +23.4 mV/K), enabling stable regulation across −55 °C to +150 °C ambient range. Its cathode-anode polarity is unidirectional and marked by a bar on the SOD123 body.

It delivers 365 mW total power dissipation at T_amb ≤ 25 °C on standard FR4 PCB, with non-repetitive peak reverse current rated at 1.0 A (t_p = 100 µs), and junction-to-solder-point thermal resistance of 50 K/W - optimized for reflow-soldered surface-mount layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z (nominal)	27 V; precise regulation point at 5 mA test current, with min/max bounds 26.19–27.53 V
Tolerance	±2 % (B-series); ensures tight V_Z binning for high-accuracy reference circuits
I_R @ V_R = 21 V	≤150 µA; low leakage enables stable biasing in high-impedance networks
r_dif	≤150 Ω @ I_Z = 5 mA; low dynamic impedance maintains regulation under load variation
P_tot	365 mW @ T_amb ≤ 25 °C; defines continuous DC power handling on standard FR4 PCB
P_ZSM	40 W (t_p = 100 µs); supports transient overvoltage suppression without failure
AEC-Q101	Qualified; validated for automotive electronics per stress-test requirements

Pinout & Package

SOD123 plastic surface-mount package: 2.80 mm × 1.70 mm footprint, 1.3 mm height, cathode-marked with bar, optimized for automated placement and reflow soldering per IPC-7351B.

Pin/Terminal	Circuit Role	Design Meaning
1 (K)	Cathode	Connected to regulated output node; marking bar identifies this terminal
2 (A)	Anode	Connected to ground or lower-potential rail; reverse-biased during Zener operation

Key Features

Feature	Design Value
Low differential resistance	r_dif ≤ 150 Ω ensures minimal output voltage shift under varying load current
Stable temperature coefficient	+21.0 to +23.4 mV/K enables predictable V_Z drift in automotive thermal environments
AEC-Q101 qualification	Validated for automotive applications including engine control units and body electronics
Small SOD123 footprint	Reduces PCB area by >40 % vs. DO-35; compatible with high-density routing and automated assembly
High surge capability	Withstands 40 W non-repetitive pulses (100 µs), supporting ESD and load-dump protection

Applications

Automotive Body Control Module

Industrial Sensor Signal Conditioning

Use Scenario: Voltage reference for analog-to-digital conversion of cabin temperature and humidity sensors.

IC Role / Device Role / Timing Role: Zener diode provides stable 27 V reference for op-amp biasing and ADC input scaling.

Use Value: ±2 % V_Z tolerance and +22.2 mV/K temperature coefficient ensure <±1.5 % full-scale error over −40 °C to +125 °C operating range.

Use Scenario: Overvoltage clamp protecting 24 V industrial I/O circuitry from transients.

IC Role / Device Role / Timing Role: Shunts excess energy during 24 V bus surges above 27 V threshold.

Use Value: 40 W non-repetitive pulse rating absorbs 100 µs load-dump spikes without degradation.

Power Supply Feedback Network

LED Driver Current Reference

Use Scenario: Precision voltage reference in isolated flyback converter feedback loop.

IC Role / Device Role / Timing Role: Sets regulation threshold for optocoupler-driven primary-side controller.

Use Value: Low r_dif (≤150 Ω) minimizes output voltage deviation under line/load changes.

Use Scenario: Stable bias reference for constant-current LED driver ICs in automotive lighting.

IC Role / Device Role / Timing Role: Supplies fixed reference voltage to current-sense amplifier inputs.

Use Value: AEC-Q101 qualification and 150 µA max I_R at 21 V ensure long-term stability in high-temperature headlamp modules.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C27	Same 27 V nominal V_Z, but ±5 % tolerance and SOT23 package (larger R_th(j-a) = 450 K/W)	Limited to non-automotive consumer applications due to lack of AEC-Q101 qualification	Select when cost sensitivity outweighs automotive compliance and thermal performance
MMSZ5256B	27 V nominal V_Z, ±5 % tolerance, SOD123 package, but only 500 mW P_ZSM and no AEC-Q101 rating	Not suitable for automotive transients; lower surge margin limits use in harsh environments	Prefer for low-volume prototyping where qualification and 40 W surge are not required

Compared with BZX84-C27 and MMSZ5256B, PDZ27BGWX offers tighter ±2 % tolerance, AEC-Q101 validation, and superior 40 W transient handling - making it the only choice for production automotive voltage reference and clamp functions demanding long-term reliability.

Availability

PDZ27BGWX is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, isolated power supply feedback networks, and LED driver reference circuits requiring stable component supply with guaranteed long-term availability.

Supply support for PDZ27BGWX 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.

PDZ27BGWX belongs to the PDZ-GW series - engineered specifically for precision voltage regulation in automotive and industrial applications where AEC-Q101 compliance, tight V_Z tolerance, and robust surge immunity are mandatory.

FAQ

What is the maximum continuous reverse current the PDZ27BGWX can sustain at 27 V?

The PDZ27BGWX is not rated for continuous conduction at its Zener voltage; it is designed for regulated reverse-bias operation at I_Z = 5 mA (typical). At V_R = 21 V, reverse current is ≤150 µA. Sustained current above 200 mA forward or beyond P_tot = 365 mW violates absolute maximum ratings and risks thermal runaway.

How does the +22.2 mV/K temperature coefficient affect regulation accuracy over temperature?

At 27 V nominal V_Z, a +22.2 mV/K coefficient yields ~2.22 V drift over a 100 K (−55 °C to +45 °C) range - approximately ±4.1 % of nominal V_Z. This is factored into design margins for automotive applications; actual drift is linear and predictable, enabling compensation in closed-loop systems.

Is the SOD123 package lead-free and RoHS-compliant?

Yes, PDZ27BGWX uses lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The SOD123 package is fully compatible with lead-free reflow profiles per J-STD-020, with peak temperature up to 260 °C.

Can PDZ27BGWX replace PDZ27B in existing designs?

Yes - PDZ27BGWX is a direct replacement for PDZ27B, sharing identical electrical specifications, SOD123 package, pinout, and AEC-Q101 qualification. The "X" suffix denotes tape-and-reel packaging per EIA-481 standard; no layout or schematic changes are required.

PDZ27BGWX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: PDZ-GW

Package/Case:: SOD-123

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 27 V

Tolerance:: ±2.48%

Power - Max:: 365 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 21 V

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 100 mA

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123

PDZ27BGWX FAQ

1.How can I place an order for PDZ27BGWX through Aetrix?

Please submit a Request for Quotation (RFQ) for PDZ27BGWX 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 PDZ27BGWX reliable?

The price and inventory of PDZ27BGWX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ27BGWX is usually 5 days.

3.What payment methods are accepted for PDZ27BGWX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ27BGWX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDZ27BGWX?

PDZ27BGWX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDZ27BGWX 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 PDZ27BGWX?

For technical support, including PDZ27BGWX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ27BGWX requirements.

6.How does Aetrix verify that PDZ27BGWX is sourced from the original manufacturer or authorized distributors?

All PDZ27BGWX 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 PDZ27BGWX meets industry standards.

7.What is the process for return or replacement of PDZ27BGWX?

All PDZ27BGWX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ27BGWX, 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 PDZ27BGWX part is unused and in its original packaging.

Return procedure for PDZ27BGWX:

1.Submit a request within 90 days.

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

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