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Nexperia USA Inc. PDZ2.7B-QZ
- Part No.:
- PDZ2.7B-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ2.7B-QZ.pdf
- Description:
- DIODE ZENER 2.7V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,485
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Product details
Overview
PDZ2.7B-Q from Nexperia is a single Zener diode in SOD323 (SC-76) package, rated for 2.69 V to 2.91 V nominal Zener voltage at 5 mA, with ±2 % tolerance, 400 mW total power dissipation, and qualified per AEC-Q101 for automotive voltage regulation.
For engineers reviewing the PDZ2.7B-Q datasheet, PDZ2.7B-Q pinout, PDZ2.7B-Q application, or PDZ2.7B-Q equivalent, this device serves as a low-leakage, hard-knee Zener reference in compact SMD designs requiring stable 2.7 V clamping or biasing under low-current conditions.
Technical Context
This Zener diode operates with a sharp breakdown knee and low dynamic impedance (100 Ω max at IZ = 5 mA), enabling precise voltage reference in low-power analog circuits. Its −2.0 mV/K temperature coefficient at 5 mA supports predictable thermal drift in automotive ambient ranges.
Designed for surface-mount use on FR4 PCBs with standard footprint, it delivers 440 pF capacitance at 0 V and withstands non-repetitive peak reverse current up to 8.0 A (100 µs pulse), making it suitable for transient suppression and precision biasing in space-constrained modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.69 V to 2.91 V at IZ = 5 mA - defines clamping threshold for 2.7 V nominal regulation |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA - ensures minimal voltage shift under load variation |
| Reverse Current (IR) | ≤20 µA at VR = 1.0 V - enables low-quiescent-power standby bias networks |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - supports continuous operation on standard FR4 PCB without heatsinking |
| Thermal Resistance (Rth(j-sp)) | 130 K/W junction-to-solder-point - allows accurate thermal modeling for board-level reliability |
| Capacitance (Cd) | 440 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering capability in signal paths |
| Temperature Coefficient (SZ) | −2.0 mV/K at IZ = 5 mA - quantifies predictable negative drift for compensation design |
Pinout & Package
PDZ2.7B-Q uses the SOD323 (SC-76) plastic surface-mounted package: 2-terminal, ultra-compact (1.35 mm × 0.8 mm × 0.45 mm), cathode-marked with a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Hard breakdown knee | Enables clean, repeatable turn-on behavior critical for precision reference and overvoltage detection |
| Low leakage at low VR | 20 µA max at 1.0 V reverse bias reduces standby current in battery-powered sensor nodes |
| Small SOD323 footprint | Minimizes PCB area in dense layouts such as ADAS camera modules and engine control units |
| Stable −2.0 mV/K TC | Supports first-order thermal compensation in analog front-ends without external circuitry |
Applications
| Automotive Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 2.7 V reference for MEMS pressure sensor signal conditioning in engine bay modules. IC Role / Device Role / Timing Role: Zener voltage reference and bias current source for op-amp input stage. Use Value: Maintains <±1.5% output accuracy across −40 °C to +125 °C due to AEC-Q101 qualification and known TC. |
Use Scenario: Clamping D+ line voltage during hot-plug events in USB 2.0 automotive infotainment ports. IC Role / Device Role / Timing Role: Low-capacitance (440 pF), fast-response overvoltage protector. Use Value: Limits transient overshoot to ≤3.0 V without distorting 480 Mbps data signals. |
| Low-Power MCU Reset Circuit | Industrial Analog Input Protection |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in battery-backed telematics units. IC Role / Device Role / Timing Role: Precision Zener element in RC-based reset generator. Use Value: Delivers sub-10 µs response to supply droop with <20 µA leakage preserving battery life. |
Use Scenario: Protecting 12-bit ADC inputs from ESD and surge in programmable logic controller analog modules. IC Role / Device Role / Timing Role: Front-end clamp limiting input to 2.91 V maximum. Use Value: Survives 8 kV contact discharge (IEC 61000-4-2) while adding <0.5 LSB error at full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V7 | Same 2.7 V nominal, but ±5 % tolerance and higher rdif (120 Ω); SOD323 package | Lacks AEC-Q101 qualification; not recommended for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and tighter tolerance needs |
| MMSZ4678T1G | 2.7 V nominal, ±5 % tolerance, 500 mW Ptot, SOD123 package (larger footprint) | Higher power rating but 30 % larger PCB area; no AEC-Q101 certification | Choose only if thermal margin >400 mW is required and board space permits SOD123 layout |
Compared with BZX384-B2V7 and MMSZ4678T1G, PDZ2.7B-Q offers superior automotive qualification, tighter ±2 % tolerance, lower dynamic impedance, and optimized SOD323 size-making it the preferred choice for space-constrained, thermally demanding automotive voltage references.
Availability
PDZ2.7B-Q is available at Aetrix Electronics and suitable for automotive sensor biasing, USB port overvoltage clamping, and low-power MCU reset circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for PDZ2.7B-Q 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 leading global semiconductor manufacturer specializing in high-performance, reliable discrete and logic devices, with core expertise in automotive-qualified components.
PDZ2.7B-Q belongs to the PDZ-B-Q series of AEC-Q101-qualified Zener diodes engineered specifically for precision voltage regulation and transient protection in harsh automotive environments.
FAQ
What is the maximum reverse voltage (VR) before significant leakage occurs?
At VR = 1.0 V, reverse current is guaranteed ≤20 µA. Leakage rises sharply above this point; for stable regulation, operation must remain within the specified Zener region (≥2.69 V). The 1.0 V value is a test condition-not an operational limit-and does not indicate functional clamping behavior.
Can PDZ2.7B-Q be used in parallel for higher power handling?
No-Zener diodes exhibit manufacturing spread in VZ, causing current imbalance. Even with matched units, thermal runaway risk remains due to negative TC. For >400 mW requirements, select a single higher-rated Zener or implement active regulation instead.
Is the SOD323 footprint compatible with reflow soldering per JEDEC J-STD-020?
Yes-the device is qualified for standard lead-free reflow profiles (peak 260 °C, 20–40 sec). Figure 9 in the datasheet specifies exact solder land dimensions (0.6 mm × 0.5 mm, 1.65 mm pitch), and thermal resistance values assume this standard FR4 mounting configuration.
How does the −2.0 mV/K temperature coefficient affect long-term stability?
Over a −40 °C to +125 °C range, VZ shifts by approximately −330 mV, resulting in ~12 % relative change. This is fully characterized and repeatable; designers compensate using resistor dividers or TC-matched components-not a reliability defect but a defined parametric behavior.
PDZ2.7B-QZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B-Q
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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-323
PDZ2.7B-QZ FAQ
1.How can I place an order for PDZ2.7B-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ2.7B-QZ 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 PDZ2.7B-QZ reliable?
The price and inventory of PDZ2.7B-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ2.7B-QZ is usually 5 days.
3.What payment methods are accepted for PDZ2.7B-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ2.7B-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ2.7B-QZ?
PDZ2.7B-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ2.7B-QZ 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 PDZ2.7B-QZ?
For technical support, including PDZ2.7B-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ2.7B-QZ requirements.
6.How does Aetrix verify that PDZ2.7B-QZ is sourced from the original manufacturer or authorized distributors?
All PDZ2.7B-QZ 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 PDZ2.7B-QZ meets industry standards.
7.What is the process for return or replacement of PDZ2.7B-QZ?
All PDZ2.7B-QZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ2.7B-QZ, 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 PDZ2.7B-QZ part is unused and in its original packaging.
Return procedure for PDZ2.7B-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ2.7B-QZ Tags
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MM5Z5V1ST1G
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