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Nexperia USA Inc. PDZ2.7B-QF
- Part No.:
- PDZ2.7B-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ2.7B-QF.pdf
- Description:
- DIODE ZENER 2.7V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,975
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Product details
Overview
PDZ2.7B-QF 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-QF datasheet, PDZ2.7B-QF pinout, PDZ2.7B-QF application, or PDZ2.7B-QF equivalent, this device supports low-current precision clamping in ECU power rails, sensor biasing, and reference voltage generation where compact size, thermal stability, and automotive-grade reliability are required.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its hard breakdown knee and low dynamic impedance (≤100 Ω at IZ = 5 mA) ensure tight regulation at low currents (0.5–5 mA), while its negative temperature coefficient (−2.0 mV/K) enables predictable drift behavior in ambient ranges up to +150 °C junction temperature.
Designed for surface-mount use on FR4 PCBs with standard footprint, it delivers 130 K/W junction-to-solder-point thermal resistance and derates linearly above 25 °C ambient-reaching zero power at 150 °C per the published curve. The cathode-marked SOD323 package supports reflow and wave soldering per defined land patterns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.69 V to 2.91 V at IZ = 5 mA - defines precise clamping threshold for 2.7 V nominal rail protection |
| Dynamic Resistance (rdif) | ≤100 Ω at IZ = 5 mA - ensures minimal output voltage variation under small current changes |
| Reverse Current (IR) | ≤20 μA at VR = 1.0 V - guarantees low leakage in standby or high-impedance bias networks |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - sets maximum continuous energy handling on standard FR4 board |
| Temperature Coefficient (SZ) | −2.0 mV/K at IZ = 5 mA - quantifies predictable downward voltage shift with rising temperature |
| Junction Temperature (Tj) | +150 °C maximum - enables operation in under-hood automotive environments without derating failure |
| Package | SOD323 (SC-76) - 1.35 mm × 0.8 mm footprint ideal for space-constrained PCB layouts |
Pinout & Package
SOD323 plastic surface-mounted package with 2 leads; cathode identified by marking bar on body.
| 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 reference; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| Hard breakdown knee | Sharp, well-defined Zener transition improves regulation accuracy at low test currents |
| Low leakage current | ≤20 μA at 1.0 V reverse bias minimizes parasitic loading in high-impedance circuits |
| Small outline package | SOD323 footprint (1.35 × 0.8 mm) enables dense routing and automated assembly compatibility |
| ±2 % voltage tolerance | Tight initial calibration reduces need for post-production trimming in reference designs |
Applications
| Automotive ECU Power Rail Clamping | Sensor Bias Voltage Reference |
|---|---|
|
Use Scenario: Protecting microcontroller supply inputs against transient overvoltage in 12 V vehicle systems. IC Role / Device Role / Timing Role: Zener clamping element shunting excess energy to ground during load-dump events. Use Value: Maintains rail integrity below 3.0 V during surges, preventing MCU reset or latch-up without external TVS dependency. |
Use Scenario: Providing stable bias voltage for analog sensors (e.g., pressure, temperature) in cabin modules. IC Role / Device Role / Timing Role: Low-current voltage reference source delivering consistent 2.7 V to sensor excitation circuitry. Use Value: Enables <1 % full-scale error in sensor output due to stable VZ and −2.0 mV/K drift predictability. |
| Low-Power IoT Node Voltage Regulation | Industrial Control Signal Level Shifting |
|
Use Scenario: Regulating supply for BLE/Wi-Fi SoCs operating from coin-cell or energy-harvested sources. IC Role / Device Role / Timing Role: Passive voltage limiter ensuring safe input to LDO or DC-DC converter input stage. Use Value: Draws only ≤20 μA leakage at 1.0 V, preserving battery life while enabling 2.7 V system-level compatibility. |
Use Scenario: Translating 3.3 V logic signals to 2.7 V interface levels in PLC I/O modules. IC Role / Device Role / Timing Role: Clamp diode establishing 2.7 V reference point for level-shifter bias network. Use Value: Provides repeatable 2.7 V threshold with ≤100 Ω dynamic impedance, minimizing signal distortion during fast transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V7 | Same 2.7 V nominal rating, SOD323 package, but ±5 % tolerance and higher rdif (≤150 Ω) | Lacks AEC-Q101 qualification; suitable for industrial, not automotive, use cases | Select when cost sensitivity outweighs automotive compliance and tighter regulation |
| MMSZ4678T1G | 2.7 V rating, SOD123 package (larger footprint), ±5 % tolerance, 500 mW Ptot | Higher power handling but incompatible footprint; requires PCB redesign | Choose only if thermal margin >400 mW is mandatory and layout revision is acceptable |
Compared with BZX384-B2V7 and MMSZ4678T1G, PDZ2.7B-QF offers superior voltage accuracy (±2 % vs. ±5 %), automotive qualification, and optimized thermal performance in the smallest standard SOD323 footprint-making it the preferred choice for space- and reliability-critical 2.7 V regulation.
Availability
PDZ2.7B-QF is available at Aetrix Electronics and suitable for automotive ECUs, sensor interface modules, and low-power IoT nodes requiring stable component supply with AEC-Q101 assurance and SOD323 footprint compatibility.
Supply support for PDZ2.7B-QF 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, reliable discrete and logic devices for automotive, industrial, and consumer markets.
PDZ2.7B-QF belongs to the PDZ-B-Q series of low-power Zener diodes engineered specifically for precision voltage regulation in space-constrained, thermally demanding automotive and industrial applications.
FAQ
What is the maximum reverse current specification for PDZ2.7B-QF at 1.0 V?
The maximum reverse current (IR) is 20 μA at VR = 1.0 V and Tj = 25 °C. This low leakage ensures minimal loading in high-impedance bias networks and preserves battery life in always-on sensor nodes without compromising regulation stability.
Does PDZ2.7B-QF support reflow soldering, and what footprint is recommended?
Yes, PDZ2.7B-QF is qualified for lead-free reflow soldering using the SOD323 footprint defined in Figure 9: 0.6 mm pad length × 0.5 mm pad width, 1.65 mm center-to-center pitch, with 0.95 mm solder mask opening. This matches JEDEC SC-76 standards and ensures robust joint formation.
How does the −2.0 mV/K temperature coefficient affect circuit design?
The negative temperature coefficient means VZ decreases by 2.0 mV per Kelvin rise in junction temperature. Designers must account for this drift in precision references-e.g., a 50 °C rise lowers VZ by 100 mV-by selecting appropriate operating current or adding compensation in feedback paths.
Is PDZ2.7B-QF pin-compatible with other SOD323 Zener diodes like PDZ3.0B-QF?
Yes, all PDZ-B-Q series diodes share identical SOD323 mechanical dimensions and pinout (cathode at Pin 1, anode at Pin 2), enabling direct substitution within the same voltage range without PCB modification-provided thermal and electrical margins remain satisfied.
PDZ2.7B-QF 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-QF FAQ
1.How can I place an order for PDZ2.7B-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ2.7B-QF 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-QF reliable?
The price and inventory of PDZ2.7B-QF 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-QF is usually 5 days.
3.What payment methods are accepted for PDZ2.7B-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ2.7B-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ2.7B-QF?
PDZ2.7B-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ2.7B-QF 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-QF?
For technical support, including PDZ2.7B-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ2.7B-QF requirements.
6.How does Aetrix verify that PDZ2.7B-QF is sourced from the original manufacturer or authorized distributors?
All PDZ2.7B-QF 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-QF meets industry standards.
7.What is the process for return or replacement of PDZ2.7B-QF?
All PDZ2.7B-QF units undergo pre-shipment inspection (PSI). If there is an issue with PDZ2.7B-QF, 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-QF part is unused and in its original packaging.
Return procedure for PDZ2.7B-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ2.7B-QF Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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