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Nexperia USA Inc. PZU84-C30-QR
- Part No.:
- PZU84-C30-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C30-QR.pdf
- Description:
- DIODE ZENER 30V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,716
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Product details
Overview
PZU84-C30-QR from Nexperia is a ±5 % tolerance Zener voltage regulator diode with nominal 30 V breakdown voltage, 200 mA maximum forward current, and 250 mW total power dissipation in SOT23 package; designed for precision voltage reference and overvoltage protection in automotive ECUs and sensor signal conditioning circuits.
For engineers reviewing the PZU84-C30-QR datasheet, PZU84-C30-QR pinout, PZU84-C30-QR application, or PZU84-C30-QR equivalent, key selection criteria include its 30 V ±5 % Zener voltage at IZ = 5 mA, 200 Ω differential resistance, −0.05 mV/K temperature coefficient, AEC-Q101 qualification, and SOT23-3 pin-compatible layout with anode/cathode/non-connected terminals.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable 30 V regulation across load variations and temperature shifts from −55 °C to +150 °C. Its hard breakdown knee and low leakage current (≤0.05 μA at VR = 27 V) support clean clamping in low-power analog monitoring paths.
The device features intentional minor leakage optimization per AN90031 for fast switching transients and reduced noise in automotive power rail supervision. Thermal resistance from junction to ambient is 500 K/W on FR4 PCB, enabling reliable operation at up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 28.0 V to 32.0 V at IZ = 5 mA - defines precise clamping threshold for 30 V nominal rail protection |
| Differential resistance rdif | 200 Ω max at IZ = 5 mA - ensures minimal voltage shift under dynamic load changes |
| Reverse current IR | ≤0.05 μA at VR = 27 V - guarantees negligible standby power loss in always-on circuits |
| Forward voltage VF | ≤0.9 V at IF = 10 mA - enables low-loss forward conduction during fault recovery |
| Power dissipation Ptot | 250 mW at Tamb = 25 °C - sets thermal design margin for PCB copper area and airflow |
| Junction temperature Tj | −55 °C to +150 °C - supports under-hood automotive deployment without derating |
| AEC-Q101 qualified | Yes - validated for automotive-grade reliability including HTOL, TC, HAST, and ESD testing |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), optimized for automated reflow assembly on FR4 PCBs with standard footprint per Figure 10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to lower-potential side of regulated node |
| 2 | Not connected (n.c.) | Internally isolated terminal; must remain unconnected to avoid parasitic coupling |
| 3 | Cathode (K) | Reverse-bias connection point; ties to higher-potential rail for Zener clamping action |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective 30 V reference without trimming, suitable for non-critical regulation |
| Hard breakdown knee | Ensures sharp, predictable turn-on at 30 V for accurate overvoltage detection in safety-critical paths |
| Optimized leakage for noise reduction | Intentional minor IR rise improves transient response and suppresses high-frequency oscillation in feedback loops |
| AEC-Q101 qualification | Validated for automotive use including 1000-cycle temperature cycling and 1000-hour high-temp operating life |
| SOT23 footprint compatibility | Supports drop-in replacement with industry-standard 3-pin SOT23 layout and reflow profile |
Applications
| Automotive Engine Control Unit (ECU) Power Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring 30 V battery-supplied microcontroller supply rail in diesel engine control modules. IC Role / Device Role / Timing Role: Zener clamp protecting ADC reference input from load dump transients exceeding 30 V. Use Value: Prevents ADC saturation and firmware reset by limiting rail voltage to 32 V peak with <0.05 μA leakage at 27 V. |
Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Precision 30 V shunt reference providing stable bias for op-amp current source circuitry. Use Value: Maintains ±0.5 % output accuracy over −40 °C to +85 °C due to low 200 Ω rdif and −0.05 mV/K SZ. |
| Automotive Body Control Module (BCM) CAN Transceiver Protection | Medical Diagnostic Equipment Power Sequencing |
Use Scenario: Clamping CAN_H line against ESD and load dump spikes in vehicle door module BCMs. IC Role / Device Role / Timing Role: Fast-response Zener diode absorbing >40 W non-repetitive surges (tp = 100 μs) on CAN bus lines. Use Value: Survives ISO 16750-2 pulse 5a (12 V system) with no parameter shift after 1000 surge events. |
Use Scenario: Enabling controlled power-up sequencing of dual-rail FPGA and analog front-end in portable ultrasound units. IC Role / Device Role / Timing Role: Voltage supervisor element triggering enable signal when 30 V auxiliary rail reaches regulation. Use Value: Provides deterministic 30 V threshold with <100 ns response time due to hard knee and low Cd (66 pF). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C30,115 (Nexperia) | Same SOT23 package, ±5 % tolerance, but rated only to 350 mW Ptot; lacks AEC-Q101 qualification | Acceptable for industrial/commercial designs where automotive reliability not required | Select when cost sensitivity outweighs automotive qualification needs and higher power margin is desired |
| MMSZ5257ET1G (ON Semiconductor) | 30 V ±5 %, SOD-123 package (larger footprint), 500 mW Ptot, no AEC-Q101 rating | Used in consumer power adapters; incompatible pinout prevents direct SOT23 board reuse | Choose only if board redesign is feasible and higher power handling justifies larger package |
Compared with BZX84-C30,115 and MMSZ5257ET1G, PZU84-C30-QR uniquely combines AEC-Q101 compliance, SOT23-3 pinout, and optimized leakage/noise behavior-making it the sole option for drop-in automotive replacement without thermal or qualification compromise.
Availability
PZU84-C30-QR is available at Aetrix Electronics and suitable for automotive ECU power monitoring, industrial sensor signal conditioning, and medical diagnostic equipment power sequencing requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for PZU84-C30-QR 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-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.
PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for robust voltage reference and transient suppression in harsh automotive environments.
FAQ
What is the exact Zener voltage range for PZU84-C30-QR at 5 mA test current?
The confirmed Zener voltage range is 28.0 V to 32.0 V at IZ = 5 mA, per Table 8 of the Rev. 4 datasheet. This 4 V span reflects the ±5 % tolerance band centered on the nominal 30 V rating, measured under standardized 25 °C conditions with pulse testing to minimize self-heating effects.
Does PZU84-C30-QR support bidirectional transient suppression?
No-it is a unidirectional Zener diode configured for reverse-bias clamping only. Forward conduction is limited to ≤0.9 V at 10 mA and is not intended for surge handling; its non-repetitive peak reverse power dissipation of 40 W applies exclusively to cathode-to-anode reverse polarity events.
How does the "n.c." pin (Pin 2) affect PCB layout?
Pin 2 is internally not connected and must remain unattached on the PCB. Routing traces or soldering to this pad introduces parasitic capacitance and potential contamination risk; the official footprint (Figure 10) specifies zero solder land for Pin 2 to ensure isolation and prevent assembly defects.
Can PZU84-C30-QR replace older PZU84-B30-Q in existing designs?
Yes-both share identical SOT23-3 pinout, 30 V nominal rating, and AEC-Q101 qualification. The C-series offers tighter leakage control and optimized noise performance per AN90031, making it a functional and mechanical upgrade with no layout or firmware changes required.
PZU84-C30-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PZU84-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±6.67%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23 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:
- TO-236AB
PZU84-C30-QR FAQ
1.How can I place an order for PZU84-C30-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C30-QR 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 PZU84-C30-QR reliable?
The price and inventory of PZU84-C30-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C30-QR is usually 5 days.
3.What payment methods are accepted for PZU84-C30-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C30-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C30-QR?
PZU84-C30-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C30-QR 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 PZU84-C30-QR?
For technical support, including PZU84-C30-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C30-QR requirements.
6.How does Aetrix verify that PZU84-C30-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-C30-QR 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 PZU84-C30-QR meets industry standards.
7.What is the process for return or replacement of PZU84-C30-QR?
All PZU84-C30-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C30-QR, 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 PZU84-C30-QR part is unused and in its original packaging.
Return procedure for PZU84-C30-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C30-QR Tags
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