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Nexperia USA Inc. PZU84-B5V1-QR
- Part No.:
- PZU84-B5V1-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-B5V1-QR.pdf
- Description:
- DIODE ZENER 5.09V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,888
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Product details
Overview
PZU84-B5V1-QR from Nexperia is a 5.1 V ±2 % tolerance Zener voltage regulator diode in SOT23 package, designed for precision voltage reference and overvoltage protection in automotive power rails. It delivers 250 mW total power dissipation, 250 Ω typical differential resistance at 5 mA, and 1.5 μA max reverse current at 3 V, operating across −55 °C to +150 °C ambient range.
For engineers reviewing the PZU84-B5V1-QR datasheet, PZU84-B5V1-QR pinout, PZU84-B5V1-QR application, or PZU84-B5V1-QR equivalent, key selection criteria include AEC-Q101 qualification, low leakage (≤2 μA at VR = 3 V), hard breakdown knee, and thermal resistance of 330 K/W junction-to-solder-point - critical for under-hood ECU voltage stabilization and sensor biasing.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a nominal 5.1 V regulation voltage at IZ = 5 mA. Its differential resistance of 250 Ω (typ) and temperature coefficient of −2.7 mV/K (at IZ = 5 mA) enable stable reference performance across automotive temperature extremes.
The device features a hard breakdown knee and very low leakage current (<2 μA at VR = 3 V), distinguishing it from the C-series variants optimized for switching noise reduction. It is qualified per AEC-Q101 and rated for 150 °C junction temperature, supporting use in engine control modules and ADAS power supervision circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.80 V to 5.40 V at IZ = 5 mA - tight ±2 % tolerance ensures accurate 5.1 V rail clamping |
| Differential Resistance rdif | 250 Ω (typ) at IZ = 5 mA - low impedance maintains regulation stability under load transients |
| Reverse Current IR | ≤2 μA at VR = 3 V - ultra-low leakage preserves battery-backed circuit integrity |
| Total Power Dissipation Ptot | 250 mW on FR4 PCB - sufficient for low-power biasing and protection without heatsinking |
| Junction Temperature Tj | −55 °C to +150 °C - meets automotive under-hood thermal requirements |
| Thermal Resistance Rth(j-sp) | 330 K/W junction-to-solder-point - enables reliable thermal coupling to PCB copper |
| AEC-Q101 Qualified | Yes - certified for automotive discrete semiconductor stress testing per Rev. D |
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 placement and reflow soldering on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Forward-biased terminal; connects to lower-potential node during regulation |
| 2 (n.c.) | Not connected | Internally unconnected; no electrical function - must remain floating |
| 3 (Cathode) | Cathode connection | Reverse-biased terminal; connects to regulated voltage rail or protection node |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition enables precise voltage clamping without soft saturation |
| Very low leakage current | ≤2 μA at VR = 3 V - minimizes standby power loss in always-on automotive subsystems |
| Low dynamic impedance | 250 Ω (typ) at 5 mA - improves line/load regulation accuracy in feedback references |
| AEC-Q101 qualification | Qualified for automotive applications - validated for temperature cycling, HTRB, and ESD robustness |
| SOT23 footprint compatibility | Standard 3-pin SOT23 layout - supports drop-in replacement and high-density PCB routing |
Applications
| Engine Control Unit (ECU) Reference | Automotive Sensor Biasing |
|---|---|
Use Scenario: Providing stable 5.1 V reference for microcontroller ADC and analog front-end in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Zener voltage reference diode - establishes precision DC bias point independent of supply ripple. Use Value: Tight ±2 % tolerance and −2.7 mV/K tempco ensure <±10 mV drift over −40 °C to +125 °C, meeting ASIL-B functional safety margin requirements. |
Use Scenario: Biasing Hall-effect and pressure sensors in transmission control modules. IC Role / Device Role / Timing Role: Low-leakage voltage clamp - protects sensor IC inputs from transient overvoltage while maintaining quiescent current <2 μA. Use Value: ≤2 μA reverse current at 3 V prevents signal path loading, preserving sensor output accuracy and enabling battery-operated diagnostic modes. |
| Infotainment Power Rail Clamp | ADAS Camera Module Protection |
Use Scenario: Clamping 5 V USB-powered infotainment system rails against load-dump surges. IC Role / Device Role / Timing Role: Overvoltage protection element - shunts excess energy during ISO 7637-2 pulse 5a events. Use Value: 40 W non-repetitive peak reverse power rating (tp = 100 μs) absorbs surge energy without degradation, extending system lifetime. |
Use Scenario: Protecting image sensor and ISP power pins in rear-view and surround-view camera modules. IC Role / Device Role / Timing Role: Precision rail stabilizer - maintains 5.1 V bias during cold-cranking (4.5 V–16 V battery swing). Use Value: Hard breakdown knee and 250 Ω rdif ensure fast response to input dips, preventing image corruption during engine start-up. |
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-C5V1,115 | ±5 % tolerance, higher leakage (≤5 μA at VR = 3 V), no AEC-Q101 qualification | General-purpose industrial/commercial use only; not suitable for automotive deployment | Select when cost sensitivity outweighs automotive qualification and leakage requirements |
| MMSZ5231B-TP | ±5 % tolerance, 600 mW Ptot, SOD-123 package (larger footprint), no AEC-Q101 | Higher power handling but incompatible SMT footprint and unqualified for automotive | Choose only if board redesign permits larger package and automotive compliance is not required |
Compared with BZX84-C5V1,115 and MMSZ5231B-TP, PZU84-B5V1-QR provides tighter tolerance, lower leakage, and AEC-Q101 certification - making it the sole option for production automotive systems requiring functional safety-aligned voltage reference stability and long-term reliability.
Availability
PZU84-B5V1-QR is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, infotainment power management, and automotive sensor biasing requiring stable component supply with full traceability and automotive-grade lifecycle support.
Supply support for PZU84-B5V1-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with core R&D and manufacturing in Europe and Asia.
The PZU84-Q series belongs to Nexperia's automotive-qualified Zener regulator portfolio, engineered specifically for precision voltage reference and overvoltage protection in harsh-environment vehicle electronics.
FAQ
What is the maximum reverse voltage this Zener can regulate without damage?
The PZU84-B5V1-QR is rated for a maximum non-repetitive peak reverse power dissipation of 40 W at tp = 100 μs, with absolute maximum reverse voltage limited by its 5.4 V upper VZ bound and 150 °C junction temperature rating. Continuous operation above 5.4 V risks thermal runaway unless current is strictly limited by external series resistance.
Does the 'QR' suffix indicate tape-and-reel packaging?
Yes - the 'QR' suffix denotes that PZU84-B5V1-QR is supplied in 3,000-unit tape-and-reel format compatible with standard SMT pick-and-place equipment. This packaging aligns with Nexperia's automotive logistics standards and supports JIT manufacturing workflows.
How does the 'B' series differ from the 'C' series in the PZU84-Q family?
The 'B' series (e.g., PZU84-B5V1-QR) features very low leakage current and a hard breakdown knee for precision regulation, whereas the 'C' series prioritizes faster switching and lower noise via intentional leakage increase - making 'B' optimal for reference applications and 'C' better suited for transient suppression.
Can this Zener be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal instability when paralleled. For higher power needs, use a single higher-rated device or implement active regulation; do not parallel PZU84-B5V1-QR units.
PZU84-B5V1-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):
- 5.09 V
- Tolerance:
- ±2.16%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1.5 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-B5V1-QR FAQ
1.How can I place an order for PZU84-B5V1-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-B5V1-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-B5V1-QR reliable?
The price and inventory of PZU84-B5V1-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-B5V1-QR is usually 5 days.
3.What payment methods are accepted for PZU84-B5V1-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-B5V1-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-B5V1-QR?
PZU84-B5V1-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-B5V1-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-B5V1-QR?
For technical support, including PZU84-B5V1-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-B5V1-QR requirements.
6.How does Aetrix verify that PZU84-B5V1-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-B5V1-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-B5V1-QR meets industry standards.
7.What is the process for return or replacement of PZU84-B5V1-QR?
All PZU84-B5V1-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-B5V1-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-B5V1-QR part is unused and in its original packaging.
Return procedure for PZU84-B5V1-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-B5V1-QR Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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