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Nexperia USA Inc. PZU84-B3V0-QR
- Part No.:
- PZU84-B3V0-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-B3V0-QR.pdf
- Description:
- DIODE ZENER 3.08V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,105
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Product details
Overview
PZU84-B3V0-Q from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, providing 3.0 V nominal regulation at 5 mA with 95 Ω differential resistance and ≤1.0 μA reverse leakage at VR = 1.0 V, used for precision voltage reference and overvoltage protection in automotive power rails.
For engineers reviewing the PZU84-B3V0-Q datasheet, PZU84-B3V0-Q pinout, PZU84-B3V0-Q application, or PZU84-B3V0-Q equivalent, this device supports AEC-Q101-compliant designs requiring stable low-voltage regulation, low dynamic impedance at low bias currents, and hard breakdown knee characteristics per AN90031.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 3.0 V nominal working voltage (2.80–3.20 V range), optimized for low-current regulation (IZ = 0.5 mA to 5 mA) and exhibits a hard breakdown knee due to its B-series process variant. Its thermal resistance from junction to ambient is 500 K/W on standard FR4 PCB.
The device delivers 95 Ω typical differential resistance at IZ = 5 mA and −3.5 to 0.0 mV/K temperature coefficient across 25–150 °C, enabling stable reference performance in automotive ambient conditions up to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.0 V (min 2.80 V, max 3.20 V at IZ = 5 mA); defines precise clamping threshold for 3.3 V rail protection |
| Tolerance | ±2 %; enables tight voltage margin control in safety-critical automotive sensing circuits |
| Differential Resistance | 95 Ω typ. at IZ = 5 mA; ensures minimal output voltage shift under load transients |
| Reverse Leakage Current | ≤1.0 μA at VR = 1.0 V; reduces standby power loss in always-on vehicle modules |
| Power Dissipation | 250 mW max (FR4 PCB, 70 μm Cu); supports continuous operation in compact ECU layouts |
| Junction Temperature | −55 °C to +150 °C; qualified for under-hood automotive environments per AEC-Q101 |
| Package | SOT23 (2.9 mm × 1.3 mm × 1.0 mm); enables high-density placement on space-constrained PCBs |
Pinout & Package
SOT23 plastic surface-mounted package with 1.9 mm pin pitch, 3-terminal configuration, and standard footprint per Fig. 10 (reflow) and Fig. 11 (wave soldering).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node during regulation |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or pad required |
| 3 | Cathode (K) | Reverse-biased terminal; ties to regulated voltage node and current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, predictable conduction onset at 3.0 V-critical for accurate overvoltage detection |
| Low dynamic impedance at low current | 95 Ω at 5 mA ensures stable regulation even with microamp-level bias sources |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity testing, and mechanical shock |
| Very low leakage current | ≤1.0 μA at 1.0 V reverse bias minimizes quiescent drain in battery-backed systems |
| E24 voltage coverage | Part of 34-device series spanning 2.4 V–51 V-supports standardized BOM consolidation |
Applications
| Engine Control Unit (ECU) Sensor Reference | Automotive Infotainment Power Sequencing |
|---|---|
Use Scenario: Provides stable 3.0 V reference for analog-to-digital conversion of throttle position and coolant temperature sensors. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision bias point for signal conditioning amplifiers. Use Value: ±2 % tolerance and −3.5 to 0.0 mV/K TC ensure <±15 mV drift over −40 °C to +125 °C operating range. |
Use Scenario: Clamps 3.3 V supply rail during hot-swap events in head unit power management. IC Role / Device Role / Timing Role: Overvoltage protection element absorbing transient energy before LDO input stage. Use Value: 40 W non-repetitive peak reverse power dissipation handles 100 μs surges without degradation. |
| Body Control Module (BCM) Wake-Up Circuit | ADAS Camera Module Voltage Clamp |
Use Scenario: Regulates standby voltage for CAN transceiver wake-up logic in low-power sleep mode. IC Role / Device Role / Timing Role: Low-leakage Zener maintaining defined threshold for wake interrupt generation. Use Value: ≤1.0 μA IR at 1.0 V enables sub-10 μA system standby current compliance. |
Use Scenario: Protects image sensor analog front-end from ESD-induced overvoltage on 3.0 V bias line. IC Role / Device Role / Timing Role: Fast-response clamp suppressing >2 kV HBM transients per IEC 61000-4-2. Use Value: Hard breakdown knee ensures clamping initiates within 1 ns of threshold breach. |
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-C3V0 | ±5 % tolerance, 100 Ω rdif at 5 mA, no AEC-Q101 qualification | General-purpose industrial use only; not rated for automotive temperature or reliability stress | Select when cost sensitivity outweighs automotive qualification and tighter tolerance requirements |
| MMSZ4684T1G | ±5 % tolerance, 130 Ω rdif at 20 mA, 500 mW Ptot, SOD-123 package | Larger footprint and higher power rating-suited for higher-current regulation but less dense layout | Choose for legacy designs using SOD-123 or where 500 mW dissipation is required beyond 250 mW limit |
Compared with BZX84-C3V0 and MMSZ4684T1G, PZU84-B3V0-Q uniquely combines AEC-Q101 qualification, ±2 % tolerance, SOT23 miniaturization, and hard-knee behavior-making it the only option for new automotive designs demanding precision, reliability, and space efficiency simultaneously.
Availability
PZU84-B3V0-Q is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera modules requiring stable component supply with automotive-grade reliability and traceable sourcing.
Supply support for PZU84-B3V0-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 global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on automotive, industrial, and mobile applications.
The PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for automotive voltage reference and protection functions where precision, low leakage, and thermal robustness are mandatory.
FAQ
What is the maximum reverse voltage that PZU84-B3V0-Q can safely clamp in continuous operation?
The device is rated for continuous reverse operation up to its nominal Zener voltage of 3.0 V (2.80–3.20 V range). Sustained reverse bias above 3.20 V exceeds specification and risks thermal runaway. Absolute maximum reverse voltage is not defined-operation must remain within the working voltage band at specified test current (5 mA) and power limit (250 mW).
Does Pin 2 require PCB connection or grounding?
No. Pin 2 is internally not connected (n.c.) and must remain electrically floating-no PCB trace, pad, or via should be assigned to it. Connecting Pin 2 may compromise device reliability or cause unintended current paths, as confirmed by Nexperia's package outline (Fig. 9) and pinning table.
How does the −3.5 to 0.0 mV/K temperature coefficient affect regulation accuracy over temperature?
Over −40 °C to +125 °C, this coefficient produces ≤51 mV total drift (165 K × 0.31 mV/K avg), resulting in <±1.7 % deviation from 3.0 V nominal. This is verified in Fig. 3 and Table 8, making it suitable for applications where reference stability within ±20 mV is acceptable across full automotive ambient range.
Can PZU84-B3V0-Q replace older PZU5 series Zeners in existing designs?
No direct drop-in replacement exists: PZU84-B3V0-Q uses SOT23 with n.c. Pin 2, while PZU5 series uses SOD-323 with two active terminals. Layout, thermal design, and bias network must be revalidated. Electrical parameters differ-PZU5-B3V0 has 110 Ω rdif and ±5 % tolerance-so functional equivalence requires circuit-level verification.
PZU84-B3V0-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):
- 3.08 V
- Tolerance:
- ±4.06%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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-B3V0-QR FAQ
1.How can I place an order for PZU84-B3V0-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-B3V0-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-B3V0-QR reliable?
The price and inventory of PZU84-B3V0-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-B3V0-QR is usually 5 days.
3.What payment methods are accepted for PZU84-B3V0-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-B3V0-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-B3V0-QR?
PZU84-B3V0-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-B3V0-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-B3V0-QR?
For technical support, including PZU84-B3V0-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-B3V0-QR requirements.
6.How does Aetrix verify that PZU84-B3V0-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-B3V0-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-B3V0-QR meets industry standards.
7.What is the process for return or replacement of PZU84-B3V0-QR?
All PZU84-B3V0-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-B3V0-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-B3V0-QR part is unused and in its original packaging.
Return procedure for PZU84-B3V0-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-B3V0-QR Tags
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