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Nexperia USA Inc. PZU84-C2V4-QR
- Part No.:
- PZU84-C2V4-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C2V4-QR.pdf
- Description:
- DIODE ZENER 2.45V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,956
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Product details
Overview
PZU84-C2V4-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 2.4 V nominal breakdown voltage at 5 mA, with 1000 Ω differential resistance, 1.0 μA reverse current at 1.0 V, and AEC-Q101 qualification for automotive power rail stabilization.
For engineers reviewing the PZU84-C2V4-QR datasheet, PZU84-C2V4-QR pinout, PZU84-C2V4-QR application, or PZU84-C2V4-QR equivalent, this part supports precision low-voltage reference generation, ECU supply rail clamping, and sensor biasing where tight voltage tolerance and low leakage are critical.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable 2.4 V regulation across load and line variations. Its hard breakdown knee and very low leakage current (≤1.0 μA at VR = 1.0 V) enable accurate reference performance in low-power analog circuits.
The device features a temperature coefficient of −3.5 mV/K at 5 mA, optimized for minimal drift over −55 °C to +150 °C ambient range. It is qualified per AEC-Q101 and designed for mounting on FR4 PCBs with standard SOT23 footprint and tin-plated copper traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.30 V to 2.60 V at IZ = 5 mA - ensures ±2 % tolerance for precise low-voltage reference |
| Differential Resistance rdif | 1000 Ω max at IZ = 5 mA - defines regulation stiffness under small-signal load changes |
| Reverse Current IR | 1.0 μA max at VR = 1.0 V - enables ultra-low standby power in always-on circuits |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - supports bidirectional protection or dual-use in clamp+rectifier topologies |
| Total Power Dissipation | 250 mW at Tamb = 25 °C - sets maximum continuous DC power handling on standard FR4 layout |
| Junction Temperature | −55 °C to +150 °C - supports operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: SOT23 plastic surface-mount package, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node in reverse-biased Zener configuration; forward conduction path when used as rectifier |
| 2 | Not Connected (n.c.) | Internally unconnected terminal; must remain floating - no PCB trace or thermal pad connection |
| 3 | Cathode (K) | Connects to higher-potential node; primary current entry point during Zener breakdown; solder point defines Rth(j-sp) = 330 K/W |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement of higher-cost references in cost-sensitive automotive sensors without calibration adjustment |
| Hard breakdown knee | Ensures sharp, predictable turn-on at 2.4 V - critical for overvoltage detection and clean threshold triggering |
| Very low leakage current | ≤1.0 μA at 1.0 V reverse bias minimizes quiescent current drain in battery-backed systems |
| AEC-Q101 qualification | Validates robustness against automotive stressors: 1000-cycle temperature cycling, 1000 h HTGB, and mechanical shock |
| SOT23 footprint compatibility | Matches industry-standard reflow and wave soldering footprints (Fig. 10/11), enabling drop-in PCB reuse |
Applications
| Automotive ECU Power Rail Clamp | Low-Voltage Sensor Reference |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V microcontroller supply rails against load dump transients in engine control units. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt excess energy and hold rail voltage within safe limits. Use Value: With 2.4 V nominal VZ, it provides headroom below logic rail while maintaining fast response due to hard knee and low rdif. |
Use Scenario: Providing stable 2.4 V bias for analog front-end amplifiers in tire pressure monitoring sensors. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC reference divider networks and op-amp biasing. Use Value: ±2 % tolerance and −3.5 mV/K tempco ensure <±15 mV total error over −40 °C to +125 °C operating range. |
| USB Port Overvoltage Protection | Industrial PLC Input Conditioning |
Use Scenario: Protecting USB 2.0 data lines and VBUS monitoring circuitry from ESD-induced overvoltage events. IC Role / Device Role / Timing Role: Low-capacitance (450 pF) Zener clamp placed between signal line and ground to divert transient energy. Use Value: 450 pF capacitance at 0 V ensures minimal signal integrity impact on 480 Mbps high-speed data paths. |
Use Scenario: Stabilizing 24 V DC input conditioning stages in programmable logic controller digital input modules. IC Role / Device Role / Timing Role: Pre-regulator element in multi-stage protection networks, limiting voltage fed to downstream TVS and series resistors. Use Value: AEC-Q101 qualification guarantees long-term stability in industrial environments with wide ambient swings and vibration exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C2V4,115 | Same SOT23 package and 2.4 V ±5 % tolerance; higher typical leakage (5 μA at 1 V) and softer knee | Acceptable for non-automotive consumer applications where AEC-Q101 is not required | Select when cost is prioritized over leakage and automotive qualification |
| MMSZ4675T1G | 2.4 V ±5 %, SOD-123 package; 1500 Ω rdif, 500 pF capacitance, no AEC-Q101 rating | Larger footprint and lower thermal performance (Rth(j-a) ≈ 600 K/W vs. 500 K/W) | Choose only if SOD-123 layout is already fixed and automotive compliance is unnecessary |
Compared with BZX84-C2V4,115 and MMSZ4675T1G, PZU84-C2V4-QR delivers tighter tolerance, lower leakage, and automotive qualification - making it the sole choice for safety-critical 2.4 V reference and clamp functions in vehicle ECUs and ADAS subsystems.
Availability
PZU84-C2V4-QR is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and USB port protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PZU84-C2V4-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for automotive power management and signal conditioning where precision, low leakage, and ruggedness are mandatory.
FAQ
What is the maximum continuous Zener current for PZU84-C2V4-QR at 25 °C ambient?
The absolute maximum forward current is 200 mA, but continuous Zener operation is limited by power dissipation. At 25 °C ambient on a standard FR4 PCB, the 250 mW total power rating allows up to 104 mA (250 mW ÷ 2.4 V) before exceeding thermal limits - derating is required above 25 °C per Rth(j-a) = 500 K/W.
Does Pin 2 require PCB connection or thermal treatment?
No - Pin 2 is internally not connected (n.c.) and must remain electrically and thermally isolated. Routing a trace or applying solder paste to Pin 2 violates the specified SOT23 mounting conditions and may cause assembly defects or thermal measurement errors. The device relies solely on Pins 1 and 3 for electrical function and heat transfer.
How does the −3.5 mV/K temperature coefficient affect regulation accuracy over temperature?
At 2.4 V nominal VZ, a −3.5 mV/K coefficient causes approximately −0.42 V drift from −40 °C to +125 °C (165 K × −3.5 mV/K). However, actual variation is bounded by the min/max VZ spec (2.30 V to 2.60 V), so total deviation remains within ±0.10 V across the full automotive range - verified in Table 8 and Fig. 3.
Can PZU84-C2V4-QR be used in bidirectional ESD protection configurations?
No - it is a unidirectional Zener diode with anode and cathode terminals. For bidirectional ESD protection, a pair of back-to-back Zeners or a dedicated TVS diode (e.g., PESD5V0S1BA) is required. Using this part in reverse polarity risks permanent forward conduction damage above 0.9 V, as it lacks symmetric breakdown capability.
PZU84-C2V4-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):
- 2.45 V
- Tolerance:
- ±6.12%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 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-C2V4-QR FAQ
1.How can I place an order for PZU84-C2V4-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C2V4-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-C2V4-QR reliable?
The price and inventory of PZU84-C2V4-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-C2V4-QR is usually 5 days.
3.What payment methods are accepted for PZU84-C2V4-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C2V4-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C2V4-QR?
PZU84-C2V4-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C2V4-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-C2V4-QR?
For technical support, including PZU84-C2V4-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C2V4-QR requirements.
6.How does Aetrix verify that PZU84-C2V4-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-C2V4-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-C2V4-QR meets industry standards.
7.What is the process for return or replacement of PZU84-C2V4-QR?
All PZU84-C2V4-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C2V4-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-C2V4-QR part is unused and in its original packaging.
Return procedure for PZU84-C2V4-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C2V4-QR Tags
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