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Nexperia USA Inc. PZU84-C16-QR
- Part No.:
- PZU84-C16-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C16-QR.pdf
- Description:
- DIODE ZENER 16.23V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,061
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Product details
Overview
PZU84-C16-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode with nominal 16 V breakdown voltage, housed in an AEC-Q101-qualified SOT23 package. It delivers low dynamic impedance (80 Ω at IZ = 5 mA), temperature coefficient of +10.4 mV/K, and reverse leakage ≤0.05 μA at 12 V, enabling precision voltage reference and overvoltage clamping in automotive power rails.
For engineers reviewing the PZU84-C16-QR datasheet, PZU84-C16-QR pinout, PZU84-C16-QR application, or PZU84-C16-QR equivalent, key selection criteria include Zener voltage accuracy, low rdif for stable regulation under load transients, AEC-Q101 qualification for under-hood use, and SOT23 thermal resistance (Rth(j-sp) = 330 K/W) for PCB-level thermal management.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain a stable 16 V reference across varying load currents (IZ = 0.5–5 mA). Its hard breakdown knee and low leakage (<0.05 μA at VR = 12 V) support clean voltage clamping without parasitic conduction paths.
The device uses silicon planar technology with optimized doping profiles to achieve ±2 % VZ tolerance and a positive temperature coefficient (+10.4 mV/K), ensuring predictable drift behavior over −55 °C to +150 °C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 15.37 V to 17.09 V at IZ = 5 mA - tight ±2 % tolerance enables accurate 16 V rail stabilization |
| Differential resistance rdif | 80 Ω max at IZ = 5 mA - low impedance minimizes output voltage shift under current load changes |
| Temperature coefficient SZ | +10.4 mV/K - predictable positive drift supports thermal compensation in reference circuits |
| Reverse leakage IR | ≤0.05 μA at VR = 12 V - negligible standby current preserves battery life in always-on automotive modules |
| Total power dissipation Ptot | 250 mW at Tamb = 25 °C on FR4 PCB - defines maximum continuous clamping energy before thermal derating |
| Junction-to-solder-point Rth(j-sp) | 330 K/W - quantifies thermal path efficiency from die to cathode solder joint for layout-driven cooling |
| Non-repetitive peak power PZSM | 40 W for tp = 100 μs - supports transient surge suppression per ISO 7637-2 Pulse 1/2a |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), qualified to AEC-Q101 for automotive reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node during regulation or clamping |
| 2 | Not connected (n.c.) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 | Cathode (K) | Reverse-biased terminal; ties to regulated voltage node and serves as primary thermal path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement of legacy 16 V references without recalibration in ECU voltage monitors |
| AEC-Q101 qualification | Validated for automotive under-hood operation including temperature cycling, humidity, and mechanical shock |
| Hard breakdown knee | Ensures sharp transition into regulation, minimizing ambiguity between forward and reverse conduction states |
| Low dynamic impedance (80 Ω) | Maintains <±100 mV output deviation across 1–5 mA load current steps in feedback-sensing applications |
| Very low leakage (≤0.05 μA) | Eliminates measurable error in high-impedance bias networks used in LIN transceiver reference dividers |
Applications
| Automotive Power Rail Clamping | Engine Control Unit Reference |
|---|---|
|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed microcontroller supply rails in engine control units. IC Role / Device Role / Timing Role: Zener clamp placed between VCC and GND to shunt excess energy above 16 V during ISO 7637-2 Pulse 5a events. Use Value: 40 W non-repetitive peak power rating absorbs 100 μs surges without degradation, preserving MCU uptime. |
Use Scenario: Providing stable 16 V reference for analog-to-digital converter (ADC) biasing in fuel injection timing circuits. IC Role / Device Role / Timing Role: Voltage reference element in resistive divider feeding ADC input, requiring minimal drift over temperature. Use Value: +10.4 mV/K temperature coefficient allows predictable calibration offset correction in firmware. |
| Body Control Module Overvoltage Protection | Infotainment System ESD Clamp |
|
Use Scenario: Protecting LIN bus transceiver power pins against battery overvoltage during alternator regulation faults. IC Role / Device Role / Timing Role: Standby clamping diode tied to VBAT input, conducting only when voltage exceeds 16 V threshold. Use Value: ≤0.05 μA leakage at 12 V prevents measurable current draw in sleep mode, extending battery reserve time. |
Use Scenario: Front-end ESD protection for USB Type-C power delivery lines in head unit power management ICs. IC Role / Device Role / Timing Role: Secondary clamping stage after TVS diode, absorbing residual energy with precise 16 V turn-on. Use Value: 80 Ω differential resistance ensures fast response to sub-10 ns ESD pulses without oscillation or overshoot. |
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-C16-TP | ±5 % tolerance, higher rdif (100 Ω), no AEC-Q101 qualification | Suitable for non-automotive consumer power supplies where cost outweighs precision | Select only if AEC-Q101 compliance and <80 Ω impedance are not required |
| MMSZ5245B-TP | ±5 % tolerance, 16 V nominal, 150 mW Ptot, SOD-123 package | Larger footprint and lower power handling limit clamping capability in space-constrained ECUs | Prefer only when SOT23 mounting is incompatible with existing PCB land pattern |
Compared with BZX84-C16-TP and MMSZ5245B-TP, PZU84-C16-QR provides tighter voltage control, lower dynamic impedance, and automotive-grade reliability-critical for safety-critical voltage monitoring in engine control and ADAS subsystems.
Availability
PZU84-C16-QR is available at Aetrix Electronics and suitable for automotive ECU design, body control module production, and infotainment system development requiring stable component supply with full AEC-Q101 traceability.
Supply support for PZU84-C16-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-certified Zener regulator portfolio, engineered specifically for precision voltage reference and transient clamping in harsh automotive environments.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The PZU84-C16-QR has a nominal Zener voltage of 16 V with a guaranteed range of 15.37 V to 17.09 V at 5 mA test current. Its absolute maximum reverse voltage is defined by its non-repetitive peak power rating of 40 W for 100 μs pulses-not a DC blocking rating. Continuous reverse bias beyond VZ will cause regulation, not failure, provided power dissipation remains within 250 mW limits.
Does this part require external current limiting in series?
Yes-like all Zener diodes, PZU84-C16-QR requires a series current-limiting resistor to set the operating Zener current (typically 1–5 mA). Without it, excessive current would exceed the 250 mW total power dissipation limit and cause thermal runaway. The resistor value is calculated using (VIN − 16 V)/IZ, where IZ is selected based on required regulation stability and rdif performance.
How does the "-QR" suffix differ from "-Q" in ordering?
The "-QR" suffix denotes tape-and-reel packaging per standard SOT23 carrier tape (EIA-481 compliant), with 3,000 units per reel. The base "-Q" designation indicates AEC-Q101 qualification and ±2 % tolerance; "-QR" adds packaging format information but does not alter electrical or reliability specifications. Both share identical Zener characteristics, thermal ratings, and pinout.
Can this diode be used in parallel for higher power handling?
No-Zener diodes should not be paralleled due to mismatched breakdown voltages causing current hogging. Even with ±2 % tolerance, two PZU84-C16-QR units may exhibit >300 mV VZ difference at low currents, leading to one device carrying >90 % of total current and overheating. For higher power, select a single higher-rated Zener or implement active regulation instead.
PZU84-C16-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):
- 16.23 V
- Tolerance:
- ±5.3%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12 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-C16-QR FAQ
1.How can I place an order for PZU84-C16-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C16-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-C16-QR reliable?
The price and inventory of PZU84-C16-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-C16-QR is usually 5 days.
3.What payment methods are accepted for PZU84-C16-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C16-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C16-QR?
PZU84-C16-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C16-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-C16-QR?
For technical support, including PZU84-C16-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C16-QR requirements.
6.How does Aetrix verify that PZU84-C16-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-C16-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-C16-QR meets industry standards.
7.What is the process for return or replacement of PZU84-C16-QR?
All PZU84-C16-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C16-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-C16-QR part is unused and in its original packaging.
Return procedure for PZU84-C16-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C16-QR Tags
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MMSZ5231B-7-F
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MMSZ4682T1G
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MM5Z5V1ST1G
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