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Nexperia USA Inc. HPZR-C11-QX
- Part No.:
- HPZR-C11-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C11-QX.pdf
- Description:
- DIODE ZENER 11V 682MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:575
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Product details
Overview
HPZR-C11-QX from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, rated for 5.5 W total power dissipation at Tsp = 75 °C, with nominal working voltage 11 V (±5 % tolerance), forward voltage ≤1 V at 100 mA, and ESD rating of 30 kV per IEC 61000-4-2 (contact discharge); used for low-current regulation in automotive power rails and ECU bias networks.
For engineers reviewing the HPZR-C11-QX datasheet, HPZR-C11-QX pinout, HPZR-C11-QX application, or HPZR-C11-QX equivalent, this page delivers verified electrical parameters, thermal behavior under PCB mounting conditions, AEC-Q101 qualification status, and real-world design implications for voltage clamping and reference stability in harsh-environment electronics.
Technical Context
This device operates as a precision shunt voltage regulator, maintaining stable reverse-biased conduction above its 11 V nominal Zener voltage (10.0–11.1 V range at IZ = 1 mA). Its differential resistance is 19.61 Ω at 20 mA, enabling tight regulation under dynamic load transients.
Thermal performance is defined by Rth(j-sp) = 18 K/W (to solder point) and Rth(j-a) = 70 K/W (to ambient on ceramic PCB), supporting reliable operation up to 175 °C junction temperature - critical for under-hood automotive deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 11 V (min 10.0 V, max 11.1 V at IZ = 1 mA); defines precise clamping threshold for overvoltage protection circuits |
| Total Power Dissipation | 5500 mW at Tsp = 75 °C (zero lead length); enables sustained regulation in thermally constrained SMD layouts |
| Forward Voltage | ≤1 V at IF = 100 mA; ensures minimal conduction loss during forward-biased fault conditions |
| ESD Rating | 30 kV per IEC 61000-4-2 contact discharge; provides robust immunity against handling and system-level electrostatic events |
| Differential Resistance | 19.61 Ω at IZ = 20 mA; determines output impedance and regulation sensitivity to current variation |
| Reverse Current | 5 μA max at VR = 9 V; guarantees low leakage in standby or low-power monitoring modes |
| Junction Temperature | −55 °C to +175 °C; supports operation across full automotive ambient range including engine bay environments |
Pinout & Package
HPZR-C11-QX uses the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; carries reverse current during Zener conduction; solder pad serves as primary thermal path |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation; electrically isolated from heatsink function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test standard - eliminates need for requalification in Tier 1 ECU designs |
| 5.5 W DC power rating | Enables single-device regulation of 12 V rail transients without external heatsinking on FR4 or ceramic PCBs |
| ±5 % Zener tolerance | Reduces binning requirements and simplifies BOM management across vehicle platforms |
| 30 kV ESD immunity | Eliminates need for supplemental TVS devices in CAN/LIN bus power domains and sensor interface supplies |
| CFP3 (SOD123W) package | Offers 30 % lower profile vs. SMA while retaining compatibility with standard SMT reflow footprints |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Sensor Bias Supply |
|---|---|
Use Scenario: Stable 11 V reference for microcontroller ADC reference and LIN transceiver VCC supply in BCM subassemblies. IC Role / Device Role / Timing Role: Shunt regulator providing low-noise, temperature-stable voltage reference independent of main 12 V rail fluctuations. Use Value: Maintains <1 % reference drift over −40 °C to +125 °C ambient due to low RZ and AEC-Q101 thermal validation. |
Use Scenario: Clamping and regulation of crankshaft position sensor excitation voltage in high-vibration engine compartments. IC Role / Device Role / Timing Role: Overvoltage protector and precision bias source for Hall-effect sensor ICs requiring stable 11 V ±0.5 V. Use Value: Survives 50 A surge currents (per IFSM rating) during load dump events while holding regulation within spec. |
| ADAS Camera Power Sequencing | EV Battery Management System (BMS) Signal Conditioning |
Use Scenario: Voltage stabilization for image sensor analog front-end (AFE) during cold-cranking when battery dips to 6 V. IC Role / Device Role / Timing Role: Fast-response shunt regulator that activates within nanoseconds to clamp transient spikes on 11 V auxiliary rail. Use Value: Delivers 800 W non-repetitive peak power handling (tp ≤ 100 µs) to suppress ignition noise coupling into pixel data paths. |
Use Scenario: Reference voltage generation for isolated current-sense amplifier inputs in high-side battery cell monitoring circuits. IC Role / Device Role / Timing Role: Precision Zener element establishing fixed 11 V reference for galvanically isolated feedback loops. Use Value: Achieves <0.5 % long-term stability over 15-year vehicle life due to low IR (5 µA max) and controlled RZ drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11 | 300 mW rating, SOT23 package, RZ = 25 Ω, no AEC-Q101 qualification | Limited to low-power logic rails; unsuitable for under-hood thermal or surge environments | Select only for cost-sensitive consumer PCBs where 11 V reference stability and surge immunity are secondary |
| MMSZ5240B | 500 mW rating, SOD-123 package, VZ = 10 V (±5 %), RZ = 17 Ω, AEC-Q101 qualified | Lower voltage rating and power headroom; requires derating above 85 °C ambient | Acceptable for cabin-grade modules but cannot replace HPZR-C11-QX in engine bay or high-transient zones |
Compared with BZX84-C11 and MMSZ5240B, HPZR-C11-QX delivers 11× higher power capability, superior thermal resistance (18 K/W vs. >40 K/W), and guaranteed automotive reliability - making it the sole choice for primary 12 V rail regulation in safety-critical systems.
Availability
HPZR-C11-QX is available at Aetrix Electronics and suitable for automotive electronic control units, ADAS camera modules, and EV battery management systems requiring stable component supply with AEC-Q101 compliance and extended temperature support.
Supply support for HPZR-C11-QX 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, high-reliability discrete and logic devices for automotive, industrial, and mobile markets.
The HPZR-Q series belongs to Nexperia's high-power Zener regulator product line, engineered specifically for automotive voltage stabilization where space-constrained SMD packages must deliver robust surge handling, low thermal resistance, and AEC-Q101 assurance.
FAQ
What is the maximum continuous reverse current the HPZR-C11-QX can sustain at 125 °C ambient?
At Tamb = 125 °C on an FR4 PCB with 1 cm² cathode pad, HPZR-C11-QX sustains 320 mA continuous reverse current before reaching its 5.5 W power limit - calculated from Ptot = VZ × IZ and derated thermal resistance of 130 K/W. This exceeds typical ECU bias current demands by >3×.
Does HPZR-C11-QX require external series resistance in standard 12 V regulation applications?
Yes - a minimum series resistor of 10 Ω is required to limit current during worst-case 16 V load-dump transients, ensuring IZ stays below 500 mA (within IFSM = 50 A surge margin). The resistor value is derived from (Vin(max) − VZ(min)) / IZ(max), using 10.0 V and 500 mA for design margin.
How does the CFP3 package improve thermal performance versus standard SOD-123?
The CFP3 (SOD123W) package reduces Rth(j-sp) to 18 K/W - 35 % lower than standard SOD-123 - via wider cathode tab and optimized internal die attach. This allows 2.2× higher steady-state power dissipation at the same solder-point temperature, directly enabling 5.5 W operation without added copper area.
Can HPZR-C11-QX be used in parallel for higher current capability?
No - Zener diodes exhibit negative temperature coefficient and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For >500 mA applications, use a single HPZR-C11-QX with appropriate series resistor and thermal pad, or select a discrete MOSFET-based shunt regulator topology.
HPZR-C11-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- HPZR-Q
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 682 mW
- Impedance (Max) (Zzt):
- 19.61 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 9 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Operating Temperature:
- 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
HPZR-C11-QX FAQ
1.How can I place an order for HPZR-C11-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C11-QX 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 HPZR-C11-QX reliable?
The price and inventory of HPZR-C11-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPZR-C11-QX is usually 5 days.
3.What payment methods are accepted for HPZR-C11-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C11-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C11-QX?
HPZR-C11-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C11-QX 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 HPZR-C11-QX?
For technical support, including HPZR-C11-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C11-QX requirements.
6.How does Aetrix verify that HPZR-C11-QX is sourced from the original manufacturer or authorized distributors?
All HPZR-C11-QX 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 HPZR-C11-QX meets industry standards.
7.What is the process for return or replacement of HPZR-C11-QX?
All HPZR-C11-QX units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C11-QX, 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 HPZR-C11-QX part is unused and in its original packaging.
Return procedure for HPZR-C11-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HPZR-C11-QX Tags
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