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Nexperia USA Inc. HPZR-C9V4X
- Part No.:
- HPZR-C9V4X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C9V4X.pdf
- Description:
- DIODE ZENER 9.4V 962MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
HPZR-C9V4X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at nominal 9.4 V with ±5 % tolerance. It delivers 4.1 W total power dissipation at Tsp = 75 °C, supports 800 W non-repetitive peak power (tp ≤ 100 µs), and features 30 kV ESD rating per IEC 61000-4-2 (contact discharge), suitable for industrial power rail protection and low-current reference stabilization.
For engineers reviewing the HPZR-C9V4X datasheet, HPZR-C9V4X pinout, HPZR-C9V4X application, or HPZR-C9V4X equivalent, this page provides verified electrical parameters, thermal performance data, cathode/anode terminal mapping, real-world use cases in voltage clamping and overvoltage suppression, and validated alternative parts with documented functional differences.
Technical Context
This device operates as a silicon planar Zener diode optimized for stable reverse-biased regulation under transient and steady-state conditions. Its 9.4 V nominal working voltage (VZ = 8.89–9.83 V at IZ = 1 mA) and low differential resistance (RZ = 16.43 Ω at IZ = 20 mA) ensure tight regulation across temperature and load variations.
Thermal design is enabled by low Rth(j-sp) = 18 K/W (cathode solder point) and Rth(j-a) = 70 K/W (on ceramic PCB), supporting high ambient operation up to +150 °C. The CFP3 package's flat lead geometry ensures efficient heat transfer to PCB copper while maintaining SMD compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 9.4 V (range: 8.89–9.83 V at IZ = 1 mA); defines precise clamping threshold for 9 V rail protection |
| Total Power Dissipation | 4100 mW at Tsp = 75 °C (zero lead length); enables sustained regulation in thermally constrained layouts |
| Non-repetitive Peak Power | 800 W (tp ≤ 100 µs); handles short-duration surges without degradation |
| ESD Rating | 30 kV per IEC 61000-4-2 contact discharge; protects against human-body ESD events at cathode solder point |
| Differential Resistance | 16.43 Ω at IZ = 20 mA; ensures minimal voltage shift under dynamic current changes |
| Reverse Current | 25 µA max at VR = 8.0 V; guarantees low leakage in standby regulation circuits |
| Forward Voltage | 1.0 V max at IF = 100 mA; limits conduction loss during forward-biased fault conditions |
Pinout & Package
HPZR-C9V4X uses the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat leads, low-profile profile optimized for thermal conduction via cathode pad. Mounting requires 1 cm² tin-plated copper pad on FR4 PCB for rated 4.1 W dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; primary heat path to PCB; marked with bar on top surface |
| 2 | Anode (A) | Connected to ground or lower-potential reference; electrically and thermally isolated from cathode pad |
Key Features
| Feature | Design Value |
|---|---|
| High Power Density | 4.1 W dissipation in 2.6 mm × 1.7 mm footprint-enables compact voltage clamp designs without external heatsinks |
| Precision Zener Tolerance | ±5 % nominal voltage (9.4 V)-reduces need for post-production trimming in reference circuits |
| Robust ESD Immunity | 30 kV contact discharge rating-eliminates need for supplemental TVS in board-level ESD protection schemes |
| Low Thermal Resistance | Rth(j-sp) = 18 K/W to cathode solder point-supports reliable operation at Tj ≤ 150 °C in sealed enclosures |
| Wide Operating Range | −55 °C to +150 °C ambient-qualified for industrial motor drives and outdoor power electronics |
Applications
| Industrial Power Rail Clamping | Microcontroller I/O Protection |
|---|---|
|
Use Scenario: Clamp 9 V supply rail against load-dump transients in PLC I/O modules. IC Role / Device Role / Timing Role: Zener regulator diode providing fast reverse-bias voltage limiting at system input stage. Use Value: Absorbs 800 W surge energy (≤100 µs) without failure, maintaining downstream 9 V rail integrity. |
Use Scenario: Protect 3.3 V microcontroller GPIO pins from accidental 9 V miswiring. IC Role / Device Role / Timing Role: Standby shunt regulator that conducts only when overvoltage exceeds 9.4 V threshold. Use Value: Limits pin voltage to safe level using 25 µA leakage at 8 V, avoiding latch-up or oxide damage. |
| DC-DC Converter Feedback Reference | Automotive Sensor Signal Conditioning |
|
Use Scenario: Provide stable 9.4 V reference for optocoupler feedback in isolated flyback converters. IC Role / Device Role / Timing Role: Precision Zener element setting regulation setpoint in secondary-side control loop. Use Value: Maintains ±5 % voltage accuracy across −40 °C to +125 °C, ensuring consistent output regulation. |
Use Scenario: Stabilize 9 V bias for analog sensor front-ends in engine control units. IC Role / Device Role / Timing Role: Low-noise voltage reference source with 16.43 Ω dynamic impedance. Use Value: Minimizes signal drift under varying load currents, improving sensor measurement repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C9V1 | 9.1 V nominal, 300 mW Ptot, SOT23 package, RZ = 20 Ω | Lower power handling and higher dynamic impedance limit use to low-current (<50 mA) references | Select for cost-sensitive, space-constrained designs where 9.1 V tolerance and <0.3 W dissipation suffice |
| MMSZ5240B | 10 V nominal, 500 mW Ptot, SOD123 package, RZ = 17 Ω | Higher nominal voltage and lower surge capability (200 W PZSM) reduce suitability for 9 V rail clamping | Choose when 10 V regulation is acceptable and PCB layout allows larger SOD123 footprint with reduced thermal margin |
Compared with BZX84-C9V1 and MMSZ5240B, HPZR-C9V4X offers 8× higher power dissipation and 4× higher surge rating-making it uniquely suited for industrial-grade 9 V clamping where thermal robustness and transient immunity are critical.
Availability
HPZR-C9V4X is available at Aetrix Electronics and suitable for industrial power rail clamping, microcontroller I/O protection, DC-DC converter feedback reference, and automotive sensor signal conditioning requiring stable component supply, traceable sourcing, and long-term lifecycle support.
Supply support for HPZR-C9V4X 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 efficiency, reliability, and miniaturization.
The HPZR series targets high-power Zener regulation in space-constrained industrial and automotive-adjacent applications, emphasizing thermal robustness, ESD resilience, and precision voltage control in ultra-small packages.
FAQ
What is the maximum continuous power dissipation for HPZR-C9V4X at 25 °C ambient?
At Tamb ≤ 25 °C on an FR4 PCB with single-sided 1 cm² cathode pad, HPZR-C9V4X supports 962 mW total power dissipation. This value drops linearly with rising ambient temperature, reaching 4100 mW only when solder point temperature (Tsp) is maintained at 75 °C with zero lead length measurement condition.
How does the 30 kV ESD rating apply to circuit layout?
The 30 kV rating applies specifically to contact discharge at the cathode solder point per IEC 61000-4-2. To maintain this rating, the cathode pad must be directly connected to a solid copper pour with no narrow traces, and the anode must remain isolated from ESD-prone nodes. Layout must avoid vias or splits under the cathode pad.
Can HPZR-C9V4X replace standard 1N4739A in existing designs?
No-HPZR-C9V4X is not a drop-in replacement for 1N4739A (9.1 V, 1 W, DO-41). It has different package (CFP3 vs. axial), thermal path (solder-point referenced vs. case), and surge rating (800 W vs. ~40 W). Redesign of PCB footprint, thermal pad, and surge test validation is required.
What is the guaranteed reverse current at 8.0 V for HPZR-C9V4X?
Per Table 12, HPZR-C9V4X guarantees maximum reverse current (IR) of 25 µA at VR = 8.0 V and Tj = 25 °C. This low leakage ensures minimal quiescent power draw in always-on regulation circuits and preserves accuracy in high-impedance reference networks.
HPZR-C9V4X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- HPZR
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.4 V
- Tolerance:
- ±5%
- Power - Max:
- 962 mW
- Impedance (Max) (Zzt):
- 16.43 Ohms
- Current - Reverse Leakage @ Vr:
- 25 µA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
HPZR-C9V4X FAQ
1.How can I place an order for HPZR-C9V4X through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C9V4X 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-C9V4X reliable?
The price and inventory of HPZR-C9V4X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPZR-C9V4X is usually 5 days.
3.What payment methods are accepted for HPZR-C9V4X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C9V4X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C9V4X?
HPZR-C9V4X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C9V4X 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-C9V4X?
For technical support, including HPZR-C9V4X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C9V4X requirements.
6.How does Aetrix verify that HPZR-C9V4X is sourced from the original manufacturer or authorized distributors?
All HPZR-C9V4X 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-C9V4X meets industry standards.
7.What is the process for return or replacement of HPZR-C9V4X?
All HPZR-C9V4X units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C9V4X, 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-C9V4X part is unused and in its original packaging.
Return procedure for HPZR-C9V4X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HPZR-C9V4X Tags
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