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Nexperia USA Inc. HPZR-C8V8X
- Part No.:
- HPZR-C8V8X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C8V8X.pdf
- Description:
- DIODE ZENER 8.8V 962MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,619
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Product details
Overview
HPZR-C8V8X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at 8.8 V nominal working voltage (VZ = 8.33–9.21 V @ IZ = 1 mA), with 4.1 W total power dissipation at Tsp = 75 °C and 30 kV ESD rating per IEC 61000-4-2 (contact discharge), used in industrial power supply rail protection and overvoltage suppression circuits.
For engineers reviewing the HPZR-C8V8X datasheet, HPZR-C8V8X pinout, HPZR-C8V8X application, or HPZR-C8V8X equivalent, this page delivers verified thermal resistance (Rth(j-sp) = 18 K/W), differential impedance (RZ = 14.84 Ω @ IZ = 20 mA), reverse leakage (IR ≤ 50 μA @ VR = 7.5 V), forward voltage (VF ≤ 1 V @ IF = 100 mA), and non-repetitive surge capability (PZSM = 800 W, tp ≤ 100 µs).
Technical Context
This device operates as a two-terminal silicon Zener diode with sharp reverse breakdown characteristics, optimized for stable voltage reference and transient overvoltage clamping in low-current (<400 mA continuous) DC systems. Its CFP3 package enables high thermal efficiency via direct cathode tab soldering to PCB copper, achieving Rth(j-sp) = 18 K/W when mounted on the cathode solder point.
The HPZR-C8V8X exhibits ±5 % tolerance on nominal 8.8 V regulation, with differential resistance of 14.84 Ω at 20 mA test current and reverse leakage limited to 50 μA at 7.5 V - enabling predictable clamping behavior under varying load and temperature conditions across -55 °C to +150 °C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Working Voltage) | 8.33–9.21 V @ IZ = 1 mA - defines precise clamping threshold for 8.8 V nominal rail protection |
| Ptot (Total Power Dissipation) | 4100 mW @ Tsp = 75 °C - supports sustained regulation under high-temperature PCB mounting |
| RZ (Differential Resistance) | 14.84 Ω @ IZ = 20 mA - ensures minimal output voltage shift under dynamic load changes |
| IR (Reverse Current) | ≤ 50 μA @ VR = 7.5 V - guarantees low standby power loss in always-on protection circuits |
| VF (Forward Voltage) | ≤ 1 V @ IF = 100 mA - enables use as polarity-sensitive clamp or series rectifier in dual-function designs |
| ESD Rating | 30 kV contact discharge per IEC 61000-4-2 - provides robust handling and board-level ESD immunity without external protection |
| Rth(j-sp) | 18 K/W - enables efficient heat transfer from junction to cathode solder point, critical for power density |
Pinout & Package
HPZR-C8V8X 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. Thermal performance relies on cathode tab soldering to ≥1 cm² copper pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Main thermal path and voltage reference node; must be soldered to large copper area for rated 4.1 W dissipation |
| 2 | Anode (A) | Current return path; connects to regulated rail or ground depending on clamping configuration (cathode-to-rail or anode-to-rail) |
Key Features
| Feature | Design Value |
|---|---|
| High Surge Robustness | 800 W non-repetitive peak power (tp ≤ 100 µs) - suppresses fast transients like EFT and lightning-induced spikes |
| Low Thermal Resistance | Rth(j-sp) = 18 K/W - enables >2× higher power handling vs. standard SOD-123 due to direct cathode thermal coupling |
| Tight Voltage Tolerance | ±5 % on 8.8 V nominal - reduces need for post-regulation trimming in cost-sensitive industrial supplies |
| High ESD Immunity | 30 kV contact discharge - eliminates need for external TVS in many I/O and sensor interface protection layouts |
| Low-Leakage Regulation | IR ≤ 50 μA @ 7.5 V - maintains accuracy in battery-backed or ultra-low-power monitoring circuits |
Applications
| Industrial Power Rail Protection | Automated Test Equipment (ATE) Reference Clamping |
|---|---|
Use Scenario: Protecting 9 V logic rails in programmable logic controllers (PLCs) against 100 V/1 µs surge events during field wiring faults. IC Role / Device Role / Timing Role: Two-terminal Zener clamping element placed between rail and ground, conducting only during overvoltage excursions. Use Value: Delivers 800 W transient suppression without derating at 75 °C board temperature, reducing need for oversized heatsinking. |
Use Scenario: Stabilizing reference voltage for 12-bit DAC outputs in benchtop multimeters subject to ESD during probe handling. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining 8.8 V reference node against load and temperature drift. Use Value: ±5 % tolerance and 14.84 Ω dynamic impedance ensure <0.1 % reference error across 0–70 °C operating range. |
| IoT Sensor Node Overvoltage Suppression | DC-DC Converter Feedback Clamp |
Use Scenario: Safeguarding 3.3 V/5 V analog front-end inputs in battery-powered environmental sensors exposed to 8 kV contact ESD. IC Role / Device Role / Timing Role: Primary ESD clamp on signal line, triggered before internal IC protection activates. Use Value: 30 kV IEC 61000-4-2 rating allows single-device protection without RC filtering delay or signal distortion. |
Use Scenario: Limiting feedback voltage swing in isolated flyback converters to prevent controller latch-up during output short-circuit. IC Role / Device Role / Timing Role: Shunt limiter on optocoupler feedback path, clamping at 8.8 V to cap regulation error signal. Use Value: Low 50 μA leakage at 7.5 V avoids loading feedback divider, preserving loop stability and accuracy. |
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-C8V2 | Lower power (300 mW), SOT23 package, RZ = 13.25 Ω @ 20 mA, VZ = 7.78–8.60 V | Not suitable for >150 mW continuous dissipation; lacks cathode thermal pad for high-power mounting | Select when board space is constrained and average power <100 mW; avoid in thermally demanding environments. |
| 1N4737A | Through-hole DO-41, 1 W rating, VZ = 7.5 V, RZ = 10 Ω, no ESD rating specified | Requires manual assembly; no IEC 61000-4-2 validation; unsuitable for automated SMT lines | Choose only for legacy repair or prototyping where SMT compatibility and ESD immunity are not required. |
Compared with BZX84-C8V2 and 1N4737A, HPZR-C8V8X uniquely combines SMT compatibility, 4.1 W thermal capability via cathode pad, and certified 30 kV ESD immunity - making it the only option for high-reliability, high-density, and production-ready 8.8 V clamping in industrial and IoT applications.
Availability
HPZR-C8V8X is available at Aetrix Electronics and suitable for industrial power rail protection, automated test equipment reference clamping, IoT sensor node overvoltage suppression, and DC-DC converter feedback clamp applications requiring stable component supply, consistent parametric performance, and full traceability.
Supply support for HPZR-C8V8X 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 and industrial-grade components backed by ISO/TS 16949 and ISO 9001 certification.
The HPZR series belongs to Nexperia's high-power Zener regulator product line, engineered specifically for robust overvoltage protection and precision voltage clamping in space-constrained, thermally demanding industrial and instrumentation applications.
FAQ
What is the maximum continuous forward current rating for HPZR-C8V8X?
The absolute maximum forward current is 400 mA per Table 5 (Limiting Values). However, sustained operation above 100 mA requires careful thermal design due to VF ≤ 1 V drop and resulting self-heating; typical regulation use keeps forward conduction brief or negligible, as the device operates primarily in reverse breakdown.
Can HPZR-C8V8X replace a standard 1N4737A in a PCB redesign?
Yes, but only with layout revision: HPZR-C8V8X uses CFP3 (SOD123W) footprint requiring cathode pad thermal connection, unlike DO-41 through-hole 1N4737A. Electrical replacement is valid for 8.8 V vs. 7.5 V nominal, but system-level validation of clamping response, thermal rise, and ESD immunity is required due to different surge energy handling and package parasitics.
How does the 30 kV ESD rating translate to real-world board-level protection?
The 30 kV rating is measured per IEC 61000-4-2 contact discharge directly to the cathode solder point - meaning the device itself absorbs and safely dissipates that energy without failure. In practice, this eliminates need for upstream RC filters or secondary TVS diodes in most I/O protection schemes, provided PCB layout minimizes trace inductance to the cathode pad.
Is HPZR-C8V8X suitable for automotive applications?
No. This device is not AEC-Q200 qualified, and Nexperia explicitly states in its legal disclaimers that non-automotive qualified products are "not suitable for automotive use" and "neither qualified nor tested in accordance with automotive testing requirements." It must not be used in safety-critical or automotive production systems without additional qualification and risk mitigation.
HPZR-C8V8X 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):
- 8.8 V
- Tolerance:
- ±5%
- Power - Max:
- 962 mW
- Impedance (Max) (Zzt):
- 14.84 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 7.5 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-C8V8X FAQ
1.How can I place an order for HPZR-C8V8X through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C8V8X 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-C8V8X reliable?
The price and inventory of HPZR-C8V8X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPZR-C8V8X is usually 5 days.
3.What payment methods are accepted for HPZR-C8V8X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C8V8X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C8V8X?
HPZR-C8V8X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C8V8X 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-C8V8X?
For technical support, including HPZR-C8V8X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C8V8X requirements.
6.How does Aetrix verify that HPZR-C8V8X is sourced from the original manufacturer or authorized distributors?
All HPZR-C8V8X 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-C8V8X meets industry standards.
7.What is the process for return or replacement of HPZR-C8V8X?
All HPZR-C8V8X units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C8V8X, 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-C8V8X part is unused and in its original packaging.
Return procedure for HPZR-C8V8X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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