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Nexperia USA Inc. HPZR-C68X
- Part No.:
- HPZR-C68X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C68X.pdf
- Description:
- DIODE ZENER 68V 962MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,679
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Product details
Overview
HPZR-C68X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at 68 V nominal working voltage (VZ = 64.4–71.2 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 overvoltage protection circuits.
For engineers reviewing the HPZR-C68X datasheet, HPZR-C68X pinout, HPZR-C68X application, or HPZR-C68X equivalent, this page delivers verified thermal resistance (Rth(j-sp) = 18 K/W), differential resistance (RZ = 58 Ω @ IZ = 20 mA), non-repetitive peak power (800 W), forward voltage (≤1 V @ 100 mA), and cathode/anode pin mapping - all critical for surge-tolerant, space-constrained regulation designs.
Technical Context
This device operates as a two-terminal, silicon planar Zener diode optimized for stable reverse-bias voltage regulation under transient and steady-state conditions. Its 68 V nominal Zener voltage is specified at 1 mA test current, with tight tolerance (±5 %) and low differential resistance (58 Ω) ensuring minimal voltage drift across load variations.
Thermal design leverages direct cathode tab soldering to PCBs: Rth(j-sp) = 18 K/W enables efficient heat transfer from junction to solder point, while Rth(j-a) = 70 K/W (on ceramic PCB) supports operation up to 150 °C junction temperature - essential for high-reliability industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Working Voltage) | 64.4 V to 71.2 V @ IZ = 1 mA - defines precise clamping threshold for 68 V nominal regulation |
| Ptot (Total Power Dissipation) | 4100 mW @ Tsp = 75 °C - maximum continuous DC power handling with zero-lead-length measurement |
| RZ (Differential Resistance) | 58 Ω @ IZ = 20 mA - low dynamic impedance ensures stable output voltage under varying current loads |
| VF (Forward Voltage) | ≤ 1 V @ IF = 100 mA - enables low-loss forward conduction during polarity-reversal fault conditions |
| VESD (ESD Rating) | 30 kV per IEC 61000-4-2 contact discharge - protects downstream circuitry from electrostatic events without external TVS |
| IFSM (Peak Forward Current) | 50 A @ tp = 8.3 ms - withstands short-duration inrush or fault currents in power rail protection |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to solder point, enabling direct thermal path to PCB copper for high-power reliability |
Pinout & Package
HPZR-C68X 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; primary heat path via soldered cathode tab to PCB copper |
| 2 | Anode (A) | Connected to reference or ground; electrically opposite terminal for reverse-bias Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| High Power Handling | 4.1 W DC dissipation at 75 °C solder point - supports compact, high-current regulation without heatsinks |
| Tight Voltage Tolerance | ±5 % nominal VZ - reduces need for post-production trimming in precision reference applications |
| Robust ESD Immunity | 30 kV contact discharge rating - eliminates need for supplemental ESD protection in board-level designs |
| Low Thermal Resistance | 18 K/W junction-to-solder-point - enables reliable operation in thermally constrained industrial enclosures |
| Transient Surge Capability | 800 W non-repetitive peak power (tp ≤ 100 µs) - clamps lightning-induced or switching transients in power supplies |
Applications
| Industrial Power Supply Protection | Automated Test Equipment (ATE) Reference Clamping |
|---|---|
|
Use Scenario: Overvoltage protection in 48 V DC input rails of programmable logic controller (PLC) power modules exposed to inductive switching surges. IC Role / Device Role / Timing Role: Two-terminal Zener clamp absorbing transient energy above 68 V while maintaining stable rail integrity. Use Value: Prevents damage to downstream DC-DC converters and microcontrollers without adding series resistance or active control circuitry. |
Use Scenario: Precision voltage reference stabilization in high-speed digital pattern generators where ±0.5 % reference drift is unacceptable. IC Role / Device Role / Timing Role: Passive shunt regulator establishing fixed 68 V bias point for analog comparators and DAC reference buffers. Use Value: Maintains <1 % VZ variation across -40 °C to +125 °C ambient, eliminating calibration drift in production test fixtures. |
| Telecom Line Card Surge Suppression | Renewable Energy Inverter DC Bus Monitoring |
|
Use Scenario: Secondary-level surge suppression on -48 V telecom distribution boards subjected to repeated lightning-induced transients. IC Role / Device Role / Timing Role: Fast-response Zener element diverting >100 V spikes to ground before reaching sensitive line interface ICs. Use Value: Withstands 50 A peak forward current (8.3 ms half-sine) and 800 W pulse power, extending board lifetime beyond IEC 61000-4-5 Level 4 requirements. |
Use Scenario: DC bus voltage monitoring in solar microinverters where 60–75 V nominal bus must be clamped during MPPT algorithm faults. IC Role / Device Role / Timing Role: Standby-mode Zener regulator providing fail-safe voltage ceiling during grid-disconnect events. Use Value: Operates continuously at 962 mW @ 25 °C ambient and sustains 4.1 W derated power at 75 °C solder point - matching inverter thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C68 | 300 mW Ptot, SOT23 package, RZ = 100 Ω @ 5 mA - lower power, higher impedance | Suitable only for signal-level biasing; cannot replace HPZR-C68X in >1 W regulation or surge suppression | Select only for low-power reference generation where thermal margin and surge immunity are not required. |
| 1N5388B | 5 W Ptot, DO-41 through-hole, VZ = 68 V ±5 %, RZ = 4 Ω - higher power but larger footprint and no ESD rating | Requires PCB real estate and manual assembly; lacks integrated 30 kV ESD protection | Choose when legacy through-hole compatibility is mandatory and board-level ESD protection is already implemented separately. |
Compared with BZX84-C68 and 1N5388B, HPZR-C68X uniquely combines SMD miniaturization (CFP3), 4.1 W power capability, 30 kV ESD immunity, and 18 K/W junction-to-solder-point thermal resistance - making it optimal for modern, high-density, high-reliability industrial power regulation where space, surge resilience, and thermal performance are co-constrained.
Availability
HPZR-C68X is available at Aetrix Electronics and suitable for industrial power supply protection, automated test equipment reference clamping, telecom line card surge suppression, and renewable energy inverter DC bus monitoring requiring stable component supply across extended product lifecycles.
Supply support for HPZR-C68X 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-performance, high-reliability discrete and logic devices, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.
The HPZR series targets high-power Zener regulation in space-constrained SMD applications, engineered specifically to deliver robust transient immunity, precise voltage control, and superior thermal performance in industrial-grade power management systems.
FAQ
What is the exact Zener voltage range for HPZR-C68X at 1 mA test current?
The HPZR-C68X has a guaranteed working voltage range of 64.4 V to 71.2 V when measured at IZ = 1 mA and Tj = 25 °C, corresponding to a nominal 68 V rating with approximately ±5 % tolerance as defined in Table 12 of the official Nexperia datasheet Rev. 5.
Can HPZR-C68X be used in place of a standard 1N4744A in a 14 V power supply?
No - HPZR-C68X is a 68 V Zener diode and is not functionally interchangeable with the 1N4744A (14 V). Substituting it would result in incorrect regulation voltage and potential system failure. The HPZR-C68X is intended only for applications requiring ~68 V clamping, such as telecom -48 V bus protection or high-voltage DC monitoring.
Does HPZR-C68X require a heatsink for 4.1 W operation?
No external heatsink is required: the 4.1 W rating is specified at Tsp = 75 °C with zero lead length and direct cathode tab soldering to a 1 cm² copper pad on FR4 PCB. Proper PCB layout - including adequate copper area and thermal vias - fully satisfies thermal requirements per Nexperia's validated mounting conditions.
Is HPZR-C68X automotive qualified?
No - HPZR-C68X is not automotive qualified. The Nexperia datasheet explicitly states that unless otherwise indicated, products are non-automotive qualified and not tested to AEC-Q101 or automotive reliability standards. It is intended for industrial, telecom, and general-purpose applications only.
HPZR-C68X 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):
- 68 V
- Tolerance:
- ±5%
- Power - Max:
- 962 mW
- Impedance (Max) (Zzt):
- 75.26 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 58 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-C68X FAQ
1.How can I place an order for HPZR-C68X through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C68X 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-C68X reliable?
The price and inventory of HPZR-C68X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPZR-C68X is usually 5 days.
3.What payment methods are accepted for HPZR-C68X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C68X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C68X?
HPZR-C68X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C68X 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-C68X?
For technical support, including HPZR-C68X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C68X requirements.
6.How does Aetrix verify that HPZR-C68X is sourced from the original manufacturer or authorized distributors?
All HPZR-C68X 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-C68X meets industry standards.
7.What is the process for return or replacement of HPZR-C68X?
All HPZR-C68X units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C68X, 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-C68X part is unused and in its original packaging.
Return procedure for HPZR-C68X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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