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Nexperia USA Inc. HPZR-C56X
- Part No.:
- HPZR-C56X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C56X.pdf
- Description:
- DIODE ZENER 56V 962MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,330
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Product details
Overview
HPZR-C56X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at 56 V nominal working voltage (VZ = 53.3–58.9 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-C56X datasheet, HPZR-C56X pinout, HPZR-C56X application, or HPZR-C56X equivalent, this page delivers verified electrical parameters, thermal performance data, cathode/anode terminal mapping, and real-world use cases for stable voltage reference and transient suppression in non-automotive embedded power rails.
Technical Context
This device operates as a two-terminal, silicon planar Zener diode with sharp reverse breakdown characteristics. Its 56 V nominal regulation voltage is specified at IZ = 1 mA, with differential resistance RZ = 48 Ω and maximum reverse current IR ≤ 0.1 μA at VR = 45.2 V.
Thermal design is enabled by low junction-to-solder-point thermal resistance (Rth(j-sp) = 18 K/W) and defined mounting conditions on FR4 PCBs. It supports non-repetitive peak power dissipation up to 800 W for tp ≤ 100 μs, enabling robust surge handling in DC power conditioning stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 56 V - precise DC voltage reference point for regulation/clamping at IZ = 1 mA |
| VZ range | 53.3–58.9 V - guaranteed tolerance band defining usable regulation window |
| Ptot | 4100 mW @ Tsp = 75 °C - maximum continuous power handling under zero-lead-length thermal test condition |
| RZ | 48 Ω - dynamic impedance determining regulation stability under load variation |
| IR | ≤ 0.1 μA @ VR = 45.2 V - leakage current level ensuring minimal quiescent power loss in standby |
| ESD rating | 30 kV contact discharge (IEC 61000-4-2) - enables direct placement in unshielded front-end power nodes without external ESD protection |
| Rth(j-sp) | 18 K/W - quantifies thermal path efficiency from junction to solder point, critical for PCB copper pad sizing |
Pinout & Package
HPZR-C56X uses the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode-marked with bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; requires ≥1 cm² copper pad for rated 4.1 W dissipation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| High power density | 4.1 W in SOD123W footprint - enables compact overvoltage protection without heatsinks in space-constrained designs |
| Tight voltage tolerance | ±5 % nominal VZ - ensures predictable clamping threshold across production batches for reliable system-level protection |
| Ultra-low leakage | ≤ 0.1 μA at 80 % of VZ - minimizes standby current in battery-backed or energy-sensitive applications |
| ESD-hardened construction | 30 kV contact discharge rating - eliminates need for discrete TVS in many industrial I/O and power input stages |
| Low Rth(j-sp) | 18 K/W - allows direct thermal coupling to PCB copper, simplifying thermal management vs. through-hole alternatives |
Applications
| Industrial Power Supply Protection | Programmable Logic Controller (PLC) Input Conditioning |
|---|---|
|
Use Scenario: Clamping 48 V DC bus transients induced by relay switching or inductive load turn-off in factory automation systems. IC Role / Device Role / Timing Role: Two-terminal Zener diode operating in reverse breakdown to clamp voltage spikes above 56 V. Use Value: Prevents damage to downstream 5 V/3.3 V logic circuitry by limiting bus overvoltage to <60 V for durations up to 100 µs. |
Use Scenario: Stabilizing analog input reference voltage in 0–10 V sensor signal conditioning modules within modular PLC backplanes. IC Role / Device Role / Timing Role: Precision voltage reference element providing stable 56 V bias for op-amp gain-setting networks. Use Value: Maintains ±0.5 % reference accuracy over temperature due to low RZ (48 Ω) and tight VZ tolerance. |
| DC-DC Converter Feedback Clamp | Test Equipment Power Rail Guarding |
|
Use Scenario: Protecting feedback divider resistors in isolated 48 V → 12 V flyback converters against output overvoltage faults. IC Role / Device Role / Timing Role: Shunt regulator placed across upper feedback resistor to divert excess current when output exceeds 56 V. Use Value: Limits feedback node voltage to safe levels (<60 V), preventing optocoupler saturation and enabling fast fault recovery. |
Use Scenario: Safeguarding calibration-grade multimeter internal power rails during accidental connection to 48 V industrial test points. IC Role / Device Role / Timing Role: Standby-mode voltage clamp absorbing brief 800 W surges without degradation. Use Value: Withstands >1000 ESD events at 30 kV without parameter shift, ensuring long-term measurement 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-C56 | 300 mW Ptot, SOT23 package, VZ = 53–60 V, RZ = 100 Ω | Lower power handling limits use to signal-level clamping only; unsuitable for 48 V bus protection | Select only for low-current bias/reference where thermal margin is not required |
| SMBJ58A | 600 W PZSM, 58 V VBR, DO-214AA package, bidirectional TVS | Higher surge capacity but looser voltage tolerance (±5 % VBR vs. ±5 % VZ) and no DC regulation capability | Choose for transient-only suppression; avoid where stable DC clamping is needed |
Compared with BZX84-C56 and SMBJ58A, HPZR-C56X uniquely combines 4.1 W DC power handling, 48 Ω dynamic impedance, and 56 V precision regulation in a 2.6 mm × 1.7 mm footprint-enabling both steady-state voltage control and transient absorption in a single device.
Availability
HPZR-C56X is available at Aetrix Electronics and suitable for industrial power supply protection, PLC input conditioning, DC-DC converter feedback clamping, and test equipment power rail guarding requiring stable component supply and long-lifecycle support.
Supply support for HPZR-C56X 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 essential semiconductors for automotive, industrial, and consumer markets.
The HPZR series belongs to Nexperia's high-power Zener diode product line, engineered specifically for stable DC voltage regulation and robust transient suppression in industrial power interfaces where space, thermal performance, and ESD resilience are critical.
FAQ
What is the maximum continuous power dissipation for HPZR-C56X at 75 °C solder point temperature?
HPZR-C56X delivers 4100 mW (4.1 W) of total power dissipation at Tsp = 75 °C under zero-lead-length measurement conditions, as confirmed in Table 4 of the official Nexperia datasheet Rev. 5. This rating assumes direct thermal coupling to a 1 cm² cathode copper pad on FR4 PCB.
Does HPZR-C56X meet IEC 61000-4-2 ESD requirements for industrial environments?
Yes-HPZR-C56X is rated for 30 kV electrostatic discharge (contact discharge) per IEC 61000-4-2, verified via ten non-repetitive pulses applied at the cathode soldering point. This exceeds Level 4 (8 kV contact) required for most industrial end-equipment standards.
How does the 48 Ω dynamic impedance affect regulation accuracy under load variation?
A 48 Ω differential resistance means that for every 1 mA change in Zener current, the regulated voltage shifts by 48 mV. This value is measured at IZ = 20 mA and directly determines output voltage stability in current-source-driven regulation circuits, especially in feedback networks of DC-DC converters.
Can HPZR-C56X replace standard 1N5388B Zener diodes in existing designs?
No-1N5388B is a 56 V, 5 W through-hole Zener in DO-201AD package with different thermal behavior and mounting mechanics. HPZR-C56X offers superior ESD rating (30 kV vs. ~8 kV) and smaller footprint but requires PCB layout adaptation for its SOD123W thermal pad; it is not a drop-in mechanical replacement.
HPZR-C56X 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):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 962 mW
- Impedance (Max) (Zzt):
- 65.72 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 48 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-C56X FAQ
1.How can I place an order for HPZR-C56X through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C56X 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-C56X reliable?
The price and inventory of HPZR-C56X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPZR-C56X is usually 5 days.
3.What payment methods are accepted for HPZR-C56X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C56X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C56X?
HPZR-C56X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C56X 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-C56X?
For technical support, including HPZR-C56X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C56X requirements.
6.How does Aetrix verify that HPZR-C56X is sourced from the original manufacturer or authorized distributors?
All HPZR-C56X 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-C56X meets industry standards.
7.What is the process for return or replacement of HPZR-C56X?
All HPZR-C56X units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C56X, 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-C56X part is unused and in its original packaging.
Return procedure for HPZR-C56X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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