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Nexperia USA Inc. HPZR-C70-QX
- Part No.:
- HPZR-C70-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C70-QX.pdf
- Description:
- DIODE ZENER 70V 682MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,915
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Product details
Overview
HPZR-C70-QX from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision voltage clamping and regulation in automotive power rails. It delivers 70 V nominal working voltage (66.7–73.7 V at IZ = 1 mA), 5.5 W total power dissipation at Tsp = 75 °C, and 30 kV ESD rating per IEC 61000-4-2 (contact discharge), targeting under-hood engine control units and battery management systems.
For engineers reviewing the HPZR-C70-QX datasheet, HPZR-C70-QX pinout, HPZR-C70-QX application, or HPZR-C70-QX equivalent, this device supports stable overvoltage protection in space-constrained automotive PCBs where thermal performance, AEC-Q101 qualification, and low-profile SMD mounting are critical selection criteria.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with tightly controlled VZ tolerance (~±5 %) and low differential resistance (RZ = 60 Ω at IZ = 20 mA). Its thermal design leverages low Rth(j-sp) = 18 K/W to sustain 5.5 W DC dissipation when soldered directly to a cathode pad on FR4 PCB.
The device meets AEC-Q101 stress test requirements for discrete semiconductors and exhibits robust transient response: non-repetitive peak reverse power reaches 800 W for tp ≤ 100 µs, enabling effective suppression of load-dump spikes in 12 V/24 V vehicle electrical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VZ | 70 V (66.7–73.7 V range at IZ = 1 mA; enables precise clamping of 60–75 V supply rails) |
| Ptot @ Tsp = 75 °C | 5500 mW (DC power handling with zero-lead-length measurement; supports sustained regulation under thermal stress) |
| RZ | 60 Ω (differential resistance at IZ = 20 mA; ensures stable regulation with minimal voltage drift under load variation) |
| ESD Rating | 30 kV (IEC 61000-4-2 contact discharge; protects against electrostatic events during assembly and field operation) |
| IFSM | 50 A (non-repetitive peak forward current, 8.3 ms half-sine; withstands surge currents during fault conditions) |
| Rth(j-sp) | 18 K/W (junction-to-solder-point thermal resistance; enables efficient heat transfer to PCB copper pad) |
| VF | ≤ 1 V (forward voltage at IF = 100 mA; limits conduction loss during forward-biased transients) |
Pinout & Package
HPZR-C70-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 a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; primary heat path to PCB via cathode tab; polarity reference for reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias circuit; not used for thermal conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use up to +175 °C junction temperature and extended thermal cycling |
| CFP3 (SOD123W) package | Low-profile 1 mm height enables placement beneath connectors or shields in compact ECUs |
| 30 kV ESD rating | Eliminates need for external ESD protection in CAN/LIN bus power domains and sensor supply lines |
| 5.5 W DC power capability | Supports continuous clamping of 12 V/24 V system transients without derating in standard FR4 layouts |
| ±5 % VZ tolerance | Reduces binning requirements and simplifies BOM management across vehicle platforms |
Applications
| Engine Control Unit (ECU) Power Rail Protection | Automotive Battery Management System (BMS) |
|---|---|
|
Use Scenario: Clamping 12 V/24 V supply lines against load-dump transients (ISO 7637-2 Pulse 5a) in gasoline/diesel engine ECUs. IC Role / Device Role / Timing Role: Zener regulator diode operating in reverse breakdown to clamp voltage spikes above 70 V. Use Value: Prevents damage to MCU, CAN transceivers, and analog front-ends by limiting rail voltage to ≤73.7 V during 100 ms surges. |
Use Scenario: Overvoltage protection for cell monitoring ICs and isolation amplifiers in 48 V mild-hybrid BMS stacks. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining reference stability during charging/discharging cycles. Use Value: Ensures ±5 % VZ accuracy preserves ADC measurement integrity across -40 °C to +125 °C ambient. |
| ADAS Camera Module Power Supply | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: Regulating auxiliary 5 V/3.3 V LDO input rails in compact rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Voltage reference and transient suppressor upstream of low-noise linear regulators. Use Value: 60 Ω RZ minimizes output ripple under dynamic imaging loads, preserving image sensor SNR. |
Use Scenario: Protecting gate driver ICs and current sense amplifiers from inductive kickback in EPS H-bridge motor drivers. IC Role / Device Role / Timing Role: Fast-response clamping diode absorbing energy from MOSFET turn-off spikes. Use Value: 800 W non-repetitive peak power rating handles 100 µs spikes without degradation, extending driver lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C70 | 300 mW Ptot, SOT23 package, ±5 % VZ, RZ = 120 Ω | Limited to low-power signal-level clamping; unsuitable for automotive power rail transients | Select only for non-automotive, low-current (<10 mA) bias/reference circuits with no thermal constraints |
| SZ1SMB70AT3G | 600 W PZSM, DO-214AA package, ±5 % VZ, RZ = 2.5 Ω, AEC-Q101 qualified | Higher surge capacity but 4.5 mm × 3.5 mm footprint increases PCB area by 5× vs CFP3 | Prefer when peak surge energy exceeds 800 W or board layout allows larger package; avoid if height <1.1 mm required |
Compared with BZX84-C70 and SZ1SMB70AT3G, HPZR-C70-QX uniquely balances AEC-Q101 compliance, 5.5 W DC power, 1 mm profile, and 60 Ω RZ-making it optimal for thermally dense automotive modules where space, reliability, and steady-state clamping precision are jointly constrained.
Availability
HPZR-C70-QX is available at Aetrix Electronics and suitable for engine control units, battery management systems, ADAS camera modules, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for HPZR-C70-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The HPZR-Q series targets automotive power regulation needs-specifically engineered for robust, low-profile voltage clamping in harsh-environment ECUs, BMS, and ADAS subsystems where AEC-Q101 validation and thermal efficiency are mandatory.
FAQ
What is the maximum continuous power dissipation for HPZR-C70-QX at 75 °C solder point temperature?
HPZR-C70-QX sustains 5500 mW (5.5 W) of DC power dissipation at Tsp = 75 °C when measured with zero lead length, per Nexperia's Product Data Sheet Rev. 6. This rating assumes direct thermal coupling to a 1 cm² cathode pad on FR4 PCB and defines the upper limit for steady-state regulation without derating.
How does the 30 kV ESD rating impact system-level design?
The 30 kV IEC 61000-4-2 contact discharge rating eliminates the need for additional TVS diodes or RC filters on protected nodes-reducing BOM count and PCB area. It applies specifically to the cathode terminal and enables direct integration into CAN transceiver power rails, sensor supply inputs, and microcontroller reset lines without external ESD hardening.
Is HPZR-C70-QX compatible with standard SOD123W reflow footprints?
Yes-HPZR-C70-QX uses the industry-standard CFP3 (SOD123W) package with 2.6 mm × 1.7 mm body and 1.0 mm height. Nexperia's recommended reflow footprint (Fig. 11) specifies 1.2 mm × 1.4 mm solder lands, 0.1 mm stencil thickness, and 1.1 mm land spacing-fully compatible with IPC-7351B SOD123W templates.
What is the reverse leakage current specification at rated working voltage?
At VR = 56 V (80 % of nominal 70 V), HPZR-C70-QX guarantees IR ≤ 0.1 μA per Table 12. At full rated VZ = 70 V, typical IR remains below 0.1 μA-critical for minimizing quiescent current in always-on automotive modules such as telematics and gateway ECUs.
HPZR-C70-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):
- 70 V
- Tolerance:
- ±5%
- Power - Max:
- 682 mW
- Impedance (Max) (Zzt):
- 76.32 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 60 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-C70-QX FAQ
1.How can I place an order for HPZR-C70-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C70-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-C70-QX reliable?
The price and inventory of HPZR-C70-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-C70-QX is usually 5 days.
3.What payment methods are accepted for HPZR-C70-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C70-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C70-QX?
HPZR-C70-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C70-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-C70-QX?
For technical support, including HPZR-C70-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C70-QX requirements.
6.How does Aetrix verify that HPZR-C70-QX is sourced from the original manufacturer or authorized distributors?
All HPZR-C70-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-C70-QX meets industry standards.
7.What is the process for return or replacement of HPZR-C70-QX?
All HPZR-C70-QX units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C70-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-C70-QX part is unused and in its original packaging.
Return procedure for HPZR-C70-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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