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Nexperia USA Inc. HPZR-C20-QX
- Part No.:
- HPZR-C20-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
HPZR-C20-QX.pdf
- Description:
- DIODE ZENER 20V 682MW SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:1,030
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Product details
Overview
HPZR-C20-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 20 V nominal Zener voltage at IZ = 1 mA, with ±5 % tolerance, 0.1 µA max reverse current at VR = 17 V, and 32.33 Ω differential resistance at IZ = 20 mA - enabling stable reference generation in engine control units and ADAS sensor power supplies.
For engineers reviewing the HPZR-C20-QX datasheet, HPZR-C20-QX pinout, HPZR-C20-QX application, or HPZR-C20-QX equivalent, this device supports high-reliability voltage stabilization under transient surge conditions, meets AEC-Q101 qualification, and provides ESD immunity up to 30 kV (IEC 61000-4-2 contact discharge), making it suitable for automotive front-end protection and low-current regulation circuits where thermal robustness and long-term stability are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled VZ characteristics across temperature (Tj = 25 °C baseline). Its 17–20.9 V working voltage range and low RZ ensure minimal output variation under load changes, while its 5.5 W DC power dissipation at Tsp = 75 °C enables sustained operation on standard FR4 PCBs with 1 cm² cathode pad.
The device features a single-junction silicon structure optimized for fast transient response and low leakage. Its 30 kV ESD rating at the cathode solder point and AEC-Q101 qualification confirm suitability for harsh automotive environments, including 12 V battery-supplied systems subject to load dump and ISO 7637-2 pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18.90 V to 20.90 V at IZ = 1 mA - defines precise clamping threshold for overvoltage protection in 24 V auxiliary circuits |
| Reverse Current (IR) | ≤ 0.1 µA at VR = 17 V - ensures negligible standby power loss in always-on vehicle modules |
| Differential Resistance (RZ) | 32.33 Ω at IZ = 20 mA - maintains <±10 mV output shift per 1 mA load change for stable reference accuracy |
| Total Power Dissipation (Ptot) | 5500 mW at Tsp = 75 °C (zero lead length) - supports continuous regulation without heatsink in compact ECUs |
| ESD Rating | 30 kV per IEC 61000-4-2 (contact discharge) at cathode solder point - protects against assembly-handling and in-system electrostatic events |
| Junction Temperature (Tj) | −55 °C to +175 °C - enables operation in under-hood environments including transmission control modules |
Pinout & Package
HPZR-C20-QX uses the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, and cathode-marked with a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marked by bar; serves as primary thermal path to PCB copper pad |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias conduction path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test standard - eliminates need for additional qualification in Tier-1 designs |
| 5.5 W DC power handling | Enables direct replacement of TO-220 Zeners in space-constrained modules without derating penalties |
| ±5 % VZ tolerance | Reduces binning requirements and simplifies BOM management across 20 V nominal variants |
| Low thermal resistance (Rth(j-sp) = 18 K/W) | Allows >90 % of junction heat to transfer directly to solder point - improves reliability vs. standard SOD-123 |
| 1 cm² cathode pad thermal design | Defined layout footprint ensures repeatable 5.5 W dissipation without custom thermal vias or copper pours |
Applications
| Engine Control Unit (ECU) Reference Supply | ADAS Camera Module Bias Rail |
|---|---|
Use Scenario: Provides stable 20 V reference for analog front-end ADCs and op-amps in gasoline/diesel ECU mainboards exposed to battery transients. IC Role / Device Role / Timing Role: Zener voltage regulator maintaining fixed bias point independent of input ripple or load step changes. Use Value: Maintains <±0.5 % reference accuracy over −40 °C to +125 °C ambient, preventing sensor offset drift during cold cranking. |
Use Scenario: Clamps 24 V camera power rail against ISO 7637-2 pulse 5a (load dump) in surround-view systems. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 800 W non-repetitive surges (tp ≤ 100 µs) before downstream LDOs. Use Value: Limits peak rail voltage to ≤22.5 V, protecting 20 V-rated image sensors and SerDes ICs from overvoltage damage. |
| Body Control Module (BCM) Wake-Up Circuit | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Regulates 20 V supply for ultra-low-power microcontroller wake-up comparators in BCM sleep mode. IC Role / Device Role / Timing Role: Low-leakage voltage reference enabling <1 µA total quiescent current in always-on monitoring circuitry. Use Value: Delivers 0.1 µA max IR at 17 V, extending battery life beyond 10 years in parked vehicle scenarios. |
Use Scenario: Stabilizes excitation voltage for torque sensor Wheatstone bridges in EPS motor control units. IC Role / Device Role / Timing Role: Precision shunt regulator ensuring <±0.1 % bridge bias stability across vibration and temperature cycling. Use Value: Achieves 32.33 Ω RZ to limit bridge voltage deviation to <2 mV under 5 mA load modulation, preserving torque measurement linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C20 | 20 V nominal, ±5 %, but only 300 mW Ptot, SOT23 package, RZ = 50 Ω | Limited to signal-level clamping; cannot sustain automotive load dump energy | Select only for non-automotive, low-power logic-level protection where board space is constrained |
| MMSZ5248B | 20 V nominal, ±5 %, 500 mW Ptot, SOD-123, RZ = 40 Ω, no AEC-Q101 | Unqualified for automotive; insufficient surge capability for 12/24 V systems | Acceptable for industrial control panels with external TVS coordination, but not standalone automotive use |
Compared with BZX84-C20 and MMSZ5248B, HPZR-C20-QX uniquely combines AEC-Q101 qualification, 5.5 W DC dissipation, and 30 kV ESD rating in a miniature CFP3 package - enabling single-device overvoltage protection and regulation in safety-critical automotive subsystems without supplemental components.
Availability
HPZR-C20-QX is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, body control modules, and electric power steering systems requiring stable component supply with full traceability and long-lifecycle support.
Supply support for HPZR-C20-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, headquartered in Nijmegen, Netherlands, with manufacturing in Europe and Asia.
The HPZR-Q series targets automotive-grade voltage regulation and transient suppression, engineered specifically for AEC-Q101 compliance, high thermal efficiency, and robust ESD performance in next-generation vehicle electronics.
FAQ
What is the maximum non-repetitive peak power the HPZR-C20-QX can handle?
The HPZR-C20-QX supports up to 800 W non-repetitive peak power dissipation for square-wave pulses ≤100 µs duration, as specified in Table 1. This capability enables effective suppression of ISO 7637-2 load-dump transients without degradation, provided the device is mounted per the recommended 1 cm² cathode pad layout on FR4 PCB.
Does HPZR-C20-QX require external heat sinking in automotive applications?
No external heat sink is required. With Rth(j-sp) = 18 K/W and 5.5 W DC dissipation at Tsp = 75 °C, the device achieves thermal equilibrium using only the defined 1 cm² cathode copper pad on standard FR4 - validated per Table 8 and Figure 9 in the datasheet for ambient temperatures up to +105 °C.
How does the ±5 % VZ tolerance impact precision sensing applications?
The ±5 % tolerance (18.90–20.90 V) is sufficient for most automotive regulation tasks, including biasing op-amps and clamping power rails. For higher-precision references, the low RZ (32.33 Ω) minimizes dynamic deviation: a 1 mA load change induces only ~32 mV shift, which remains within typical ADC input range tolerances when used with post-regulation filtering.
Can HPZR-C20-QX be used in parallel for higher power handling?
Parallel operation is not recommended due to VZ mismatch between units, which causes current imbalance and potential thermal runaway. The device is designed for single-unit implementation; higher power needs should be addressed via layout optimization (e.g., larger copper area) or selection of higher-voltage variants with matched thermal profiles.
HPZR-C20-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):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 682 mW
- Impedance (Max) (Zzt):
- 32.33 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 17 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-C20-QX FAQ
1.How can I place an order for HPZR-C20-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for HPZR-C20-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-C20-QX reliable?
The price and inventory of HPZR-C20-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-C20-QX is usually 5 days.
3.What payment methods are accepted for HPZR-C20-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPZR-C20-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPZR-C20-QX?
HPZR-C20-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPZR-C20-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-C20-QX?
For technical support, including HPZR-C20-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPZR-C20-QX requirements.
6.How does Aetrix verify that HPZR-C20-QX is sourced from the original manufacturer or authorized distributors?
All HPZR-C20-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-C20-QX meets industry standards.
7.What is the process for return or replacement of HPZR-C20-QX?
All HPZR-C20-QX units undergo pre-shipment inspection (PSI). If there is an issue with HPZR-C20-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-C20-QX part is unused and in its original packaging.
Return procedure for HPZR-C20-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HPZR-C20-QX Tags
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