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Renesas HZ30CPTK-E
- Part No.:
- HZ30CPTK-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ30CPTK-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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- Shipping:
Inventory:10,000
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Product details
Overview
HZ30CPTK-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 30.2–31.6 V at 0.5 mA test current, 27 Ω dynamic impedance, 400 mW power dissipation, and DO-35 glass package with orange body and navy blue cathode band.
For engineers reviewing the HZ30CPTK-E datasheet, HZ30CPTK-E pinout, HZ30CPTK-E application, or HZ30CPTK-E equivalent, key selection criteria include zener voltage tolerance (±2.3% at 30.9 V nominal), low noise performance (1/3–1/10 of standard HZ series), temperature coefficient (−0.04 %/°C typical), and suitability for stabilized reference supplies in instrumentation and sensor interfaces.
Technical Context
The HZ30CPTK-E operates as a two-terminal voltage reference device using silicon planar junction technology to achieve stable reverse breakdown with minimal noise generation. Its low leakage current (<1 μA at VR = 28.2 V) and tightly controlled zener voltage range support high-accuracy biasing in low-power analog front-ends.
This device relies on DC-tested zener characteristics with specified test conditions: IZ = 0.5 mA for VZ, VR = 28.2 V for IR, and IZ = 0.5 mA for rd. It exhibits a negative temperature coefficient of −0.04 %/°C, indicating decreasing VZ with rising temperature - critical for thermal drift compensation in precision references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 30.2–31.6 V at IZ = 0.5 mA - defines stable regulation point for reference design |
| Dynamic Resistance (rd) | 27 Ω max at IZ = 0.5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating |
| Reverse Current (IR) | ≤1 μA at VR = 28.2 V - ensures minimal leakage-induced error in high-impedance bias networks |
| Junction Temperature (Tj) | −55 to +175°C - supports operation in extended industrial environments without derating |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - enables predictable thermal drift modeling for calibration compensation |
Pinout & Package
Package: DO-35 glass axial lead package (JEITA code GRZZ0002ZB-A), orange body with navy blue cathode band, mass 0.13 g, dimensions φD = 2.0 mm, L = 26.0 mm, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown voltage reference terminal | Connected to regulated positive rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground return path | Provides low-impedance return for zener current; forms complete bias loop with external resistor |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise level ≈1/3–1/10 that of standard HZ series - reduces RMS noise in precision voltage references |
| Stable low-impedance regulation | 27 Ω dynamic resistance at 0.5 mA - improves line/load regulation vs. higher-impedance alternatives |
| Wide zener voltage range coverage | 30.2–31.6 V nominal - enables use in 30 V rail stabilization and mid-range analog supply references |
| High-temperature reliability | 175°C max junction temperature - supports deployment in under-hood automotive or industrial control enclosures |
Applications
| Instrumentation Reference Supply | Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable excitation voltage for strain gauge bridges and RTD measurement circuits in portable data loggers. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference establishing precise bias point for Wheatstone bridge operation. Use Value: Low 27 Ω dynamic impedance minimizes bridge imbalance error due to current variation; low noise prevents signal-to-noise degradation in µV-level outputs. | Use Scenario: Biasing op-amp input stages and ADC reference inputs in environmental sensor modules (e.g., gas, humidity). IC Role / Device Role / Timing Role: Passive zener shunt regulator supplying clean, low-drift reference voltage to analog signal chain components. Use Value: −0.04 %/°C temperature coefficient enables accurate cold-junction compensation; 400 mW rating allows robust overvoltage protection during transient events. |
| Industrial Power Monitor Calibration | Programmable Logic Controller Analog Input |
Use Scenario: Calibrating voltage-sensing circuits in DIN-rail mounted power quality analyzers operating across −40 to +85°C ambient. IC Role / Device Role / Timing Role: Primary voltage reference element in self-calibrating feedback path for isolated DC bus monitoring. Use Value: Tight 30.2–31.6 V tolerance (±2.3%) ensures traceable accuracy; DO-35 package supports wave soldering and long-term reliability in vibration-prone panels. | Use Scenario: Generating stable 30 V reference for 16-bit analog input channels in modular PLC backplanes. IC Role / Device Role / Timing Role: Shunt-regulated reference source feeding precision resistor dividers and buffer amplifiers. Use Value: Low 1 μA leakage at 28.2 V prevents loading errors in high-Z divider networks; orange/DO-35 visual coding simplifies field replacement verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5257BRLG | Zener voltage 30 V ±5%, rd = 35 Ω, Pd = 500 mW, DO-35 package | Higher voltage tolerance and impedance reduce precision in low-drift designs | Select when cost sensitivity outweighs noise and thermal stability requirements |
| BZX85C30 | Zener voltage 30 V ±5%, rd = 50 Ω, Pd = 1.3 W, DO-41 package | Larger DO-41 footprint and higher power rating suit high-current shunt use but increase board area | Choose for higher-power dissipation needs where layout space permits larger package |
Compared with 1N5257BRLG and BZX85C30, the HZ30CPTK-E delivers tighter voltage tolerance (±2.3% vs. ±5%), lower dynamic impedance (27 Ω vs. 35/50 Ω), and significantly reduced noise - making it preferred for metrology-grade references where drift and spectral purity are critical.
Availability
HZ30CPTK-E is available at Aetrix Electronics and suitable for instrumentation reference supply, sensor signal conditioning, and industrial power monitor calibration requiring stable component supply, consistent parametric performance, and long-term availability in DO-35 packaging.
Supply support for HZ30CPTK-E 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
Renesas Technology Corp. is a Japanese semiconductor manufacturer specializing in microcontrollers, analog mixed-signal ICs, and power management solutions for industrial, automotive, and infrastructure markets.
The HZ-L Series, including HZ30CPTK-E, was designed specifically for low-noise, high-stability voltage reference applications in precision analog systems - emphasizing reduced diode noise, tight VZ tolerance, and predictable thermal behavior over general-purpose regulation.
FAQ
What is the nominal zener voltage range of the HZ30CPTK-E?
The HZ30CPTK-E has a nominal zener voltage range of 30.2 V to 31.6 V when tested at IZ = 0.5 mA, corresponding to a ±2.3% tolerance around the center value of 30.9 V. This specification is confirmed in the Electrical Characteristics table on page 3 of the REJ03G0182-0300 datasheet and applies strictly under DC test conditions.
Does the HZ30CPTK-E have a documented temperature coefficient?
Yes, the HZ30CPTK-E exhibits a typical zener voltage temperature coefficient (γZ) of −0.04 %/°C, as shown in Figure 2 of the datasheet. This negative coefficient indicates that its zener voltage decreases slightly with increasing temperature - a key parameter for drift-aware reference design and calibration compensation in the HZ30CPTK-E.
What is the maximum power dissipation rating for the HZ30CPTK-E?
The HZ30CPTK-E is rated for a maximum power dissipation of 400 mW at an ambient temperature of 25°C, per the Absolute Maximum Ratings table on page 2 of the REJ03G0182-0300 datasheet. Derating is required above 25°C, following the curve in Figure 3, with zero dissipation at 175°C junction temperature.
Is the HZ30CPTK-E compatible with automated PCB assembly processes?
Yes, the HZ30CPTK-E uses the standard DO-35 axial glass package (JEITA code GRZZ0002ZB-A), which is compatible with wave soldering and selective soldering processes. Its 2.0 mm diameter and 26.0 mm length meet IPC-7351 guidelines for axial components, and the orange body with navy blue cathode band supports visual and AOI-based polarity verification during HZ30CPTK-E placement.
How does the noise performance of the HZ30CPTK-E compare to legacy Zener diodes?
The HZ30CPTK-E achieves approximately 1/3 to 1/10 the noise level of standard HZ-series Zener diodes, as stated in the Features section of the datasheet. This improvement stems from optimized silicon planar junction processing and is verified under identical test conditions - directly benefiting low-noise applications such as precision ADC references and sensor excitation where HZ30CPTK-E replaces older high-noise variants.
HZ30CPTK-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZ30CPTK-E FAQ
1.How can I place an order for HZ30CPTK-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ30CPTK-E 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 HZ30CPTK-E reliable?
The price and inventory of HZ30CPTK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ30CPTK-E is usually 5 days.
3.What payment methods are accepted for HZ30CPTK-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ30CPTK-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ30CPTK-E?
HZ30CPTK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ30CPTK-E 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 HZ30CPTK-E?
For technical support, including HZ30CPTK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ30CPTK-E requirements.
6.How does Aetrix verify that HZ30CPTK-E is sourced from the original manufacturer or authorized distributors?
All HZ30CPTK-E 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 HZ30CPTK-E meets industry standards.
7.What is the process for return or replacement of HZ30CPTK-E?
All HZ30CPTK-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ30CPTK-E, 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 HZ30CPTK-E part is unused and in its original packaging.
Return procedure for HZ30CPTK-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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