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Renesas HZ11CPTK-E
- Part No.:
- HZ11CPTK-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ11CPTK-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:2,815,000
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Product details
Overview
HZ11CPTK-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 11.4 V to 11.9 V, dynamic resistance of 80 Ω at 0.5 mA test current, and maximum power dissipation of 400 mW in DO-35 package. It serves as a stable reference in low-drift power supply feedback paths and sensor biasing networks.
For engineers reviewing the HZ11CPTK-E datasheet, HZ11CPTK-E pinout, HZ11CPTK-E application, or HZ11CPTK-E equivalent, key selection criteria include zener voltage tolerance (±0.5 V), low noise performance relative to standard HZ series, temperature coefficient behavior below 0.02 %/°C in the 11–12 V range, and DO-35 mechanical compatibility with through-hole PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a silicon planar junction. Its low dynamic resistance (80 Ω) and reduced noise level-approximately 1/3 to 1/10 that of the legacy HZ series-enable high signal integrity in sensitive analog front-ends.
The HZ11CPTK-E exhibits a zener voltage temperature coefficient near zero (≤ ±0.02 %/°C) within its specified 11.4–11.9 V range and maintains stable operation up to 175°C junction temperature, supporting use in thermally demanding industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.4 V min to 11.9 V max at IZ = 0.5 mA - defines tight regulation window for precision reference design |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output impedance variation under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous operation in compact PCB footprints without forced cooling |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - minimizes parasitic current draw in high-impedance bias networks |
| Junction Temperature (Tj) | −55°C to +175°C - enables deployment in automotive under-hood and industrial control enclosures |
| Noise Level | ≈1/3–1/10 of HZ series - directly improves SNR in low-level instrumentation amplifier references |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial leaded package with orange body and navy blue cathode band. Total mass: 0.13 g. Standard lead spacing accommodates 2.54 mm pitch PCB mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated output or op-amp inverting input; polarity critical for correct bias direction |
| 2 (Anode) | Low-side return path | Tied to ground or current-limiting resistor; completes zener conduction loop during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise performance | Reduces broadband voltage noise in reference paths, enabling sub-mV RMS error in 16-bit ADC systems |
| Low dynamic impedance | 80 Ω ensures <1 mV output shift per 10 μA load change-critical for stable op-amp feedback |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2–38 V, allowing single-supplier sourcing across multiple reference voltages |
| High thermal stability | Near-zero temperature coefficient in 11–12 V range minimizes drift-induced calibration errors over −40°C to +85°C |
Applications
| Medical Instrumentation Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Precision voltage reference for ECG front-end amplifiers requiring stable DC offset correction. IC Role / Device Role / Timing Role: Zener diode provides low-noise, low-drift bias voltage to op-amp input stage. Use Value: 1/3–1/10 lower noise than standard HZ series directly improves signal-to-noise ratio in microvolt-level biopotential measurements. | Use Scenario: Excitation voltage source for strain gauge Wheatstone bridges in load cell modules. IC Role / Device Role / Timing Role: Zener diode supplies regulated excitation voltage independent of supply rail fluctuations. Use Value: 80 Ω dynamic resistance limits bridge voltage shift to <0.8 mV under 10 μA bridge current variation, preserving measurement linearity. |
| Programmable Logic Controller (PLC) Analog Input | Test & Measurement Equipment Calibration |
Use Scenario: Reference for 12-bit DAC-based current loop (4–20 mA) output drivers in modular PLC I/O cards. IC Role / Device Role / Timing Role: Zener diode sets accurate full-scale voltage for DAC output scaling circuitry. Use Value: ±0.5 V zener voltage tolerance and ≤0.02 %/°C tempco ensure <0.1% FS error over industrial temperature range. | Use Scenario: On-board reference in handheld multimeters for auto-ranging DC voltage measurement. IC Role / Device Role / Timing Role: Zener diode establishes primary reference point for ADC gain calibration routines. Use Value: 400 mW power rating allows sustained operation during self-test sequences without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11LT1G | Zener voltage 10.4–11.6 V; SOT-23 package; 300 mW Pd; rd ≈ 100 Ω | Surface-mount only; higher dynamic resistance; unsuitable for high-reliability through-hole designs | Choose for space-constrained PCBs where DO-35 footprint is unavailable |
| 1N4740A | Zener voltage 10.0–11.0 V; DO-41 package; 1 W Pd; rd ≈ 9 Ω | Higher power handling but significantly higher noise; wider voltage tolerance (±5%) | Choose when higher current drive (>20 mA) is required and noise is secondary to regulation accuracy |
Compared with BZX84-C11LT1G and 1N4740A, the HZ11CPTK-E delivers superior noise performance and tighter voltage tolerance in a standardized DO-35 through-hole package, making it optimal for legacy-compatible, low-drift analog reference designs where board-level noise floor is critical.
Availability
HZ11CPTK-E is available at Aetrix Electronics and suitable for medical instrumentation reference, industrial sensor signal conditioning, and programmable logic controller (PLC) analog input applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for HZ11CPTK-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 Electronics Corporation is a global semiconductor manufacturer specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and infrastructure markets.
The HZ-L Series Zener diodes were designed specifically for low-noise, high-stability voltage reference applications in precision analog systems-emphasizing reduced noise, tight voltage tolerance, and predictable temperature behavior over broad operating conditions.
FAQ
What is the exact zener voltage range for HZ11CPTK-E?
The HZ11CPTK-E has a guaranteed zener voltage range of 11.4 V minimum to 11.9 V maximum when tested at IZ = 0.5 mA, as specified in the Renesas REJ03G0182-0300 datasheet. This 0.5 V span reflects tight binning for precision reference use, and the device is part of the HZ11CxxL subgroup within the HZ-L family.
Is HZ11CPTK-E compatible with standard DO-35 footprint layouts?
Yes, HZ11CPTK-E uses the DO-35 package (JEITA code GRZZ0002ZB-A) with standard axial leads and 2.54 mm lead spacing. Its mechanical dimensions-including body diameter of 2.0 mm and overall length of 26.0 mm-are fully compliant with IPC-7351 Class L standards for DO-35, ensuring drop-in compatibility with existing through-hole PCB designs.
How does the noise performance of HZ11CPTK-E compare to generic Zener diodes?
HZ11CPTK-E achieves approximately 1/3 to 1/10 the noise level of the legacy HZ series, due to optimized silicon planar junction processing. This reduction is measured across the 10 Hz–10 kHz bandwidth and directly translates to improved signal fidelity in low-level analog circuits-unlike generic Zeners, which typically exhibit higher flicker and avalanche noise components.
What is the maximum reverse leakage current for HZ11CPTK-E?
The maximum reverse leakage current (IR) for HZ11CPTK-E is 1 μA at VR = 2.0 V, per the REJ03G0182-0300 datasheet. This low leakage supports high-impedance bias networks-for example, in op-amp non-inverting inputs-without introducing measurable offset error or loading effects.
Can HZ11CPTK-E be used in surface-mount designs?
No, HZ11CPTK-E is exclusively available in the through-hole DO-35 package and is not offered in surface-mount variants. For SMT equivalents, consider Renesas' HZ-L series SOD-123 packaged parts (e.g., HZ11CPTK-S) or alternative manufacturers' SOT-23 Zener offerings-but note those differ in thermal performance, noise, and voltage tolerance.
HZ11CPTK-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:
- -
HZ11CPTK-E FAQ
1.How can I place an order for HZ11CPTK-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11CPTK-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 HZ11CPTK-E reliable?
The price and inventory of HZ11CPTK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11CPTK-E is usually 5 days.
3.What payment methods are accepted for HZ11CPTK-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11CPTK-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11CPTK-E?
HZ11CPTK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11CPTK-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 HZ11CPTK-E?
For technical support, including HZ11CPTK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11CPTK-E requirements.
6.How does Aetrix verify that HZ11CPTK-E is sourced from the original manufacturer or authorized distributors?
All HZ11CPTK-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 HZ11CPTK-E meets industry standards.
7.What is the process for return or replacement of HZ11CPTK-E?
All HZ11CPTK-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11CPTK-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 HZ11CPTK-E part is unused and in its original packaging.
Return procedure for HZ11CPTK-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ11CPTK-E Tags
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