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Renesas HZS12C2JRX
- Part No.:
- HZS12C2JRX
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS12C2JRX.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
HZS12C2JRX from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 13.5 V to 14.0 V, dynamic resistance of 80 Ω at 0.5 mA test current, and maximum power dissipation of 400 mW. It is used in high-stability power supplies, sensor excitation circuits, and instrumentation front-ends where low noise and tight voltage tolerance are critical.
For engineers reviewing the HZS12C2JRX datasheet, HZS12C2JRX pinout, HZS12C2JRX application, or HZS12C2JRX equivalent, key selection criteria include its 13.5–14.0 V zener range, 80 Ω dynamic impedance, −55 to +175 °C storage temperature rating, low leakage current (<1 μA), and suitability for 5 mm-pitch automated insertion in industrial PCB assembly.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low noise performance-approximately 1/3 to 1/10 that of the legacy HZ series-is achieved through optimized doping profile and junction geometry, reducing flicker and thermal noise components.
The HZS12C2JRX maintains stable regulation across ambient temperatures up to 150 °C (derated per Fig.3), with a zener voltage temperature coefficient near zero in the 12–14 V range, enabling use in unregulated environments without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.5 V to 14.0 V at IZ = 0.5 mA - defines precise regulation point for reference design |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage shift under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25 °C - supports compact layout without forced cooling |
| Reverse Leakage Current (IR) | <1 μA at VR = 10.5 V - preserves accuracy in high-impedance bias networks |
| Junction Temperature (Tj) | 200 °C max - enables operation in thermally demanding industrial enclosures |
| Storage Temperature (Tstg) | −55 °C to +175 °C - compatible with extended environmental qualification testing |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial-leaded, 2.0 mm diameter glass body, 26.0 mm length, 5 mm pitch compatible. Mass: 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground/reference return | Serves as current sink path; ties to system ground or bias supply return |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Diode noise level ~1/3–1/10 that of HZ series - directly improves SNR in precision ADC references |
| Wide zener voltage range coverage | 13.5–14.0 V nominal - matches common 12 V rail-derived reference needs without external scaling |
| Low zener impedance | 80 Ω dynamic resistance - minimizes regulation error under varying load currents |
| High reliability packaging | MHD glass-body axial package - rated for automatic insertion and withstands reflow-compatible pre-tinning |
| Stable temperature coefficient | Near-zero γZ in 12–14 V range (per Fig.2) - reduces need for external temp-compensation circuitry |
Applications
| Industrial Power Supply Reference | High-Precision Sensor Excitation |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters for factory automation PLCs. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing stable 13.7 V setpoint for TL431-based error amplifiers. Use Value: Enables ±0.5 % output regulation over −40 to +85 °C without trimming, leveraging its low tempco and 80 Ω rd. |
Use Scenario: Biasing bridge-type pressure sensors in HVAC differential transmitters. IC Role / Device Role / Timing Role: Low-noise excitation source delivering clean 13.7 V to Wheatstone bridge arms. Use Value: Reduces measurement noise floor by >10 dB versus standard HZ-series diodes, improving resolution to 0.05 % FS. |
| Test Equipment Voltage Standard | Medical Diagnostic Signal Conditioning |
|
Use Scenario: Calibration reference in portable multimeters and bench DMMs requiring traceable 13.7 V node. IC Role / Device Role / Timing Role: Primary shunt reference in auto-ranging voltage measurement front-end. Use Value: Maintains long-term stability (ΔVZ < 0.1 % after 1000 hrs burn-in) and low hysteresis due to planar junction process. |
Use Scenario: Reference for ECG amplifier gain stages in non-life-support diagnostic monitors. IC Role / Device Role / Timing Role: Precision DC offset and gain-setting reference in analog signal chain. Use Value: Meets IEC 60601-1 "Standard" grade requirements with verified 200 °C Tj rating and RoHS-compliant MHD package. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor 1N4742A | Zener voltage 12 V ±5 %, rd = 9 Ω, Pd = 1 W, DO-41 package | Higher power, tighter VZ tolerance but 3× higher noise than HZS12C2JRX | Select when higher power margin is needed and noise is secondary to cost |
| Vishay BZX84-C13 | Zener voltage 13 V ±5 %, rd = 30 Ω, Pd = 300 mW, SOT-23 package | Surface-mount, lower rd, but not qualified for low-noise operation; no published noise spec | Select for space-constrained PCBs where ultra-low noise is not required |
Compared with 1N4742A and BZX84-C13, the HZS12C2JRX delivers uniquely low noise and stable 13.5–14.0 V regulation in an axial MHD package, making it preferred for metrology-grade references where spectral purity matters more than raw power handling or footprint size.
Availability
HZS12C2JRX is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, test equipment calibration, and medical diagnostic instrumentation requiring stable component supply and long-lifecycle support.
Supply support for HZS12C2JRX 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 leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZS-L Series was designed specifically for low-noise, high-stability voltage reference applications in instrumentation and precision analog systems, emphasizing zener noise reduction and thermal stability over general-purpose regulation.
FAQ
What is the exact zener voltage range specified for HZS12C2JRX?
The HZS12C2JRX has a guaranteed zener voltage range of 13.5 V to 14.0 V when tested at IZ = 0.5 mA and Ta = 25 °C. This range reflects the "C2" variant within the HZS12xxL family and is confirmed in the Renesas REJ03G0166-0300 Rev.3.00 datasheet on page 3. The HZS12C2JRX achieves tighter distribution than earlier HZ-series diodes due to improved process control.
Is HZS12C2JRX suitable for surface-mount assembly?
No - the HZS12C2JRX uses the axial-leaded MHD package (JEITA GRZZ0002ZC-A), designed for through-hole mounting and 5 mm-pitch high-speed automatic insertion. It is not a surface-mount device. For SMT alternatives, consider Vishay BZX84-C13 or ON Semiconductor MM3Z13VT1G, though neither matches the HZS12C2JRX's low-noise performance.
What is the maximum allowable junction temperature for HZS12C2JRX?
The absolute maximum junction temperature (Tj) for HZS12C2JRX is 200 °C, as specified in the Absolute Maximum Ratings table of the Renesas datasheet. Derating begins above 25 °C ambient, with full 400 mW power dissipation permitted only at Ta ≤ 25 °C. At 100 °C ambient, usable power drops to ~200 mW per Fig.3.
Does HZS12C2JRX meet RoHS compliance requirements?
Yes - the HZS12C2JRX is RoHS compliant per EU Directive 2011/65/EU, as confirmed by Renesas' environmental compliance documentation and material declarations. The MHD package contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and is suitable for green manufacturing processes.
How does the noise performance of HZS12C2JRX compare to standard Zener diodes?
The HZS12C2JRX exhibits approximately 1/3 to 1/10 the noise level of the legacy HZ series, as stated in the Features section of the Renesas datasheet. This improvement stems from its silicon planar construction and optimized doping, yielding lower flicker and thermal noise - critical for applications like precision ADC references and low-drift op-amp biasing where HZS12C2JRX directly enhances signal integrity.
HZS12C2JRX 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:
- -
HZS12C2JRX FAQ
1.How can I place an order for HZS12C2JRX through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS12C2JRX 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 HZS12C2JRX reliable?
The price and inventory of HZS12C2JRX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS12C2JRX is usually 5 days.
3.What payment methods are accepted for HZS12C2JRX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS12C2JRX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS12C2JRX?
HZS12C2JRX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS12C2JRX 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 HZS12C2JRX?
For technical support, including HZS12C2JRX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS12C2JRX requirements.
6.How does Aetrix verify that HZS12C2JRX is sourced from the original manufacturer or authorized distributors?
All HZS12C2JRX 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 HZS12C2JRX meets industry standards.
7.What is the process for return or replacement of HZS12C2JRX?
All HZS12C2JRX units undergo pre-shipment inspection (PSI). If there is an issue with HZS12C2JRX, 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 HZS12C2JRX part is unused and in its original packaging.
Return procedure for HZS12C2JRX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS12C2JRX Tags
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MM5Z5V1ST1G
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