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Renesas HZS12C1LTD-E
- Part No.:
- HZS12C1LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS12C1LTD-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:57,500
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Product details
Overview
HZS12C1LTD-E 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 13.45 V (min 13.2 V / max 13.7 V), dynamic resistance of 80 Ω at 0.5 mA test current, maximum power dissipation of 400 mW, and junction temperature rating up to 200°C. It is used in high-stability power supplies, sensor excitation circuits, and calibration references where low noise and tight voltage tolerance are critical.
For engineers reviewing the HZS12C1LTD-E datasheet, HZS12C1LTD-E pinout, HZS12C1LTD-E application, or HZS12C1LTD-E equivalent, key selection criteria include its 80 Ω zener impedance at 0.5 mA, ±0.25 V zener voltage tolerance, −55°C to +175°C storage temperature range, and suitability for 5 mm-pitch automated insertion in industrial and test equipment designs.
Technical Context
This device operates as a two-terminal voltage reference using silicon planar Zener breakdown, with low leakage current (<1 μA at VR = 2.0 V) and tightly controlled dynamic resistance to minimize output noise and regulation error under varying load conditions. Its construction enables stable DC voltage regulation without external biasing circuitry.
The HZS12C1LTD-E is specified for operation at 0.5 mA zener test current, exhibits a negative temperature coefficient near 0 mV/°C (per family trend for ~13.5 V devices), and maintains low noise performance-approximately 1/3–1/10 that of the legacy HZ series-making it suitable for metrology-grade references and low-drift analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.2 V min / 13.7 V max at IZ = 0.5 mA - defines stable reference window for precision regulation |
| 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 PCB layout without forced cooling |
| Junction Temperature (Tj) | 200°C max - enables reliable operation in high-ambient industrial environments |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - minimizes parasitic current draw in high-impedance reference nodes |
| Storage Temperature | −55°C to +175°C - compatible with extended industrial reflow and long-term storage |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial lead, 2.0 mm diameter body, 26.0 mm length, 5 mm pitch compatibility for high-speed automatic insertion. Mass: 0.084 g (typ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated positive rail; polarity-sensitive for correct reverse-bias operation |
| 2 (Anode) | Reference ground return | Provides low-impedance path to circuit common; must be held at lower potential than cathode |
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 |
| Low dynamic impedance | 80 Ω max at 0.5 mA - reduces line/load regulation error in unregulated supply rails |
| Wide zener voltage range | 13.2–13.7 V nominal - fits mid-range analog supply monitoring and feedback thresholds |
| High thermal robustness | 200°C max junction temperature - supports operation in sealed enclosures or near heat sources |
| Automated assembly ready | 5 mm pitch axial leads - eliminates manual placement in high-volume industrial control PCBs |
Applications
| Industrial Power Monitoring | Calibration Reference Source |
|---|---|
Use Scenario: Real-time monitoring of 12–15 V DC bus voltage in PLC backplanes and motor drives. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference providing stable threshold for comparator-based overvoltage detection. Use Value: 80 Ω dynamic resistance ensures <±5 mV shift across 10–100 μA load variation, enabling accurate trip-point consistency. |
Use Scenario: Fixed reference in portable multimeters and handheld calibration tools requiring traceable accuracy. IC Role / Device Role / Timing Role: Primary DC voltage standard replacing bulkier IC references where size and cost are constrained. Use Value: Low noise and ±0.25 V zener tolerance support 0.5% full-scale accuracy without trimming components. |
| Sensor Excitation Circuit | Analog Front-End Biasing |
Use Scenario: Stable excitation voltage for strain gauge bridges and RTD interfaces in process instrumentation. IC Role / Device Role / Timing Role: Low-drift, low-noise bias source maintaining bridge common-mode stability under thermal cycling. Use Value: 1 μA max reverse leakage prevents offset drift in nanoamp-level bridge sensing paths. |
Use Scenario: Reference node for op-amp biasing and DAC output buffering in data acquisition modules. IC Role / Device Role / Timing Role: Passive shunt regulator establishing clean local VREF independent of main supply ripple. Use Value: 400 mW power rating allows direct use with 10 kΩ series resistor at 24 V input, simplifying BOM. |
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 |
|---|---|---|---|
| 1N4742A (ON Semiconductor) | Zener voltage 12 V ±5%, rd = 9 Ω @ 21 mA, Pd = 1 W, TO-204AA package | Higher power, higher test current, larger footprint - suited for higher-current regulation, not low-noise reference | Select when >20 mA zener current is available and noise is secondary to power handling |
| BZX84-C13 (Diodes Inc.) | Zener voltage 13 V ±5%, rd = 30 Ω @ 5 mA, SOT-23 package, Pd = 300 mW | Surface-mount, lower power, higher test current - compact but less stable at microamp bias levels | Select for space-constrained PCBs where 5 mA bias is acceptable and axial leads are prohibited |
Compared with 1N4742A and BZX84-C13, the HZS12C1LTD-E delivers superior low-noise performance and tighter voltage tolerance at microamp bias currents, making it uniquely suitable for precision reference nodes-not general-purpose regulation-where signal integrity outweighs power or footprint constraints.
Availability
HZS12C1LTD-E is available at Aetrix Electronics and suitable for industrial power monitoring, calibration reference sources, sensor excitation circuits, and analog front-end biasing requiring stable component supply with guaranteed long-term continuity.
Supply support for HZS12C1LTD-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 leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and infrastructure markets.
The HZS-L Series was developed by Renesas specifically for low-noise, high-stability voltage reference applications in test equipment, industrial controls, and precision analog systems-emphasizing zener impedance control, thermal resilience, and manufacturability.
FAQ
What is the exact zener voltage range for HZS12C1LTD-E?
The HZS12C1LTD-E has a guaranteed zener voltage range of 13.2 V minimum to 13.7 V maximum when tested at 0.5 mA zener current and 25°C ambient temperature. This 0.5 V tolerance reflects tight process control for precision reference use, and the value is confirmed in the official Renesas datasheet REJ03G0166-0300 Rev.3.00.
Does HZS12C1LTD-E support surface-mount assembly?
No, HZS12C1LTD-E uses the axial-lead MHD package (JEITA code GRZZ0002ZC-A) and is designed for through-hole mounting with 5 mm pitch compatibility. It is not a surface-mount device; alternatives like BZX84-C13 would be required for SMT layouts.
What is the maximum allowable reverse current before breakdown in HZS12C1LTD-E?
The HZS12C1LTD-E specifies a maximum reverse leakage current of 1 μA at VR = 2.0 V, measured at 25°C. This low leakage ensures minimal loading on high-impedance reference nodes and contributes to its suitability in precision analog circuits where bias current errors must be minimized.
Can HZS12C1LTD-E replace older HZ-series Zener diodes directly?
Yes, HZS12C1LTD-E is a direct functional upgrade to the legacy HZ series with identical MHD package and pinout, but offers significantly lower noise (≈1/3–1/10) and improved zener impedance. No PCB changes are needed, though design validation should confirm noise and regulation performance meets updated system requirements.
Is HZS12C1LTD-E rated for automotive applications?
No, HZS12C1LTD-E is classified as a "Standard" quality grade device per Renesas documentation and is intended for computers, office equipment, industrial robots, and test equipment-not automotive or safety-critical systems. For AEC-Q200 qualified Zeners, consult Renesas' dedicated automotive product lines.
HZS12C1LTD-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:
- -
HZS12C1LTD-E FAQ
1.How can I place an order for HZS12C1LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS12C1LTD-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 HZS12C1LTD-E reliable?
The price and inventory of HZS12C1LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS12C1LTD-E is usually 5 days.
3.What payment methods are accepted for HZS12C1LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS12C1LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS12C1LTD-E?
HZS12C1LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS12C1LTD-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 HZS12C1LTD-E?
For technical support, including HZS12C1LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS12C1LTD-E requirements.
6.How does Aetrix verify that HZS12C1LTD-E is sourced from the original manufacturer or authorized distributors?
All HZS12C1LTD-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 HZS12C1LTD-E meets industry standards.
7.What is the process for return or replacement of HZS12C1LTD-E?
All HZS12C1LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS12C1LTD-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 HZS12C1LTD-E part is unused and in its original packaging.
Return procedure for HZS12C1LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS12C1LTD-E Tags
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