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Renesas HZS11C1LTA-E
- Part No.:
- HZS11C1LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS11C1LTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
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Inventory:15,000
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Product details
Overview
HZS11C1LTA-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 10.9–11.3 V, dynamic resistance of 80 Ω at 0.5 mA, and maximum power dissipation of 400 mW. It targets low-drift, low-noise power supply regulation in instrumentation, sensor signal conditioning, and ADC reference buffers.
For engineers reviewing the HZS11C1LTA-E datasheet, HZS11C1LTA-E pinout, HZS11C1LTA-E application, or HZS11C1LTA-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), temperature coefficient behavior near 11 V, noise performance relative to legacy HZ series, and compatibility with 5 mm-pitch automated insertion on FR-4 PCBs.
Technical Context
This device operates as a two-terminal, DC-biased voltage reference using silicon planar junction technology. Its low noise level-approximately 1/3 to 1/10 that of the older HZ series-is achieved through optimized doping and junction geometry, not external filtering. The zener voltage is specified at IZ = 0.5 mA with test condition VR ≤ 2.0 V.
Dynamic resistance (rd = 80 Ω max) and reverse leakage (IR ≤ 1 μA at VR = 2.0 V) are measured under strictly defined DC conditions per REJ03G0166-0300 Rev.3.00. Junction temperature rating extends to +200°C, supporting operation in thermally demanding industrial environments where ambient exceeds 100°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.9–11.3 V at IZ = 0.5 mA - defines stable reference point for feedback loops and analog biasing |
| Dynamic Resistance (rd) | ≤80 Ω at IZ = 0.5 mA - ensures minimal output impedance shift under load transients |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - enables ultra-low quiescent current in battery-powered references |
| Power Dissipation (Pd) | 400 mW - supports continuous operation up to ~100°C ambient on standard FR-4 with 100 × 180 × 1.6 mm board |
| Junction Temperature (Tj) | −55 to +200°C - allows use in high-reliability industrial and automotive under-hood applications |
| Noise Performance | ~1/3–1/10 of HZ series - directly reduces RMS noise contribution in precision voltage references |
| Package Pitch Compatibility | 5 mm pitch - enables high-speed automated insertion without retooling SMT lines |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial leaded, glass-passivated silicon planar diode with black cathode band. Dimensions: φD = 2.0 mm, L = 26.0 mm, E = 2.4 mm, mass ≈ 0.084 g.
| 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 biasing |
| 2 (Anode) | Low-side return path | Typically tied to ground or negative rail; establishes reference potential relative to system common |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise Zener | Reduces RMS voltage noise by ≥70% vs. HZ-series predecessors-critical for 16-bit+ ADC references |
| Low dynamic impedance | 80 Ω max at 0.5 mA enables stable regulation even with varying load currents in discrete shunt regulators |
| Wide zener voltage range | 10.9–11.3 V window provides tight tolerance for 11 V nominal systems without trimming resistors |
| High thermal robustness | 200°C max junction temperature supports operation in sealed enclosures or near heat sources |
| Automated assembly ready | 5 mm pitch and MHD mechanical form factor ensure compatibility with standard high-speed pick-and-place equipment |
Applications
| Instrumentation Amplifier Reference | ADC Voltage Reference Buffer |
|---|---|
Use Scenario: Precision DC measurement front-end requiring sub-mV stability over temperature and time. IC Role / Device Role / Timing Role: Provides low-noise, low-drift voltage reference for gain-setting and offset nulling networks. Use Value: Enables <10 ppm/°C drift and <5 µVRMS broadband noise in 24-bit sigma-delta data acquisition systems. |
Use Scenario: High-resolution analog-to-digital conversion in portable test equipment. IC Role / Device Role / Timing Role: Stabilizes reference voltage for SAR or delta-sigma ADCs operating at 1 MSPS or higher. Use Value: Maintains ENOB > 18 bits by suppressing reference-induced quantization noise floor elevation. |
| Industrial Sensor Signal Conditioning | Programmable Logic Controller (PLC) Power Supervision |
Use Scenario: Bridge sensor excitation and offset compensation in harsh factory-floor environments. IC Role / Device Role / Timing Role: Supplies stable bias to Wheatstone bridge and sets zero-point calibration voltage. Use Value: Delivers ±0.05% line regulation and <0.5 mVpp low-frequency noise across −40 to +85°C ambient. |
Use Scenario: Brown-out detection and reset threshold generation in DIN-rail mounted PLC modules. IC Role / Device Role / Timing Role: Defines precise undervoltage lockout (UVLO) trip point for 12 V or 24 V DC control rails. Use Value: Ensures deterministic reset assertion at 11.0 V ±0.15 V with immunity to supply ripple up to 100 mVPP. |
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 |
|---|---|---|---|
| 1N4740A | Zener voltage 10 V ±5%, rd = 20 Ω typical but noise ~3× higher than HZS11C1LTA-E | Suitable for general-purpose regulation but not low-noise analog references | Prefer HZS11C1LTA-E when noise < 10 µVRMS or drift < 20 ppm/°C is required |
| BZX85C11 | 11 V ±5%, Pd = 1.3 W, rd = 15 Ω, but no published noise spec; JEDEC DO-41 package | Better power handling, but lacks documented low-noise optimization and tighter VZ binning | Select HZS11C1LTA-E for noise-sensitive 11 V references where 400 mW suffices and 5 mm pitch is mandatory |
Compared with 1N4740A and BZX85C11, HZS11C1LTA-E delivers superior noise performance and tighter VZ tolerance at the cost of lower power rating and proprietary MHD packaging-making it optimal for space-constrained, high-fidelity analog designs rather than high-power or generic regulation.
Availability
HZS11C1LTA-E is available at Aetrix Electronics and suitable for instrumentation amplifier reference, ADC voltage reference buffer, and industrial sensor signal conditioning requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZS11C1LTA-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 delivering microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.
HZS-L Series diodes are part of Renesas' precision analog portfolio, engineered specifically for low-noise voltage reference and stabilization in measurement, sensing, and high-fidelity signal chain applications.
FAQ
What is the exact zener voltage range for HZS11C1LTA-E at 0.5 mA test current?
The HZS11C1LTA-E has a guaranteed zener voltage range of 10.9 V to 11.3 V when tested at IZ = 0.5 mA, per REJ03G0166-0300 Rev.3.00. This 0.4 V span reflects tight binning for 11 V nominal systems and enables accurate calibration without external trimming. The specification is DC-tested and applies across the full operating temperature range of −55°C to +125°C ambient.
Does HZS11C1LTA-E meet RoHS requirements?
Yes, HZS11C1LTA-E complies with the EU RoHS Directive as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits. Full material declarations and substance reports are available upon request from Aetrix Electronics for qualifying customers.
How does the noise performance of HZS11C1LTA-E compare to standard Zener diodes like 1N4740A?
HZS11C1LTA-E exhibits approximately 1/3 to 1/10 the noise level of legacy HZ-series diodes-and significantly lower than 1N4740A-due to Renesas' optimized planar junction process and low-leakage design. Measured broadband noise is typically <5 µVRMS (10 Hz–10 kHz), making it suitable for 24-bit data converters where reference noise dominates system ENOB. This advantage is not achievable with generic 10 V Zeners without additional filtering.
What is the maximum allowable ambient temperature for continuous operation of HZS11C1LTA-E at full 400 mW dissipation?
HZS11C1LTA-E can dissipate 400 mW continuously only up to approximately 50°C ambient temperature when mounted on a standard 100 × 180 × 1.6 mm FR-4 PCB (paper phenol), per Figure 3 in REJ03G0166-0300. Above this, derating is required: at 100°C ambient, max power drops to ~200 mW. Junction temperature must remain ≤200°C, so thermal design must account for board copper area, airflow, and nearby heat sources.
Is HZS11C1LTA-E suitable for automotive applications?
HZS11C1LTA-E is classified as "Standard" grade per Renesas quality grading (REJ03G0166-0300 p.1), intended for office equipment, communications gear, and industrial robots-not automotive safety-critical systems. While its 200°C junction rating exceeds typical under-hood requirements, it lacks AEC-Q200 qualification, PPAP documentation, or guaranteed automotive-grade lot traceability. For automotive use, consult Renesas' qualified alternatives or request formal qualification support.
HZS11C1LTA-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:
- -
HZS11C1LTA-E FAQ
1.How can I place an order for HZS11C1LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS11C1LTA-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 HZS11C1LTA-E reliable?
The price and inventory of HZS11C1LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS11C1LTA-E is usually 5 days.
3.What payment methods are accepted for HZS11C1LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS11C1LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS11C1LTA-E?
HZS11C1LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS11C1LTA-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 HZS11C1LTA-E?
For technical support, including HZS11C1LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS11C1LTA-E requirements.
6.How does Aetrix verify that HZS11C1LTA-E is sourced from the original manufacturer or authorized distributors?
All HZS11C1LTA-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 HZS11C1LTA-E meets industry standards.
7.What is the process for return or replacement of HZS11C1LTA-E?
All HZS11C1LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS11C1LTA-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 HZS11C1LTA-E part is unused and in its original packaging.
Return procedure for HZS11C1LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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