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Renesas HZ11C2LTD-E
- Part No.:
- HZ11C2LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ11C2LTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZ11C2LTD-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 11.1–11.6 V, dynamic resistance of 80 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C. It is widely deployed in regulated power supplies, sensor excitation circuits, and ADC reference buffers where low noise and stable breakdown behavior are critical.
For engineers reviewing the HZ11C2LTD-E datasheet, HZ11C2LTD-E pinout, HZ11C2LTD-E application, or HZ11C2LTD-E equivalent, this page delivers verified electrical specifications, DO-35 package details, thermal derating guidance, low-noise performance context, and validated alternative parts for supply continuity and design flexibility.
Technical Context
This device operates as a two-terminal voltage reference using controlled avalanche breakdown in a silicon planar junction. Its zener voltage is specified at 0.5 mA test current with DC excitation, and its low dynamic impedance (80 Ω) ensures minimal output variation under load transients. The −0.06 %/°C temperature coefficient near 11.3 V enables predictable drift behavior across industrial temperature ranges.
The HZ11C2LTD-E exhibits approximately 1/3–1/10 lower diode noise than legacy HZ-series Zeners, achieved through refined epitaxial layer control and passivation. Its DO-35 glass package supports manual or automated insertion into PCBs with standard 2.5 mm lead spacing and complies with JEITA code GRZZ0002ZB-A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.1–11.6 V at IZ = 0.5 mA - defines stable regulation point for feedback loops and reference generation |
| Dynamic Resistance (rd) | 80 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 DC power handling before thermal derating applies |
| Junction Temperature (Tj) | −55 to +175°C - enables operation in extended industrial environments without external heatsinking |
| Reverse Leakage (IR) | 1 μA max at VR = 8.0 V - ensures minimal error current in high-impedance bias networks |
| Temperature Coefficient (γZ) | ≈ −0.06 %/°C - provides predictable, low-drift voltage reference over −40°C to +125°C ambient |
Pinout & Package
The HZ11C2LTD-E is housed in a DO-35 (JEITA GRZZ0002ZB-A / SC-40) axial glass package with cathode band marking. Leads are tinned copper-clad steel, compatible with wave and reflow soldering per J-STD-020 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown terminal | Connected to higher-potential node in reverse-biased configuration; carries full zener current during regulation |
| 2 (Anode) | Reference ground terminal | Typically tied to circuit common; establishes return path for zener current and defines reference potential |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise reduced to ~1/3–1/10 of standard HZ-series - improves SNR in precision instrumentation front-ends |
| Stable low-impedance regulation | 80 Ω dynamic resistance at 0.5 mA - minimizes output voltage shift under varying load conditions |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2–38 V - allows consistent design methodology across multiple reference points |
| High-temperature reliability | 175°C max junction temperature - supports use in under-hood automotive modules and industrial motor drives |
| Standardized DO-35 footprint | Compatible with legacy board layouts and automated assembly tooling - simplifies drop-in replacement upgrades |
Applications
| Industrial Power Supply Reference | High-Resolution ADC Biasing |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Provides precise, low-drift voltage reference for optocoupler-coupled error amplifiers. Use Value: Enables ±1% output regulation accuracy over −40°C to +105°C ambient due to low γZ and stable rd. |
Use Scenario: Supplying excitation voltage to bridge-based pressure sensors feeding 24-bit sigma-delta ADCs. IC Role / Device Role / Timing Role: Serves as low-noise analog reference source for ratiometric measurement systems. Use Value: Reduces system noise floor by >10 dB compared to standard Zeners, improving effective resolution by ≥1 LSB. |
| Programmable Logic Controller Input Conditioning | Automotive Sensor Signal Conditioning |
|
Use Scenario: Clamping and level-shifting 24 V field signals to 5 V logic-compatible levels in PLC I/O modules. IC Role / Device Role / Timing Role: Functions as precision shunt clamp with defined breakdown threshold and fast transient response. Use Value: Maintains signal integrity during ESD events while limiting voltage overshoot to ≤12.5 V due to tight VZ tolerance. |
Use Scenario: Providing stable bias to NTC thermistors in engine coolant temperature sensing circuits. IC Role / Device Role / Timing Role: Delivers low-drift reference voltage in harsh under-hood environments subject to thermal cycling. Use Value: Ensures <±2°C measurement accuracy over 15-year service life via low aging drift and 175°C Tj capability. |
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 |
|---|---|---|---|
| ON Semiconductor MMBZ5242B | Zener voltage 12 V (±5%), rd = 33 Ω, Pd = 350 mW, SOD-123 package | Higher VZ, lower rd, but 30% less power rating and surface-mount only | Preferred for space-constrained PCBs where 12 V tolerance is acceptable and thermal margin permits lower Pd |
| Vishay BZX55C11 | Zener voltage 11 V (±5%), rd = 100 Ω, Pd = 500 mW, DO-35 package | Same package, wider VZ tolerance, higher rd, no published noise data | Suitable for cost-sensitive industrial designs where ultra-low noise is not required and tighter VZ spec is relaxed |
Compared with MMBZ5242B and BZX55C11, the HZ11C2LTD-E offers superior noise performance and tighter VZ tolerance within the same DO-35 form factor, making it optimal for metrology-grade references-though its 400 mW rating sits between the other two alternatives' power limits.
Availability
HZ11C2LTD-E is available at Aetrix Electronics and suitable for industrial power supplies, precision sensor interfaces, and automotive signal conditioning requiring stable component supply, long-lifecycle availability, and traceable sourcing from Renesas-authorized channels.
Supply support for HZ11C2LTD-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 specializing in microcontrollers, analog power devices, and trusted interface solutions for industrial, automotive, and infrastructure markets.
The HZ-L series was developed specifically for low-noise, high-stability voltage reference applications in analog signal chains and power management subsystems where traditional Zener diodes introduce unacceptable noise or drift.
FAQ
What is the exact zener voltage range for HZ11C2LTD-E at 0.5 mA test current?
The HZ11C2LTD-E has a guaranteed zener voltage range of 11.1 V to 11.6 V when measured at IZ = 0.5 mA and Ta = 25°C, as confirmed in the Renesas REJ03G0182-0300 datasheet revision 3.00. This tight 500 mV span supports high-accuracy regulation without post-manufacturing sorting.
Does HZ11C2LTD-E have documented low-noise performance relative to standard Zener diodes?
Yes - the HZ11C2LTD-E datasheet explicitly states its diode noise level is approximately 1/3 to 1/10 lower than the legacy HZ series. This improvement stems from proprietary epitaxial process control and is validated across the full HZ-L family, including the HZ11C2LTD-E variant.
Is HZ11C2LTD-E qualified for automotive applications per AEC-Q200?
No - the HZ11C2LTD-E is classified as a "Standard" quality grade device per Renesas documentation and is intended for computers, office equipment, and industrial systems. It is not AEC-Q200 qualified, and Renesas explicitly excludes automotive use unless separately authorized in writing.
What is the maximum allowable ambient temperature before thermal derating begins for HZ11C2LTD-E?
Thermal derating for the HZ11C2LTD-E begins at Ta = 25°C, with linear reduction of power dissipation above that point. At 100°C ambient, its usable power drops to approximately 200 mW, based on the published "Power Dissipation vs. Ambient Temperature" curve in Figure 3 of the datasheet.
Can HZ11C2LTD-E be used in place of HZ11C2L without modification?
Yes - the HZ11C2LTD-E is a direct replacement for HZ11C2L, sharing identical electrical specifications, DO-35 packaging, pinout, and thermal characteristics. The "-E" suffix denotes updated traceability and packaging per Renesas' post-merger documentation standards, with no functional change to the HZ11C2LTD-E device itself.
HZ11C2LTD-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:
- -
HZ11C2LTD-E FAQ
1.How can I place an order for HZ11C2LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11C2LTD-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 HZ11C2LTD-E reliable?
The price and inventory of HZ11C2LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11C2LTD-E is usually 5 days.
3.What payment methods are accepted for HZ11C2LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11C2LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11C2LTD-E?
HZ11C2LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11C2LTD-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 HZ11C2LTD-E?
For technical support, including HZ11C2LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11C2LTD-E requirements.
6.How does Aetrix verify that HZ11C2LTD-E is sourced from the original manufacturer or authorized distributors?
All HZ11C2LTD-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 HZ11C2LTD-E meets industry standards.
7.What is the process for return or replacement of HZ11C2LTD-E?
All HZ11C2LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11C2LTD-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 HZ11C2LTD-E part is unused and in its original packaging.
Return procedure for HZ11C2LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ11C2LTD-E Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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