My Inquiry
My Account
Renesas HZ11C1L-E
- Part No.:
- HZ11C1L-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
HZ11C1L-E.pdf
- Description:
- DIODE ZENER 11V 400MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:17,300
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZ11C1L-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 10.9–11.3 V, 400 mW power dissipation, 80 Ω dynamic impedance at 0.5 mA, and DO-35 glass package. It serves as a stable reference in sensor signal conditioning, low-drift power supplies, and instrumentation front-ends.
For engineers reviewing the HZ11C1L-E datasheet, HZ11C1L-E pinout, HZ11C1L-E application, or HZ11C1L-E equivalent, key selection criteria include its low noise level (≈1/3–1/10 that of standard HZ series), tight zener voltage tolerance, temperature coefficient behavior near zero crossing (~0.02 %/°C at ~11 V), and suitability for DC-stabilized bias networks requiring minimal thermal drift.
Technical Context
The HZ11C1L-E operates as a two-terminal shunt regulator using silicon planar junction technology, with zener breakdown mechanism dominant in its 11 V range. Its low leakage current (<1 μA at VR = 2.0 V) and low dynamic resistance (80 Ω at IZ = 0.5 mA) support high-accuracy DC reference generation.
Designed for DC operation only (per datasheet note), it exhibits a zener voltage temperature coefficient near zero (~0.02 %/°C) at this voltage level, minimizing drift across −55°C to +175°C ambient range. Junction temperature rating of 175°C enables use in thermally constrained industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.9–11.3 V at IZ = 0.5 mA - defines precise DC reference point for feedback or bias networks |
| Power Dissipation (Pd) | 400 mW - supports continuous regulation in compact PCB layouts without forced cooling |
| Dynamic Resistance (rd) | 80 Ω at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Reverse Current (IR) | <1 μA at VR = 2.0 V - reduces error current in high-impedance reference nodes |
| Junction Temperature (Tj) | −55°C to +175°C - enables deployment in automotive under-hood or industrial control enclosures |
| Noise Level | ≈1/3–1/10 of standard HZ series - critical for audio preamps, ADC references, and low-level sensor amplifiers |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A, Renesas code SC-40), orange body with navy-blue cathode band, mass 0.13 g, dimensions φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point | Connected to higher-potential node; reverse-biased operation requires cathode at positive potential relative to anode |
| 2 (Anode) | Zener cathode connection point | Typically tied to circuit ground or common reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise reduced to ≈10–33% of standard HZ-series devices-enables clean references in audio and measurement systems |
| Tight zener voltage tolerance | ±0.2 V window (10.9–11.3 V) at 0.5 mA-supports accurate calibration without post-trim |
| Low dynamic impedance | 80 Ω at 0.5 mA-maintains stable voltage under varying load currents in feedback loops |
| High thermal stability | Temperature coefficient near zero (~0.02 %/°C) at 11 V-minimizes drift in unregulated ambient conditions |
Applications
| Audio Signal Conditioning | Precision Sensor Biasing |
|---|---|
Use Scenario: Low-noise DC bias supply for electret microphone preamplifiers and op-amp input stages. IC Role / Device Role: Shunt voltage reference providing stable 11 V rail for JFET or CMOS input stage biasing. Use Value: Reduced diode noise directly lowers system input-referred noise floor, improving SNR by >10 dB versus standard Zeners. | Use Scenario: Excitation voltage source for strain gauge bridges and RTD interfaces in industrial transmitters. IC Role / Device Role: Precision, low-drift reference for Wheatstone bridge excitation and ratiometric ADC scaling. Use Value: 80 Ω dynamic impedance and <1 μA leakage ensure bridge balance stability and <0.01% gain error over temperature. |
| Industrial Power Monitor Reference | Programmable Logic Controller (PLC) Analog Input Protection |
Use Scenario: Stable reference for isolated DC-DC converter feedback in DIN-rail power supplies. IC Role / Device Role: Secondary-side zener clamp defining regulated output voltage in optocoupler feedback loop. Use Value: 400 mW rating and 175°C Tj allow reliable operation in enclosed, convection-limited enclosures up to 70°C ambient. | Use Scenario: Overvoltage clamping element on 4–20 mA analog input channels in PLC backplanes. IC Role / Device Role: Low-leakage shunt protector limiting transient-induced voltage excursion beyond ADC input range. Use Value: <1 μA reverse leakage preserves channel accuracy; DO-35 axial form factor fits legacy 0.3" pitch PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | Zener voltage 10 V ±5%, rd = 17 Ω at 25 mA, Pd = 1 W, DO-41 package | Higher power, higher test current, higher noise, larger footprint | Choose when higher power handling or lower dynamic impedance at high current is required; not suitable for ultra-low-noise or space-constrained designs |
| BZX55C11 | Zener voltage 11 V ±5%, rd = 100 Ω at 5 mA, Pd = 500 mW, DO-35 package | Wider voltage tolerance, higher test current, higher noise, same package | Acceptable where tighter VZ tolerance and lower noise are non-critical; verify leakage and tempco fit for precision use cases |
Compared with 1N4740A and BZX55C11, the HZ11C1L-E delivers superior noise performance and tighter VZ control at low bias current, making it preferred for battery-powered instrumentation and low-power analog signal chains where thermal and spectral purity are prioritized over raw power capacity.
Availability
HZ11C1L-E is available at Aetrix Electronics and suitable for precision analog reference design, industrial sensor interface development, and low-noise power supply stabilization requiring stable component supply and long-term obsolescence management.
Supply support for HZ11C1L-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 is a global semiconductor manufacturer specializing in microcontrollers, analog and power devices, and SoC solutions for automotive, industrial, and infrastructure markets.
The HZ-L Series is part of Renesas' precision analog portfolio, engineered specifically for low-noise, low-drift voltage reference applications in measurement, audio, and sensor signal conditioning systems.
FAQ
What is the zener voltage range for HZ11C1L-E?
The HZ11C1L-E has a specified zener voltage range of 10.9 V to 11.3 V when tested at IZ = 0.5 mA and Ta = 25°C. This narrow 0.4 V window reflects tight process control for precision reference applications, and the value is guaranteed per Renesas datasheet REJ03G0182-0300 Rev.3.00. The HZ11C1L-E is not rated for operation outside this defined test condition.
Is HZ11C1L-E suitable for AC-coupled or high-frequency applications?
No, the HZ11C1L-E is explicitly rated for DC operation only, as noted in the datasheet ("Tested with DC"). Its dynamic resistance and noise characteristics are characterized under steady-state DC bias, and no AC impedance, capacitance, or frequency response data is provided. For AC or switching applications, a different device type-such as a TVS diode or active reference IC-should be selected instead of the HZ11C1L-E.
What is the maximum reverse leakage current specification for HZ11C1L-E?
The HZ11C1L-E has a maximum reverse leakage current (IR) of 1 μA when tested at VR = 2.0 V and Ta = 25°C. This low leakage supports high-impedance reference nodes and minimizes error current in precision divider networks. The value is confirmed in the Electrical Characteristics table on page 2 of the official Renesas datasheet REJ03G0182-0300.
Does HZ11C1L-E have a specified temperature coefficient?
Yes-the HZ11C1L-E exhibits a zener voltage temperature coefficient (γZ) of approximately +0.02 %/°C near 11 V, as shown in Figure 2 of the datasheet. This near-zero coefficient minimizes drift over temperature and is a key advantage of the HZ-L series at this voltage point. The coefficient is measured and plotted across the full 5.2–38 V range, with the lowest magnitude occurring around 10–12 V.
What package type does HZ11C1L-E use, and is it RoHS-compliant?
The HZ11C1L-E uses the DO-35 glass axial package (JEITA code GRZZ0002ZB-A, Renesas code SC-40), with orange body and navy-blue cathode band. While the 2007 datasheet does not state RoHS status, Renesas confirms general RoHS compliance for HZ-L Series devices manufactured after 2006 per company policy; however, for formal compliance documentation, the specific lot date and material declaration for HZ11C1L-E should be obtained from Renesas or Aetrix Electronics.
HZ11C1L-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- HZ-L
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±1.82%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-35
HZ11C1L-E FAQ
1.How can I place an order for HZ11C1L-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11C1L-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 HZ11C1L-E reliable?
The price and inventory of HZ11C1L-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11C1L-E is usually 5 days.
3.What payment methods are accepted for HZ11C1L-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11C1L-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11C1L-E?
HZ11C1L-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11C1L-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 HZ11C1L-E?
For technical support, including HZ11C1L-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11C1L-E requirements.
6.How does Aetrix verify that HZ11C1L-E is sourced from the original manufacturer or authorized distributors?
All HZ11C1L-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 HZ11C1L-E meets industry standards.
7.What is the process for return or replacement of HZ11C1L-E?
All HZ11C1L-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11C1L-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 HZ11C1L-E part is unused and in its original packaging.
Return procedure for HZ11C1L-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ11C1L-E Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
