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Renesas HZ11HB2-E
- Part No.:
- HZ11HB2-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ11HB2-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
HZ11HB2-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 10.6 V (min 10.4 V, max 10.8 V), dynamic resistance of 80 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - used in reference supplies for instrumentation amplifiers and sensor signal conditioning.
For engineers reviewing the HZ11HB2-E datasheet, HZ11HB2-E pinout, HZ11HB2-E application, or HZ11HB2-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), low noise performance versus standard HZ series, DO-35 package compatibility, and thermal stability across −55°C to +175°C storage range.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a silicon planar junction, with specified test conditions of DC current (IZ = 0.5 mA) and Ta = 25°C. Its low dynamic resistance (80 Ω) and reduced noise level (≈1/3–1/10 of HZ series) stem from optimized doping and junction geometry.
The HZ11HB2-E exhibits a zener voltage temperature coefficient of approximately −0.02 %/°C near 10.6 V (per Fig.2), enabling stable regulation in ambient temperatures up to 75°C before derating applies, and is rated for reverse leakage ≤1 μA at VR = 8.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.4 V min / 10.8 V max at IZ = 0.5 mA - defines tight 0.4 V tolerance band for stable reference generation |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous operation in compact PCB layouts with limited heatsinking |
| Reverse Leakage (IR) | ≤1 μA max at VR = 8.0 V - preserves accuracy in high-impedance bias networks |
| Junction Temperature (Tj) | 175°C max - enables use in thermally demanding industrial environments without derating failure |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - industry-standard axial leaded glass package with orange body and navy blue cathode band |
Pinout & Package
DO-35 glass axial package: cylindrical body (φD ≈ 2.0 mm, L ≈ 26.0 mm), orange-colored body with navy blue cathode band; mass ≈ 0.13 g; JEITA code GRZZ0002ZB-A; RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Negative terminal of zener junction | Connected to higher potential node; polarity must be observed to enable reverse-bias regulation |
| 2 (Anode) | Positive terminal of zener junction | Connected to circuit ground or lower potential; completes bias path for stable VZ establishment |
Key Features
| Feature | Design Value |
|---|---|
| Noise reduction vs. HZ series | Approximately 1/3–1/10 lower diode noise - directly improves SNR in low-level analog front-ends |
| Zener voltage range coverage | 10.4–10.8 V window - supports precise trimming of 10.6 V references without external resistive dividers |
| Low zener impedance | 80 Ω dynamic resistance - minimizes regulation error under varying load currents up to ±1 mA |
| Thermal stability | −0.02 %/°C tempco near 10.6 V - limits drift to <±0.2% over 0–70°C ambient range |
Applications
| Instrumentation Amplifier Reference | Temperature Sensor Biasing |
|---|---|
Use Scenario: Providing stable excitation voltage to bridge-based pressure sensors in data acquisition modules. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference establishing fixed bias point for Wheatstone bridge operation. Use Value: Low 80 Ω dynamic resistance maintains <0.5 mV regulation shift across 0–1 mA bridge current variation. | Use Scenario: Supplying calibrated bias current to silicon bandgap temperature sensors in HVAC control units. IC Role / Device Role / Timing Role: Precision current source element via series resistor, leveraging tight VZ tolerance. Use Value: ±0.2 V zener voltage window enables ±0.5°C absolute temperature accuracy without calibration. |
| ADC Voltage Reference Buffer | Low-Drift Op-Amp Compensation |
Use Scenario: Stabilizing reference input to 16-bit SAR ADCs in medical ECG front-ends. IC Role / Device Role / Timing Role: Low-noise shunt reference feeding op-amp buffer stage prior to ADC input. Use Value: Diode noise reduction preserves >90 dB SNR in sub-100 kHz signal band critical for biopotential measurement. | Use Scenario: Compensating input offset drift in chopper-stabilized op-amps used in strain gauge interfaces. IC Role / Device Role / Timing Role: Stable voltage node for trimming network and bias stabilization in precision amplifier ICs. Use Value: −0.02 %/°C tempco contributes <±1 μV/°C drift to overall amplifier offset specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | Zener voltage 10 V ±5%, rd = 17 Ω, Pd = 1 W, DO-41 package | Higher power but wider VZ tolerance and no low-noise optimization | Preferred where power headroom >400 mW is required and noise is secondary |
| BZX85C10 | Zener voltage 10 V ±5%, rd = 20 Ω, Pd = 1.3 W, DO-41 package | Lower dynamic resistance but uncharacterized noise performance and looser VZ spec | Selected when cost sensitivity outweighs need for sub-μV noise floor in signal chains |
Compared with 1N4740A and BZX85C10, the HZ11HB2-E trades higher power rating for tighter 0.4 V VZ tolerance, documented low-noise behavior, and DO-35 footprint compatibility - making it optimal for space-constrained, noise-critical 10.6 V reference designs.
Availability
HZ11HB2-E is available at Aetrix Electronics and suitable for precision voltage reference, sensor biasing, and analog signal conditioning applications requiring stable component supply and long-term parametric consistency.
Supply support for HZ11HB2-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZ-L Series was designed specifically for low-noise, high-stability voltage reference applications in precision analog systems - extending the legacy HZ series with improved noise, tighter tolerances, and enhanced thermal characteristics.
FAQ
What is the exact zener voltage range for HZ11HB2-E?
The HZ11HB2-E has a guaranteed zener voltage range of 10.4 V minimum to 10.8 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 0.4 V window reflects its "B2" variant designation within the HZ11xxL family and enables precise 10.6 V nominal regulation without external trimming.
Does HZ11HB2-E have a specified noise performance metric?
Yes - the HZ-L Series datasheet states that diode noise is approximately 1/3 to 1/10 lower than the standard HZ series. While no quantitative nV/√Hz value is published, this comparative specification is confirmed across all HZ-L variants including HZ11HB2-E and is attributable to refined junction fabrication.
What is the cathode identification method on HZ11HB2-E?
The cathode of HZ11HB2-E is marked by a navy blue band on the orange-colored DO-35 glass body. Pin 1 (cathode) is the lead adjacent to this band; Pin 2 (anode) is the opposite lead. This marking aligns with JEITA standard GRZZ0002ZB-A packaging.
Can HZ11HB2-E replace standard 10 V Zener diodes in existing designs?
HZ11HB2-E can replace 10 V Zeners only if the design accommodates its 10.4–10.8 V range and DO-35 footprint. It is not a drop-in substitute for 10.0 V parts like 1N4740A due to voltage offset and tighter tolerance; redesign of bias networks may be needed to maintain operating point.
What is the maximum allowable reverse current before regulation degrades?
Regulation remains stable up to IZ = 0.5 mA per datasheet test condition. The device supports higher currents (up to Pd/VZ ≈ 37.7 mA at 10.6 V), but dynamic resistance increases beyond 0.5 mA - verified at 80 Ω max at 0.5 mA, rising to ~120 Ω at 5 mA per typical curves in the HZ-L family documentation.
HZ11HB2-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:
- -
HZ11HB2-E FAQ
1.How can I place an order for HZ11HB2-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11HB2-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 HZ11HB2-E reliable?
The price and inventory of HZ11HB2-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11HB2-E is usually 5 days.
3.What payment methods are accepted for HZ11HB2-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11HB2-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11HB2-E?
HZ11HB2-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11HB2-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 HZ11HB2-E?
For technical support, including HZ11HB2-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11HB2-E requirements.
6.How does Aetrix verify that HZ11HB2-E is sourced from the original manufacturer or authorized distributors?
All HZ11HB2-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 HZ11HB2-E meets industry standards.
7.What is the process for return or replacement of HZ11HB2-E?
All HZ11HB2-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11HB2-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 HZ11HB2-E part is unused and in its original packaging.
Return procedure for HZ11HB2-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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