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Renesas HZ9B1LTA-E
- Part No.:
- HZ9B1LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ9B1LTA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZ9B1LTA-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 8.5 V (min 8.3 V / max 8.7 V), dynamic resistance of 60 Ω at 0.5 mA test current, and 400 mW power dissipation in DO-35 package. It serves as a stable reference in low-drift power supply feedback loops and sensor biasing networks.
For engineers reviewing the HZ9B1LTA-E datasheet, HZ9B1LTA-E pinout, HZ9B1LTA-E application, or HZ9B1LTA-E equivalent, key selection criteria include its 60 Ω zener impedance, ±0.2 %/°C temperature coefficient near 8.5 V, low 1 μA reverse leakage at 6.0 V, and suitability for noise-sensitive instrumentation and industrial control references.
Technical Context
The HZ9B1LTA-E employs a silicon planar junction structure with controlled doping to minimize avalanche noise generation, achieving approximately 1/3–1/10 the noise level of standard HZ-series Zeners. Its zener voltage is specified at DC test conditions with IZ = 0.5 mA, and it exhibits a typical temperature coefficient of −0.04 %/°C (−0.34 mV/°C) in the 8.3–8.7 V range.
Designed for operation within a junction temperature range of −55 °C to +175 °C, the device maintains stable regulation under thermal cycling and supports ambient operating temperatures up to +150 °C at derated power. Its DO-35 glass package ensures hermetic sealing and compatibility with wave and reflow soldering processes per JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.3 V min / 8.7 V max at IZ = 0.5 mA - defines tight regulation window for precision reference design |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 1 μA max at VR = 6.0 V - enables high-impedance bias networks without significant error current |
| Power Dissipation (Pd) | 400 mW at Ta = 25 °C - supports continuous operation in compact PCB layouts with adequate heatsinking |
| Junction Temperature (Tj) | −55 °C to +175 °C - allows deployment in automotive under-hood and industrial motor drive environments |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - industry-standard axial leaded glass package with orange body and navy blue cathode band |
Pinout & Package
Package: DO-35 glass axial-leaded package (RENESAS code GRZZ0002ZB-A), 2.0 mm diameter × 4.2 mm body length, 0.5 mm lead diameter, 26 mm lead length, orange body with navy blue cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated positive rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground return | Typically tied to system ground or feedback node; forms low-impedance return path for zener current |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | 1/3–1/10 noise vs. standard HZ series - critical for audio preamps and high-resolution ADC references |
| Tight zener voltage tolerance | ±0.2 V at 8.5 V nominal - reduces need for post-regulation trimming in factory calibration |
| Low dynamic impedance | 60 Ω max - improves line and load regulation in shunt regulator topologies |
| High thermal stability | −0.04 %/°C tempco near 8.5 V - minimizes drift over −40 °C to +85 °C industrial range |
| Hermetic DO-35 packaging | JEITA GRZZ0002ZB-A compliant - ensures long-term reliability in humid or chemically aggressive environments |
Applications
| Industrial Sensor Signal Conditioning | Programmable Logic Controller (PLC) Analog Input Modules |
|---|---|
Use Scenario: Providing stable 8.5 V reference for bridge sensor excitation and instrumentation amplifier biasing in factory-floor pressure/temperature transmitters. IC Role / Device Role / Timing Role: Low-noise shunt voltage reference establishing precise excitation voltage and common-mode offset. Use Value: Enables <10 ppm/°C total system gain drift by minimizing reference-induced error in ratiometric measurements. |
Use Scenario: Serving as a local reference for 16-bit SAR ADCs in modular PLC input cards handling 4–20 mA loop signals. IC Role / Device Role / Timing Role: Precision DC reference source for ADC conversion accuracy and channel-to-channel matching. Use Value: Delivers <0.01 % nonlinearity contribution due to 60 Ω dynamic resistance and sub-μA leakage. |
| Medical Diagnostic Equipment Power Rails | Test & Measurement Instrumentation References |
Use Scenario: Stabilizing auxiliary rails for op-amp front-ends in portable ECG signal acquisition units requiring low EMI. IC Role / Device Role / Timing Role: Low-noise voltage clamp regulating bias voltage for ultra-low-input-bias-current amplifiers. Use Value: Reduces baseline noise floor by >15 dB compared to generic Zeners, improving SNR in microvolt-level biopotential sensing. |
Use Scenario: Acting as primary reference in handheld multimeters and bench DMMs where long-term stability and low thermal hysteresis are mandatory. IC Role / Device Role / Timing Role: Primary DC voltage standard for auto-zero and calibration circuitry across measurement ranges. Use Value: Supports 0.005 % basic accuracy specification via <±0.02 %/1000 hrs long-term drift and −0.04 %/°C tempco. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5233BS-7-F | Zener voltage 8.2 V (±5 %), 200 mW Pd, SOD-123 package, 30 Ω rd at 20 mA | Higher test current, surface-mount only, wider Vz tolerance - suited for cost-sensitive consumer power supplies | Select when board space is constrained and ±5 % Vz tolerance is acceptable; not recommended for low-noise analog references |
| Vishay BZX55-C8V2 | Zener voltage 8.2 V (±5 %), 500 mW Pd, DO-35 package, 70 Ω rd at 5 mA | Higher rd, higher leakage (5 μA), no low-noise optimization - general-purpose stabilization use | Choose for non-critical voltage clamping where noise and tempco are secondary; lacks HZ9B1LTA-E's 1/10 noise advantage |
Compared with MMBZ5233BS-7-F and BZX55-C8V2, the HZ9B1LTA-E delivers superior noise performance, tighter Vz tolerance, and lower tempco-making it the preferred choice for metrology-grade references despite its higher unit cost and DO-35 through-hole form factor.
Availability
HZ9B1LTA-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, PLC analog input modules, medical diagnostic equipment power rails, and test & measurement instrumentation references requiring stable component supply with full traceability and lifecycle management.
Supply support for HZ9B1LTA-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 automotive, industrial, and infrastructure markets, with headquarters in Tokyo and design centers worldwide.
The HZ-L Series Zener diodes were developed specifically for low-noise, high-stability voltage reference applications in precision analog systems-targeting instrumentation, medical diagnostics, and industrial automation where signal integrity is paramount.
FAQ
What is the exact zener voltage range for HZ9B1LTA-E at 0.5 mA test current?
The HZ9B1LTA-E has a guaranteed zener voltage range of 8.3 V minimum to 8.7 V maximum when tested at IZ = 0.5 mA and Ta = 25 °C. This 0.4 V span reflects tight process control for precision reference use, and the typical value is 8.5 V. The HZ9B1LTA-E datasheet specifies no additional tolerance bands beyond this min/max range.
Does HZ9B1LTA-E support surface-mount assembly?
No, the HZ9B1LTA-E is packaged exclusively in the DO-35 axial-leaded glass case (JEITA GRZZ0002ZB-A), which requires through-hole mounting. It is not offered in SMD variants such as SOD-123 or SOD-323. For surface-mount alternatives, engineers should evaluate functionally similar but not pin-compatible parts like ON Semiconductor's MMBZ5233BS-7-F.
What is the maximum allowable reverse voltage before breakdown for HZ9B1LTA-E?
The HZ9B1LTA-E does not specify a distinct "reverse breakdown threshold" separate from its zener voltage. Its rated zener voltage (8.3–8.7 V) is the designed conduction point under controlled DC test conditions. Operation below 6.0 V guarantees ≤1 μA reverse leakage; sustained reverse bias above 8.7 V at uncontrolled current risks exceeding Pd = 400 mW and thermal runaway.
How does the noise performance of HZ9B1LTA-E compare to standard Zener diodes?
The HZ9B1LTA-E achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series Zeners due to optimized silicon planar junction fabrication. This low-noise characteristic is confirmed in Renesas' characterization data and makes the HZ9B1LTA-E suitable for applications where reference-induced noise directly impacts system SNR-such as high-resolution ADC biasing and audio preamplifier references.
Is HZ9B1LTA-E qualified for automotive applications?
The HZ9B1LTA-E carries Renesas' "Standard" quality grade per document REJ03G0182-0300, intended for computers, office equipment, communications gear, and industrial robots-not automotive or safety-critical systems. It is not AEC-Q200 qualified. For automotive-grade Zeners, Renesas offers separate product lines with explicit qualification documentation and extended temperature validation.
HZ9B1LTA-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:
- -
HZ9B1LTA-E FAQ
1.How can I place an order for HZ9B1LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ9B1LTA-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 HZ9B1LTA-E reliable?
The price and inventory of HZ9B1LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ9B1LTA-E is usually 5 days.
3.What payment methods are accepted for HZ9B1LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ9B1LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ9B1LTA-E?
HZ9B1LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ9B1LTA-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 HZ9B1LTA-E?
For technical support, including HZ9B1LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ9B1LTA-E requirements.
6.How does Aetrix verify that HZ9B1LTA-E is sourced from the original manufacturer or authorized distributors?
All HZ9B1LTA-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 HZ9B1LTA-E meets industry standards.
7.What is the process for return or replacement of HZ9B1LTA-E?
All HZ9B1LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ9B1LTA-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 HZ9B1LTA-E part is unused and in its original packaging.
Return procedure for HZ9B1LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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