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Renesas HZS7A1LTA-E
- Part No.:
- HZS7A1LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS7A1LTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:10,100
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Product details
Overview
HZS7A1LTA-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 6.3 V to 6.6 V, maximum power dissipation of 400 mW, and dynamic resistance as low as 60 Ω at 3.5 mA test current - deployed in stabilized power supplies and reference circuits for industrial instrumentation.
For engineers reviewing the HZS7A1LTA-E datasheet, HZS7A1LTA-E pinout, HZS7A1LTA-E application, or HZS7A1LTA-E equivalent, this part serves as a low-noise, low-leakage, surface-mount-compatible Zener solution where tight voltage tolerance (±0.3 V), low temperature coefficient, and stable impedance under varying load conditions are critical selection criteria.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low noise level - approximately 1/3–1/10 that of the legacy HZ series - stems from optimized doping profile and junction geometry, enabling use in high-fidelity audio biasing and sensor excitation circuits.
Rated for 400 mW power dissipation and junction temperatures up to 200°C, the HZS7A1LTA-E maintains stable zener voltage across ambient temperatures from −55°C to +175°C, with a typical zener voltage temperature coefficient near zero for the 6.3–6.6 V range - confirmed by Figure 2 in the official datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.3 V (min) to 6.6 V (max) at IZ = 0.5 mA - defines precise DC reference point for feedback loops and analog signal conditioning. |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 3.5 mA - ensures minimal output voltage variation under load transients in regulated supplies. |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling. |
| Reverse Leakage Current (IR) | 1 μA max at VR = 2.0 V - reduces parasitic current draw in high-impedance reference nodes. |
| Junction Temperature (Tj) | 200°C maximum - enables reliable operation in thermally demanding industrial environments. |
| Storage Temperature | −55°C to +175°C - compatible with reflow soldering and extended outdoor deployment. |
Pinout & Package
The HZS7A1LTA-E is housed in the MHD package (JEITA code GRZZ0002ZC-A), a miniature axial-lead plastic package with 2.0 mm diameter and 26.0 mm body length, designed for 5 mm-pitch high-speed automatic insertion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation. |
| 2 (Anode) | Reference ground return | Completes current path; tied to system ground or negative rail in shunt regulator configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise performance | Diode noise ~1/3–1/10 that of HZ series - directly improves SNR in precision ADC references and microphone bias networks. |
| Low zener impedance | 60 Ω max at 3.5 mA - minimizes AC ripple coupling into sensitive analog stages. |
| Wide operating temperature range | −55°C to +175°C storage; 200°C junction limit - supports deployment in automotive engine control and industrial motor drives. |
| Stable voltage tolerance | ±0.3 V over specified IZ range - eliminates need for post-calibration trimming in factory-set references. |
| High-speed insertion compatibility | MHD package with 5 mm pitch - enables automated assembly in high-volume power supply manufacturing. |
Applications
| Industrial Sensor Signal Conditioning | Audio Equipment Bias Supply |
|---|---|
Use Scenario: Providing stable excitation voltage to bridge-based pressure sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining constant 6.45 V bias across sensor Wheatstone bridge. Use Value: Low dynamic resistance (60 Ω) prevents gain drift during rapid load changes caused by sensor modulation. |
Use Scenario: Generating ultra-low-noise DC bias for condenser microphone preamplifiers in broadcast mixers. IC Role / Device Role / Timing Role: Low-noise zener reference replacing higher-noise TL431-based solutions in phantom power circuitry. Use Value: Diode noise reduced to ~1/10 of HZ-series enables >95 dB SNR in front-end amplification stage. |
| Programmable Logic Controller (PLC) Power Rails | Test & Measurement Equipment Reference |
Use Scenario: Stabilizing +5 V auxiliary rail in modular I/O backplanes exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Temperature-compensated shunt regulator holding reference within ±0.5% from −40°C to +85°C. Use Value: Near-zero temperature coefficient in 6.3–6.6 V range minimizes thermal drift without external compensation. |
Use Scenario: Serving as primary voltage standard in handheld multimeter analog front-end calibration circuits. IC Role / Device Role / Timing Role: Precision 6.45 V reference source for ADC full-scale calibration and offset nulling. Use Value: Tight 6.3–6.6 V tolerance and low leakage (<1 μA) ensure repeatable calibration accuracy over 10,000+ measurement cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 (Nexperia) | 6.2 V nominal, ±5% tolerance (vs. ±0.3 V), 90 Ω rd, 300 mW Pd | Higher voltage drift and noise; suitable only for non-critical biasing | Select when cost sensitivity outweighs precision and noise requirements. |
| MMBZ5234B (ON Semiconductor) | 6.2 V nominal, ±5% tolerance, 100 Ω rd, 350 mW Pd, SOT-23 package | SMT-only; lacks axial MHD mechanical robustness and thermal mass for high-reliability industrial use | Choose for space-constrained PCBs where leaded reliability is not mandatory. |
Compared with BZX84-C6V2 and MMBZ5234B, the HZS7A1LTA-E delivers tighter voltage tolerance, lower dynamic resistance, and superior noise performance - making it the preferred choice for industrial-grade analog references where long-term stability and signal integrity are design-critical.
Availability
HZS7A1LTA-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, audio equipment bias supply, and programmable logic controller (PLC) power rails requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for HZS7A1LTA-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, and connectivity solutions for industrial, automotive, and infrastructure markets.
The HZS-L Series belongs to Renesas' discrete voltage reference portfolio, engineered specifically for low-noise, high-stability Zener regulation in mission-critical analog subsystems where legacy HZ-series noise limitations were unacceptable.
FAQ
What is the nominal zener voltage range of the HZS7A1LTA-E?
The HZS7A1LTA-E has a guaranteed zener voltage range of 6.3 V (minimum) to 6.6 V (maximum) when tested at 0.5 mA zener current, per the official Renesas datasheet REJ03G0166-0300 Rev.3.00. This tight ±0.3 V window enables accurate voltage referencing without post-production trimming, and the HZS7A1LTA-E maintains this specification across its qualified operating temperature range.
Does the HZS7A1LTA-E support high-temperature operation?
Yes, the HZS7A1LTA-E is rated for junction temperatures up to 200°C and storage temperatures from −55°C to +175°C. Its silicon planar construction and MHD package enable reliable operation in under-hood automotive modules and industrial motor drive control boards, and the HZS7A1LTA-E's low temperature coefficient in the 6.3–6.6 V range further enhances thermal stability without external compensation.
How does the noise performance of HZS7A1LTA-E compare to standard Zener diodes?
The HZS7A1LTA-E exhibits approximately 1/3 to 1/10 the noise level of the legacy HZ series, as documented in Renesas' official characterization. This reduction stems from refined junction fabrication and is critical in applications like microphone biasing and precision ADC references - and the HZS7A1LTA-E achieves this without sacrificing power handling or thermal robustness.
What package type is used for the HZS7A1LTA-E?
The HZS7A1LTA-E uses the MHD package (JEITA code GRZZ0002ZC-A), a 2.0 mm diameter axial-leaded plastic case with 26.0 mm body length and black cathode band marking. It is optimized for 5 mm-pitch high-speed automatic insertion and meets RoHS compliance per Renesas' environmental specifications - and the HZS7A1LTA-E's MHD form factor ensures mechanical durability and thermal mass superior to SMT alternatives.
Can the HZS7A1LTA-E replace older HZ-series Zeners directly?
The HZS7A1LTA-E is a functional upgrade - not a drop-in replacement - for HZ-series diodes due to its tighter voltage tolerance, lower dynamic resistance, and significantly reduced noise. While pin-compatible in the MHD package, circuit redesign may be needed to leverage its improved specs; the HZS7A1LTA-E should be validated in-system for noise-sensitive applications before full migration.
HZS7A1LTA-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:
- -
HZS7A1LTA-E FAQ
1.How can I place an order for HZS7A1LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS7A1LTA-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 HZS7A1LTA-E reliable?
The price and inventory of HZS7A1LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS7A1LTA-E is usually 5 days.
3.What payment methods are accepted for HZS7A1LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS7A1LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS7A1LTA-E?
HZS7A1LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS7A1LTA-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 HZS7A1LTA-E?
For technical support, including HZS7A1LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS7A1LTA-E requirements.
6.How does Aetrix verify that HZS7A1LTA-E is sourced from the original manufacturer or authorized distributors?
All HZS7A1LTA-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 HZS7A1LTA-E meets industry standards.
7.What is the process for return or replacement of HZS7A1LTA-E?
All HZS7A1LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS7A1LTA-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 HZS7A1LTA-E part is unused and in its original packaging.
Return procedure for HZS7A1LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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