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Renesas HZS15-1LTA-E
- Part No.:
- HZS15-1LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS15-1LTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HZS15-1LTA-E from Renesas Electronics is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog and stabilized power supply circuits, with a nominal zener voltage of 14.1–14.7 V, dynamic resistance of 13.0 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 200°C. It serves as a reference element in instrumentation, sensor signal conditioning, and low-drift DC-DC feedback loops.
For engineers reviewing the HZS15-1LTA-E datasheet, HZS15-1LTA-E pinout, HZS15-1LTA-E application, or HZS15-1LTA-E equivalent, key selection criteria include its low noise performance (≈1/3–1/10 of HZ series), tight zener voltage tolerance, low leakage current (<1 μA at VR = 12 V), and suitability for high-reliability industrial power management where thermal stability and long-term voltage drift are critical.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a silicon planar structure, optimized for minimal noise generation and stable zener impedance across operating current (0.5–1 mA). Its low dynamic resistance (13.0 Ω) and negative temperature coefficient near 0 mV/°C (per Fig.2 at ~14.4 V) support stable regulation under varying load and ambient conditions.
The HZS15-1LTA-E is rated for continuous operation up to 200°C junction temperature and features a maximum reverse leakage current of 1 μA at VR = 12 V - enabling use in thermally demanding environments without significant reference drift or noise degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.1–14.7 V at IZ = 0.5 mA - defines precise regulation point for feedback networks requiring ±2.1% tolerance. |
| Dynamic Resistance (rd) | 13.0 Ω at IZ = 0.5 mA - ensures minimal output voltage variation under small-signal load transients. |
| Power Dissipation (Pd) | 400 mW - supports operation in compact PCB layouts with limited heatsinking, e.g., on 100 × 180 × 1.6 mm phenolic boards. |
| Reverse Leakage (IR) | <1 μA at VR = 12 V - prevents loading errors in high-impedance reference nodes and improves ADC reference accuracy. |
| Junction Temperature (Tj) | −55 to +200°C - enables deployment in extended-temperature industrial control and automotive under-hood auxiliary circuits. |
| Noise Performance | ≈1/3–1/10 of HZ-series diodes - reduces broadband voltage noise in precision op-amp biasing and sensor excitation paths. |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial-leaded, 5 mm pitch, 2.0 mm diameter body, 26.0 mm length, 0.084 g typical mass. Designed for high-speed automatic insertion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reference Output Node | Connected to regulated voltage rail; polarity must be observed to maintain reverse-bias operation. |
| 2 (Anode) | Ground / Return Path | Serves as current sink return; low-inductance grounding essential for noise-sensitive applications. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Noise Zener Structure | 1/3–1/10 noise vs. legacy HZ series - directly improves SNR in precision analog front-ends and reference buffers. |
| Tight Zener Voltage Tolerance | ±2.1% at 14.4 V nominal - eliminates need for post-calibration trimming in factory-set voltage references. |
| Stable Dynamic Impedance | 13.0 Ω maintained across 0.5–1 mA operating range - ensures consistent regulation under varying load currents. |
| High-Temperature Reliability | Rated to 200°C junction temperature - supports use in sealed enclosures or proximity to power semiconductors. |
| Automated Assembly Compatibility | 5 mm pitch, axial MHD package - enables direct integration into high-volume SMT-compatible through-hole assembly lines. |
Applications
| Industrial Power Monitoring | Medical Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Real-time monitoring of 24 V DC bus voltage in PLC backplanes with ±0.5% accuracy requirement over −40 to +85°C ambient. IC Role / Device Role / Timing Role: Primary voltage reference for 12-bit SAR ADC input scaling and overvoltage comparator threshold setting. Use Value: Low 13.0 Ω dynamic resistance minimizes measurement error from source impedance interaction; low leakage avoids offset drift in high-Z divider networks. |
Use Scenario: Biasing photodiode transimpedance amplifiers in portable pulse oximeters requiring sub-μV noise floor. IC Role / Device Role / Timing Role: Low-noise DC reference for op-amp VOS nulling and LED current source regulation. Use Value: 1/10 noise vs. standard Zeners suppresses baseline ripple in analog signal chain, improving SpO2 calculation fidelity. |
| Test Equipment Reference Supply | Automotive Body Control Module |
|
Use Scenario: Stable 14.4 V reference for calibration of bench multimeters and programmable DC loads. IC Role / Device Role / Timing Role: Precision shunt reference in feedback loop of linear regulator supplying microcontroller and DAC rails. Use Value: Tight 14.1–14.7 V tolerance and <1 μA leakage ensure traceable metrology-grade accuracy without active trimming. |
Use Scenario: Voltage supervision and reset threshold generation in 12 V battery-fed BCMs operating up to 105°C ambient. IC Role / Device Role / Timing Role: Zener-clamped input to window comparator detecting brown-out and overvoltage events. Use Value: 200°C junction rating allows placement near power relays; stable rd ensures consistent trip points across temperature and lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A (ON Semiconductor) | Zener voltage 12 V ±5%, rd = 9 Ω, Pd = 1 W, noise level uncharacterized in datasheet. | Higher power but looser tolerance and no specified low-noise optimization; suited for general-purpose regulation only. | Select when higher power margin is needed and noise is non-critical; not recommended for precision analog reference roles. |
| BZX84-C15 (Diodes Inc.) | SOT-23 package, 15 V ±5%, rd = 30 Ω, Pd = 300 mW, surface-mount only. | Smaller footprint but higher dynamic resistance and lower power rating; unsuitable for high-stability through-hole designs. | Choose for space-constrained PCBs where 30 Ω rd and 300 mW dissipation are acceptable trade-offs. |
Compared with 1N4742A and BZX84-C15, the HZS15-1LTA-E delivers tighter voltage tolerance, verified low-noise performance, and higher temperature capability - making it uniquely suitable for industrial and medical applications demanding long-term reference stability and minimal spectral contamination.
Availability
HZS15-1LTA-E is available at Aetrix Electronics and suitable for industrial power monitoring, medical sensor signal conditioning, test equipment reference supply, and automotive body control module applications requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for HZS15-1LTA-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 analog components for industrial, automotive, and infrastructure markets.
The HZS-L Series was developed specifically for low-noise, high-stability voltage reference applications in precision analog systems - emphasizing reduced zener noise, tight voltage tolerance, and robust thermal performance over legacy Zener families.
FAQ
What is the exact zener voltage range for HZS15-1LTA-E at 0.5 mA test current?
The HZS15-1LTA-E has a guaranteed zener voltage range of 14.1 V to 14.7 V when tested at IZ = 0.5 mA, corresponding to a ±2.1% tolerance around the nominal 14.4 V point. This specification is confirmed in the Renesas REJ03G0166-0300 datasheet, Page 3, and applies strictly under DC test conditions per Note 1.
Does HZS15-1LTA-E have a documented noise performance specification?
Yes - the HZS15-1LTA-E belongs to the HZS-L Series, which is explicitly characterized as having diode noise approximately 1/3 to 1/10 that of the older HZ series. This low-noise attribute is a core design feature cited in the "Features" section of the Renesas datasheet (Page 1) and validated across the full series, including HZS15-1LTA-E.
What is the maximum allowable power dissipation for HZS15-1LTA-E at 75°C ambient temperature?
Per Figure 3 ("Power Dissipation vs. Ambient Temperature") in the Renesas datasheet (Page 4), the HZS15-1LTA-E's derated power dissipation at Ta = 75°C is approximately 280 mW on a standard 100 × 180 × 1.6 mm paper-phenol PCB. This reflects linear derating from 400 mW at 25°C, with zero dissipation reached at ~150°C ambient.
Is HZS15-1LTA-E suitable for automotive under-hood applications?
The HZS15-1LTA-E is rated for junction temperatures up to 200°C and storage from −55°C to +175°C, meeting thermal requirements for many under-hood locations. However, Renesas classifies it as "Standard" grade (not "High Quality"), meaning it is not qualified for safety-critical automotive functions per their quality grading system (Notice #7). It may be used in non-safety BCM auxiliary circuits with proper system-level validation.
What package type and lead pitch does HZS15-1LTA-E use?
HZS15-1LTA-E uses the MHD package (JEITA code GRZZ0002ZC-A), an axial-leaded, cylindrical package with 5 mm lead pitch, 2.0 mm body diameter, and 26.0 mm length. The cathode is marked by a black band, and pin 1 is cathode, pin 2 is anode - confirmed in the "Pin Arrangement" diagram on Page 1 of the Renesas datasheet.
HZS15-1LTA-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:
- -
HZS15-1LTA-E FAQ
1.How can I place an order for HZS15-1LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS15-1LTA-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 HZS15-1LTA-E reliable?
The price and inventory of HZS15-1LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS15-1LTA-E is usually 5 days.
3.What payment methods are accepted for HZS15-1LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS15-1LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS15-1LTA-E?
HZS15-1LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS15-1LTA-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 HZS15-1LTA-E?
For technical support, including HZS15-1LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS15-1LTA-E requirements.
6.How does Aetrix verify that HZS15-1LTA-E is sourced from the original manufacturer or authorized distributors?
All HZS15-1LTA-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 HZS15-1LTA-E meets industry standards.
7.What is the process for return or replacement of HZS15-1LTA-E?
All HZS15-1LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS15-1LTA-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 HZS15-1LTA-E part is unused and in its original packaging.
Return procedure for HZS15-1LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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