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Renesas HZ16-2LTD-E
- Part No.:
- HZ16-2LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ16-2LTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:16,666
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Product details
Overview
HZ16-2LTD-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 15.7–16.5 V, 400 mW power dissipation, 14.0 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass package with navy-blue cathode band. It is used in low-drift power supply feedback paths and sensor biasing where noise suppression is critical.
For engineers reviewing the HZ16-2LTD-E datasheet, HZ16-2LTD-E pinout, HZ16-2LTD-E application, or HZ16-2LTD-E equivalent, this page delivers verified electrical specs, thermal behavior, package dimensions, real-world use cases, and validated alternative parts - all aligned to Renesas' HZ-L Series documentation (REJ03G0182-0300 Rev.3.00).
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a silicon planar junction, with zener voltage specified at 0.5 mA DC test current and dynamic resistance measured under the same condition. Its temperature coefficient ranges from −0.04 %/°C to +0.02 %/°C near 16 V, enabling stable regulation across industrial ambient temperatures.
The HZ16-2LTD-E exhibits 1/3–1/10 lower noise than legacy HZ-series diodes, achieved via optimized doping and junction geometry. It is rated for junction temperatures up to 175°C and storage from −55°C to +175°C, supporting deployment in thermally demanding environments without derating below 400 mW at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.7–16.5 V at IZ = 0.5 mA - defines stable regulation point for feedback networks requiring tight tolerance |
| Dynamic Resistance (rd) | 14.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts with natural convection cooling |
| Reverse Leakage (IR) | 1 μA max at VR = 12.0 V - guarantees negligible current draw in high-impedance reference nodes |
| Junction Temperature (Tj) | 175°C maximum - enables reliable operation in enclosed enclosures or near heat-generating components |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - industry-standard axial glass package with 2.0 mm body diameter and 26 mm lead length |
Pinout & Package
DO-35 glass axial package with orange body color and navy-blue cathode band. Cathode terminal marked by band; anode is unmarked lead. Mass: 0.13 g. Dimensions: φD = 2.0 mm (nom), L = 26.0 mm (min), E = 4.2 mm (max). Leads are tinned copper-clad steel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during normal operation to maintain fixed VZ |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; completes current path for zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise performance | 1/3–1/10 lower noise vs. standard HZ series - reduces voltage reference jitter in ADC/DAC biasing |
| Stable temperature coefficient | −0.04 to +0.02 %/°C near 16 V - minimizes drift over −40°C to +85°C operating range |
| Low dynamic impedance | 14.0 Ω max at 0.5 mA - improves line/load regulation in shunt regulator topologies |
| High reliability packaging | Hermetically sealed DO-35 glass envelope - prevents moisture ingress and maintains long-term VZ stability |
| Wide operating temperature | −55°C to +175°C storage, 175°C max junction - suitable for automotive under-hood and industrial control applications |
Applications
| Industrial Power Supply Feedback | High-Precision Sensor Biasing |
|---|---|
|
Use Scenario: Shunt-based voltage reference in isolated flyback converter feedback loop. IC Role / Device Role / Timing Role: Provides stable 16 V reference to optocoupler input, enabling accurate secondary-side regulation. Use Value: Low dynamic impedance (14.0 Ω) and low noise ensure <±0.5% output voltage tolerance across line/load variations. |
Use Scenario: Bias voltage source for bridge-type pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Supplies excitation voltage to Wheatstone bridge with minimal thermal drift. Use Value: Temperature coefficient of −0.04 to +0.02 %/°C limits sensor offset error to <10 ppm/°C over operating range. |
| Test Equipment Reference | Medical Diagnostic Signal Conditioning |
|
Use Scenario: Calibration reference in portable multimeter front-end circuitry. IC Role / Device Role / Timing Role: Serves as primary voltage standard for ADC full-scale adjustment. Use Value: Low leakage (<1 μA) prevents loading of high-impedance calibration DAC outputs. |
Use Scenario: Stable bias for photodiode preamplifiers in non-invasive pulse oximeters. IC Role / Device Role / Timing Role: Sets op-amp common-mode voltage in transimpedance stage. Use Value: Reduced noise floor enables detection of sub-nA photocurrents without added reference-induced interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245BS-7-F | Zener voltage 15 V ±5%, 200 mW rating, SOD-123 surface-mount package | Lacks low-noise optimization; higher dynamic impedance (20 Ω) and wider tempco (±0.08 %/°C) | Preferred for space-constrained PCBs where noise is secondary to footprint size |
| Vishay BZX55-C16 | Zener voltage 16 V ±5%, 500 mW rating, DO-35 package, but 300 Ω typical rd at 5 mA | No low-noise specification; higher impedance degrades regulation under varying load | Suitable for general-purpose stabilization where cost is prioritized over precision |
Compared with HZ16-2LTD-E, the MMBZ5245BS-7-F offers smaller size but sacrifices noise performance and thermal stability, while the BZX55-C16 provides higher power handling yet lacks the low-impedance, low-drift behavior critical for metrology-grade references.
Availability
HZ16-2LTD-E is available at Aetrix Electronics and suitable for industrial power supplies, precision sensor interfaces, and test equipment requiring stable component supply with guaranteed long-term continuity and traceable sourcing.
Supply support for HZ16-2LTD-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 HZ-L Series was designed specifically for low-noise, high-stability voltage reference applications in analog signal chains and precision power management systems - targeting requirements beyond standard Zener performance.
FAQ
What is the exact zener voltage range for HZ16-2LTD-E?
The HZ16-2LTD-E has a guaranteed zener voltage range of 15.7 V to 16.5 V when tested at 0.5 mA DC current and 25°C ambient temperature, per Renesas datasheet REJ03G0182-0300 Rev.3.00. This tolerance reflects process-controlled junction characteristics and is validated during final test screening.
Is HZ16-2LTD-E RoHS compliant?
Yes, HZ16-2LTD-E meets EU RoHS Directive requirements as confirmed by Renesas Electronics' environmental compliance documentation. The DO-35 glass package contains no lead in solderable terminations, and all materials comply with maximum concentration limits for restricted substances.
Can HZ16-2LTD-E be used in place of HZ16-2L?
Yes - HZ16-2LTD-E is a direct replacement for HZ16-2L, sharing identical electrical specifications, DO-35 package, and navy-blue cathode band marking. The "-E" suffix denotes updated traceability and packaging per Renesas' post-merger labeling standards (Renesas Electronics Corporation, formerly NEC Electronics).
What is the maximum allowable power dissipation at 70°C ambient?
Per the derating curve in Figure 3 of the HZ-L Series datasheet, HZ16-2LTD-E's power dissipation must be linearly reduced from 400 mW at 25°C to approximately 280 mW at 70°C ambient temperature. This ensures junction temperature remains within the 175°C absolute maximum limit.
Does HZ16-2LTD-E have a specified noise voltage spectral density?
No, the Renesas datasheet does not publish quantitative noise voltage spectral density (e.g., nV/√Hz); it states only that HZ-L Series diodes exhibit "approximately 1/3–1/10 lower noise" versus the legacy HZ series. For noise-critical designs, empirical measurement under actual operating conditions is recommended.
HZ16-2LTD-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:
- -
HZ16-2LTD-E FAQ
1.How can I place an order for HZ16-2LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ16-2LTD-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 HZ16-2LTD-E reliable?
The price and inventory of HZ16-2LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ16-2LTD-E is usually 5 days.
3.What payment methods are accepted for HZ16-2LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ16-2LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ16-2LTD-E?
HZ16-2LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ16-2LTD-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 HZ16-2LTD-E?
For technical support, including HZ16-2LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ16-2LTD-E requirements.
6.How does Aetrix verify that HZ16-2LTD-E is sourced from the original manufacturer or authorized distributors?
All HZ16-2LTD-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 HZ16-2LTD-E meets industry standards.
7.What is the process for return or replacement of HZ16-2LTD-E?
All HZ16-2LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ16-2LTD-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 HZ16-2LTD-E part is unused and in its original packaging.
Return procedure for HZ16-2LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ16-2LTD-E Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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