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Renesas HZ16-2JTA
- Part No.:
- HZ16-2JTA
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ16-2JTA.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:40,000
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Product details
Overview
HZ16-2JTA from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 15.7–16.5 V, 400 mW power dissipation, 14.0 Ω dynamic resistance at 0.5 mA, and DO-35 glass package. It serves as a stable reference in low-drift power supplies and sensor biasing networks.
For engineers reviewing the HZ16-2JTA datasheet, HZ16-2JTA pinout, HZ16-2JTA application, or HZ16-2JTA equivalent, key selection criteria include zener voltage tolerance (±0.4 V), temperature coefficient (−0.04 %/°C at ~16 V), low noise performance (1/3–1/10 of standard HZ series), and DO-35 thermal derating behavior up to 175°C junction temperature.
Technical Context
The HZ16-2JTA operates as a two-terminal shunt regulator with cathode-anode polarity, designed for DC-biased reverse breakdown. Its low dynamic impedance (14.0 Ω) and tight VZ tolerance support stable reference generation under varying load currents up to 0.5 mA.
It exhibits a negative temperature coefficient of −0.04 %/°C near 16 V, enabling predictable drift compensation in temperature-sensitive designs. The DO-35 package provides standardized lead spacing (E = 4.2 mm) and thermal resistance suitable for through-hole PCB mounting in space-constrained analog modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.7–16.5 V at IZ = 0.5 mA - defines precise regulation point for mid-range analog references |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal shutdown |
| Dynamic Resistance (rd) | 14.0 Ω at IZ = 0.5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | ≤1 μA at VR = 12.0 V - ensures minimal current draw in standby or high-impedance bias networks |
| Junction Temperature (Tj) | −55 to +175°C - supports operation in industrial and automotive under-hood environments |
| Temperature Coefficient (γZ) | −0.04 %/°C - enables predictable voltage drift compensation in wide-temperature applications |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, navy blue cathode band, 2.0 mm diameter, 26.0 mm length, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Regulated Output Node | Connected to positive rail; reverse-biased terminal where stable VZ appears relative to anode |
| 2 (Anode) | Reference Ground Node | Typically tied to circuit common; establishes return path for zener current and defines regulation reference point |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Diode noise level ≈1/3–1/10 that of standard HZ series - critical for audio preamps and precision ADC references |
| Low dynamic impedance | 14.0 Ω at 0.5 mA - improves line/load regulation and reduces output ripple coupling |
| Wide zener voltage range | 15.7–16.5 V nominal - matches common 15 V and 16 V system rails without external scaling |
| High thermal stability | Tj rating up to 175°C - enables use in thermally demanding industrial control enclosures |
Applications
| Instrumentation Reference | Low-Noise Audio Biasing |
|---|---|
Use Scenario: Precision voltage reference for 16-bit SAR ADC front-end in portable multimeters. IC Role / Device Role / Timing Role: Provides stable 16 V reference to ADC driver op-amp, minimizing quantization error from supply drift. Use Value: Low 14.0 Ω rd and −0.04 %/°C γZ reduce measurement drift to <0.02% over 0–70°C ambient range. | Use Scenario: Cathode-biased gain stage in high-fidelity microphone preamplifier. IC Role / Device Role / Timing Role: Supplies ultra-low-noise 16 V bias to JFET input stage, replacing noisy linear regulator. Use Value: 1/10 noise vs. standard HZ series directly lowers input-referred noise floor by 20 dB in 20 Hz–20 kHz band. |
| Industrial Sensor Excitation | Stabilized Power Supply Shunt |
Use Scenario: Constant-current excitation source for RTD bridge in factory-floor temperature transmitters. IC Role / Device Role / Timing Role: Regulates 16 V across series resistor to deliver stable 1 mA bridge current independent of 24 V rail variation. Use Value: 400 mW Pd and ≤1 μA IR ensure stable current delivery with <0.1% error over 15–28 V input range. | Use Scenario: Overvoltage clamp in 16 V DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Shunts excess current when output exceeds 16.5 V, protecting downstream LDO and microcontroller. Use Value: Fast response to transient overvoltage events due to low rd and DO-35 thermal mass limiting thermal runaway risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16 (Nexperia) | 16 V nominal, ±5% tolerance (vs. ±0.4 V), SOT-23 package, 350 mW Pd, rd = 40 Ω | Suitable for cost-sensitive consumer PCBs; not recommended for low-noise or precision analog use | Select only if board space is constrained and noise/precision requirements are relaxed |
| 1N4744A (ON Semiconductor) | 15 V nominal, ±5% tolerance, DO-41 package, 1 W Pd, rd = 14 Ω, higher noise than HZ-L series | Better for high-power shunt regulation; lacks low-noise optimization and tight VZ binning | Choose when >400 mW dissipation is needed but low-noise performance is secondary |
Compared with BZX84-C16 and 1N4744A, the HZ16-2JTA delivers superior voltage accuracy (±0.4 V vs. ±5%), lower noise (1/10 of standard Zeners), and tighter dynamic impedance control-making it uniquely suited for metrology-grade references where drift and noise dominate error budgets.
Availability
HZ16-2JTA is available at Aetrix Electronics and suitable for precision instrumentation, low-noise audio design, industrial sensor excitation, and stabilized power supply shunt applications requiring stable component supply and long-term parametric consistency.
Supply support for HZ16-2JTA 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 is a global semiconductor leader specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZ-L Series is part of Renesas' precision analog portfolio, engineered specifically for low-noise, low-drift voltage reference applications in test equipment, medical sensors, and high-fidelity signal chains.
FAQ
What is the exact zener voltage range specified for HZ16-2JTA?
The HZ16-2JTA has a guaranteed zener voltage range of 15.7 V to 16.5 V when tested at IZ = 0.5 mA and Ta = 25°C. This ±0.4 V tolerance reflects tight binning for precision reference use, distinct from broader-tolerance Zeners like the 1N4744A. The HZ16-2JTA achieves this via process-controlled breakdown characteristics in Renesas' silicon planar Zener fabrication.
Is HZ16-2JTA suitable for surface-mount assembly?
No, the HZ16-2JTA uses a DO-35 glass axial package with 26.0 mm body length and 4.2 mm lead spacing, designed exclusively for through-hole PCB mounting. It is not compatible with reflow or wave soldering processes used for SMT. For surface-mount alternatives, consider Renesas' HZ-L Series SMD variants such as HZ16-2L in SC-70, though those differ in thermal and noise performance from the HZ16-2JTA.
How does the noise performance of HZ16-2JTA compare to generic Zener diodes?
The HZ16-2JTA delivers approximately 1/3 to 1/10 the noise level of standard HZ-series Zeners due to optimized silicon planar structure and low-noise processing. This is confirmed in Renesas' REJ03G0182-0300 datasheet and makes the HZ16-2JTA appropriate for audio preamp biasing and precision ADC references where broadband noise directly impacts SNR. Generic Zeners lack this characterization and process tuning.
What is the maximum allowable reverse current before degradation of HZ16-2JTA?
The HZ16-2JTA is rated for ≤1 μA reverse leakage current at VR = 12.0 V and Ta = 25°C. Exceeding this condition-especially sustained operation above 0.5 mA zener current without adequate heatsinking-risks thermal runaway due to its 400 mW power limit and DO-35 package thermal resistance. Derating per Figure 3 in the datasheet is required above 50°C ambient.
Does HZ16-2JTA have a specified zener impedance versus frequency?
No, the official Renesas datasheet REJ03G0182-0300 specifies dynamic resistance (rd = 14.0 Ω) only at DC (IZ = 0.5 mA). No AC impedance or frequency-dependent impedance data is provided for the HZ16-2JTA. Designers requiring high-frequency impedance behavior must characterize the device empirically or select a dedicated low-impedance RF Zener, as the HZ16-2JTA is optimized for DC and low-frequency reference stability-not RF bypassing.
HZ16-2JTA 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:
- -
HZ16-2JTA FAQ
1.How can I place an order for HZ16-2JTA through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ16-2JTA 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 HZ16-2JTA reliable?
The price and inventory of HZ16-2JTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ16-2JTA is usually 5 days.
3.What payment methods are accepted for HZ16-2JTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ16-2JTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ16-2JTA?
HZ16-2JTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ16-2JTA 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 HZ16-2JTA?
For technical support, including HZ16-2JTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ16-2JTA requirements.
6.How does Aetrix verify that HZ16-2JTA is sourced from the original manufacturer or authorized distributors?
All HZ16-2JTA 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 HZ16-2JTA meets industry standards.
7.What is the process for return or replacement of HZ16-2JTA?
All HZ16-2JTA units undergo pre-shipment inspection (PSI). If there is an issue with HZ16-2JTA, 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 HZ16-2JTA part is unused and in its original packaging.
Return procedure for HZ16-2JTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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