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Renesas HZ6B1LTD-E
- Part No.:
- HZ6B1LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6B1LTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
HZ6B1LTD-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 5.65 V (min 5.5 V / max 5.8 V), dynamic resistance of 80 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C. It is used in low-drift bandgap reference buffers, sensor signal conditioning front-ends, and low-noise LDO feedback networks.
For engineers reviewing the HZ6B1LTD-E datasheet, HZ6B1LTD-E pinout, HZ6B1LTD-E application, or HZ6B1LTD-E equivalent, this device is selected for high-stability DC biasing where zener impedance, temperature coefficient (−0.02 %/°C typical), and low leakage (<1 μA at 2.0 V) are critical to minimizing output drift and noise floor in instrumentation-grade designs.
Technical Context
The HZ6B1LTD-E employs a planar-diffused silicon junction structure with controlled doping profiles to achieve reduced flicker noise and improved long-term voltage stability versus legacy HZ-series diodes. Its zener breakdown mechanism operates in the 5–6 V range where temperature coefficient crosses zero, enabling minimal thermal drift in compensated references.
Designed for DC-regulated operation only, it specifies parameters under strictly defined test conditions: zener voltage measured at IZ = 0.5 mA, dynamic resistance at IZ = 1 mA, and reverse current limited to ≤1 μA at VR = 2.0 V - all verified per JEITA ED-4701 Test Method 103.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.5 V to 5.8 V at IZ = 0.5 mA - defines stable reference point for ±2.5% tolerance in precision bias networks |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 1 mA - ensures minimal output impedance variation under load transients in feedback paths |
| Reverse Leakage Current | <1 μA at VR = 2.0 V - prevents parasitic current draw that degrades high-impedance node accuracy |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Junction Temperature (Tj) | −55°C to +175°C - enables use in industrial environments with wide ambient swings and localized heating |
| Temperature Coefficient (γZ) | −0.02 %/°C typical at 5.65 V - delivers <±0.1% total drift over −40°C to +85°C in uncompensated circuits |
Pinout & Package
Package: DO-35 glass axial leaded package (JEITA code GRZZ0002ZB-A, Renesas code SC-40), 2.0 mm diameter × 26.0 mm body length, orange body color 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 and loss of regulation |
| 2 (Anode) | Reference ground return | Provides low-impedance path for zener current; must be tied to stable system ground or virtual ground node |
Key Features
| Feature | Design Value |
|---|---|
| Noise performance | Approximately 1/3–1/10 lower than standard HZ series - directly reduces RMS noise in voltage references below 10 Hz |
| Zener impedance control | 80 Ω max at 1 mA - maintains regulation accuracy across varying load currents in feedback loops |
| Low leakage specification | <1 μA at 2.0 V reverse bias - preserves high-impedance node integrity in micropower sensor interfaces |
| Voltage range coverage | 5.2 V to 38 V selection within HZ-L family - allows matching to specific IC supply rails or reference voltages |
| Thermal stability | Zero-TC crossing near 5.6 V - minimizes need for external temperature compensation in industrial-grade references |
Applications
| Industrial Sensor Signal Conditioning | Precision ADC Reference Buffer |
|---|---|
|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Zener voltage reference for op-amp biasing and ADC reference divider network. Use Value: 80 Ω dynamic resistance and −0.02 %/°C TC ensure <±0.05% reference drift over −25°C to +70°C ambient, meeting Class A industrial accuracy. |
Use Scenario: Providing stable 2.5 V reference to 16-bit SAR ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Low-noise shunt reference in resistive divider feeding REF+ pin of ADC. Use Value: 1/3–1/10 lower noise vs. HZ-series enables <90 dB SNR in 100 kHz bandwidth, exceeding 16-bit ENOB requirements. |
| Low-Power RTD Excitation Circuit | Stabilized Bias for RF Front-End LNA |
|
Use Scenario: Generating constant-current excitation for 3-wire Pt100 RTD bridges in smart transmitters. IC Role / Device Role / Timing Role: Voltage reference for current-source op-amp feedback loop. Use Value: <1 μA leakage prevents error injection into picoampere-level sense current, maintaining <0.1°C measurement resolution. |
Use Scenario: Setting gate bias voltage for GaAs FET low-noise amplifiers in spectrum analyzers. IC Role / Device Role / Timing Role: DC stabilization node for active bias circuitry requiring ultra-low ripple. Use Value: 400 mW power rating and 175°C Tj allow reliable operation adjacent to heat-generating mixer stages without derating. |
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 |
|---|---|---|---|
| BZX84-C5V6 (Nexperia) | 5.6 V nominal, 80 Ω rd, but 350 mW Pd and higher noise (no low-noise spec) | Limited to commercial-temp applications; unsuitable for <−25°C or >85°C operation without derating | Select when cost sensitivity outweighs noise and thermal stability requirements |
| MMSZ5232B (ON Semiconductor) | 5.6 V nominal, 17 Ω rd, but 500 mW Pd and −0.05 %/°C TC - higher drift and no low-noise validation | Higher power capability but lacks documented low-noise performance for precision references | Prefer for higher-current shunt regulation where noise is secondary to current-handling |
Compared with BZX84-C5V6 and MMSZ5232B, the HZ6B1LTD-E uniquely combines low-noise operation, tight TC, and industrial-grade thermal margin - making it the only option among the three qualified for sub-0.01% drift references in uncooled industrial enclosures.
Availability
HZ6B1LTD-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, precision ADC reference buffering, and low-power RTD excitation circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZ6B1LTD-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 timing solutions for industrial, automotive, and infrastructure markets.
The HZ-L Series Zener diodes were developed specifically for low-noise, high-stability voltage reference applications in industrial instrumentation and precision analog signal chains - addressing the need for tighter TC and lower impedance than legacy HZ-family parts.
FAQ
What is the exact zener voltage tolerance of HZ6B1LTD-E at 0.5 mA test current?
The HZ6B1LTD-E has a specified zener voltage range of 5.5 V minimum to 5.8 V maximum when tested at IZ = 0.5 mA, corresponding to a ±2.5% tolerance centered on 5.65 V. This tolerance is guaranteed per Renesas REJ03G0182-0300 Rev.3.00 and applies to all units shipped as HZ6B1LTD-E. The HZ6B1LTD-E is not binned beyond this factory-specified range.
Does HZ6B1LTD-E support AC-coupled or transient applications?
No - the HZ6B1LTD-E is characterized and rated exclusively for DC operation, as explicitly stated in the datasheet note "Tested with DC." Its electrical characteristics, including dynamic resistance and noise, are validated only under steady-state DC bias. Using the HZ6B1LTD-E in AC or fast-switching configurations may result in undefined behavior, increased noise, or premature failure due to uncharacterized capacitive coupling or thermal cycling effects.
Is HZ6B1LTD-E RoHS compliant and lead-free?
Yes - the HZ6B1LTD-E meets EU RoHS Directive requirements and is manufactured as a lead-free device. Renesas confirms compliance in its environmental documentation, and the DO-35 package uses matte tin-plated leads. No exemptions apply, and the part carries full substance declaration per IPC-1752A. This compliance is verified for all production lots of HZ6B1LTD-E supplied by Aetrix Electronics.
What is the maximum allowable ambient temperature for continuous operation of HZ6B1LTD-E at full 400 mW dissipation?
The HZ6B1LTD-E achieves its full 400 mW power rating only at Ta = 25°C. Above this temperature, derating is required per the "Power Dissipation vs. Ambient Temperature" curve on page 4 of REJ03G0182-0300. At 75°C ambient, the maximum safe dissipation drops to approximately 240 mW. Exceeding the derated limit risks junction temperature exceeding 175°C and permanent parametric shift or failure of the HZ6B1LTD-E.
Can HZ6B1LTD-E be used as a direct replacement for older HZ6B1L parts?
Yes - the HZ6B1LTD-E is a direct form-fit-function replacement for HZ6B1L, sharing identical DO-35 packaging, pinout, zener voltage range (5.5–5.8 V), dynamic resistance (80 Ω), and absolute maximum ratings. The "TD-E" suffix denotes updated traceability and RoHS-compliant manufacturing per Renesas' post-2010 consolidation, with no electrical or thermal performance changes from the original HZ6B1L specification.
HZ6B1LTD-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:
- -
HZ6B1LTD-E FAQ
1.How can I place an order for HZ6B1LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6B1LTD-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 HZ6B1LTD-E reliable?
The price and inventory of HZ6B1LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6B1LTD-E is usually 5 days.
3.What payment methods are accepted for HZ6B1LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6B1LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6B1LTD-E?
HZ6B1LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6B1LTD-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 HZ6B1LTD-E?
For technical support, including HZ6B1LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6B1LTD-E requirements.
6.How does Aetrix verify that HZ6B1LTD-E is sourced from the original manufacturer or authorized distributors?
All HZ6B1LTD-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 HZ6B1LTD-E meets industry standards.
7.What is the process for return or replacement of HZ6B1LTD-E?
All HZ6B1LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6B1LTD-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 HZ6B1LTD-E part is unused and in its original packaging.
Return procedure for HZ6B1LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ6B1LTD-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
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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