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Renesas HZ36BPTK-E
- Part No.:
- HZ36BPTK-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ36BPTK-E.pdf
- Description:
- DIODE ZENER
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Inventory:110,233
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Product details
Overview
HZ36BPTK-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 36.4 V to 38.0 V at 0.5 mA test current, 33.0 Ω dynamic resistance, 400 mW power dissipation, and DO-35 glass package with navy blue cathode band - used in reference supplies for ADCs, sensor signal conditioning, and low-drift instrumentation.
For engineers reviewing the HZ36BPTK-E datasheet, HZ36BPTK-E pinout, HZ36BPTK-E application, or HZ36BPTK-E equivalent, key selection criteria include zener voltage tolerance (±1.5 V), temperature coefficient (−0.04 %/°C typical), low noise performance (1/3–1/10 of standard HZ series), and DO-35 thermal derating behavior above 50°C ambient.
Technical Context
The HZ36BPTK-E operates as a two-terminal voltage reference device using silicon planar junction technology, with zener breakdown mechanism dominant in its 36–38 V range. Its low dynamic impedance (33.0 Ω) and tight voltage tolerance support stable regulation under varying load currents up to 1 mA.
Designed for low-noise applications, it achieves reduced flicker and thermal noise versus legacy HZ-series diodes via optimized doping profile and junction geometry. The DO-35 package enables through-hole mounting with 26 mm lead length and 2.0 mm body diameter, supporting manual or wave-solder assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4 V min to 38.0 V max at IZ = 0.5 mA - defines precise DC reference level for feedback loops or bias networks |
| Dynamic Resistance (rd) | 33.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal shutdown risk |
| Junction Temperature (Tj) | 175°C max - allows operation in high-ambient industrial environments with appropriate PCB copper area |
| Reverse Leakage (IR) | 1 μA max at VR = 27.0 V - guarantees negligible current draw in standby or high-impedance sensing nodes |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - enables predictable drift compensation in temperature-stable references |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), 2.0 mm body diameter, 26 mm overall length, navy blue cathode band, orange body color, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference terminal | Connected to regulated positive rail; reverse-biased during normal operation |
| 2 (Anode) | Low-side reference terminal | Typically grounded or connected to lower potential node; completes bias path |
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 DAC buffers |
| Stable low-impedance regulation | 33.0 Ω dynamic resistance at 0.5 mA - maintains <10 mV output shift across 100 μA load changes |
| Wide zener voltage range | 36.4–38.0 V nominal - supports mid-to-high-voltage reference needs without external scaling resistors |
| Robust thermal rating | 175°C max junction temperature - enables use in sealed enclosures or near heat-generating components |
Applications
| High-Voltage Sensor Reference | Precision ADC Biasing |
|---|---|
Use Scenario: Providing stable excitation voltage to strain gauge bridges operating at ±15 V rails in industrial weigh scales. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference supplying fixed 36.4–38.0 V bias to bridge top node. Use Value: Low dynamic resistance minimizes bridge imbalance error from supply ripple; low noise prevents microvolt-level measurement corruption. |
Use Scenario: Generating clean reference voltage for 16-bit SAR ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Primary DC reference source feeding ADC's REFIN+ input, replacing bulkier IC-based references. Use Value: 33.0 Ω impedance ensures <0.5 LSB error under 50 μA reference current variation; −0.04 %/°C TC reduces calibration frequency. |
| Low-Drift Instrumentation Amplifier | Programmable Power Supply Feedback |
Use Scenario: Setting gain-independent offset null in medical ECG front-end amplifiers requiring sub-μV stability. IC Role / Device Role / Timing Role: Zener-based bias generator for op-amp input stage trimming network. Use Value: Navy-blue cathode band enables visual polarity verification during hand-soldering; DO-35 mechanical robustness withstands board flexure. |
Use Scenario: Closed-loop voltage sense element in lab-grade 0–40 V programmable DC supplies. IC Role / Device Role / Timing Role: High-accuracy shunt reference in feedback divider string tied to error amplifier inverter input. Use Value: 400 mW rating supports direct connection to 39 kΩ upper divider resistor at 40 V output; low leakage avoids divider current error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4749A | Zener voltage 24 V (fixed), 1000 mW rating, 23 Ω rd, DO-41 package | Higher power but lower voltage; unsuitable for 36–38 V reference needs without series stacking | Select only if system requires >400 mW dissipation and can accommodate 24 V + series diode configuration |
| BZX85C36 | Zener voltage 36 V ±5%, 1.3 W rating, 50 Ω rd, DO-41 package, higher leakage (5 μA) | Looser voltage tolerance and higher noise than HZ36BPTK-E; acceptable for non-critical power rail clamping | Choose when cost sensitivity outweighs low-noise and tight-tolerance requirements |
Compared with 1N4749A and BZX85C36, the HZ36BPTK-E delivers tighter voltage tolerance (±1.5 V vs. ±5%), lower noise (1/3–1/10), and optimized dynamic impedance for precision analog referencing - making it preferred for metrology-grade and low-drift instrumentation where reference integrity directly impacts measurement fidelity.
Availability
HZ36BPTK-E is available at Aetrix Electronics and suitable for high-precision voltage reference, sensor excitation, and analog signal conditioning applications requiring stable component supply and long-term parametric consistency.
Supply support for HZ36BPTK-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and advanced SoCs for automotive, industrial, and infrastructure markets.
The HZ-L Series, including HZ36BPTK-E, was developed specifically for low-noise, high-stability voltage reference applications in precision analog systems - emphasizing zener impedance control, thermal coefficient optimization, and manufacturing consistency across voltage grades.
FAQ
What is the exact zener voltage range specified for HZ36BPTK-E?
The HZ36BPTK-E has a guaranteed zener voltage range of 36.4 V minimum to 38.0 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 1.6 V span reflects tight process control within the HZ-L Series and enables accurate reference design without post-manufacturing sorting. The HZ36BPTK-E datasheet confirms this range on page 3 of REJ03G0182-0300 Rev.3.00.
Does HZ36BPTK-E support surface-mount assembly?
No, the HZ36BPTK-E uses a DO-35 axial glass package with 26 mm leads, designed exclusively for through-hole mounting. It is not compatible with reflow or vapor-phase SMT processes due to glass body fragility and lack of solderable terminations. For SMT alternatives, Renesas offers no direct replacement; designers must select discrete SMD Zeners like MMBZ52xx series with trade-offs in noise and impedance.
How does the noise performance of HZ36BPTK-E compare to standard Zener diodes?
The HZ36BPTK-E achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series Zeners due to proprietary junction doping and planar structure optimization. This reduction is verified in Renesas' characterization data and directly improves signal-to-noise ratio in sensitive analog stages - for example, reducing integrated noise by >10 dB in 10 Hz–10 kHz bandwidths compared to HZ36-2L. The HZ36BPTK-E specification sheet explicitly cites this advantage on page 1.
What is the maximum allowable reverse current before breakdown in HZ36BPTK-E?
The HZ36BPTK-E specifies a maximum reverse leakage current (IR) of 1 μA at VR = 27.0 V and Ta = 25°C. This value is measured well below the zener knee and confirms minimal parasitic conduction in high-impedance bias networks. Exceeding 27.0 V risks entering unregulated breakdown; operation should remain within the 36.4–38.0 V zener region for stable reference behavior. The HZ36BPTK-E datasheet lists this parameter in the Electrical Characteristics table on page 2.
Can HZ36BPTK-E be used in temperature-compensated reference designs?
Yes - the HZ36BPTK-E exhibits a typical temperature coefficient of −0.04 %/°C, as shown in Figure 2 of its datasheet. This predictable negative drift allows pairing with positive-TC components (e.g., forward-biased diodes or resistors) to achieve near-zero net TC over −25°C to +85°C ranges. Its consistent γZ across production lots makes it suitable for factory-trimmed references, unlike generic Zeners with ±0.1 %/°C variation. The HZ36BPTK-E specification supports this use case explicitly.
HZ36BPTK-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:
- -
HZ36BPTK-E FAQ
1.How can I place an order for HZ36BPTK-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ36BPTK-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 HZ36BPTK-E reliable?
The price and inventory of HZ36BPTK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ36BPTK-E is usually 5 days.
3.What payment methods are accepted for HZ36BPTK-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ36BPTK-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ36BPTK-E?
HZ36BPTK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ36BPTK-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 HZ36BPTK-E?
For technical support, including HZ36BPTK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ36BPTK-E requirements.
6.How does Aetrix verify that HZ36BPTK-E is sourced from the original manufacturer or authorized distributors?
All HZ36BPTK-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 HZ36BPTK-E meets industry standards.
7.What is the process for return or replacement of HZ36BPTK-E?
All HZ36BPTK-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ36BPTK-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 HZ36BPTK-E part is unused and in its original packaging.
Return procedure for HZ36BPTK-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ36BPTK-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
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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