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Renesas HZ36-1-E
- Part No.:
- HZ36-1-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ36-1-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:4,492
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Product details
Overview
HZ36-1-E from Renesas is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 36.4 V to 38.0 V, 500 mW power dissipation, and dynamic resistance of 140 Ω at 2 mA test current.
For engineers reviewing the HZ36-1-E datasheet, HZ36-1-E pinout, HZ36-1-E application, or HZ36-1-E equivalent, key selection criteria include zener voltage tolerance (±0.8 V), temperature coefficient (−0.06 %/°C), DO-35 package compatibility, and reverse leakage performance under 1 µA at VR = 30.2 V.
Technical Context
This discrete Zener diode operates in reverse breakdown mode with DC-tested characteristics, optimized for stable reference generation in linear regulators and overvoltage protection circuits. Its low leakage (<1 µA) and controlled temperature coefficient support accuracy-critical biasing and sensing functions.
The device uses a silicon planar construction with navy-blue cathode band marking, rated for junction temperatures up to 175°C and storage from −55°C to +175°C. It exhibits a negative temperature coefficient of −0.06 %/°C at ~36 V, consistent with mid-to-high voltage Zener behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4 V to 38.0 V at IZ = 2 mA - defines precise regulation point for feedback loops and reference rails |
| Power Dissipation (Pd) | 500 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating |
| Dynamic Resistance (rd) | 140 Ω at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | ≤1 µA at VR = 30.2 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Temperature Coefficient (γZ) | −0.06 %/°C - quantifies voltage drift per degree Celsius for stability analysis across operating range |
| Junction Temperature (Tj) | 175°C maximum - defines upper thermal limit for reliability in enclosed or high-ambient environments |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial leaded package with navy-blue cathode band; total mass 0.13 g; dimensions L = 26.0 mm, φD = 2.0 mm, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown voltage reference terminal | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation |
| 2 (Anode) | Current return path | Typically tied to ground or lower-potential rail; completes bias current path through series resistor |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 140 Ω enables tight voltage regulation under varying load currents in feedback references |
| Controlled temperature coefficient | −0.06 %/°C supports predictable drift compensation in industrial temperature ranges |
| High junction temperature rating | 175°C maximum allows use in thermally constrained enclosures without forced cooling |
| Low reverse leakage | ≤1 µA at 30.2 V minimizes error in high-impedance voltage divider or sensing networks |
| Standard DO-35 footprint | Enables drop-in replacement in legacy designs using axial-leaded Zener diodes |
Applications
| Voltage Reference for Linear Regulators | Overvoltage Protection Clamping |
|---|---|
Use Scenario: Provides stable reference input to TL431 or discrete op-amp error amplifiers in adjustable linear regulators. IC Role / Device Role / Timing Role: Zener diode serves as primary voltage reference element defining output setpoint. Use Value: Tight 36.4–38.0 V tolerance and low dynamic resistance ensure ±1% output regulation accuracy across line/load variations. |
Use Scenario: Shunts excess energy during transient overvoltage events on 36 V DC bus lines in industrial control systems. IC Role / Device Role / Timing Role: Acts as passive clamping device limiting voltage excursion above safe threshold. Use Value: 500 mW power rating and 175°C junction temperature allow reliable single-pulse clamping without thermal runaway. |
| Signal Level Translation | Bias Network Stabilization |
Use Scenario: Shifts logic-level signals between 3.3 V microcontrollers and 36 V sensor interfaces via resistive divider + Zener clamp. IC Role / Device Role / Timing Role: Defines upper rail for level-shifting network while absorbing leakage and noise. Use Value: Low 1 µA reverse leakage prevents loading of high-impedance dividers, preserving signal fidelity. |
Use Scenario: Stabilizes gate bias voltage for high-side N-channel MOSFET drivers in 36 V automotive subsystems. IC Role / Device Role / Timing Role: Supplies fixed reference to bootstrap or gate driver IC bias inputs. Use Value: −0.06 %/°C temperature coefficient ensures <±2% bias shift over −40°C to +125°C ambient range. |
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 |
|---|---|---|---|
| 1N4749A | Zener voltage 24 V (fixed), 1 W power rating, DO-41 package, 20 Ω rd | Higher power, lower voltage, different thermal profile and PCB footprint | Select when higher power margin or lower voltage reference is required; not interchangeable due to voltage and package mismatch |
| BZX55-C36 | Zener voltage 36 V ±5%, 500 mW, DO-35, 150 Ω rd, 100 nA IR at 28.8 V | Narrower voltage tolerance, lower leakage, same package and power class | Preferred where tighter initial tolerance and ultra-low leakage are critical; requires validation of γZ match for temperature-sensitive designs |
Compared with HZ36-1-E, the 1N4749A offers higher power but incompatible voltage and package, while BZX55-C36 matches DO-35 and power rating but differs in voltage tolerance, leakage, and temperature coefficient-making it suitable only where those parameters align with system requirements.
Availability
HZ36-1-E is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection circuits, and bias network stabilization requiring stable component supply and traceable sourcing for industrial and embedded applications.
Supply support for HZ36-1-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 is a global semiconductor manufacturer specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and infrastructure markets.
HZ36-1-E belongs to the HZ Series silicon planar Zener diodes, engineered specifically for stable, low-drift voltage regulation in cost-sensitive, space-constrained power supply and protection circuits.
FAQ
What is the exact zener voltage range specified for HZ36-1-E?
The HZ36-1-E has a guaranteed zener voltage range of 36.4 V to 38.0 V when tested at IZ = 2 mA and Ta = 25°C. This range reflects the "-3" grade designation per Renesas' ordering nomenclature and is confirmed in the Electrical Characteristics table on page 4 of REJ03G0180-0600 Rev.6.00. The HZ36-1-E is not rated for 36 V nominal-it is a defined 36.4–38.0 V part.
Is HZ36-1-E compatible with standard DO-35 footprints?
Yes, HZ36-1-E uses the DO-35 package (RENESAS code GRZZ0002ZB-A, JEITA code SC-40), with axial leads, 2.0 mm body diameter, and 26.0 mm length. Its mechanical dimensions-including E = 4.2 mm lead spacing-match industry-standard DO-35 layouts, enabling direct placement in existing through-hole designs without board modification.
What is the maximum reverse leakage current for HZ36-1-E and under what condition?
The maximum reverse leakage current for HZ36-1-E is 1 µA, measured at VR = 30.2 V and Ta = 25°C. This value is specified in the Electrical Characteristics table for the HZ36 type on page 4 and is critical for minimizing error in high-impedance bias or reference networks where leakage could shift operating points.
Does HZ36-1-E have a positive or negative temperature coefficient, and what is its magnitude?
HZ36-1-E has a negative temperature coefficient of −0.06 %/°C, as shown in Figure 2 (Temperature Coefficient vs. Zener Voltage) on page 5 of the datasheet. This means its zener voltage decreases by approximately 0.0216 V per °C rise at 36 V nominal-essential for predicting regulation drift in wide-temperature applications.
Can HZ36-1-E be used in surface-mount designs?
No, HZ36-1-E is exclusively available in the through-hole DO-35 glass axial package and is not offered in any surface-mount variant. It requires manual or wave soldering into plated-through holes. For SMT alternatives, engineers must select functionally comparable Zeners such as MMBZ5270B (SOT-23, 36 V), but those differ in power rating, thermal response, and mounting method.
HZ36-1-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:
- -
HZ36-1-E FAQ
1.How can I place an order for HZ36-1-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ36-1-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 HZ36-1-E reliable?
The price and inventory of HZ36-1-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ36-1-E is usually 5 days.
3.What payment methods are accepted for HZ36-1-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ36-1-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ36-1-E?
HZ36-1-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ36-1-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 HZ36-1-E?
For technical support, including HZ36-1-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ36-1-E requirements.
6.How does Aetrix verify that HZ36-1-E is sourced from the original manufacturer or authorized distributors?
All HZ36-1-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 HZ36-1-E meets industry standards.
7.What is the process for return or replacement of HZ36-1-E?
All HZ36-1-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ36-1-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 HZ36-1-E part is unused and in its original packaging.
Return procedure for HZ36-1-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ36-1-E Tags
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MM5Z5V1ST1G
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