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Renesas HZM30NBTL-E
- Part No.:
- HZM30NBTL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM30NBTL-E.pdf
- Description:
- DIODE ZENER
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Product details
Overview
HZM30NBTL-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits. It delivers a nominal zener voltage of 30 V (min 28.0 V, max 32.0 V) at 2 mA test current, with dynamic resistance of 80 Ω and power dissipation rated at 200 mW. Its MPAK surface-mount package supports high-density PCB layouts in power supply feedback paths and sensor biasing networks.
For engineers reviewing the HZM30NBTL-E datasheet, HZM30NBTL-E pinout, HZM30NBTL-E application, or HZM30NBTL-E equivalent, key selection criteria include its ±3.3% zener voltage tolerance at 2 mA, temperature coefficient of +0.05 mV/°C (typical), junction temperature limit of 150°C, and suitability for voltage reference, overvoltage protection, and regulator feedback applications requiring stable 30 V clamping.
Technical Context
The HZM30NBTL-E operates as a two-terminal shunt regulator, maintaining a stable reverse-biased breakdown voltage across its cathode–anode terminals under controlled current conditions. Its silicon epitaxial planar construction ensures tight voltage distribution and low leakage, with reverse current limited to 2 µA at VR = 23.0 V.
This device functions within a –55°C to +150°C storage temperature range and requires no external bias circuitry-only a series current-limiting resistor to set IZ. Its thermal performance is defined by ambient temperature derating per Fig.3, where Pd drops linearly above 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0 V to 32.0 V at IZ = 2 mA - defines clamping threshold for overvoltage protection and reference accuracy |
| Dynamic Resistance (rd) | 80 Ω at IZ = 2 mA - determines output impedance and load regulation sensitivity in feedback loops |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling before thermal shutdown or degradation |
| Reverse Current (IR) | 2 µA max at VR = 23.0 V - ensures minimal leakage in standby or high-impedance bias networks |
| Junction Temperature (Tj) | 150°C max - constrains PCB layout thermal design and heatsinking requirements for reliability |
| Temperature Coefficient (γZ) | +0.05 mV/°C (typical) - quantifies zener voltage drift over operating temperature in precision references |
Pinout & Package
Package: MPAK (JEITA code PLSP0003ZC-A), 3-pin surface-mount package with 1.0 mm × 1.3 mm footprint, 0.55 mm terminal pitch, and 0.16 mm typical lead thickness. Compatible with standard reflow profiles for high-volume SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Electrically isolated terminal - must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 2 | Anode | Forward-biased terminal during conduction; tied to lower potential side in shunt regulation configuration |
| 3 | Cathode | Reverse-biased terminal during zener operation; connected to regulated node or feedback point in power supplies |
Key Features
| Feature | Design Value |
|---|---|
| Wide Zener Voltage Range | 1.9 V to 38 V across HZM-N family - enables single-source procurement for multi-rail systems requiring diverse reference voltages |
| MPAK Surface-Mount Package | 0.55 mm pin pitch, 1.0 mm × 1.3 mm body - supports >4000 components/in² board density and automated high-speed placement |
| Tight Voltage Tolerance | ±3.3% at 30 V (Grade B) - reduces need for post-calibration in factory-set voltage references and trimming circuits |
| Low Dynamic Resistance | 80 Ω at 2 mA - improves line/load regulation in feedback networks of DC-DC converters and LDOs |
| High Junction Temperature Rating | 150°C - allows operation in thermally constrained environments such as enclosed industrial controllers and automotive ECUs |
Applications
| Industrial Sensor Biasing | DC-DC Converter Feedback |
|---|---|
|
Use Scenario: Providing stable excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing fixed 30 V bias point independent of supply rail fluctuations. Use Value: Enables <10 ppm/°C system-level offset drift by anchoring sensor excitation to a low-drift, low-noise zener node. |
Use Scenario: Setting output voltage in isolated flyback or forward converter feedback loops using optocoupler-coupled error amplifiers. IC Role / Device Role / Timing Role: Precision voltage clamp defining upper threshold for TL431-type error amplifier reference input. Use Value: Maintains ±1.5% output regulation across line/load/temperature when used with 1% feedback resistors and low-leakage optocouplers. |
| Overvoltage Protection Clamp | Microcontroller Reset Circuit |
|
Use Scenario: Protecting 3.3 V or 5 V logic rails from transient surges in industrial I/O modules exposed to inductive switching noise. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess energy to ground when input exceeds 30 V threshold. Use Value: Limits peak voltage to <33 V during 100 ns transients, preventing latch-up or gate oxide damage in downstream CMOS ICs. |
Use Scenario: Generating clean, temperature-stable reset signal for ARM Cortex-M microcontrollers in battery-backed data loggers. IC Role / Device Role / Timing Role: Reference element in RC-based supervisor circuit triggering reset when VCC falls below 2.7 V. Use Value: Delivers <±0.5% reset threshold accuracy over –40°C to +85°C due to predictable γZ and low IR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage stabilization applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C30LT1G (onsemi) | 30 V nominal, ±5% tolerance, 350 mW Pd, SOT-23 package, 2-pin (no NC) | Higher power rating but wider voltage tolerance; lacks NC pin - requires PCB redesign for pin compatibility | Select when higher surge power handling is required and board layout permits 2-pin footprint change |
| MMSZ5256ET1G (onsemi) | 30 V nominal, ±5% tolerance, 500 mW Pd, SOD-123 package, 2-pin, rd = 45 Ω | Lower dynamic resistance and higher power, but larger footprint and different thermal profile | Prefer for high-current reference nodes where 80 Ω rd of HZM30NBTL-E causes unacceptable regulation error |
Compared with BZX84-C30LT1G and MMSZ5256ET1G, the HZM30NBTL-E offers tighter voltage tolerance (±3.3% vs. ±5%), a dedicated NC pin enabling mechanical stability in fine-pitch layouts, and optimized thermal resistance for MPAK's compact footprint-making it preferable for space-constrained, high-accuracy analog subsystems.
Availability
HZM30NBTL-E is available at Aetrix Electronics and suitable for industrial sensor biasing, DC-DC converter feedback, and overvoltage protection applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for HZM30NBTL-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 leader delivering microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications-with emphasis on reliability, longevity, and functional safety compliance.
The HZM-N Series belongs to Renesas' discrete voltage reference product line, engineered specifically for high-precision, low-drift stabilization in analog signal chains and power management subsystems where thermal stability and tight initial tolerance are critical.
FAQ
What is the zener voltage tolerance of HZM30NBTL-E at 2 mA?
The HZM30NBTL-E has a zener voltage range of 28.0 V to 32.0 V at IZ = 2 mA, corresponding to a ±3.3% tolerance about the nominal 30 V value. This grade-B specification is confirmed in the Electrical Characteristics table on page 2 of R07DS0358EJ0600 Rev.6.00 and applies directly to the HZM30NBTL-E variant.
Does HZM30NBTL-E require a current-limiting resistor in circuit operation?
Yes, the HZM30NBTL-E must be used with an external series current-limiting resistor to establish the required zener test current (2 mA) and prevent thermal runaway. The resistor value is calculated as R = (VIN − 30 V) / 2 mA, where VIN is the unregulated input voltage. This requirement is inherent to all shunt Zener diodes, including the HZM30NBTL-E.
What is the meaning of the "NC" pin on HZM30NBTL-E?
Pin 1 of the HZM30NBTL-E is designated "NC" (No Connect) - it is electrically isolated and serves only a mechanical role in the MPAK package. Per the Pin Arrangement diagram on page 1 of R07DS0358EJ0600, this terminal must not be soldered or routed on the PCB, as connection could induce stress or parasitic coupling affecting HZM30NBTL-E stability.
Can HZM30NBTL-E be used in place of a 30 V Zener diode in an existing SOT-23 design?
No - the HZM30NBTL-E uses a 3-pin MPAK package (PLSP0003ZC-A) with a distinct 1.0 mm × 1.3 mm footprint and NC pin, whereas SOT-23 is a 3-pin package with different dimensions, pin pitch, and no NC terminal. Direct substitution would require PCB layout revision; the HZM30NBTL-E is not pin-compatible with SOT-23 Zeners.
What is the maximum reverse current specification for HZM30NBTL-E at 23.0 V?
The HZM30NBTL-E specifies a maximum reverse current (IR) of 2 µA at VR = 23.0 V, as stated in the Electrical Characteristics table on page 3 of R07DS0358EJ0600 Rev.6.00. This low leakage supports high-impedance bias networks and minimizes quiescent power loss in always-on monitoring circuits using the HZM30NBTL-E.
HZM30NBTL-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:
- -
HZM30NBTL-E FAQ
1.How can I place an order for HZM30NBTL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM30NBTL-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 HZM30NBTL-E reliable?
The price and inventory of HZM30NBTL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM30NBTL-E is usually 5 days.
3.What payment methods are accepted for HZM30NBTL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM30NBTL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM30NBTL-E?
HZM30NBTL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM30NBTL-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 HZM30NBTL-E?
For technical support, including HZM30NBTL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM30NBTL-E requirements.
6.How does Aetrix verify that HZM30NBTL-E is sourced from the original manufacturer or authorized distributors?
All HZM30NBTL-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 HZM30NBTL-E meets industry standards.
7.What is the process for return or replacement of HZM30NBTL-E?
All HZM30NBTL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM30NBTL-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 HZM30NBTL-E part is unused and in its original packaging.
Return procedure for HZM30NBTL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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