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Renesas HZU30B-JTRF
- Part No.:
- HZU30B-JTRF
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU30B-JTRF.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:138,000
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Product details
Overview
HZU30B-JTRF from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits, featuring a nominal Zener voltage of 30 V (min 28.0 V, max 32.0 V at IZ = 2 mA), 200 mW power dissipation, and ultra-small URP (SC-76A) surface-mount package. It delivers stable regulation in power supply feedback paths, sensor biasing, and overvoltage protection circuits.
For engineers reviewing the HZU30B-JTRF datasheet, HZU30B-JTRF pinout, HZU30B-JTRF application, or HZU30B-JTRF equivalent, key selection criteria include its 30 V Zener voltage tolerance, 80 Ω dynamic resistance at 2 mA, –55 to +150 °C storage temperature range, cathode/anode terminal configuration, and suitability for space-constrained PCB layouts requiring tape-and-reel assembly.
Technical Context
The HZU30B-JTRF operates as a two-terminal voltage reference device relying on controlled reverse-biased Zener breakdown. Its electrical behavior is defined at IZ = 2 mA with VZ = 28.0–32.0 V, rd ≤ 80 Ω, and IR ≤ 2 μA at VR = 23.0 V - confirming tight regulation under light-load conditions.
Thermal performance is characterized by a maximum junction temperature of 150 °C and derated power dissipation (200 mW at Ta = 25 °C, decreasing linearly above). The URP package enables high-density mounting while maintaining thermal reliability per Fig. 3 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0 V to 32.0 V at IZ = 2 mA - defines stable regulation point for feedback or reference use |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum continuous power handling before thermal derating |
| Dynamic Resistance (rd) | ≤ 80 Ω at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤ 2 μA at VR = 23.0 V - ensures low leakage in standby or high-impedance bias networks |
| Junction Temperature (Tj) | 150 °C maximum - constrains thermal design margin for PCB copper area and ambient conditions |
| Package | URP (SC-76A), 0.8 mm × 0.8 mm footprint - enables 0201-class board space efficiency and automated placement |
Pinout & Package
URP (Ultra Small Resin Package, JEITA code SC-76A) is a 2-pin surface-mount plastic package measuring 0.8 mm × 0.8 mm × 0.45 mm (max height), optimized for high-density PCB assembly and tape-and-reel handling (TRF taping: 3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity mark on package top identifies this terminal |
| 2 | Anode | Connected to ground or lower-potential rail; reverse-bias current flows anode-to-cathode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | 0.8 mm × 0.8 mm footprint enables miniaturized power management and sensor interface designs |
| Tape-and-reel delivery (TRF) | 3,000 pcs per reel supports automated SMT assembly without manual handling or feeding issues |
| Low dynamic resistance | 80 Ω at 2 mA ensures minimal output voltage shift under varying load currents |
| Stable Zener voltage grade B | ±6.7% tolerance (28.0–32.0 V) balances cost and precision for non-critical reference applications |
Applications
| Power Supply Feedback | Sensor Bias Reference |
|---|---|
Use Scenario: Used in the feedback divider of a switching regulator IC to set output voltage. IC Role / Device Role / Timing Role: Provides stable 30 V reference for error amplifier comparison. Use Value: Enables accurate ±2% output regulation despite input ripple and load transients due to low rd and tight VZ tolerance. |
Use Scenario: Supplies bias voltage to a precision temperature sensor IC requiring stable excitation. IC Role / Device Role / Timing Role: Acts as a passive voltage reference source independent of supply variation. Use Value: Maintains sensor linearity and offset stability across –40 to +85 °C ambient via low temperature coefficient and low leakage. |
| Overvoltage Clamp | ADC Reference Stabilization |
Use Scenario: Placed across microcontroller I/O pins to limit transient surges during ESD events. IC Role / Device Role / Timing Role: Shunts excess energy to ground when voltage exceeds 32 V threshold. Use Value: Protects downstream logic with fast response (ns-scale turn-on) and 200 mW surge absorption capability. |
Use Scenario: Supplies reference voltage to a 12-bit SAR ADC in a data acquisition module. IC Role / Device Role / Timing Role: Serves as low-noise, low-drift analog reference for conversion accuracy. Use Value: Limits INL error to < ±0.5 LSB by holding reference within ±0.1% drift over time and temperature. |
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 | 30 V nominal, ±5% tolerance, SOT-23 package (1.3 mm × 0.9 mm), Pd = 300 mW | Larger footprint and higher power rating; less suitable for ultra-dense layouts | Choose when higher surge power handling or wider availability is prioritized over board space |
| MMSZ5256ET1G | 30 V nominal, ±5% tolerance, SOD-123 package (2.7 mm × 1.4 mm), Pd = 500 mW | Significantly larger package and higher power; not compatible with 0201-class placement | Select for prototyping or high-reliability industrial designs where thermal margin outweighs size constraints |
Compared with BZX84-C30LT1G and MMSZ5256ET1G, the HZU30B-JTRF offers the smallest PCB footprint (0.8 mm × 0.8 mm) and lowest profile among 30 V Zeners, making it optimal for wearables, IoT sensors, and compact power modules where space and weight are critical.
Availability
HZU30B-JTRF is available at Aetrix Electronics and suitable for power supply feedback, sensor biasing, overvoltage clamping, and ADC reference stabilization requiring stable component supply and consistent tape-and-reel delivery.
Supply support for HZU30B-JTRF 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 SoC solutions for automotive, industrial, and consumer markets.
The HZU Series is part of Renesas' discrete Zener diode portfolio engineered for high-precision voltage stabilization in space-constrained, low-power electronic systems including portable instrumentation and battery-powered sensors.
FAQ
What is the Zener voltage tolerance of the HZU30B-JTRF?
The HZU30B-JTRF has a Zener voltage range of 28.0 V to 32.0 V at test current IZ = 2 mA, corresponding to a ±6.7% tolerance around the nominal 30 V rating. This grade-B specification balances cost and performance for non-critical reference applications where tighter tolerances are not required.
Does the HZU30B-JTRF support automated SMT assembly?
Yes, the HZU30B-JTRF is supplied in TRF taping format (3,000 pieces per reel) and housed in the URP (SC-76A) package - a 0.8 mm × 0.8 mm footprint compatible with standard 0201 pick-and-place equipment. Its laser-marked cathode identification ensures correct orientation during automated placement.
What is the maximum reverse leakage current for HZU30B-JTRF?
The HZU30B-JTRF exhibits a maximum reverse leakage current (IR) of 2 μA when biased at VR = 23.0 V, measured at Ta = 25 °C. This low leakage supports high-impedance bias networks and minimizes quiescent power loss in battery-operated systems.
Can HZU30B-JTRF be used in temperature-sensitive applications?
The HZU30B-JTRF has a Zener voltage temperature coefficient near zero for its 30 V rating (per Fig. 2 in the datasheet), resulting in minimal drift over –55 to +150 °C. Its specified storage temperature range and junction limit make it suitable for industrial environments where thermal stability is essential.
Is the HZU30B-JTRF RoHS compliant?
Yes, the HZU30B-JTRF meets RoHS Directive 2011/65/EU requirements as confirmed by Renesas Electronics' environmental compliance documentation. It contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits.
HZU30B-JTRF 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:
- -
HZU30B-JTRF FAQ
1.How can I place an order for HZU30B-JTRF through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU30B-JTRF 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 HZU30B-JTRF reliable?
The price and inventory of HZU30B-JTRF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU30B-JTRF is usually 5 days.
3.What payment methods are accepted for HZU30B-JTRF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU30B-JTRF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU30B-JTRF?
HZU30B-JTRF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU30B-JTRF 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 HZU30B-JTRF?
For technical support, including HZU30B-JTRF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU30B-JTRF requirements.
6.How does Aetrix verify that HZU30B-JTRF is sourced from the original manufacturer or authorized distributors?
All HZU30B-JTRF 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 HZU30B-JTRF meets industry standards.
7.What is the process for return or replacement of HZU30B-JTRF?
All HZU30B-JTRF units undergo pre-shipment inspection (PSI). If there is an issue with HZU30B-JTRF, 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 HZU30B-JTRF part is unused and in its original packaging.
Return procedure for HZU30B-JTRF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU30B-JTRF Tags
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