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Renesas HZU2.7B1TRF-E
- Part No.:
- HZU2.7B1TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU2.7B1TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
HZU2.7B1TRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and digital supply rails. It delivers a nominal Zener voltage of 2.7 V (min 2.50 V, max 2.75 V) at 5 mA test current, with dynamic resistance of 100 Ω and reverse current ≤120 µA at 0.5 V, housed in an ultra-small URP (SC-76A) surface-mount package.
For engineers reviewing the HZU2.7B1TRF-E datasheet, HZU2.7B1TRF-E pinout, HZU2.7B1TRF-E application, or HZU2.7B1TRF-E equivalent, key selection criteria include its tight 2.50–2.75 V Zener tolerance (Grade B1), 200 mW power rating, 150 °C junction temperature limit, and suitability for space-constrained voltage reference and overvoltage protection circuits in portable and industrial electronics.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable DC voltage under varying load and input conditions. Its planar silicon construction ensures consistent breakdown characteristics and low temperature coefficient near zero crossing - critical for reference stability across ambient temperatures.
The URP (SC-76A) package enables high-density PCB layout with minimal thermal mass, supporting rapid thermal response and compatibility with standard reflow soldering profiles. The device is rated for storage from –55 °C to +150 °C and requires no external biasing circuitry beyond series current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.50–2.75 V at IZ = 5 mA - defines precise regulation window for low-voltage reference design |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum continuous power handling before thermal derating |
| Dynamic Resistance (rd) | 100 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤120 µA at VR = 0.5 V - indicates leakage behavior below knee voltage, critical for standby power integrity |
| Junction Temperature (Tj) | 150 °C maximum - defines upper thermal operating limit for reliability in enclosed or high-ambient environments |
| Package | URP (SC-76A), 0.8 mm × 0.8 mm footprint - enables miniaturized PCB layouts with automated assembly compatibility |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 0.8 mm × 0.8 mm × 0.45 mm (max height), mass 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Grade B1 Zener tolerance | ±0.125 V (2.50–2.75 V) at 5 mA - enables tighter voltage margin control than standard Grade B parts |
| Ultra-small URP package | 0.8 mm × 0.8 mm footprint - reduces board area by >50% vs. SOD-323, ideal for wearables and sensor nodes |
| Pulse-tested characterization | Parameters verified with 40 ms pulse width - ensures specification validity under transient loading conditions |
| Taped delivery (TRF) | 3,000 pcs/reel - supports high-speed pick-and-place assembly without manual handling or static risk |
Applications
| Portable Power Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring battery voltage in Bluetooth LE sensors with 2.8–3.6 V nominal supply. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and low-VDD brown-out detection. Use Value: Tight 2.50–2.75 V tolerance ensures accurate threshold triggering across temperature without calibration. |
Use Scenario: Providing stable bias for op-amp-based 4–20 mA transmitter front-ends in factory automation. IC Role / Device Role / Timing Role: Precision shunt reference for current loop excitation and feedback sensing. Use Value: 100 Ω dynamic resistance minimizes output drift under varying load currents up to 5 mA. |
| USB-C Port Protection | IoT Node Voltage Clamping |
|
Use Scenario: Overvoltage clamping on VBUS line during hot-plug events in USB-C accessory designs. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting transient spikes to ≤2.75 V. Use Value: Low 0.5 V reverse test voltage ensures conduction onset well below USB-C 5.5 V abs max rating. |
Use Scenario: Protecting 3.3 V MCU GPIOs from ESD and inductive kickback in smart meter modules. IC Role / Device Role / Timing Role: Bidirectional clamping element (with series resistor) for I/O rail stabilization. Use Value: 200 mW Pd rating sustains short-duration transients without thermal runaway in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C2V7LT1G | Zener voltage 2.5–2.9 V (±0.2 V), SOT-23 package (1.3 mm × 1.3 mm), 350 mW Pd | Larger footprint and higher power dissipation - better for higher-current references but less space-efficient | Select when board layout allows larger package and higher power margin is required |
| MMSZ4678T1G | Zener voltage 2.5–2.9 V (±0.2 V), SOD-123 package (1.8 mm × 1.4 mm), 500 mW Pd | Higher power rating and larger thermal mass - suited for sustained 10+ mA regulation but incompatible with ultra-dense layouts | Choose for legacy designs using SOD-123 footprints or where thermal robustness outweighs size constraints |
Compared with BZX84-C2V7LT1G and MMSZ4678T1G, the HZU2.7B1TRF-E offers the smallest footprint (0.8 mm × 0.8 mm) and tightest voltage tolerance (±0.125 V), making it optimal for miniaturized, battery-powered systems where board area and reference accuracy are prioritized over raw power handling.
Availability
HZU2.7B1TRF-E is available at Aetrix Electronics and suitable for portable power monitoring, industrial sensor signal conditioning, USB-C port protection, and IoT node voltage clamping requiring stable component supply, consistent parametric performance, and RoHS-compliant packaging.
Supply support for HZU2.7B1TRF-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 timing solutions for automotive, industrial, and consumer applications.
The HZU Series belongs to Renesas' silicon planar Zener diode product line, engineered specifically for compact, high-precision voltage stabilization in space-constrained and low-power electronic systems.
FAQ
What is the Zener voltage range of the HZU2.7B1TRF-E at 5 mA test current?
The HZU2.7B1TRF-E has a specified Zener voltage range of 2.50 V to 2.75 V when tested at IZ = 5 mA, corresponding to Grade B1 tolerance per the Renesas preliminary datasheet R07DS0423EJ1000. This tight 0.25 V window supports high-accuracy voltage referencing in low-voltage circuits where ±5% deviation is unacceptable.
Is the HZU2.7B1TRF-E compatible with lead-free reflow soldering processes?
Yes, the HZU2.7B1TRF-E uses a lead-free termination finish and is qualified for standard Pb-free reflow profiles, including peak temperatures up to 260 °C. Its URP (SC-76A) package is explicitly designed for compatibility with automated surface-mount assembly and complies with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements.
Does the HZU2.7B1TRF-E have a specified temperature coefficient?
The HZU2.7B1TRF-E exhibits a Zener voltage temperature coefficient (γZ) near zero - approximately ±0.02 %/°C - as shown in Figure 2 of the datasheet for 2.7 V devices. This low drift supports stable reference performance across –40 °C to +85 °C ambient operating ranges without external compensation.
What is the maximum reverse current guaranteed for the HZU2.7B1TRF-E below its Zener knee?
The HZU2.7B1TRF-E guarantees a maximum reverse current (IR) of 120 µA when measured at VR = 0.5 V, per the Electrical Characteristics table on page 2 of the datasheet. This low leakage ensures minimal quiescent current draw in always-on monitoring circuits and preserves battery life in energy-sensitive applications.
Can the HZU2.7B1TRF-E be used as a substitute for the HZU2.7B2TRF-E in a design?
No - the HZU2.7B1TRF-E (2.50–2.75 V) and HZU2.7B2TRF-E (2.65–2.90 V) are distinct grade variants with non-overlapping Zener voltage ranges. Substituting one for the other may cause regulation failure or incorrect threshold detection; design validation must use the exact grade specified in the schematic and BOM.
HZU2.7B1TRF-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:
- -
HZU2.7B1TRF-E FAQ
1.How can I place an order for HZU2.7B1TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU2.7B1TRF-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 HZU2.7B1TRF-E reliable?
The price and inventory of HZU2.7B1TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU2.7B1TRF-E is usually 5 days.
3.What payment methods are accepted for HZU2.7B1TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU2.7B1TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU2.7B1TRF-E?
HZU2.7B1TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU2.7B1TRF-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 HZU2.7B1TRF-E?
For technical support, including HZU2.7B1TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU2.7B1TRF-E requirements.
6.How does Aetrix verify that HZU2.7B1TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU2.7B1TRF-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 HZU2.7B1TRF-E meets industry standards.
7.What is the process for return or replacement of HZU2.7B1TRF-E?
All HZU2.7B1TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU2.7B1TRF-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 HZU2.7B1TRF-E part is unused and in its original packaging.
Return procedure for HZU2.7B1TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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