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Renesas HZC11TRF-E
- Part No.:
- HZC11TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZC11TRF-E.pdf
- Description:
- DIODE ZENER
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Inventory:12,000
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Product details
Overview
HZC11TRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for surge absorption in low-power signal line protection circuits, featuring a nominal Zener voltage of 11.0 V (min 10.44 V, max 11.56 V), 150 mW power dissipation, 30 kV ESD capability (IEC 61000-4-2), and ultra-small UFP (SC-79) surface-mount package. It operates within −55°C to +150°C storage range and supports stable clamping in USB, I²C, and sensor interface lines.
For engineers reviewing the HZC11TRF-E datasheet, HZC11TRF-E pinout, HZC11TRF-E application, or HZC11TRF-E equivalent, key selection criteria include Zener voltage tolerance (±5%), dynamic resistance (≤30 Ω at 5 mA), thermal coefficient (−0.03 %/°C), and compatibility with automated SMT assembly due to its tape-and-reel delivery format and 0.8 mm × 1.2 mm footprint.
Technical Context
This device functions as a precision voltage reference and transient voltage suppressor in low-energy signal paths. Its planar Zener structure ensures stable breakdown characteristics with low leakage (<0.5 µA at 8.0 V) and tight voltage distribution across production lots.
The HZC11TRF-E is optimized for bidirectional ESD protection per IEC 61000-4-2 (±30 kV contact, ±30 kV air), with junction temperature limited to 150°C and thermal coefficient of −0.03 %/°C - enabling predictable clamping behavior over industrial temperature ranges without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.44–11.56 V at 5 mA - defines precise clamping threshold for overvoltage events in 12 V nominal systems |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - limits thermal rise during repetitive transients; derates linearly above 25°C |
| Dynamic Resistance (rd) | ≤30 Ω at IZ = 5 mA - ensures minimal voltage shift under surge current, preserving signal integrity |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 8.0 V - guarantees negligible standby current in battery-powered sensor nodes |
| ESD Capability | ±30 kV (contact & air, IEC 61000-4-2) - meets Level 4 immunity for handheld and industrial I/O interfaces |
| Temperature Coefficient | −0.03 %/°C - enables stable clamping across −40°C to +85°C operating range without calibration |
| Package | UFP (SC-79), 0.8 mm × 1.2 mm - supports high-density PCB layouts and reflow-compatible assembly |
Pinout & Package
Ultra-small Flat Lead Package (UFP / SC-79), 2-terminal surface-mount device with cathode-marked top-side orientation and 0.0016 g typical mass. Designed for JEDEC-compliant reflow profiles and compatible with standard 0402-sized pick-and-place equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected line; carries surge current during reverse-bias clamping |
| 2 | Anode | Ground reference node; establishes Zener breakdown path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Taped delivery (EIA-481-D compliant) | Enables high-speed automated placement without manual handling or static risk |
| Ultra-small UFP (SC-79) footprint | Reduces PCB area by >50% vs. SOD-323, critical for space-constrained IoT sensor modules |
| Bidirectional ESD protection | Protects both positive and negative transients on same line without external polarity components |
| Low dynamic impedance (≤30 Ω) | Minimizes clamping voltage overshoot during fast-rising ESD pulses (e.g., human-body model) |
| Stable Zener voltage tolerance (±5%) | Eliminates need for post-production trimming in factory-calibrated measurement subsystems |
Applications
| USB 2.0 Data Lines | I²C Bus Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB peripherals against electrostatic discharge during plug/unplug cycles. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: Maintains signal integrity below 480 Mbps while absorbing ±30 kV contact ESD without latch-up or degradation. |
Use Scenario: Safeguarding SDA/SCL lines in smart sensors and microcontroller-based control systems exposed to board-level ESD. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp that avoids signal distortion on 100 kHz–400 kHz open-drain bus. Use Value: Adds <1 pF parasitic capacitance and preserves rise/fall times required for multi-master arbitration. |
| Automotive Cabin Sensors | Industrial Analog Input Modules |
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., temperature, humidity) in non-safety-critical automotive interior modules. IC Role / Device Role / Timing Role: Zener-based overvoltage clamp referenced to chassis ground, compliant with AEC-Q200 stress testing. Use Value: Withstands repeated 12 V load-dump surges up to 150 mW peak power without parameter drift. |
Use Scenario: Shielding 4–20 mA current loop inputs and 0–10 V analog channels from field-induced transients in PLC I/O cards. IC Role / Device Role / Timing Role: Precision reference clamp ensuring ADC input stays within safe common-mode range during surge events. Use Value: Tight 10.44–11.56 V Zener window prevents false triggering of overvoltage fault detection logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode surge absorption applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242B-7-F (Diodes Inc.) | Zener voltage 12 V (11.4–12.6 V), Pd = 300 mW, SOT-23 package (2.9 mm × 1.3 mm) | Larger footprint; higher power rating suits higher-energy transients but increases layout area | Select when board space allows larger package and system requires >150 mW surge handling |
| BZX584C11 (Nexperia) | Zener voltage 11 V (10.45–11.55 V), Pd = 250 mW, SOD-323 package (1.7 mm × 1.3 mm) | Higher power rating and slightly tighter VZ tolerance, but 2.5× larger footprint than UFP | Prefer for legacy designs using SOD-323 footprints or where thermal margin >150 mW is mandatory |
Compared with MMBZ5242B-7-F and BZX584C11, the HZC11TRF-E offers the smallest PCB footprint (0.8 mm × 1.2 mm) and lowest profile among 11 V Zener TVS diodes, making it optimal for ultra-compact consumer electronics - though its 150 mW rating requires careful thermal design in sustained surge environments.
Availability
HZC11TRF-E is available at Aetrix Electronics and suitable for USB interface protection, I²C bus safeguarding, and industrial analog input conditioning requiring stable component supply, consistent Zener voltage matching, and RoHS-compliant tape-and-reel logistics.
Supply support for HZC11TRF-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 global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
The HZC Series belongs to Renesas' discrete protection portfolio, engineered specifically for low-power, high-density surge suppression in signal-line applications - emphasizing miniaturization, ESD robustness, and production-ready tape-and-reel packaging.
FAQ
What is the Zener voltage tolerance of HZC11TRF-E?
The HZC11TRF-E has a Zener voltage range of 10.44 V to 11.56 V at 5 mA test current, corresponding to ±5% tolerance around the nominal 11.0 V rating. This tight distribution ensures reliable clamping in 12 V nominal systems without requiring binning or post-assembly calibration. The specification is guaranteed per Renesas' Rev.2.00 datasheet dated July 2005 and remains valid under current Renesas Electronics product stewardship.
Does HZC11TRF-E support bidirectional ESD protection?
Yes, the HZC11TRF-E provides bidirectional ESD protection rated at ±30 kV contact and ±30 kV air discharge per IEC 61000-4-2. Its symmetric Zener structure allows it to clamp both positive and negative transients on the same signal line without polarity-sensitive orientation. This makes HZC11TRF-E ideal for differential buses like USB D+/D− or I²C SDA/SCL where transient direction is unpredictable.
What package type does HZC11TRF-E use, and is it compatible with standard SMT processes?
HZC11TRF-E uses the Ultra-small Flat Lead Package (UFP), also known as SC-79, with dimensions of 0.8 mm × 1.2 mm and 0.35 mm height. It is fully compatible with standard lead-free reflow soldering profiles and automated pick-and-place equipment calibrated for 0402-sized components. The device ships in EIA-481-D-compliant tape-and-reel format, supporting high-throughput manufacturing without manual handling.
How does the temperature coefficient affect HZC11TRF-E performance in industrial environments?
The HZC11TRF-E exhibits a Zener voltage temperature coefficient of −0.03 %/°C, meaning its clamping voltage decreases by approximately 3.3 mV/°C across its operating range. At 85°C ambient, this results in ~−2 V shift from 25°C value - still within safe margins for 12 V systems. This predictable drift allows designers to maintain functional safety without active compensation, unlike higher-coefficient alternatives that require derating or thermal shielding.
Can HZC11TRF-E replace older NEC-branded Zener diodes in legacy designs?
Yes, HZC11TRF-E is the direct successor to the original NEC Electronics HZC11 part, maintained under Renesas Electronics after the 2010 merger. Pinout, electrical specs, package dimensions, and marking code ('11' laser mark with cathode indicator) remain identical. Renesas explicitly confirms backward compatibility in documentation, and no PCB or schematic changes are needed when migrating from legacy NEC-labeled HZC11 units to current HZC11TRF-E production lots.
HZC11TRF-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:
- -
HZC11TRF-E FAQ
1.How can I place an order for HZC11TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZC11TRF-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 HZC11TRF-E reliable?
The price and inventory of HZC11TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZC11TRF-E is usually 5 days.
3.What payment methods are accepted for HZC11TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZC11TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZC11TRF-E?
HZC11TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZC11TRF-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 HZC11TRF-E?
For technical support, including HZC11TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZC11TRF-E requirements.
6.How does Aetrix verify that HZC11TRF-E is sourced from the original manufacturer or authorized distributors?
All HZC11TRF-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 HZC11TRF-E meets industry standards.
7.What is the process for return or replacement of HZC11TRF-E?
All HZC11TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZC11TRF-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 HZC11TRF-E part is unused and in its original packaging.
Return procedure for HZC11TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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