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Renesas HZC3.3TRF-E
- Part No.:
- HZC3.3TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZC3.3TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
HZC3.3TRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for surge absorption in low-voltage signal and power rail protection circuits, with a nominal Zener voltage of 3.3 V (3.10–3.50 V), 20 µA maximum reverse current at 1.0 V, 130 Ω dynamic resistance at 5 mA, 150 mW power dissipation, and ESD capability of ±30 kV (HBM, C=150 pF, R=330 Ω).
For engineers reviewing the HZC3.3TRF-E datasheet, HZC3.3TRF-E pinout, HZC3.3TRF-E application, or HZC3.3TRF-E equivalent, key selection criteria include its ultra-small UFP package (SC-79), tight Zener voltage tolerance, low dynamic impedance for clamping fidelity, thermal stability up to 150°C junction temperature, and suitability for space-constrained consumer and industrial PCBs requiring robust transient suppression.
Technical Context
The HZC3.3TRF-E operates as a precision voltage reference and transient voltage suppressor in forward-biased or reverse-biased configurations, leveraging silicon epitaxial planar construction for stable breakdown characteristics. Its design targets low-energy surge events-such as ESD and inductive switching spikes-in 3.3 V logic rails, USB interfaces, and sensor signal conditioning paths.
It exhibits a Zener voltage temperature coefficient of approximately +0.04 %/°C (≈+1.3 mV/°C) near 3.3 V, confirmed by Fig.2 in the datasheet, and derates linearly from 150 mW at 25°C to zero at 150°C ambient per Fig.2's power vs. temperature curve. The device is rated for storage between −55°C and +150°C and requires no external biasing circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.10–3.50 V at IZ = 5 mA - defines precise clamping threshold for 3.3 V systems |
| Reverse Current (IR) | ≤20 µA at VR = 1.0 V - ensures minimal leakage in standby mode |
| Dynamic Resistance (rd) | 130 Ω at IZ = 5 mA - enables sharp voltage regulation during transient events |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - supports short-duration surge energy absorption without thermal runaway |
| ESD Capability | ±30 kV HBM (C = 150 pF, R = 330 Ω) - meets IEC 61000-4-2 Level 4 for system-level ESD immunity |
| Junction Temperature (Tj) | −55°C to +150°C - enables operation in extended-temperature industrial environments |
| Package | UFP (SC-79) - 1.7 × 1.2 × 0.6 mm footprint ideal for high-density SMT layouts |
Pinout & Package
Package: Ultra Small Flat Lead Package (UFP), JEITA code SC-79, Renesas code PWSF0002ZA-A, mass 0.0016 g, dimensions 1.70 mm × 1.20 mm × 0.60 mm (L × W × H), polyimide board compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected node (e.g., 3.3 V rail or I/O line); reverse-biased during clamping |
| 2 | Anode | Connected to ground or lower-potential reference; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small UFP package | Enables placement adjacent to IC pins on dense PCBs without sacrificing surge protection coverage |
| Taped delivery | Supports automated pick-and-place assembly with standard 8 mm carrier tape (EIA-481 compliant) |
| High ESD robustness | ±30 kV HBM rating eliminates need for additional discrete ESD components in many Class-4 designs |
| Stable Zener voltage tempco | +0.04 %/°C ensures predictable clamping across −40°C to +85°C operating range |
| Low leakage at sub-Zener voltage | 20 µA max at 1.0 V prevents loading of sensitive 1.8/3.3 V logic inputs during normal operation |
Applications
| USB 2.0 Data Line Protection | 3.3 V Microcontroller I/O Clamp |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD events during hot-plug insertion in embedded USB peripherals. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector, shunting ESD current to ground before it reaches PHY transceiver. Use Value: Leverages ±30 kV HBM rating and 130 Ω rd to limit voltage overshoot to <4.0 V, preserving USB signal integrity and avoiding PHY latch-up. | Use Scenario: Safeguarding GPIO, reset, or UART pins of 3.3 V microcontrollers exposed to user-accessible buttons or external sensors. IC Role / Device Role / Timing Role: Low-leakage Zener clamp referenced to MCU VDD, activated only during overvoltage transients. Use Value: 20 µA max reverse current at 1.0 V avoids false triggering or input loading; 3.3 V VZ aligns precisely with I/O rail for optimal margin. |
| Industrial Sensor Signal Conditioning | Low-Voltage Power Rail Clamp |
Use Scenario: Protecting analog front-end inputs of 3.3 V ADCs connected to 4–20 mA loop-powered sensors subject to field wiring surges. IC Role / Device Role / Timing Role: Precision Zener reference and surge limiter in RC-filtered signal path, stabilizing common-mode voltage during transients. Use Value: Tight 3.10–3.50 V VZ tolerance and low rd maintain signal accuracy while clamping fast-rising spikes below ADC absolute maximum ratings. | Use Scenario: Preventing overvoltage damage to 3.3 V LDO outputs or PMIC domains during load-dump or back-EMF events in motor control subsystems. IC Role / Device Role / Timing Role: Secondary rail clamp placed downstream of regulator, absorbing residual energy not handled by primary TVS or bulk capacitance. Use Value: 150 mW Pd and 150°C Tj rating allow brief 100–200 ms surge handling without thermal failure in enclosed enclosures. |
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 |
|---|---|---|---|
| MMBZ5226BS-7-F (Diodes Inc.) | 3.3 V nominal VZ, 100 mW Pd, 150 Ω rd, SOT-323 package (2.1 × 1.25 × 0.95 mm) | Larger footprint and 33% lower power rating reduce surge energy handling margin in compact designs | Select when SOT-323 is already standardized in BOM and peak surge energy is ≤50 mJ |
| BZX384-B3V3,115 (Nexperia) | 3.3 V nominal VZ, 300 mW Pd, 95 Ω rd, SOD-323 package (1.7 × 1.3 × 0.9 mm) | Higher power and lower rd improve clamping performance but SOD-323 height (0.9 mm) exceeds UFP's 0.6 mm profile | Select when enhanced surge margin is critical and board clearance allows taller component placement |
Compared with HZC3.3TRF-E, MMBZ5226BS-7-F offers identical VZ but reduced power and larger size, while BZX384-B3V3,115 delivers superior clamping fidelity at the cost of increased height-making HZC3.3TRF-E optimal for ultra-low-profile, space-constrained 3.3 V protection where 150 mW suffices.
Availability
HZC3.3TRF-E is available at Aetrix Electronics and suitable for USB interface protection, microcontroller I/O clamping, and industrial sensor signal conditioning requiring stable component supply, consistent parametric performance, and RoHS-compliant packaging.
Supply support for HZC3.3TRF-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 specializing in microcontrollers, analog, power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The HZC Series belongs to Renesas' discrete protection portfolio, designed specifically for low-voltage, high-density surge absorption in consumer and industrial electronics where miniature footprint and repeatable Zener characteristics are essential.
FAQ
What is the Zener voltage tolerance of HZC3.3TRF-E at 5 mA test current?
The HZC3.3TRF-E has a guaranteed Zener voltage range of 3.10 V to 3.50 V when tested at IZ = 5 mA and Ta = 25°C, representing a ±6.1% tolerance about the nominal 3.3 V value. This specification is explicitly listed in the "Electrical Characteristics" table on page 2 of the official Renesas datasheet REJ03G1204-0200 Rev.2.00.
Does HZC3.3TRF-E meet industry-standard ESD requirements for end equipment?
Yes, HZC3.3TRF-E is rated for ±30 kV Human Body Model (HBM) ESD per JESD22-A114, using C = 150 pF and R = 330 Ω, with testing performed in both forward and reverse directions. This exceeds IEC 61000-4-2 Level 4 (±8 kV contact, ±15 kV air) for system-level immunity, making HZC3.3TRF-E suitable for direct integration into ESD-sensitive interfaces without supplemental protection.
What is the maximum allowable junction temperature for continuous operation of HZC3.3TRF-E?
The maximum junction temperature (Tj) for HZC3.3TRF-E is +150°C, as specified in the "Absolute Maximum Ratings" table. Operation beyond this temperature risks permanent degradation of the silicon epitaxial junction. Derating begins immediately above 25°C ambient, reaching zero power dissipation at 150°C, per the thermal curve in Figure 2 of the HZC Series datasheet.
Can HZC3.3TRF-E be used in place of a standard 3.3 V Zener for voltage reference applications?
While HZC3.3TRF-E provides stable 3.3 V regulation, it is optimized for surge absorption-not precision referencing. Its dynamic resistance (130 Ω) and temperature coefficient (+0.04 %/°C) are higher than dedicated reference diodes (e.g., TL431). For voltage reference use, HZC3.3TRF-E is acceptable only in non-critical biasing or coarse threshold detection; for stable references, select a bandgap-based IC instead.
What does the "TRF" suffix indicate in HZC3.3TRF-E?
The "TRF" suffix in HZC3.3TRF-E denotes tape-and-reel packaging per EIA-481 standards, with "E" indicating lead-free (Pb-free) and RoHS-compliant construction. This matches Renesas' standard ordering nomenclature for surface-mount discrete devices, confirming full compliance with environmental regulations and automated assembly readiness.
HZC3.3TRF-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:
- -
HZC3.3TRF-E FAQ
1.How can I place an order for HZC3.3TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZC3.3TRF-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 HZC3.3TRF-E reliable?
The price and inventory of HZC3.3TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZC3.3TRF-E is usually 5 days.
3.What payment methods are accepted for HZC3.3TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZC3.3TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZC3.3TRF-E?
HZC3.3TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZC3.3TRF-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 HZC3.3TRF-E?
For technical support, including HZC3.3TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZC3.3TRF-E requirements.
6.How does Aetrix verify that HZC3.3TRF-E is sourced from the original manufacturer or authorized distributors?
All HZC3.3TRF-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 HZC3.3TRF-E meets industry standards.
7.What is the process for return or replacement of HZC3.3TRF-E?
All HZC3.3TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZC3.3TRF-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 HZC3.3TRF-E part is unused and in its original packaging.
Return procedure for HZC3.3TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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