Renesas HZL6.2Z4KRF-E
- Part No.:
- HZL6.2Z4KRF-E
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
HZL6.2Z4KRF-E.pdf
- Description:
- TVS DIODE 5.5VWM 2EFP
- Quantity:
- Payment:

- Shipping:

Inventory:20,000
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Product details
Overview
HZL6.2Z4KRF-E from Renesas Electronics is a silicon planar Zener diode designed for ESD and surge protection on low-voltage signal lines, featuring a nominal Zener voltage of 6.2 V (5.90–6.50 V at 5 mA), 4.0 pF maximum capacitance, 100 mW power dissipation, and ESD capability up to ±8 kV per IEC 61000-4-2 (150 pF/330 Ω). It is used in high-speed interface protection such as USB 2.0, HDMI, and audio line inputs.
For engineers reviewing the HZL6.2Z4KRF-E datasheet, HZL6.2Z4KRF-E pinout, HZL6.2Z4KRF-E application, or HZL6.2Z4KRF-E equivalent, key selection criteria include clamping voltage stability under transient stress, ultra-low capacitance for signal integrity preservation, junction temperature limits (150°C), and compatibility with automated SMT assembly on polyimide PCBs.
Technical Context
This device operates as a bidirectional transient voltage suppressor leveraging Zener breakdown in both forward and reverse bias, with specified failure criterion defined as IR > 3 µA after ESD stress at VR = 5.5 V. Its low dynamic resistance (≤60 Ω at 5 mA) ensures stable clamping during fast transients.
The EFP (Extremely small Flat Package) construction enables surface-mount integration in space-constrained layouts while maintaining thermal performance up to 150°C junction temperature. The package's 0.8 mm × 1.0 mm footprint and 0.3 mm height are optimized for high-density routing on signal layers without parasitic inductance penalties.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.90–6.50 V at 5 mA: defines precise clamping threshold for 5 V logic and USB signal rails. |
| Capacitance (C) | ≤4.0 pF at 0 V, 1 MHz: preserves signal integrity on high-speed interfaces (e.g., USB 2.0 full-speed). |
| Power Dissipation (Pd) | 100 mW at 25°C: sets continuous thermal limit; derates linearly above 25°C ambient per Fig.2. |
| ESD Capability | ±8 kV (IEC 61000-4-2, 150 pF/330 Ω, 10 pulses): qualifies for Level 4 system-level ESD immunity. |
| Reverse Current (IR) | ≤3 µA at VR = 5.5 V: ensures minimal leakage in standby mode for battery-powered devices. |
| Dynamic Resistance (rd) | ≤60 Ω at 5 mA: maintains tight voltage regulation during fast surge events. |
Pinout & Package
Package: Extremely Small Flat Package (EFP), 2-pin SMD, dimensions 0.8 ± 0.05 mm × 1.0 ± 0.05 mm × 0.3 ± 0.05 mm, cathode-marked with "Y" laser code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected signal line; carries transient current during reverse-bias clamping. |
| 2 | Anode | Connected to ground reference; completes low-impedance path for ESD discharge. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Protection | Validated for ±8 kV contact discharge in both forward and reverse directions, meeting IEC 61000-4-2 Level 4. |
| Ultra-Low Capacitance | 4.0 pF max ensures <1% signal distortion on 480 Mbps USB 2.0 differential pairs. |
| Surface-Mount Optimized Package | EFP footprint (0.8 × 1.0 mm) supports 0201-class placement accuracy and reflow compatibility. |
| Stable Zener Clamping | 5.90–6.50 V tolerance at 5 mA enables reliable overvoltage limiting on 5 V and 3.3 V buses. |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detection |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD events during cable insertion/removal in portable peripherals. IC Role / Device Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 4.0 pF capacitance avoids signal rise-time degradation; ±8 kV rating exceeds USB-IF compliance requirement. | Use Scenario: Safeguarding HPD (Hot-Plug Detect) pin from electrostatic discharge during HDMI cable mating. IC Role / Device Role: Low-leakage Zener clamp referenced to ground, enabling clean logic-level detection. Use Value: ≤3 µA reverse current prevents false HPD assertion; 6.2 V clamping aligns with 5 V tolerant input structure. |
| Audio Line Inputs | Industrial Sensor Interfaces |
Use Scenario: Shielding analog audio inputs (e.g., 3.5 mm jack) from user-hand ESD in consumer audio equipment. IC Role / Device Role: Signal-line TVS diode with grounded anode configuration. Use Value: Sub-6.5 V clamping prevents op-amp input stage damage; low C avoids high-frequency roll-off. | Use Scenario: Protecting 4–20 mA current-loop sensor inputs from field-induced surges in factory automation. IC Role / Device Role: Primary front-end surge absorber before precision current-sense amplifier. Use Value: 100 mW Pd supports short-duration transients; 150°C Tj rating accommodates industrial ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener-based ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSZ6.2A-2 | Zener voltage tighter tolerance (6.0–6.4 V); same EFP package; 3.5 pF typical capacitance. | Slightly lower clamping variance suits precision 5 V rail monitoring. | Select when tighter VZ distribution is required for margin-critical designs. |
| CM1213-04SO | Quad-channel array in SO-8; 6.8 V nominal clamping; 12 pF typical per channel. | Higher capacitance limits use to lower-speed interfaces (≤10 Mbps); multi-line integration reduces BOM count. | Choose for multi-line protection where board space permits larger package and higher C is acceptable. |
Compared with NSZ6.2A-2 and CM1213-04SO, the HZL6.2Z4KRF-E offers the lowest capacitance (≤4.0 pF) in a single-channel EFP package, making it optimal for high-speed signal lines where bandwidth preservation is critical-though it lacks multi-line integration or tighter VZ tolerance.
Availability
HZL6.2Z4KRF-E is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI hot-plug detection circuits, and industrial analog sensor front-ends requiring stable component supply and long-term obsolescence management.
Supply support for HZL6.2Z4KRF-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 manufacturer specializing in microcontrollers, analog, power, and mixed-signal solutions for automotive, industrial, and consumer systems.
The HZL6.2Z4KRF-E belongs to Renesas' legacy ESD protection diode product line, engineered specifically for ultra-low-capacitance, surface-mount surge absorption in high-speed digital and analog signal paths.
FAQ
What is the Zener voltage tolerance of HZL6.2Z4KRF-E at 5 mA test current?
The HZL6.2Z4KRF-E has a Zener voltage range of 5.90 V to 6.50 V when measured at IZ = 5 mA with a 40 ms pulse. This 6.2 V nominal rating provides consistent clamping behavior across production lots and supports reliable overvoltage protection on 5 V logic and interface lines. The specification is validated per the official Renesas datasheet Rev.1.00.
Does HZL6.2Z4KRF-E meet IEC 61000-4-2 ESD immunity standards?
Yes, the HZL6.2Z4KRF-E is rated for ±8 kV contact discharge per IEC 61000-4-2 (150 pF/330 Ω, 10 pulses in both forward and reverse directions). Post-stress verification requires IR ≤ 3 µA at VR = 5.5 V. This performance makes HZL6.2Z4KRF-E suitable for Level 4 system-level ESD compliance in end equipment.
What is the maximum operating junction temperature for HZL6.2Z4KRF-E?
The maximum junction temperature (Tj) for HZL6.2Z4KRF-E is 150°C, as specified in the Absolute Maximum Ratings table. This allows operation in industrial environments with elevated ambient temperatures, provided PCB thermal design maintains junction-to-ambient thermal resistance within limits derived from the 100 mW power dissipation rating at 25°C.
Can HZL6.2Z4KRF-E be used in bidirectional signal protection applications?
Yes, HZL6.2Z4KRF-E is explicitly characterized for ESD protection in both forward and reverse directions, with identical ±8 kV rating and post-stress validation criteria. Its symmetric Zener structure enables effective clamping on AC-coupled or differential signal lines like USB D+/D− without polarity constraints.
What is the recommended soldering method for HZL6.2Z4KRF-E?
Renesas advises against using a soldering iron due to mechanical stress risks on the EFP package. Reflow soldering per J-STD-020 profile is recommended. The lead material is exposed at the cutting plane, ensuring reliable wetting; however, thermal cycling must stay within the specified storage temperature range (−55°C to +150°C) to preserve long-term reliability of HZL6.2Z4KRF-E.
HZL6.2Z4KRF-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 5.9V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 4pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-EFP
HZL6.2Z4KRF-E FAQ
1.How can I place an order for HZL6.2Z4KRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZL6.2Z4KRF-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 HZL6.2Z4KRF-E reliable?
The price and inventory of HZL6.2Z4KRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZL6.2Z4KRF-E is usually 5 days.
3.What payment methods are accepted for HZL6.2Z4KRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZL6.2Z4KRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZL6.2Z4KRF-E?
HZL6.2Z4KRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZL6.2Z4KRF-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 HZL6.2Z4KRF-E?
For technical support, including HZL6.2Z4KRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZL6.2Z4KRF-E requirements.
6.How does Aetrix verify that HZL6.2Z4KRF-E is sourced from the original manufacturer or authorized distributors?
All HZL6.2Z4KRF-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 HZL6.2Z4KRF-E meets industry standards.
7.What is the process for return or replacement of HZL6.2Z4KRF-E?
All HZL6.2Z4KRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZL6.2Z4KRF-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 HZL6.2Z4KRF-E part is unused and in its original packaging.
Return procedure for HZL6.2Z4KRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZL6.2Z4KRF-E Tags

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