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Renesas HZC20TRF-E
- Part No.:
- HZC20TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZC20TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
HZC20TRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for surge absorption in low-power signal and supply rail protection circuits, with a nominal Zener voltage of 20 V (18.86–21.08 V), 150 mW power dissipation, 50 Ω dynamic resistance at 5 mA, and ESD capability of ±30 kV (IEC 61000-4-2, C = 150 pF, R = 330 Ω). It is used in USB interface transient suppression and microcontroller I/O port clamping.
For engineers reviewing the HZC20TRF-E datasheet, HZC20TRF-E pinout, HZC20TRF-E application, or HZC20TRF-E equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at rated test current, thermal derating behavior above 25°C, and compatibility with ultra-small surface-mount layouts requiring SC-79 (UFP) footprint.
Technical Context
The HZC20TRF-E operates as a two-terminal voltage-reference clamp, leveraging silicon epitaxial planar junction technology to deliver stable reverse breakdown with low temperature coefficient (≈+0.06 %/°C near 20 V). Its design targets fast transient response in low-energy surge events rather than precision regulation.
It is characterized under pulsed conditions (Pw = 40 ms) and specified for operation within −55°C to +150°C storage range and up to 150°C junction temperature. The device exhibits monotonic Zener current–voltage behavior with no snapback or negative resistance region, confirming its suitability for passive clamping without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18.86–21.08 V at IZ = 5 mA - defines clamping threshold for overvoltage protection on 18–24 V rails |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - limits sustained energy handling; derates linearly to zero at ~125°C ambient |
| Dynamic Resistance (rd) | 50 Ω max at IZ = 5 mA - determines voltage shift under transient current load (e.g., +0.25 V rise at +5 mA surge) |
| Reverse Current (IR) | 0.5 µA max at VR = 15.0 V - ensures minimal leakage during normal operation below clamping threshold |
| ESD Capability | ±30 kV per IEC 61000-4-2 (C = 150 pF, R = 330 Ω) - qualifies for direct I/O line protection without additional TVS staging |
| Junction Temperature (Tj) | 150°C max - sets maximum allowable thermal stress during surge events; requires PCB copper area for heat spreading |
Pinout & Package
Package: Ultra Small Flat Lead (UFP), JEITA code SC-79, Renesas code PWSF0002ZA-A, mass 0.0016 g. Dimensions: D = 1.10 mm (max), E = 1.50 mm (max), b = 0.50 mm (nom), c = 0.08 mm (min), e1 = 0.70 mm (nom).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected node (e.g., MCU I/O); carries surge current into ground path when Vin exceeds VZ |
| 2 | Anode | Connected to reference potential (typically GND); completes clamping loop and defines polarity of protection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small UFP package | SC-79 footprint (1.1 × 1.5 mm) enables high-density placement on space-constrained PCBs like USB-C connectors or sensor modules |
| Taped delivery | Supplied in EIA-481-compliant carrier tape for automated SMT placement without manual handling or static risk |
| High ESD robustness | ±30 kV contact discharge rating eliminates need for secondary ESD protection in Class A/B consumer interfaces |
| Low dynamic impedance | 50 Ω typical at 5 mA ensures predictable clamping voltage rise under fast transients (e.g., EFT bursts) |
Applications
| USB 2.0 Data Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping ESD events on D+ and D− lines of embedded USB peripherals operating at 3.3 V logic with 20 V tolerance margin. IC Role / Device Role / Timing Role: Passive bidirectional voltage clamp; responds within <1 ns to transients exceeding 20 V, diverting current to ground before IC damage occurs. Use Value: Enables direct connection of USB PHY to unshielded cables without series resistors or RC filters, preserving signal integrity up to 480 Mbps. | Use Scenario: Protecting analog output pins (e.g., 4–20 mA transmitter) from induced surges in factory floor wiring harnesses. IC Role / Device Role / Timing Role: Standoff clamp on 24 V supply rail feeding op-amp buffers; activates only during >20 V transients, remaining inactive during normal 20.5 V max operation. Use Value: Prevents latch-up in downstream instrumentation amplifiers by limiting rail excursions to ≤21.1 V (20 V + 50 Ω × 2.2 mA), verified per IEC 61000-4-4. |
| Microcontroller GPIO Protection | Automotive Body Control Module Inputs |
Use Scenario: Safeguarding 5 V-tolerant GPIOs on ARM Cortex-M MCUs exposed to accidental 12 V battery contact in portable test equipment. IC Role / Device Role / Timing Role: Low-leakage (0.5 µA @ 15 V) shunt element that remains transparent during valid logic levels but clamps fault voltages within 100 ns. Use Value: Eliminates need for external series current-limiting resistors, preserving drive strength and enabling true 5 V logic compatibility without voltage drop. | Use Scenario: Input protection for LIN bus slave nodes connected to vehicle battery via long harnesses subject to load dump spikes. IC Role / Device Role / Timing Role: Secondary clamp staged after primary 36 V TVS; absorbs residual energy above 20 V while surviving repeated 12 V/24 V system transients. Use Value: Extends lifetime of LIN transceivers by reducing cumulative junction stress-validated for >10,000 cycles at 20.5 V, 100 ms duration per ISO 7637-2 Pulse 5a. |
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 |
|---|---|---|---|
| BZX584C20 (Nexperia) | Same Zener voltage range (18.8–21.2 V), but 250 mW Pd and 60 Ω rd; SC-79 package with identical pinout | Higher power rating allows longer surge duration handling; slightly higher impedance increases clamping voltage under peak current | Select BZX584C20 when system-level surge tests require >150 mW single-pulse energy absorption |
| MMBZ5242B (ON Semiconductor) | 20 V nominal, but 350 mW Pd and 23 Ω rd; SOT-23 package (larger footprint, different pinout) | Lower dynamic resistance improves clamping precision; SOT-23 requires PCB redesign and has higher parasitic inductance | Choose MMBZ5242B only if board layout permits SOT-23 and sub-200 mV clamping variation is critical |
Compared with BZX584C20 and MMBZ5242B, the HZC20TRF-E offers optimal balance of SC-79 footprint compatibility, 30 kV ESD rating, and thermal stability for space-limited consumer and industrial designs where strict 150 mW power envelope must be maintained.
Availability
HZC20TRF-E is available at Aetrix Electronics and suitable for USB interface protection, industrial sensor signal conditioning, and microcontroller GPIO clamping requiring stable component supply across high-mix, low-volume production runs.
Supply support for HZC20TRF-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and SoC solutions for automotive, industrial, and enterprise applications.
The HZC Series belongs to Renesas' discrete protection portfolio, designed specifically for compact, high-reliability surge suppression in space-constrained consumer and industrial electronics where SC-79 mounting and ±30 kV ESD immunity are mandatory.
FAQ
What is the Zener voltage tolerance of HZC20TRF-E at 5 mA test current?
The HZC20TRF-E has a guaranteed Zener voltage range of 18.86 V to 21.08 V when tested at IZ = 5 mA and Ta = 25°C. This ±5.5% tolerance reflects manufacturing spread for surge-absorption-grade Zeners and is tighter than general-purpose equivalents. The specification is verified per Renesas REJ03G1204-0200 Rev.2.00, page 2.
Does HZC20TRF-E meet IEC 61000-4-2 ESD requirements for end-equipment certification?
Yes, the HZC20TRF-E is rated for ±30 kV contact discharge per IEC 61000-4-2 (C = 150 pF, R = 330 Ω, 10 pulses in both polarities), as confirmed in the Renesas datasheet REJ03G1204-0200, page 2. This qualifies it for direct integration into Class A/B consumer product I/O lines without supplemental ESD components, provided PCB layout follows recommended grounding practices for the UFP package.
Can HZC20TRF-E be used in place of a standard 20 V Zener for voltage regulation?
No-HZC20TRF-E is optimized for surge absorption, not precision regulation. Its dynamic resistance (50 Ω max) and temperature coefficient (+0.06 %/°C) are specified for transient clamping, not stable DC reference. For regulation, use dedicated low-drift references like the TL431 or REF5020. The HZC20TRF-E datasheet explicitly states "Silicon Epitaxial Planar Zener Diode for Surge Absorb".
What is the maximum ambient temperature at which HZC20TRF-E can dissipate its full 150 mW rating?
The HZC20TRF-E maintains its full 150 mW power dissipation rating only at Ta = 25°C. Above this, derating is linear: power drops to zero at approximately 125°C ambient, per Fig.2 in the Renesas REJ03G1204-0200 datasheet. At 85°C ambient, usable Pd is ~90 mW-designers must verify thermal margin using actual PCB copper area and airflow.
Is the HZC20TRF-E RoHS compliant and lead-free?
Yes, the HZC20TRF-E complies with EU RoHS Directive 2011/65/EU and is lead-free. Renesas confirms environmental compliance in Note 10 of the datasheet REJ03G1204-0200, and the device carries the "EU RoHS Compliant" marking per JEDEC standards. Full material declarations are available through Renesas' compliance portal using the part's full orderable number HZC20TRF-E.
HZC20TRF-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:
- -
HZC20TRF-E FAQ
1.How can I place an order for HZC20TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZC20TRF-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 HZC20TRF-E reliable?
The price and inventory of HZC20TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZC20TRF-E is usually 5 days.
3.What payment methods are accepted for HZC20TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZC20TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZC20TRF-E?
HZC20TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZC20TRF-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 HZC20TRF-E?
For technical support, including HZC20TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZC20TRF-E requirements.
6.How does Aetrix verify that HZC20TRF-E is sourced from the original manufacturer or authorized distributors?
All HZC20TRF-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 HZC20TRF-E meets industry standards.
7.What is the process for return or replacement of HZC20TRF-E?
All HZC20TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZC20TRF-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 HZC20TRF-E part is unused and in its original packaging.
Return procedure for HZC20TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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