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Renesas HZC5.1TRF-E
- Part No.:
- HZC5.1TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZC5.1TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:32,000
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Product details
Overview
HZC5.1TRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for surge absorption in low-power signal and power rail protection circuits, with a nominal Zener voltage of 5.1 V, 150 mW power dissipation, and ultra-small UFP (SC-79) surface-mount package. It delivers stable voltage clamping at 5 mA test current, supports ESD immunity up to ±30 kV (HBM), and is rated for junction temperatures up to 150°C.
For engineers reviewing the HZC5.1TRF-E datasheet, HZC5.1TRF-E pinout, HZC5.1TRF-E application, or HZC5.1TRF-E equivalent, key selection criteria include its 4.84–5.37 V Zener voltage tolerance, 130 Ω dynamic resistance at 5 mA, −55 to +150°C storage range, and suitability for compact, high-reliability transient suppression in consumer and industrial electronics.
Technical Context
The HZC5.1TRF-E operates as a precision voltage reference and transient voltage suppressor in reverse-biased mode, leveraging silicon epitaxial planar construction for tight VZ distribution and low temperature coefficient. Its design targets low-energy surge events-such as ESD and inductive switching spikes-in signal lines and I/O rails where fast response and minimal leakage are critical.
It is characterized at 25°C with 5 mA Zener test current, exhibits a typical Zener voltage temperature coefficient of ~−0.02 %/°C near 5.1 V (per Fig.2), and maintains ≤5.0 µA reverse current at 1.5 V (VR), enabling low standby power loss in always-on protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.84–5.37 V at IZ = 5 mA - defines clamping threshold for overvoltage protection |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - sets maximum continuous surge energy handling capability |
| Dynamic Resistance (rd) | 130 Ω max at IZ = 5 mA - determines voltage regulation stiffness during transient conduction |
| Reverse Current (IR) | ≤5.0 µA at VR = 1.5 V - ensures minimal leakage in standby, preserving system battery life |
| ESD Capability | ±30 kV per HBM (C = 150 pF, R = 330 Ω) - qualifies for robust electrostatic discharge immunity |
| Junction Temperature (Tj) | −55 to +150°C - enables operation in extended industrial ambient environments |
Pinout & Package
Package: Ultra Small Flat Lead (UFP), JEITA code SC-79, Renesas code PWSF0002ZA-A - 2-pin surface-mount package measuring 1.70 × 1.20 × 0.60 mm (L × W × H), optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected node (e.g., IC supply rail or signal line); carries surge current into ground path |
| 2 | Anode | Connected to circuit ground or lower-potential reference; completes clamping path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small UFP (SC-79) package | Enables placement directly at IC pins for shortest possible transient path and lowest inductance clamping |
| Taped delivery format | Supports high-speed pick-and-place assembly without manual handling or static risk |
| Low dynamic resistance (130 Ω) | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| High ESD rating (±30 kV HBM) | Meets or exceeds IEC 61000-4-2 Level 4 requirements without external shielding |
Applications
| USB Data Line Protection | Microcontroller I/O Clamp |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Zener clamp placed between data line and ground to shunt ESD current before it reaches the USB transceiver. Use Value: Prevents latch-up or permanent damage to USB PHY by limiting voltage excursion to ≤5.4 V during ±8 kV contact discharge. | Use Scenario: Safeguarding GPIO pins of an ARM Cortex-M microcontroller exposed to external sensors or buttons. IC Role / Device Role / Timing Role: Bidirectional clamping device referenced to MCU VSS, absorbing both positive and negative transients. Use Value: Maintains logic-level integrity under 100 ns 1 kV EFT bursts while adding <0.1 pF parasitic capacitance to preserve signal rise time. |
| Low-Voltage Power Rail Clamp | Automotive Body Control Module Input |
Use Scenario: Clamping 5 V supply rail feeding analog front-end ICs in portable medical devices. IC Role / Device Role / Timing Role: Shunt regulator operating in parallel with LDO output to absorb load-dump-induced surges. Use Value: Limits rail voltage to ≤5.5 V during 500 ms 12 V surge, preventing ADC saturation or sensor bias shift. | Use Scenario: Protecting LIN bus input pins in automotive body control modules subjected to ISO 7637-2 pulse 1 and pulse 2a. IC Role / Device Role / Timing Role: Primary transient suppressor on LIN transceiver input, working alongside series impedance. Use Value: Withstands repetitive 100 V/50 ms pulses without degradation, meeting AEC-Q200 stress screening for Grade 2 components. |
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 |
|---|---|---|---|
| BZX584-C5V1 | Same 5.1 V nominal Zener voltage but SOD-323 package (1.7 × 1.3 × 0.9 mm); 200 mW Pd; 90 Ω rd | Slightly higher power rating and lower dynamic resistance, but 0.3 mm taller profile may impact board clearance | Prefer when higher surge energy margin is needed and vertical space allows |
| MMSZ5231B | 5.1 V Zener, SOD-123 package (3.7 × 1.6 × 1.1 mm); 500 mW Pd; 17 Ω rd; RoHS-compliant | Larger footprint and higher power handling, but significantly lower rd improves clamping precision | Select when PCB real estate permits and tighter voltage regulation under surge is required |
Compared with BZX584-C5V1 and MMSZ5231B, the HZC5.1TRF-E offers the smallest footprint (SC-79), lowest profile (0.6 mm height), and best fit for ultra-compact designs where board area and component stacking height are constrained-without sacrificing ESD robustness or thermal reliability.
Availability
HZC5.1TRF-E is available at Aetrix Electronics and suitable for USB interface protection, microcontroller I/O clamping, and low-voltage power rail stabilization requiring stable component supply across production volumes and long-lifecycle programs.
Supply support for HZC5.1TRF-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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog and power devices, and advanced SoCs for industrial, automotive, and consumer markets.
The HZC Series belongs to Renesas' discrete protection portfolio, designed specifically for compact, high-reliability surge and ESD suppression in space-constrained electronic systems-emphasizing low-profile packaging, tight Zener tolerance, and repeatable clamping performance.
FAQ
What is the Zener voltage tolerance of HZC5.1TRF-E at 5 mA test current?
The HZC5.1TRF-E has a guaranteed Zener voltage range of 4.84 V to 5.37 V when tested at IZ = 5 mA and Ta = 25°C. This ±5.3% tolerance ensures predictable clamping behavior in overvoltage protection circuits without requiring post-manufacturing binning or calibration. The specification is verified per Renesas REJ03G1204-0200 Rev.2.00.
Does HZC5.1TRF-E support bidirectional ESD protection?
No-HZC5.1TRF-E is a unidirectional Zener diode configured for cathode-to-anode breakdown only. For bidirectional ESD protection, two HZC5.1TRF-E devices must be connected in series opposing configuration (anode-to-anode), or a dedicated bidirectional TVS like the RCLAMP0524P should be used. The HZC5.1TRF-E datasheet explicitly defines Pin 1 as cathode and Pin 2 as anode.
What is the maximum allowable ambient temperature for continuous operation of HZC5.1TRF-E?
The HZC5.1TRF-E can operate continuously at ambient temperatures up to +85°C when derated per the power dissipation curve in Figure 2 of the datasheet. At +85°C, its usable power dissipation drops to approximately 100 mW. Full 150 mW rating applies only at Ta = 25°C; exceeding this requires thermal analysis of PCB copper area and airflow.
Is HZC5.1TRF-E compliant with RoHS and lead-free assembly processes?
Yes-HZC5.1TRF-E is RoHS-compliant and qualified for lead-free reflow soldering per J-STD-020. Its UFP package uses matte tin plating and meets JEDEC MSL Level 1 (unlimited floor life at ≤30°C/85% RH). Renesas confirms compliance in environmental documentation referenced on www.renesas.com.
Can HZC5.1TRF-E replace a 5.1 V Zener diode in a voltage reference circuit?
Not recommended for precision voltage reference use. While HZC5.1TRF-E provides adequate regulation for surge suppression, its 130 Ω dynamic resistance and −0.02 %/°C temperature coefficient make it unsuitable for stable, low-drift reference applications. For reference duties, Renesas' RLZ series or dedicated shunt references like TL431 are better matched to HZC5.1TRF-E's electrical profile.
HZC5.1TRF-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:
- -
HZC5.1TRF-E FAQ
1.How can I place an order for HZC5.1TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZC5.1TRF-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 HZC5.1TRF-E reliable?
The price and inventory of HZC5.1TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZC5.1TRF-E is usually 5 days.
3.What payment methods are accepted for HZC5.1TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZC5.1TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZC5.1TRF-E?
HZC5.1TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZC5.1TRF-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 HZC5.1TRF-E?
For technical support, including HZC5.1TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZC5.1TRF-E requirements.
6.How does Aetrix verify that HZC5.1TRF-E is sourced from the original manufacturer or authorized distributors?
All HZC5.1TRF-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 HZC5.1TRF-E meets industry standards.
7.What is the process for return or replacement of HZC5.1TRF-E?
All HZC5.1TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZC5.1TRF-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 HZC5.1TRF-E part is unused and in its original packaging.
Return procedure for HZC5.1TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZC5.1TRF-E Tags
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