Renesas HZU5.1GTRF-E
- Part No.:
- HZU5.1GTRF-E
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
HZU5.1GTRF-E.pdf
- Description:
- TRANS VOLTAGE SUPPRESSOR DIODE
- Quantity:
- Payment:

- Shipping:

Inventory:15,000
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Product details
Overview
HZU5.1GTRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and power-supply reference circuits. It delivers a nominal zener voltage of 5.14 V to 5.37 V at 5 mA, with dynamic resistance of 130 Ω, maximum reverse current of 5 µA at 1.5 V, and 200 mW power dissipation in an ultra-small URP (SC-76A) surface-mount package.
For engineers reviewing the HZU5.1GTRF-E datasheet, HZU5.1GTRF-E pinout, HZU5.1GTRF-E application, or HZU5.1GTRF-E equivalent, key selection criteria include its tight zener voltage tolerance (±2.3% typical), low temperature coefficient (≈−0.02 %/°C near 5.1 V), suitability for space-constrained PCB layouts, and compatibility with automated SMT assembly via 3,000-piece tape-and-reel packaging.
Technical Context
The HZU5.1GTRF-E operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current when input exceeds its specified zener breakdown range. Its planar junction construction ensures consistent breakdown characteristics and low leakage across temperature.
It is rated for junction temperatures up to 150°C and storage from –55°C to +150°C, with thermal derating defined in Fig. 3 (Pd vs. Ta). The device uses pulse testing (40 ms PW) for electrical characterization, ensuring reliable specification under transient conditions typical in biasing and sensing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.14 V to 5.37 V at IZ = 5 mA - defines stable regulation point for 5 V-class reference designs |
| Dynamic Resistance (rd) | 130 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | 5 µA max at VR = 1.5 V - ensures minimal standby leakage in battery-powered circuits |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal derating |
| Junction Temperature (Tj) | 150°C max - defines upper thermal limit for reliability in enclosed or high-ambient environments |
| Package | URP (SC-76A), 2-pin surface-mount - enables 0.8 mm × 1.5 mm board footprint and reflow compatibility |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 0.8 mm × 1.5 mm × 0.45 mm (max height), mass 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where zener breakdown occurs |
| 2 | Anode | Connected to circuit ground or lower potential; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | 0.8 mm × 1.5 mm footprint supports high-density PCB layouts and miniaturized consumer electronics |
| Taped delivery (TRF) | 3,000 pcs/reel format enables seamless integration into automated SMT pick-and-place lines |
| Low dynamic resistance | 130 Ω max ensures stable regulation under varying load currents in feedback and reference circuits |
| Controlled zener voltage grade (B3) | 5.14–5.37 V tolerance band provides predictable performance without post-manufacture sorting |
| Low temperature coefficient | ≈−0.02 %/°C near 5.1 V minimizes drift in precision analog sensor biasing and ADC reference applications |
Applications
| Portable Sensor Biasing | Low-Power LDO Reference |
|---|---|
Use Scenario: Providing stable bias voltage to MEMS accelerometers and analog front-ends in wearables and IoT edge nodes. IC Role / Device Role / Timing Role: Shunt voltage reference supplying fixed 5.1 V to sensor supply rails and signal conditioning amplifiers. Use Value: Low 5 µA reverse leakage preserves battery life; tight 5.14–5.37 V tolerance ensures consistent sensor full-scale output calibration. |
Use Scenario: Setting precise feedback voltage for adjustable low-dropout regulators in medical monitoring devices. IC Role / Device Role / Timing Role: Zener-based reference element in the error amplifier feedback divider network. Use Value: 130 Ω dynamic resistance limits output voltage shift under load transients; URP package fits compact PCBs with strict EMI shielding constraints. |
| USB-C Power Negotiation Circuitry | Industrial PLC Input Protection |
Use Scenario: Clamping and stabilizing CC line voltage during USB PD communication handshake sequences. IC Role / Device Role / Timing Role: Precision clamp regulating CC line to ~5.1 V while tolerating brief 20 V transients. Use Value: 200 mW rating handles short-duration PD negotiation pulses; B3 grade ensures consistent clamping threshold across production lots. |
Use Scenario: Protecting 24 V digital input channels from overvoltage and providing stable logic-level translation. IC Role / Device Role / Timing Role: Shunt regulator establishing 5.1 V reference for optocoupler LED drive and level-shifting circuitry. Use Value: 150°C junction rating supports operation in hot industrial enclosures; robust planar junction withstands repeated surge events per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage stabilization applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C5V1 (Nexperia) | Same 5.1 V nominal, ±5% tolerance (vs. HZU5.1GTRF-E's ±2.3%), 350 mW Pd, SOD-323 package (1.7 × 1.3 mm) | Larger footprint; higher power allows higher current but less suitable for ultra-dense layouts | Choose for higher power margin where board area permits; not drop-in due to larger package and looser tolerance |
| MMSZ5231B (ON Semiconductor) | 5.1 V nominal, ±5% tolerance, 500 mW Pd, SOD-123 package (3.7 × 1.6 mm), rd = 17 Ω | Lower dynamic resistance improves regulation but significantly larger size and higher leakage (10 µA @ 1 V) | Prefer when regulation stability outweighs size constraints; requires layout revision due to different footprint and polarity marking |
Compared with BZX584-C5V1 and MMSZ5231B, the HZU5.1GTRF-E offers the smallest PCB footprint and tightest voltage tolerance in its class, making it optimal for miniaturized, battery-sensitive designs where regulation accuracy and space are prioritized over raw power handling.
Availability
HZU5.1GTRF-E is available at Aetrix Electronics and suitable for portable sensor biasing, low-power LDO reference design, and USB-C power negotiation circuits requiring stable component supply, consistent parametric performance, and RoHS-compliant SMT packaging.
Supply support for HZU5.1GTRF-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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
The HZU Series belongs to Renesas' discrete voltage reference portfolio, engineered specifically for high-accuracy, low-leakage stabilization in space-constrained, low-power analog subsystems.
FAQ
What is the zener voltage tolerance of the HZU5.1GTRF-E?
The HZU5.1GTRF-E has a zener voltage range of 5.14 V to 5.37 V at 5 mA test current, corresponding to a ±2.3% tolerance around the nominal 5.1 V rating. This B3-grade specification is confirmed in the Electrical Characteristics table on page 2 of the R07DS0423EJ1000 datasheet and applies directly to the HZU5.1GTRF-E part number.
Is the HZU5.1GTRF-E suitable for automotive applications?
The HZU5.1GTRF-E is classified as a Standard-grade Renesas product, intended for computers, office equipment, communications gear, and industrial robots-not automotive or safety-critical systems. Its datasheet does not specify AEC-Q200 qualification, and Renesas explicitly restricts automotive use to High Quality or Specific grade parts, which the HZU5.1GTRF-E is not designated as.
What is the thermal derating behavior of the HZU5.1GTRF-E?
The HZU5.1GTRF-E follows the derating curve in Fig. 3 (page 5), where power dissipation decreases linearly above 25°C ambient: Pd = 200 mW − (Ta − 25) × 2.5 mW/°C, reaching zero at approximately 105°C. This slope is derived from the graph's 200 mW intercept and 105°C cutoff, and applies to the URP package under still-air conditions.
Does the HZU5.1GTRF-E have a specified temperature coefficient?
Yes-the HZU5.1GTRF-E exhibits a zener voltage temperature coefficient of approximately −0.02 %/°C near 5.1 V, as shown in Fig. 2 (page 5) of the datasheet. This value is interpolated from the γZ vs. VZ plot and reflects typical behavior for 5.1 V Zeners in the HZU series, confirmed by Renesas' characterization data.
What does the "TRF" suffix indicate in HZU5.1GTRF-E?
The "TRF" suffix denotes tape-and-reel packaging: 3,000 units per reel, using the STSP0002ZA-A carrier tape format. This is explicitly defined in the Ordering Information table on page 1 and confirms compatibility with standard SMT placement equipment-no manual handling or bulk feeding required for the HZU5.1GTRF-E.
HZU5.1GTRF-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZU5.1GTRF-E FAQ
1.How can I place an order for HZU5.1GTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU5.1GTRF-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 HZU5.1GTRF-E reliable?
The price and inventory of HZU5.1GTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU5.1GTRF-E is usually 5 days.
3.What payment methods are accepted for HZU5.1GTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU5.1GTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU5.1GTRF-E?
HZU5.1GTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU5.1GTRF-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 HZU5.1GTRF-E?
For technical support, including HZU5.1GTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU5.1GTRF-E requirements.
6.How does Aetrix verify that HZU5.1GTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU5.1GTRF-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 HZU5.1GTRF-E meets industry standards.
7.What is the process for return or replacement of HZU5.1GTRF-E?
All HZU5.1GTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU5.1GTRF-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 HZU5.1GTRF-E part is unused and in its original packaging.
Return procedure for HZU5.1GTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU5.1GTRF-E Tags

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ESD9B5.0ST5G
onsemi

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DESD3V3E1BL-7B
Diodes Incorporated

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ESD5Z3.3T1G
onsemi

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D5V0H1B2LP-7B
Diodes Incorporated

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D5V0P1B2LP-7B
Diodes Incorporated

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DESD5V0U1BA-7
Diodes Incorporated

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ESD5Z5.0T1G
onsemi

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DESD5V0U1BB-7
Diodes Incorporated

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D12V0L1B2LP-7B
Diodes Incorporated

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PESD2V0Y1BSFYL
Nexperia USA Inc.

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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage

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D5V0L1B2WS-7
Diodes Incorporated
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