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Renesas HZU20B2JTRF-E
- Part No.:
- HZU20B2JTRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU20B2JTRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:15,472
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Product details
Overview
HZU20B2JTRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits, featuring a nominal Zener voltage of 20.21 V to 21.08 V at 5 mA test current, 50 Ω dynamic resistance, and 200 mW power dissipation in an ultra-small URP (SC-76A) surface-mount package.
For engineers reviewing the HZU20B2JTRF-E datasheet, HZU20B2JTRF-E pinout, HZU20B2JTRF-E application, or HZU20B2JTRF-E equivalent, this device serves as a compact, tape-and-reel delivered voltage reference for power supply regulation, overvoltage protection, and analog signal conditioning where tight tolerance and thermal stability are required.
Technical Context
The HZU20B2JTRF-E operates as a two-terminal shunt regulator with cathode-anode polarity, optimized for stable reverse-biased conduction at its specified Zener voltage range. Its electrical behavior is defined under pulsed test conditions (PW = 40 ms), minimizing self-heating effects during characterization.
It exhibits a negative temperature coefficient of approximately –0.04 %/°C near 20 V (per Fig.2), enabling predictable drift compensation in reference designs. The device is rated for junction temperatures up to 150 °C and storage from –55 °C to +150 °C, supporting industrial ambient operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.21 V to 21.08 V at IZ = 5 mA - defines precise clamping threshold for voltage reference and regulation |
| Dynamic Resistance (rd) | 50 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum continuous DC or pulsed power handling capability |
| Reverse Current (IR) | 2 μA max at VR = 15.0 V - ensures low leakage below breakdown, critical for high-impedance bias networks |
| Junction Temperature (Tj) | 150 °C maximum - constrains thermal design margin and PCB copper area requirements |
| Package | URP (SC-76A), 0.8 mm × 1.5 mm footprint - enables high-density SMT placement on space-constrained boards |
Pinout & Package
Ultra-small Resin Package (URP), also known as SC-76A, is a 2-pin surface-mount package with cathode marked by a dot or bar on the top surface. Dimensions: 0.8 mm (W) × 1.5 mm (L) × 0.9 mm (H) max; typical mass 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; carries reverse current during Zener conduction |
| 2 | Anode | Connected to circuit ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP (SC-76A) package | 0.8 mm × 1.5 mm footprint enables miniaturized voltage reference placement in portable and IoT devices |
| Taped and reel delivery (TRF) | 3,000 pcs/reel format supports automated SMT assembly without manual handling or orientation concerns |
| Grade B2 Zener tolerance | ±4.3% total variation (20.21–21.08 V) provides tighter regulation than standard-grade Zeners for mid-precision applications |
| Pulsed testing compliance | Characterized with 40 ms pulse width to ensure parameter validity under transient loading conditions |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 20 V reference for linear regulator feedback or ADC reference buffer in industrial sensor transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing fixed bias point for error amplifiers and precision comparators. Use Value: Enables ±1% system-level voltage accuracy with minimal board area and no external bias resistor network. |
Use Scenario: Protecting microcontroller I/O pins against ESD-induced transients exceeding 15 V in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting surge current away from sensitive inputs during transient events. Use Value: Limits peak voltage to ≤21.08 V with <2 μA leakage at 15 V, preserving signal integrity without loading normal operation. |
| Current Source Bias | Analog Signal Conditioning |
Use Scenario: Generating stable bias current for op-amp input stages in battery-powered medical instrumentation amplifiers. IC Role / Device Role / Timing Role: Fixed-voltage node driving constant-current source via series resistor in high-impedance bias networks. Use Value: Delivers repeatable 20.6 V reference with <50 Ω dynamic impedance, ensuring <0.1% current drift over temperature. |
Use Scenario: Level-shifting and clamping analog sensor outputs (e.g., thermocouple amplifiers) before ADC sampling in HVAC controllers. IC Role / Device Role / Timing Role: Precision clamping element limiting signal swing to prevent ADC saturation while maintaining linearity. Use Value: Maintains signal fidelity with 2 μA leakage at 15 V and 50 Ω dynamic resistance, minimizing distortion in 12-bit measurement paths. |
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 |
|---|---|---|---|
| BZX84-C20LT1G | 20 V nominal, ±5% tolerance, SOT-23 package (2.9 mm × 1.3 mm), 350 mW Pd | Larger footprint and higher power rating; less suitable for ultra-dense layouts | Select when higher power margin or legacy SOT-23 compatibility is required over size constraints |
| MMSZ5248BT1G | 20 V nominal, ±5% tolerance, SOD-123 package (2.7 mm × 1.4 mm), 500 mW Pd | Higher power rating and larger thermal mass; not tape-and-reel compatible with URP feeders | Choose for higher reliability in thermally demanding environments where 0.004 g mass and 0.8 mm width are non-critical |
Compared with BZX84-C20LT1G and MMSZ5248BT1G, the HZU20B2JTRF-E offers the smallest footprint (0.8 × 1.5 mm), lowest mass (0.004 g), and tightest grade-B2 tolerance (±4.3%)-making it optimal for space-constrained, high-volume SMT designs requiring consistent 20 V stabilization without layout rework.
Availability
HZU20B2JTRF-E is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical monitors, and automotive body electronics requiring stable component supply with guaranteed tape-and-reel delivery and full traceability.
Supply support for HZU20B2JTRF-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 Japan, specializing in microcontrollers, analog and power devices, and advanced SoCs for industrial, automotive, and infrastructure markets.
The HZU Series is part of Renesas' discrete Zener diode portfolio, engineered specifically for compact, high-stability voltage reference and clamping in space- and power-sensitive applications across consumer, industrial, and automotive electronics.
FAQ
What is the Zener voltage tolerance for HZU20B2JTRF-E?
The HZU20B2JTRF-E has a Zener voltage range of 20.21 V to 21.08 V at 5 mA test current, corresponding to Grade B2 tolerance (±4.3%). This specification is verified per the Renesas preliminary datasheet R07DS0423EJ1000 Rev.10.00, Page 3, and applies strictly under pulsed test conditions (PW = 40 ms). The HZU20B2JTRF-E delivers tighter regulation than standard-grade Zeners for mid-precision reference needs.
Is HZU20B2JTRF-E RoHS compliant?
Yes, the HZU20B2JTRF-E complies with the EU RoHS Directive, as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and meets all substance restrictions applicable to "Standard" quality grade products. Full material declarations are available upon request for HZU20B2JTRF-E.
What is the thermal derating behavior of HZU20B2JTRF-E above 25 °C?
The HZU20B2JTRF-E follows the derating curve in Figure 3 of the datasheet: power dissipation decreases linearly from 200 mW at 25 °C to zero at 150 °C. At 75 °C ambient, allowable Pd drops to ~133 mW; at 125 °C, it falls to ~33 mW. This behavior must be accounted for in thermal design-especially in enclosed enclosures or stacked PCBs-where the HZU20B2JTRF-E's small URP package limits heat spreading.
Can HZU20B2JTRF-E be used in place of a 20 V Zener in existing SOT-23 designs?
No-HZU20B2JTRF-E uses the URP (SC-76A) package (0.8 mm × 1.5 mm), which is physically incompatible with SOT-23 footprints (2.9 mm × 1.3 mm). While both are 2-pin surface-mount Zeners, the HZU20B2JTRF-E requires dedicated land pattern design. It is not a drop-in replacement; PCB layout modification is mandatory to accommodate its smaller dimensions and different terminal spacing.
What is the reverse leakage current specification for HZU20B2JTRF-E at 15 V?
The reverse leakage current (IR) for HZU20B2JTRF-E is specified as ≤2 μA maximum at VR = 15.0 V (Page 3, datasheet R07DS0423EJ1000 Rev.10.00). This low leakage ensures minimal parasitic loading in high-impedance reference divider networks and preserves accuracy in battery-operated systems where quiescent current matters. The value is measured under DC conditions and validated across production lots for HZU20B2JTRF-E.
HZU20B2JTRF-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:
- -
HZU20B2JTRF-E FAQ
1.How can I place an order for HZU20B2JTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU20B2JTRF-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 HZU20B2JTRF-E reliable?
The price and inventory of HZU20B2JTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU20B2JTRF-E is usually 5 days.
3.What payment methods are accepted for HZU20B2JTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU20B2JTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU20B2JTRF-E?
HZU20B2JTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU20B2JTRF-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 HZU20B2JTRF-E?
For technical support, including HZU20B2JTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU20B2JTRF-E requirements.
6.How does Aetrix verify that HZU20B2JTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU20B2JTRF-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 HZU20B2JTRF-E meets industry standards.
7.What is the process for return or replacement of HZU20B2JTRF-E?
All HZU20B2JTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU20B2JTRF-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 HZU20B2JTRF-E part is unused and in its original packaging.
Return procedure for HZU20B2JTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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