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Renesas HZK5BTR-S-E
- Part No.:
- HZK5BTR-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK5BTR-S-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:15,505
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Product details
Overview
HZK5BTR-S-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power DC supply rails. It delivers a nominal zener voltage of 4.6–5.0 V at 5 mA, with dynamic resistance ≤100 Ω, maximum power dissipation of 500 mW, and operates within –55°C to +175°C storage temperature range. It is used in precision reference circuits and overvoltage protection in consumer-grade power supplies.
For engineers reviewing the HZK5BTR-S-E datasheet, HZK5BTR-S-E pinout, HZK5BTR-S-E application, or HZK5BTR-S-E equivalent, key selection criteria include its 500 mW LLD package power rating, ±5% zener voltage tolerance (Grade B), low leakage current (<5 µA at 0.5 V), and suitability for high-density surface-mount designs requiring stable low-voltage references.
Technical Context
The HZK5BTR-S-E employs a silicon epitaxial planar junction structure optimized for stable reverse-breakdown behavior under DC bias. Its zener voltage is specified at 5 mA test current with tight grading (Grade B: 4.6–5.0 V), and exhibits a temperature coefficient of approximately +2.0 mV/°C near 5 V, as confirmed by Figure 2 in the official datasheet.
It is rated for 175°C maximum junction temperature and features low dynamic impedance (≤100 Ω at 5 mA), enabling effective ripple suppression in linear regulator feedback paths and low-noise reference generation. The device is not radiation-hardened and is classified as "Standard" quality grade per Renesas documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.6–5.0 V at IZ = 5 mA - defines regulated output level in shunt reference applications |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - determines load regulation sensitivity and ripple rejection capability |
| Power Dissipation (Pd) | 500 mW - sets maximum continuous DC power handling on standard PCB mounting |
| Reverse Leakage Current (IR) | ≤5 µA at VR = 0.5 V - ensures minimal quiescent current in standby or low-power modes |
| Junction Temperature (Tj) | 175°C max - supports operation in thermally constrained industrial or automotive under-hood environments |
| Package Type | LLD - ultra-compact leadless surface-mount package (1.4 mm Ø) for high-density PCB layouts |
Pinout & Package
The HZK5BTR-S-E is housed in an LLD (leadless diode) package: cylindrical, 1.4 ± 0.1 mm diameter, 0.35 mm typical height, mass ≈ 0.027 g. It has two terminals: Cathode (marked with color band) and Anode (unmarked end).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener breakdown terminal | Connected to regulated voltage node; reverse-biased during normal operation |
| Anode (unmarked end) | Reference/ground return | Typically tied to system ground or lower-potential rail in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω enables stable regulation under varying load currents up to 5 mA |
| Wide zener voltage spectrum | Part of HZK Series spanning 1.9–38 V, allowing standardized design reuse across multiple voltage rails |
| LLD surface-mount package | 1.4 mm diameter footprint supports automated high-speed placement and compact board area usage |
| High thermal endurance | 175°C max junction temperature allows deployment in elevated ambient environments without derating |
Applications
| USB Peripheral Power Regulation | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Stabilizing 5 V rail for USB-powered sensors and interface ICs where input varies ±10%. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 4.8 V threshold for LDO enable or supervisor IC input. Use Value: Maintains reset assertion accuracy within ±2% over temperature due to low rd and predictable VZ drift. | Use Scenario: Generating clean, noise-immune reset signal for 3.3 V microcontrollers during power-up and brownout. IC Role / Device Role / Timing Role: Zener-clamped reference feeding RC delay network into dedicated reset supervisor IC. Use Value: Ensures reset pulse width stability across –40°C to +85°C via Grade B's tight VZ tolerance and low leakage. |
| Industrial Sensor Signal Conditioning | Consumer Audio Bias Supply |
Use Scenario: Providing stable 4.8 V bias for op-amp instrumentation amplifiers in 4–20 mA loop transmitters. IC Role / Device Role / Timing Role: Low-drift voltage reference source for gain-setting resistors and ADC reference dividers. Use Value: Reduces offset drift contribution to <15 µV/°C through matched thermal coefficient with adjacent passive components. | Use Scenario: Generating quiet 4.8 V bias for headphone amplifier stages in portable Bluetooth speakers. IC Role / Device Role / Timing Role: Low-noise shunt regulator filtering switching regulator ripple before analog audio path. Use Value: Achieves >60 dB PSRR at 100 kHz due to sub-100 Ω rd, minimizing audible switching artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V1 (ON Semiconductor) | 5.1 V nominal, ±5% tolerance, 500 mW DO-35 package, rd ≤ 60 Ω | Through-hole assembly only; higher thermal resistance than LLD | Preferred when legacy through-hole layout or higher surge robustness is required |
| MMSZ5225B (Vishay) | 5.1 V nominal, ±5% tolerance, 500 mW SOD-123 package, rd ≤ 170 Ω | SOD-123 footprint larger than LLD; slightly higher dynamic impedance | Selected when SOD-123 is already standardized in production and 5.1 V is acceptable |
Compared with HZK5BTR-S-E, the BZX55C5V1 offers tighter dynamic impedance but requires PCB rework for through-hole mounting, while the MMSZ5225B provides compatible SMT fit with marginally degraded regulation accuracy due to higher rd.
Availability
HZK5BTR-S-E is available at Aetrix Electronics and suitable for USB peripheral power regulation, microcontroller reset circuits, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for HZK5BTR-S-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 industrial, automotive, and consumer markets.
The HZK Series was developed by Renesas Electronics as a family of general-purpose silicon Zener diodes targeting stabilized DC power supply applications in standard-grade equipment, emphasizing reliability, tight voltage grading, and high-density packaging.
FAQ
What is the exact zener voltage range for HZK5BTR-S-E?
The HZK5BTR-S-E has a guaranteed zener voltage range of 4.6 V to 5.0 V when tested at 5 mA DC current, corresponding to Grade B specification per the Renesas HZK Series datasheet Rev.3.00. This tolerance band ensures consistent performance in shunt reference designs where ±2% regulation accuracy is required.
Is HZK5BTR-S-E RoHS compliant?
Yes, HZK5BTR-S-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-grade semiconductor products.
What is the thermal resistance of HZK5BTR-S-E on a standard PCB?
Renesas does not publish a specific junction-to-ambient thermal resistance (RθJA) value for HZK5BTR-S-E in the HZK Series datasheet. However, Figure 3 shows power derating versus ambient temperature, indicating full 500 mW operation up to 50°C ambient on a 15 × 20 × 1.6 mm glass epoxy PCB - implying RθJA ≈ 100°C/W under those conditions.
Can HZK5BTR-S-E be used in automotive applications?
HZK5BTR-S-E is classified as a "Standard" quality grade device per Renesas documentation and is intended for applications such as office equipment, consumer electronics, and industrial robots - not for automotive use. For automotive-grade Zener diodes, Renesas offers separate AEC-Q200 qualified parts like the RZM series, which undergo additional stress testing and screening.
What does the "TR-S-E" suffix in HZK5BTR-S-E indicate?
The "TR-S-E" suffix denotes tape-and-reel packaging (TR), standard-grade reliability (S), and RoHS-compliant lead-free finish (E). This matches Renesas' standard ordering code convention for the HZK Series, confirming the part is supplied in 7-inch reels with 3,000 units per reel and meets JEDEC J-STD-020 moisture sensitivity level 1 requirements.
HZK5BTR-S-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:
- -
HZK5BTR-S-E FAQ
1.How can I place an order for HZK5BTR-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK5BTR-S-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 HZK5BTR-S-E reliable?
The price and inventory of HZK5BTR-S-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK5BTR-S-E is usually 5 days.
3.What payment methods are accepted for HZK5BTR-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK5BTR-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK5BTR-S-E?
HZK5BTR-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK5BTR-S-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 HZK5BTR-S-E?
For technical support, including HZK5BTR-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK5BTR-S-E requirements.
6.How does Aetrix verify that HZK5BTR-S-E is sourced from the original manufacturer or authorized distributors?
All HZK5BTR-S-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 HZK5BTR-S-E meets industry standards.
7.What is the process for return or replacement of HZK5BTR-S-E?
All HZK5BTR-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK5BTR-S-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 HZK5BTR-S-E part is unused and in its original packaging.
Return procedure for HZK5BTR-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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