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Renesas HZK4BTR-S-E
- Part No.:
- HZK4BTR-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK4BTR-S-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:37,500
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Product details
Overview
HZK4BTR-S-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power supply circuits. It delivers a nominal zener voltage of 3.7–4.1 V at 5 mA, with dynamic resistance ≤100 Ω, maximum power dissipation of 500 mW, and operates within a junction temperature range of –55°C to +175°C. It is used in precision reference circuits for industrial sensors and analog front-ends.
For engineers reviewing the HZK4BTR-S-E datasheet, HZK4BTR-S-E pinout, HZK4BTR-S-E application, or HZK4BTR-S-E equivalent, key selection criteria include zener voltage tolerance (Grade B), low leakage current (≤5 µA at 0.5 V), thermal coefficient behavior near 4 V, and LLD surface-mount package compatibility with high-density PCB layouts.
Technical Context
The HZK4BTR-S-E employs a silicon epitaxial planar structure optimized for stable reverse-breakdown characteristics under DC bias. Its zener voltage is specified at 5 mA test current with tight ±0.2 V tolerance (Grade B), and it exhibits low dynamic impedance (≤100 Ω) ensuring minimal output variation under load transients.
Designed for stabilized power supply applications, it supports operation up to 175°C junction temperature and maintains specified electrical performance across –55°C to +175°C storage range. The device is not radiation-hardened and is rated for Standard quality grade per Renesas classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.7–4.1 V at IZ = 5 mA - defines precise regulation point for low-voltage reference rails |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - ensures minimal output voltage shift under current load changes |
| Maximum Power Dissipation (Pd) | 500 mW at Ta = 25°C - sets thermal derating limit for PCB trace width and copper area planning |
| Reverse Leakage Current (IR) | ≤5 µA at VR = 0.5 V - guarantees low quiescent current in standby or battery-backed circuits |
| Junction Temperature (Tj) | –55°C to +175°C - enables use in extended-temperature industrial environments without derating |
| Zener Voltage Temp. Coefficient | ≈+2.5 mV/°C near 4 V - allows predictable drift compensation in temperature-sensitive references |
Pinout & Package
Package: LLD (Leadless Low-profile Diode), JEITA-compliant surface-mount package with 0.027 g mass and 1.4 mm diameter cathode-end marking. Dimensions: φ1.4 ±0.1 mm body, 3.5 mm total length, 0.35 mm typ lead spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode band end) | Cathode | Connected to regulated output node; polarity marking aligns with standard diode symbol orientation on PCB silkscreen |
| 2 (Opposite end) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω at 5 mA - improves line and load regulation in feedback paths of LDOs and op-amp references |
| Wide zener voltage spectrum | 1.9–38 V across HZK family - enables single-supplier sourcing for multi-rail systems requiring discrete references |
| LLD surface-mount package | 0.027 g mass, φ1.4 mm body - supports automated high-speed placement and high-density board layouts |
| Low leakage current | ≤5 µA at 0.5 V - minimizes error contribution in high-impedance voltage divider or sensor bias networks |
Applications
| Industrial Sensor Reference | Low-Power Microcontroller Reset Circuit |
|---|---|
Use Scenario: Precision analog signal conditioning in factory-floor temperature and pressure transmitters. IC Role / Device Role / Timing Role: Zener diode provides stable 4.0 V reference for ADC input scaling and DAC output calibration. Use Value: Tight 3.7–4.1 V tolerance and low 100 Ω dynamic resistance ensure <±0.5% full-scale error over temperature and load. |
Use Scenario: Brown-out detection and reset voltage threshold setting in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Acts as voltage threshold element in RC-based reset generator circuit feeding microcontroller reset pin. Use Value: ≤5 µA leakage preserves battery life; 175°C max junction temperature supports operation in enclosed enclosures. |
| Linear Regulator Feedback Divider | Overvoltage Clamp in Signal Path |
Use Scenario: Adjustable output configuration of low-dropout linear regulators in medical diagnostic equipment. IC Role / Device Role / Timing Role: Sets regulated output voltage via resistor divider network tied to regulator feedback pin. Use Value: Stable 4.0 V zener point enables accurate 5.0 V or 3.3 V outputs with <1% tolerance across production lots. |
Use Scenario: Protection of sensitive analog inputs (e.g., op-amp inverting terminals) against ESD-induced transients. IC Role / Device Role / Timing Role: Shunts excess voltage above 4.1 V to ground during fast-rising overvoltage events. Use Value: Fast response due to low junction capacitance (<2 pF typical) and 500 mW surge capability limits voltage overshoot to <4.5 V. |
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 |
|---|---|---|---|
| BZX55C3V9 (ON Semiconductor) | 3.9 V nominal, ±5% tolerance (±0.2 V), 500 mW, DO-35 package | Through-hole mounting; higher mechanical stress sensitivity; wider VZ tolerance | Choose for legacy through-hole designs where board rework is impractical and ±5% regulation suffices. |
| MMSZ4685 (Diodes Inc.) | 3.9 V nominal, ±5%, 500 mW, SOD-123 package, 100 Ω rd | SOD-123 footprint differs from LLD; slightly larger body (1.8 × 3.6 mm vs. φ1.4 mm); same thermal rating | Choose when SOD-123 is already standardized in your assembly process and 3.9 V center-point is acceptable. |
Compared with BZX55C3V9 and MMSZ4685, the HZK4BTR-S-E offers tighter Grade B voltage tolerance (±0.2 V), LLD package for ultra-compact placement, and documented low-leakage performance critical for high-impedance reference nodes - making it preferable for new surface-mount industrial designs demanding precision and density.
Availability
HZK4BTR-S-E is available at Aetrix Electronics and suitable for industrial sensor reference, low-power microcontroller reset circuit, and linear regulator feedback divider applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HZK4BTR-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 global semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZK Series is part of Renesas' discrete diode product line, engineered specifically for stable voltage reference and regulation in cost-sensitive, space-constrained industrial power supplies and analog signal chains.
FAQ
What is the exact zener voltage range for HZK4BTR-S-E?
The HZK4BTR-S-E has a guaranteed zener voltage range of 3.7 V to 4.1 V at a test current of 5 mA, corresponding to Grade B tolerance per the Renesas HZK Series datasheet Rev.3.00. This specification is measured under DC conditions at Ta = 25°C and is valid for the entire production lot without binning. The HZK4BTR-S-E does not support adjustable or programmable voltage settings.
Is HZK4BTR-S-E compatible with lead-free reflow soldering processes?
Yes, the HZK4BTR-S-E is qualified for lead-free reflow soldering per J-STD-020. Its LLD package withstands peak temperatures up to 260°C for 10 seconds, consistent with standard Pb-free profile requirements. The device carries RoHS compliance certification, and no special pre-bake or moisture sensitivity handling is required prior to assembly.
Does HZK4BTR-S-E have a specified junction capacitance value?
No junction capacitance value is published in the official Renesas HZK Series datasheet Rev.3.00 for HZK4BTR-S-E. While typical small-signal Zener diodes in this class exhibit <2 pF at 0 V bias, Renesas does not specify or guarantee Cj for the HZK4BTR-S-E. For capacitance-critical applications such as RF clamping, consult Renesas directly or consider characterized alternatives like the MMBZ5225B.
What is the meaning of "TR-S-E" in HZK4BTR-S-E?
In the Renesas ordering code HZK4BTR-S-E, "TR" denotes tape-and-reel packaging (standard for automated placement), "S" indicates standard-grade reliability (Renesas Standard quality level), and "E" signifies RoHS-compliant, halogen-free construction. This suffix confirms the part meets EU RoHS Directive 2011/65/EU and is suitable for environmentally regulated industrial deployments.
Can HZK4BTR-S-E be used in automotive applications?
No - the HZK4BTR-S-E is classified as a Standard quality grade device per Renesas documentation and is explicitly intended for computers, office equipment, communications gear, and industrial robots. It is not qualified for automotive use (e.g., AEC-Q101), nor approved for transportation equipment or safety-critical systems. For automotive-grade Zeners, Renesas offers separate AEC-Q101-qualified series such as the RZM series.
HZK4BTR-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:
- -
HZK4BTR-S-E FAQ
1.How can I place an order for HZK4BTR-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK4BTR-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 HZK4BTR-S-E reliable?
The price and inventory of HZK4BTR-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 HZK4BTR-S-E is usually 5 days.
3.What payment methods are accepted for HZK4BTR-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK4BTR-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK4BTR-S-E?
HZK4BTR-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK4BTR-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 HZK4BTR-S-E?
For technical support, including HZK4BTR-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK4BTR-S-E requirements.
6.How does Aetrix verify that HZK4BTR-S-E is sourced from the original manufacturer or authorized distributors?
All HZK4BTR-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 HZK4BTR-S-E meets industry standards.
7.What is the process for return or replacement of HZK4BTR-S-E?
All HZK4BTR-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK4BTR-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 HZK4BTR-S-E part is unused and in its original packaging.
Return procedure for HZK4BTR-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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