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Renesas HZK9BTR-S-E
- Part No.:
- HZK9BTR-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK9BTR-S-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
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Product details
Overview
HZK9BTR-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 8.3–9.1 V at 5 mA, with dynamic resistance ≤20 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 feedback paths of linear regulators.
For engineers reviewing the HZK9BTR-S-E datasheet, HZK9BTR-S-E pinout, HZK9BTR-S-E application, or HZK9BTR-S-E equivalent, key selection criteria include zener voltage tolerance (±5% Grade B), low leakage current (≤1 µA at VR = 5 V), thermal coefficient (≈+4.5 mV/°C), surface-mount LLD package compatibility, and qualification for industrial-grade applications per Renesas "Standard" quality grade.
Technical Context
The HZK9BTR-S-E employs a planar epitaxial junction structure optimized for stable reverse breakdown behavior under DC bias. Its zener voltage is specified at 5 mA test current with tight ±5% tolerance (Grade B), and it exhibits low dynamic impedance (≤20 Ω) ensuring minimal output variation under load transients.
Thermal performance is characterized by a positive temperature coefficient (~+4.5 mV/°C) and junction temperature limit of 175°C. The device is rated for 500 mW power dissipation on PCB, with derating starting above 25°C ambient - consistent with Renesas' LLD package thermal profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.3–9.1 V at IZ = 5 mA - defines regulated output level in shunt reference designs |
| Zener Impedance (rd) | ≤20 Ω at IZ = 5 mA - ensures <20 mV output shift per 1 mA load change |
| Reverse Leakage (IR) | ≤1 µA at VR = 5 V - minimizes quiescent current in battery-powered references |
| Power Dissipation (Pd) | 500 mW at Ta = 25°C - supports continuous operation in compact SMT layouts |
| Package | LLD (leadless, 2-terminal) - 1.4 mm Ø cathode/anode body, compatible with high-density reflow assembly |
| Temperature Coefficient | +4.5 mV/°C - enables predictable drift compensation in temperature-stable references |
| Junction Temperature (Tj) | 175°C max - allows operation in thermally constrained industrial enclosures |
Pinout & Package
Package: LLD - leadless, cylindrical glass-passivated silicon diode with axial polarity marking. Cathode identified by color band; anode is unmarked end. Mass: 0.027 g. Dimensions: φ1.4 ± 0.1 mm × 3.5 mm length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Regulated Output Node | Connected to reference node; carries reverse current during regulation; marked with color band |
| 2 (Anode) | Ground / Return Path | Biased at lower potential; completes shunt path to ground or common rail |
Key Features
| Feature | Design Value |
|---|---|
| Low Dynamic Impedance | ≤20 Ω enables <20 mV regulation error across 1 mA load steps in feedback networks |
| Grade B Voltage Tolerance | ±5% (8.3–9.1 V) supports tighter reference accuracy without external trimming |
| High-Temperature Operation | Rated to 175°C junction temperature - suitable for under-hood or enclosed industrial environments |
| LLD Surface-Mount Package | Compact 1.4 mm diameter enables placement in space-constrained PCBs and automated high-speed assembly |
| Low Reverse Leakage | ≤1 µA at 5 V reverse bias reduces standby current in always-on reference circuits |
Applications
| Voltage Reference for ADCs | Overvoltage Clamp in Power Rails |
|---|---|
Use Scenario: Provides stable 8.7 V reference for 12-bit SAR ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise input scaling threshold. Use Value: Low rd and tight VZ tolerance ensure <±1 LSB error contribution over temperature and line variations. |
Use Scenario: Protects 9 V logic rails from transient surges exceeding 10 V in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Fast-acting crowbar element clamping excess voltage before downstream IC damage. Use Value: 500 mW rating sustains 100 ms surge events; low leakage avoids false triggering during normal operation. |
| Feedback Element in Linear Regulators | Threshold Detector in Battery Monitoring |
Use Scenario: Sets output voltage of adjustable LDOs (e.g., μA78Lxx family) via resistor divider biasing. IC Role / Device Role / Timing Role: Precision voltage node defining regulation setpoint in closed-loop control. Use Value: Stable +4.5 mV/°C TC allows predictable compensation; Grade B tolerance eliminates need for calibration. |
Use Scenario: Triggers low-battery warning when Li-ion cell voltage drops below 8.5 V in portable medical devices. IC Role / Device Role / Timing Role: Analog comparator reference enabling discrete-state battery health indication. Use Value: ≤1 µA leakage preserves battery life over multi-year shelf life; 175°C rating supports sterilization cycles. |
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 |
|---|---|---|---|
| MMBZ5236B (ON Semiconductor) | Same 8.7 V nominal, SOT-23 package, 200 mW rating, higher rd (30 Ω) | Lower power handling limits use in sustained clamp or reference roles | Select when board space is constrained and thermal load is <200 mW |
| BZX84-C8V2 (Diodes Inc.) | 8.2 V nominal, ±5% tolerance, SOT-23, 300 mW, rd = 25 Ω | Lower VZ shifts regulation point; not interchangeable without circuit recalibration | Choose only if 8.2 V setpoint is acceptable and SOT-23 footprint is required |
Compared with MMBZ5236B and BZX84-C8V2, the HZK9BTR-S-E offers higher power margin (500 mW vs. ≤300 mW), lower dynamic impedance (≤20 Ω), and superior high-temperature capability (175°C vs. 150°C), making it preferred for industrial reference and robust clamping where thermal and stability margins are critical.
Availability
HZK9BTR-S-E is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection, and feedback network stabilization requiring stable component supply in industrial automation, test equipment, and embedded power management systems.
Supply support for HZK9BTR-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 leader delivering microcontrollers, analog, power, and timing solutions for industrial, automotive, and consumer applications.
The HZK Series is part of Renesas' legacy discrete portfolio, engineered specifically for precision voltage stabilization in industrial-grade power supplies and reference circuits - emphasizing reliability, thermal resilience, and tight parametric control.
FAQ
What is the exact zener voltage range for HZK9BTR-S-E?
The HZK9BTR-S-E has a guaranteed zener voltage range of 8.3 V to 9.1 V at 5 mA test current, corresponding to Grade B tolerance per the Renesas HZK Series datasheet Rev.3.00. This specification applies under DC conditions at 25°C ambient and is validated across production lots. The HZK9BTR-S-E maintains this range with predictable drift up to 175°C junction temperature.
Is HZK9BTR-S-E RoHS compliant?
Yes, the HZK9BTR-S-E conforms to the EU RoHS Directive (2011/65/EU) as confirmed by Renesas Electronics' environmental compliance documentation. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. The LLD package uses lead-free glass passivation and solderable terminations compatible with standard Pb-free reflow profiles.
What is the thermal resistance of HZK9BTR-S-E on a standard PCB?
Renesas does not publish a specific junction-to-board thermal resistance (θJB) for the HZK9BTR-S-E, but its absolute maximum ratings assume 500 mW dissipation on a standard 15 × 20 × 1.6 mm glass epoxy PCB. Derating begins linearly above 25°C ambient, reaching zero power at ~125°C ambient - implying effective θJA ≈ 250°C/W under those board conditions. The HZK9BTR-S-E must be mounted with adequate copper area for thermal relief in sustained 300+ mW operation.
Can HZK9BTR-S-E replace HZK9CTR-S-E in existing designs?
No - the HZK9BTR-S-E (Grade B, 8.3–9.1 V) and HZK9CTR-S-E (Grade C, 8.9–9.7 V) have non-overlapping zener voltage ranges. Substituting them would shift regulation by up to ±0.3 V, potentially violating system reference accuracy or clamp thresholds. The HZK9BTR-S-E must be used only where Grade B tolerance is specified; verification against schematic and firmware thresholds is required before replacement.
Does HZK9BTR-S-E support automotive AEC-Q200 qualification?
No - the HZK9BTR-S-E is classified under Renesas' "Standard" quality grade, intended for industrial, office, and consumer applications per document REJ03G0018-0300Z. It is not AEC-Q200 stress-tested or certified for automotive use. For automotive-grade Zener diodes, Renesas offers separate qualified parts such as the RZM series; the HZK9BTR-S-E should not be deployed in vehicle subsystems without formal qualification and validation.
HZK9BTR-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:
- -
HZK9BTR-S-E FAQ
1.How can I place an order for HZK9BTR-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK9BTR-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 HZK9BTR-S-E reliable?
The price and inventory of HZK9BTR-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 HZK9BTR-S-E is usually 5 days.
3.What payment methods are accepted for HZK9BTR-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK9BTR-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK9BTR-S-E?
HZK9BTR-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK9BTR-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 HZK9BTR-S-E?
For technical support, including HZK9BTR-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK9BTR-S-E requirements.
6.How does Aetrix verify that HZK9BTR-S-E is sourced from the original manufacturer or authorized distributors?
All HZK9BTR-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 HZK9BTR-S-E meets industry standards.
7.What is the process for return or replacement of HZK9BTR-S-E?
All HZK9BTR-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK9BTR-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 HZK9BTR-S-E part is unused and in its original packaging.
Return procedure for HZK9BTR-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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