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Renesas HZS22-2TD-E
- Part No.:
- HZS22-2TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS22-2TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:90,000
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Product details
Overview
HZS22-2TD-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies. It delivers a nominal zener voltage of 22.65 V (typical, mid-grade -2), with 17.0 Ω dynamic resistance at 2 mA test current, 400 mW power dissipation, and operates across −55°C to +175°C storage temperature range - deployed in industrial control power rails and sensor biasing circuits.
For engineers reviewing the HZS22-2TD-E datasheet, HZS22-2TD-E pinout, HZS22-2TD-E application, or HZS22-2TD-E equivalent, key selection criteria include verified zener voltage tolerance (±0.65 V), low leakage (<1 µA at VR = 17.6 V), thermal coefficient behavior (−0.04 %/°C), MHD package compatibility with 5 mm-pitch automated insertion, and compliance with Renesas Standard quality grade for industrial equipment.
Technical Context
The HZS22-2TD-E uses a silicon planar junction structure optimized for stable reverse-breakdown operation under DC bias. Its zener voltage is specified at IZ = 2 mA, with dynamic resistance measured at the same condition, and exhibits a negative temperature coefficient of −0.04 %/°C - indicating decreasing VZ with rising temperature in its operating range.
This device functions exclusively as a two-terminal shunt voltage reference, requiring external series current limiting. It does not integrate transient suppression, temperature compensation circuitry, or active regulation - relying on passive thermal design and proper heatsinking within the MHD package's 400 mW Pd limit at Ta = 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.3–23.3 V at IZ = 2 mA - defines regulated output voltage window for supply rail clamping or reference generation |
| Dynamic Resistance (rd) | 17.0 Ω max at IZ = 2 mA - determines load regulation sensitivity and ripple rejection capability |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets maximum continuous DC power handling before thermal derating |
| Reverse Leakage (IR) | ≤1 µA at VR = 17.6 V - ensures minimal quiescent current draw in standby or low-current bias applications |
| Temperature Coefficient (γZ) | −0.04 %/°C - quantifies VZ drift over temperature; enables predictable error budgeting in wide-temperature designs |
| Junction Temperature (Tj) | 200°C max - defines absolute thermal limit for reliability; requires PCB copper area or ambient control to maintain |
| Package | MHD (JEITA GRZZ0002ZC-A) - 2-pin axial leaded package with 5 mm pitch, compatible with high-speed automatic insertion |
Pinout & Package
MHD package: axial-leaded, epoxy-molded, cathode band marked on body. Dimensions: L = 26.0 mm (length), φD = 2.0 mm (diameter), E = 2.4 mm (lead spacing), mass ≈ 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to higher potential node; reverse-biased terminal where regulated voltage appears relative to anode |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower potential; current flows from cathode to anode during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 17.0 Ω max enables tight voltage regulation under varying load currents in feedback or reference paths |
| Wide zener voltage range coverage | 22.3–23.3 V span supports precise matching to 24 V system tolerances without external trimming |
| High-temperature operation | Rated up to Tj = 200°C allows use in thermally demanding environments like motor drive power stages |
| Automated assembly compatibility | MHD package with 5 mm pitch meets IPC standards for high-speed pick-and-place and wave soldering |
| Low leakage performance | ≤1 µA IR at VR = 17.6 V minimizes standby power loss in battery-backed or energy-sensitive circuits |
Applications
| Industrial Power Monitoring | Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring 24 V DC bus voltage in PLC backplanes using resistive divider + comparator. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable threshold for overvoltage detection. Use Value: Tight 22.3–23.3 V VZ window ensures accurate trip point alignment with 24 V ±5% spec without calibration. |
Use Scenario: Biasing bridge-based pressure sensors in HVAC transmitters. IC Role / Device Role / Timing Role: Precision excitation reference for Wheatstone bridge, replacing less stable IC references. Use Value: −0.04 %/°C γZ reduces temperature-induced offset drift vs. generic Zeners, improving long-term sensor accuracy. |
| Programmable Logic Supply Clamp | Embedded Microcontroller Reset Circuit |
Use Scenario: Clamping FPGA I/O bank supply (VCCIO) to prevent overvoltage during hot-swap events. IC Role / Device Role / Timing Role: Passive overvoltage protection element absorbing transient energy via controlled breakdown. Use Value: 400 mW Pd rating sustains short-duration surges without degradation, extending board-level surge immunity. |
Use Scenario: Generating clean reset signal for ARM Cortex-M microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Stable voltage reference feeding comparator input in discrete reset generator circuits. Use Value: Low 1 µA IR ensures negligible current draw during deep sleep modes, preserving battery life in portable devices. |
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 |
|---|---|---|---|
| 1N4747A (ON Semiconductor) | VZ = 20 V ±5%, rd = 23 Ω, Pd = 1 W, DO-41 package | Higher power, looser tolerance, larger footprint - suited for higher-energy clamping | Select when >400 mW surge absorption is required and 20 V regulation suffices |
| BZX55C22 (Vishay) | VZ = 22 V ±5%, rd = 25 Ω, Pd = 500 mW, DO-35 package | Same nominal voltage but wider tolerance, higher rd, different thermal profile | Choose for legacy DO-35 layouts where MHD insertion compatibility is not needed |
Compared with 1N4747A and BZX55C22, the HZS22-2TD-E offers tighter VZ tolerance (±0.65 V vs. ±5%), lower dynamic resistance (17.0 Ω), and MHD packaging optimized for automated manufacturing - making it preferable for space-constrained, high-volume industrial power rails requiring repeatable regulation.
Availability
HZS22-2TD-E is available at Aetrix Electronics and suitable for industrial control systems, sensor signal conditioning modules, and embedded power management circuits requiring stable component supply, consistent parametric performance, and long-term manufacturability support.
Supply support for HZS22-2TD-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 HZS Series belongs to Renesas' legacy silicon planar Zener diode product line, engineered specifically for cost-effective, reliable voltage stabilization in industrial-grade power supplies and reference circuits - emphasizing manufacturability, thermal robustness, and parametric consistency.
FAQ
What is the exact zener voltage range for HZS22-2TD-E?
The HZS22-2TD-E has a guaranteed zener voltage range of 22.3 V to 23.3 V when tested at IZ = 2 mA and Ta = 25°C. This ±0.65 V tolerance reflects the "-2" grade designation in the part number and is tighter than standard ±5% Zener diodes, enabling precise voltage reference applications without trimming. The HZS22-2TD-E achieves this stability via Renesas' silicon planar process and rigorous binning.
Is HZS22-2TD-E RoHS compliant?
Yes, the HZS22-2TD-E complies with the EU RoHS Directive, as confirmed by Renesas Electronics' environmental compliance documentation. It contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits. Renesas confirms RoHS status in its official product change notices and material declarations for the HZS22-2TD-E.
What is the maximum reverse leakage current for HZS22-2TD-E?
The maximum reverse leakage current (IR) for HZS22-2TD-E is 1 µA when tested at VR = 17.6 V and Ta = 25°C. This low leakage ensures minimal parasitic current draw in high-impedance reference or bias networks. The HZS22-2TD-E maintains this specification across its qualified temperature range, supporting energy-efficient designs where standby current must be tightly controlled.
Can HZS22-2TD-E be used in surface-mount designs?
No - the HZS22-2TD-E uses the axial-leaded MHD package (JEITA GRZZ0002ZC-A), which is through-hole only. It is not compatible with SMT reflow or paste printing processes. For surface-mount equivalents, consider Renesas' HZU series or other SOD-123/SMA packaged Zeners; the HZS22-2TD-E is intended for wave-soldered or hand-assembled boards with 5 mm lead pitch.
What is the thermal resistance junction-to-ambient for HZS22-2TD-E?
Renesas does not publish a specific RθJA value for the HZS22-2TD-E in the HZS Series datasheet (REJ03G0184-0500 Rev.5.00). Derating is instead provided graphically in Figure 3: Power Dissipation vs. Ambient Temperature. At Ta = 70°C, usable Pd drops to ~250 mW. Designers must rely on PCB copper area, airflow, and layout per Figure 3 rather than a fixed RθJA number for the HZS22-2TD-E.
HZS22-2TD-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:
- -
HZS22-2TD-E FAQ
1.How can I place an order for HZS22-2TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS22-2TD-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 HZS22-2TD-E reliable?
The price and inventory of HZS22-2TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS22-2TD-E is usually 5 days.
3.What payment methods are accepted for HZS22-2TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS22-2TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS22-2TD-E?
HZS22-2TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS22-2TD-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 HZS22-2TD-E?
For technical support, including HZS22-2TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS22-2TD-E requirements.
6.How does Aetrix verify that HZS22-2TD-E is sourced from the original manufacturer or authorized distributors?
All HZS22-2TD-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 HZS22-2TD-E meets industry standards.
7.What is the process for return or replacement of HZS22-2TD-E?
All HZS22-2TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS22-2TD-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 HZS22-2TD-E part is unused and in its original packaging.
Return procedure for HZS22-2TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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