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Renesas HZS30-2JTA-E
- Part No.:
- HZS30-2JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS30-2JTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZS30-2JTA-E from ROHM Semiconductor is a silicon epitaxial planar Zener diode designed for precision voltage regulation in stabilized power supplies, with a nominal zener voltage of 29.2–30.6 V at 2 mA test current, dynamic resistance of 100 Ω max, and 400 mW maximum power dissipation in DO-35 package.
For engineers reviewing the HZS30-2JTA-E datasheet, HZS30-2JTA-E pinout, HZS30-2JTA-E application, or HZS30-2JTA-E equivalent, key selection criteria include zener voltage tolerance (±1.4 V), temperature coefficient (≈+0.07 %/°C), low leakage (<1 µA at VR = 23.0 V), and suitability for high-speed automatic insertion on 5 mm-pitch PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode with DC-tested characteristics, optimized for stable reference voltage generation under fixed-current biasing. Its epitaxial planar structure ensures low noise, tight VZ distribution, and predictable temperature drift across industrial ambient ranges.
The device exhibits graded zener voltage tolerances per grade (e.g., "2" denotes ±1.4 V min/max spread), defined at IZ = 2 mA, with rd measured at AC signal superimposed on DC bias - confirming suitability for low-ripple regulation in linear post-regulators and feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 29.2–30.6 V at IZ = 2 mA - defines regulated output range in shunt regulator circuits |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 2 mA - determines load regulation sensitivity and ripple rejection |
| Max Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets thermal derating limit for PCB layout and heatsinking |
| Reverse Leakage (IR) | ≤1 µA at VR = 23.0 V - ensures minimal quiescent current in standby or low-power modes |
| Temperature Coefficient | +0.07 %/°C (≈+21 mV/°C) - enables predictable VZ drift compensation in wide-temp designs |
| Junction Temperature (Tj) | −55 to +200°C - supports operation in automotive under-hood and industrial control environments |
Pinout & Package
Package: DO-35 glass axial leaded package (2.5 mm diameter × 4.5 mm length), cathode band marked on body; leads spaced 5 mm for automated insertion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to higher potential node; reverse-biased terminal where regulated voltage appears |
| 2 (Non-banded End) | Anode | Connected to ground or lower potential; completes current path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low Zener impedance | 100 Ω max ensures <10 mV output variation per 1 mA load change in shunt configuration |
| Wide VZ spectrum (1.5–38 V) | Enables single-family sourcing across multiple supply rails without redesigning reference topology |
| 5 mm pitch compatibility | Supports high-throughput SMT-compatible through-hole insertion without retooling placement equipment |
| High junction temperature rating | 200°C Tj allows use in thermally constrained enclosures without external thermal relief |
Applications
| Industrial Power Supply Reference | Automotive ECU Voltage Monitor |
|---|---|
Use Scenario: Precision 30 V reference in isolated flyback auxiliary winding feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable setpoint for optocoupler-driven primary-side regulation. Use Value: Tight 29.2–30.6 V tolerance and low rd minimize output drift across line/load/temperature variations. | Use Scenario: Overvoltage detection circuit monitoring 24 V battery rail in engine control unit. IC Role / Device Role / Timing Role: Zener-clamped input protection stage feeding comparator threshold network. Use Value: 200°C junction rating ensures reliability during under-hood thermal cycling up to 150°C ambient. |
| Programmable Logic Controller I/O Module | Medical Sensor Signal Conditioning |
Use Scenario: 30 V rail stabilization for analog input front-end op-amps in PLC analog input cards. IC Role / Device Role / Timing Role: Local shunt regulator supplying clean bias to instrumentation amplifiers and ADC drivers. Use Value: Low leakage (<1 µA) prevents loading of high-impedance sensor interfaces and preserves accuracy. | Use Scenario: Reference voltage source for ratiometric pressure transducer excitation in portable diagnostic devices. IC Role / Device Role / Timing Role: Stable excitation reference ensuring consistent sensor gain and offset calibration over time. Use Value: Predictable +0.07 %/°C TC enables software-based temperature compensation without hardware recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4749A | Zener voltage 27–30 V (±5%), rd = 150 Ω max, Pd = 1 W, DO-41 package | Higher power rating but looser VZ tolerance and larger footprint; requires board rework for 5 mm pitch | Prefer when >400 mW dissipation needed and layout allows DO-41 spacing |
| BZX55C30 | Zener voltage 28.5–31.5 V (±5%), rd = 80 Ω max, Pd = 500 mW, DO-35 package | Narrower VZ spread than generic 5% parts but wider than HZS30-2JTA-E's ±1.4 V grade | Acceptable where tighter grading isn't required and cost is prioritized over precision |
Compared with 1N4749A and BZX55C30, HZS30-2JTA-E delivers superior voltage accuracy (±1.4 V vs ±1.5–3.0 V), lower thermal drift, and guaranteed 5 mm pitch compatibility - making it optimal for space-constrained, high-stability industrial and automotive shunt references.
Availability
HZS30-2JTA-E is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, programmable logic controllers, and medical sensor modules requiring stable component supply with tight voltage regulation and high-temperature reliability.
Supply support for HZS30-2JTA-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
ROHM Semiconductor is a Japanese semiconductor manufacturer specializing in analog, power, and sensor solutions for automotive, industrial, and consumer markets.
The HZS Series was developed specifically for high-accuracy, low-drift voltage reference applications in compact, thermally demanding environments - emphasizing grading consistency, low impedance, and automated assembly compatibility.
FAQ
What is the exact zener voltage range for HZS30-2JTA-E?
HZS30-2JTA-E has a specified zener voltage range of 29.2 V to 30.6 V when tested at IZ = 2 mA, corresponding to the "2" grade in ROHM's HZS Series nomenclature. This ±1.4 V tolerance is tighter than standard 5% Zeners and reflects its use in precision regulation circuits where output stability is critical. The value is DC-tested and guaranteed across full temperature and lifetime conditions.
Is HZS30-2JTA-E compatible with high-speed automatic insertion equipment?
Yes, HZS30-2JTA-E is explicitly designed for 5 mm-pitch high-speed automatic insertion, as confirmed in ROHM's datasheet (ADE-208-120A(Z)). Its DO-35 package features standardized lead spacing and mechanical robustness to withstand pick-and-place and axial insertion forces without damage or misalignment - eliminating need for manual placement or custom tooling.
What is the maximum reverse leakage current for HZS30-2JTA-E?
The maximum reverse leakage current for HZS30-2JTA-E is 1 µA at VR = 23.0 V and Ta = 25°C. This low IR ensures minimal parasitic current draw in standby or low-power monitoring circuits, preserving battery life in portable systems and preventing unintended bias shifts in high-impedance analog nodes where the HZS30-2JTA-E serves as a reference.
Does HZS30-2JTA-E have a specified temperature coefficient?
Yes, HZS30-2JTA-E has a positive temperature coefficient of approximately +0.07 %/°C (or +21 mV/°C), derived from ROHM's published Fig.2 in the HZS Series datasheet. This value enables predictable VZ drift modeling across −55°C to +150°C ambient, supporting accurate thermal compensation in closed-loop regulators and sensor excitation circuits using the HZS30-2JTA-E.
Can HZS30-2JTA-E be used in automotive under-hood applications?
Yes, HZS30-2JTA-E supports automotive under-hood use due to its rated junction temperature of 200°C and storage temperature range of −55°C to +175°C. Combined with its stable zener characteristics and low thermal drift, the HZS30-2JTA-E meets requirements for voltage monitoring and reference functions in engine control units, battery management interfaces, and other high-ambient-temperature automotive subsystems.
HZS30-2JTA-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:
- -
HZS30-2JTA-E FAQ
1.How can I place an order for HZS30-2JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS30-2JTA-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 HZS30-2JTA-E reliable?
The price and inventory of HZS30-2JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS30-2JTA-E is usually 5 days.
3.What payment methods are accepted for HZS30-2JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS30-2JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS30-2JTA-E?
HZS30-2JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS30-2JTA-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 HZS30-2JTA-E?
For technical support, including HZS30-2JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS30-2JTA-E requirements.
6.How does Aetrix verify that HZS30-2JTA-E is sourced from the original manufacturer or authorized distributors?
All HZS30-2JTA-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 HZS30-2JTA-E meets industry standards.
7.What is the process for return or replacement of HZS30-2JTA-E?
All HZS30-2JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS30-2JTA-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 HZS30-2JTA-E part is unused and in its original packaging.
Return procedure for HZS30-2JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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