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Taiwan Semiconductor Corporation 1M180Z A0G
- Part No.:
- 1M180Z A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1M180Z A0G.pdf
- Description:
- DIODE ZENER 180V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,649
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Product details
Overview
1M180Z from Taiwan Semiconductor is a 1 W, 180 V ±5% Zener diode in DO-204AL (DO-41) package, designed for voltage regulation and overvoltage protection in power supply rails and transient suppression circuits. It delivers nominal zener voltage of 180 V at 1.4 mA test current, with dynamic impedance of 7000 Ω at 1200 mA surge current, and operates across –55°C to +150°C junction temperature range.
For engineers reviewing the 1M180Z datasheet, 1M180Z pinout, 1M180Z application, or 1M180Z equivalent, key selection criteria include its 180 V nominal breakdown voltage, 1 W total power dissipation, low leakage (<5 μA above 136.8 V), glass-passivated junction, and AEC-Q101 qualification availability - critical for automotive and industrial reliability validation.
Technical Context
The 1M180Z functions as a single-die, unidirectional silicon Zener diode optimized for stable reverse-biased voltage clamping. Its 180 V nominal zener voltage is specified at IZT = 1.4 mA with ±5% tolerance, and it maintains regulation under non-repetitive 1200 mA surge pulses per JEDEC standards.
Thermal performance is defined by a 150°C maximum junction temperature and 6.67 mW/°C derating above 50°C on a 5 mm × 5 mm Cu pad. The device features low-inductance construction, pure tin-plated leads compliant with J-STD-002, and meets UL 94V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 171.0–189.0 V at IZT = 1.4 mA - ensures precise 180 V regulation with ±5% tolerance for high-voltage reference stability |
| Total Power Dissipation (Ptot) | 1 W at TA = 50°C - defines continuous steady-state power handling before thermal derating begins |
| Surge Current (ISM) | 1200 mA (non-repetitive, 1/120 s pulse) - supports transient overvoltage absorption in power rail protection |
| Junction Temperature Range (TJ) | –55°C to +150°C - enables operation in under-hood automotive and industrial ambient environments |
| Zener Impedance (ZZT) | 7000 Ω at IZT = 1.4 mA - indicates regulation stiffness at low test current; higher impedance typical for high-VZ devices |
| Leakage Current (IR) | <5 μA at VR = 136.8 V - confirms minimal standby conduction below breakdown threshold |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package with cathode band polarity marking and 0.300 g mass |
Pinout & Package
DO-204AL (DO-41) is a hermetically sealed, axial-leaded, glass-passivated package with two terminals: anode and cathode. Polarity is marked by a cathode band on the body. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in reverse-bias regulation | Connected to lower potential node; carries forward current during bias or surge conduction path |
| Cathode | Zener breakdown terminal / high-side connection in reverse-bias regulation | Connected to regulated rail; defines clamping voltage relative to anode; marked by band |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives, critical for automotive under-hood use |
| Built-in strain relief | Reduces mechanical stress transfer from PCB flexure or thermal cycling to die bond, improving field lifetime |
| Low inductance construction | Minimizes voltage overshoot during fast transients, enabling effective clamping of high-di/dt events |
| AEC-Q101 qualification available | Validates robustness for automotive electronics applications including engine control and body modules |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives for sustainable manufacturing and end-of-life processing |
Applications
| Industrial Power Supply Regulation | Automotive Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing auxiliary 180 V DC bus in programmable logic controller (PLC) backplane power distribution. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and regulate voltage against line fluctuations and load transients. Use Value: Maintains ±5% output accuracy at 1.4 mA bias while absorbing up to 1200 mA surge pulses without failure. |
Use Scenario: Protecting 12 V system sensors connected to high-voltage battery monitoring circuits in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Standby clamping device that activates only during fault conditions exceeding 136.8 V reverse bias. Use Value: Prevents sensor IC damage from load dump or alternator surge events with <5 μA leakage at normal operating voltage. |
| High-Voltage Reference Source | Telecom Line Surge Suppression |
Use Scenario: Providing stable 180 V reference for analog-to-digital converter (ADC) scaling in industrial data acquisition systems. IC Role / Device Role / Timing Role: Precision voltage reference element biased at 1.4 mA with ±5% tolerance and low TC drift above 12 V. Use Value: Enables accurate 16-bit ADC full-scale calibration with minimal temperature-induced error across –40°C to +85°C. |
Use Scenario: Front-end protection on AC-powered telecom line interface cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt protector placed before isolation transformer to divert high-energy transients. Use Value: Absorbs 1200 mA non-repetitive surges per JEDEC while maintaining <5 μA leakage at 136.8 V operating bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode regulation and protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4763A | 91 V nominal zener voltage, 2.8 Ω ZZT at 250 mA - significantly lower VZ, lower impedance, higher test current | Targeted for mid-range voltage rails (e.g., 90 V SMPS feedback); not suitable for 180 V clamping requirements | Select only when system requires ~91 V regulation and tighter dynamic impedance at higher bias current |
| 1M200Z | 200 V nominal zener voltage, 1.2 Ω ZZT at 1500 mA - higher VZ, lower impedance, higher surge rating | Used where higher clamping threshold is needed (e.g., 200 V DC link protection); shares same DO-41 package and thermal specs | Choose 1M200Z instead of 1M180Z only if design margin requires >189 V upper limit or higher surge headroom |
Compared with 1N4763A and 1M200Z, the 1M180Z uniquely balances 180 V clamping precision, 1.4 mA low-current regulation capability, and 1200 mA surge capacity in DO-41 - making it optimal for 171–189 V reference and protection tasks where adjacent voltages are insufficient or excessive.
Availability
1M180Z is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive overvoltage protection, high-voltage reference sourcing, and telecom line surge suppression requiring stable component supply and long-term manufacturability.
Supply support for 1M180Z 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, rectifiers, and Zener diodes with global AEC-Q101 and industrial qualification capabilities.
The 1M180Z belongs to TSC's 1N47xxA/1MxZ family of 1 W Zener diodes engineered for high-reliability voltage regulation and transient suppression in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the nominal zener voltage and tolerance of the 1M180Z?
The 1M180Z has a nominal zener voltage of 180 V with a standard tolerance of ±5%, meaning its actual breakdown voltage falls between 171.0 V and 189.0 V when measured at 1.4 mA test current and 30°C lead temperature. This tolerance is consistent across the full 1N47xxA/1MxZ family and is verified per JEDEC registration standards.
Does the 1M180Z have AEC-Q101 qualification?
The base 1M180Z part is not inherently AEC-Q101 qualified; however, the AEC-Q101 variant is available under ordering codes such as 1M180ZH or 1M180ZHA0G. These versions undergo additional stress testing per AEC-Q101 Rev D and are marked accordingly - confirmation requires checking the specific orderable part number and packaging code.
What is the maximum surge current rating for the 1M180Z?
The 1M180Z is rated for a non-repetitive peak reverse surge current of 1200 mA, defined as a 1/120 second duration half-sine or equivalent waveform superimposed on the 1.4 mA test current. This rating is validated per JEDEC standards and reflects capability under short-duration overvoltage events.
Can the 1M180Z be used in surface-mount designs?
No - the 1M180Z is exclusively packaged in DO-204AL (DO-41), an axial-leaded through-hole package. It is not offered in SMD variants such as SOD-123 or SMA. For surface-mount equivalents at similar voltage ratings, alternative families like TSC's SZ1M180Z or other manufacturers' SOD-123 Zeners must be evaluated separately.
What is the thermal derating behavior of the 1M180Z above 50°C ambient?
The 1M180Z derates linearly at 6.67 mW/°C above 50°C ambient when mounted on a 5 mm × 5 mm copper pad. At 100°C ambient, its usable power dissipation drops to approximately 0.67 W. This derating curve is defined in the absolute maximum ratings table and must be applied in thermal design calculations for sustained operation.
1M180Z A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 180 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 1200 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 136.8 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
1M180Z A0G FAQ
1.How can I place an order for 1M180Z A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1M180Z A0G 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 1M180Z A0G reliable?
The price and inventory of 1M180Z A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1M180Z A0G is usually 5 days.
3.What payment methods are accepted for 1M180Z A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1M180Z A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1M180Z A0G?
1M180Z A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1M180Z A0G 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 1M180Z A0G?
For technical support, including 1M180Z A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1M180Z A0G requirements.
6.How does Aetrix verify that 1M180Z A0G is sourced from the original manufacturer or authorized distributors?
All 1M180Z A0G 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 1M180Z A0G meets industry standards.
7.What is the process for return or replacement of 1M180Z A0G?
All 1M180Z A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1M180Z A0G, 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 1M180Z A0G part is unused and in its original packaging.
Return procedure for 1M180Z A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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