Taiwan Semiconductor Corporation 2M200Z
- Part No.:
- 2M200Z
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
2M200Z.pdf
- Description:
- DIODE ZENER 200V 2W DO204AC
- Quantity:
- Payment:

- Shipping:

Inventory:2,667
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Product details
Overview
2M200Z from Taiwan Semiconductor is a 200 V, 2.5 mA test-current Zener diode in DO-204AC (DO-15) package, rated for 2 W steady-state power dissipation and operating junction temperature up to +175°C. It delivers precise voltage regulation with 900 Ω dynamic impedance at IZT and ≤0.5 µA leakage current at 152 V, suited for overvoltage protection in industrial power supplies.
For engineers reviewing the 2M200Z datasheet, 2M200Z pinout, 2M200Z application, or 2M200Z equivalent, key selection criteria include its 200 V nominal Zener voltage, 2.5 mA test current, 900 Ω Zener impedance at IZT, ±5% voltage tolerance, and AEC-Q101 qualification availability - all critical for high-reliability clamping and reference designs.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable voltage across load variations. Its glass-passivated junction ensures low leakage (<0.5 µA at VR = 152 V) and robust thermal stability over –55°C to +175°C junction range.
The device is characterized at 25°C with 200 V Zener voltage measured under 40 ms current pulse, 0.375" lead length, and defined by JEDEC-standard non-repetitive surge rating (IZM = 9 mA). Its DO-204AC package supports 2 W dissipation at TL = 75°C on 10 mm × 10 mm Cu pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±5% - defines clamping threshold in overvoltage protection circuits |
| Test Current (IZT) | 2.5 mA - standardized bias point for guaranteed VZ and impedance measurement |
| Zener Impedance (ZZT) | 900 Ω at IZT - determines regulation stiffness under dynamic load transients |
| Max Leakage Current (IR) | ≤0.5 µA at VR = 152 V - ensures minimal standby power loss in high-impedance bias networks |
| Power Dissipation (PD) | 2 W at TL = 75°C - sets thermal design margin for PCB copper pad layout (10 mm × 10 mm) |
| Junction Temp Range (TJ) | –55°C to +175°C - enables operation in under-hood automotive and industrial ambient environments |
| Surge Current (IFSM) | 15 A (8.3 ms half-sine) - withstands short-duration line surges without degradation |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, glass-passivated silicon die, cathode indicated by band. Weight: ~0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to circuit ground or lower-potential rail during Zener operation |
| Cathode | Reverse-biased Zener terminal / regulated output node | Provides stable 200 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables <0.5 µA leakage at 152 V and long-term reliability in humid environments |
| AEC-Q101 qualification option | Supports automotive-grade stress testing (HTOL, TC, HTRB) when ordered as 2M200ZH |
| UL 94V-0 molding compound | Meets flame-retardant safety requirements for enclosed industrial equipment |
| Pure tin-plated leads | Ensures solderability per J-STD-002 and eliminates whisker risk (JESD 201 Class 2) |
Applications
| Industrial Power Supply Protection | Automotive ECU Voltage Clamp |
|---|---|
Use Scenario: Clamping transient spikes on 24 V DC input rails of PLC power modules during load dump or inductive switching. IC Role / Device Role / Timing Role: Discrete Zener clamp absorbing >15 A surge energy without failure. Use Value: Prevents downstream regulator IC damage using 200 V standoff and 2 W continuous dissipation capability. | Use Scenario: Overvoltage protection on microcontroller supply lines in engine control units exposed to battery transients. IC Role / Device Role / Timing Role: Standby-mode shunt regulator holding rail below 200 V during ISO 7637-2 Pulse 5a events. Use Value: Leverages ≤0.5 µA leakage and AEC-Q101-qualified variant (2M200ZH) for zero-current impact on sleep mode. |
| High-Voltage Reference Source | Telecom Line Interface Protection |
Use Scenario: Precision biasing of op-amp feedback networks in HV sensor signal conditioning circuits (e.g., 100–300 V range). IC Role / Device Role / Timing Role: Stable 200 V reference node with 900 Ω impedance enabling <1% error under 100 µA load variation. Use Value: Delivers repeatable accuracy without active regulation, reducing BOM count in isolated analog front-ends. | Use Scenario: Secondary-side surge suppression on -48 V telecom power feeds subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting voltage excursion to ≤200 V before TVS activation. Use Value: Extends system-level surge immunity by sharing energy with upstream TVS via coordinated VZ/VBR staging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4747A | 200 V nominal, 25 mA IZT, 1.1 W PD, DO-41 package | Lower power rating and higher test current reduce suitability for sustained clamping in 2 W thermal environments | Select only if board space allows DO-41 and peak power remains <1.1 W |
| BZX85C200 | 200 V nominal, 5 mA IZT, 1.3 W PD, DO-41 package, ±5% tolerance | Higher leakage (≤5 µA at 160 V) and lower surge rating (10 A) limit use in low-power precision references | Prefer for cost-sensitive consumer designs where 1.3 W derating and 5 µA leakage are acceptable |
Compared with 1N4747A and BZX85C200, the 2M200Z offers higher power handling (2 W vs ≤1.3 W), lower leakage (≤0.5 µA), and DO-204AC mechanical robustness - making it preferred for industrial and automotive applications requiring sustained 200 V clamping with thermal margin.
Availability
2M200Z is available at Aetrix Electronics and suitable for industrial power supply protection, automotive ECU voltage clamp, and high-voltage reference source applications requiring stable component supply and long-term lifecycle support.
Supply support for 2M200Z 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 protection components with global distribution and AEC-Q101 qualification capability.
The 2M200Z belongs to TSC's 2MxZ Zener diode family, engineered for high-reliability voltage regulation and transient suppression in harsh-environment applications including automotive, industrial controls, and telecom infrastructure.
FAQ
What is the Zener voltage tolerance for 2M200Z?
The 2M200Z has a standard Zener voltage tolerance of ±5%, meaning its actual breakdown voltage falls between 190 V and 210 V when measured under specified conditions (40 ms pulse, 25°C ambient, 0.375" lead length). Tighter tolerances are available as special-order variants but are not standard for the base 2M200Z part number.
Is 2M200Z RoHS and halogen-free compliant?
Yes, the 2M200Z is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and terminals feature pure tin plating qualified to J-STD-002 for solderability and JESD 201 Class 2 for whisker resistance - all confirmed in Taiwan Semiconductor's N2105 specification release.
Does 2M200Z have AEC-Q101 qualification?
The 2M200Z is available in an AEC-Q101-qualified version designated as 2M200ZH. The base 2M200Z part is not automatically qualified; qualification applies only to units ordered with the "H" suffix. This distinction is explicitly defined in the ordering information section of the datasheet (Version N2105).
What is the maximum Zener current (IZM) for 2M200Z?
The maximum non-repetitive peak Zener current (IZM) for 2M200Z is 9 mA, derived from a 1/2 sine wave surge of 1/120 second duration per JEDEC standard. This rating assumes superposition on the 2.5 mA test current (IZT) and defines safe single-event surge handling beyond steady-state operation.
How does thermal resistance affect 2M200Z performance in PCB layout?
2M200Z's junction-to-lead thermal resistance (ΘJL) varies with lead length - e.g., ~50°C/W at 0.375" - directly impacting allowable power dissipation. To achieve full 2 W rating, the device must be mounted on a 10 mm × 10 mm copper pad at TL = 75°C; reduced copper area or longer leads require derating per the transient thermal response curves in Figure 9 of the datasheet.
2M200Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 200 V
- Tolerance:
- ±5%
- Power - Max:
- 2 W
- Impedance (Max) (Zzt):
- 900 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 152 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
2M200Z FAQ
1.How can I place an order for 2M200Z through Aetrix?
Please submit a Request for Quotation (RFQ) for 2M200Z 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 2M200Z reliable?
The price and inventory of 2M200Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2M200Z is usually 5 days.
3.What payment methods are accepted for 2M200Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2M200Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2M200Z?
2M200Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2M200Z 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 2M200Z?
For technical support, including 2M200Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2M200Z requirements.
6.How does Aetrix verify that 2M200Z is sourced from the original manufacturer or authorized distributors?
All 2M200Z 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 2M200Z meets industry standards.
7.What is the process for return or replacement of 2M200Z?
All 2M200Z units undergo pre-shipment inspection (PSI). If there is an issue with 2M200Z, 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 2M200Z part is unused and in its original packaging.
Return procedure for 2M200Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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