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Taiwan Semiconductor Corporation 1.5SMC150AH
- Part No.:
- 1.5SMC150AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150AH.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,333
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Product details
Overview
1.5SMC150AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It delivers 1500W peak pulse power, clamps transients to ≤207V at 7.6A, and features a 128V working stand-off voltage with <1μA leakage above 10V. It is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics.
For engineers reviewing the 1.5SMC150AH datasheet, 1.5SMC150AH pinout, 1.5SMC150AH application, or 1.5SMC150AH equivalent, key selection criteria include clamping voltage under 207V at 7.6A, DO-214AB package compatibility, unidirectional polarity marking, and compliance with automotive ESD/surge immunity standards.
Technical Context
The 1.5SMC150AH operates as a unidirectional avalanche diode, activated when reverse voltage exceeds its 143–158V breakdown range (tested at 1mA). Its glass-passivated junction ensures stable VBR temperature coefficient of 0.108%/°C and fast response (<1.0ps), enabling effective suppression of ESD and lightning-induced transients.
Thermally, it supports operation from –55°C to +150°C junction temperature, with RθJA = 50°C/W and RθJC = 15°C/W. It withstands 200A non-repetitive forward surge (8.3ms half-sine) and maintains <1μA blocking leakage at 128V, confirming low standby power impact in protected circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR Min/Max | 143V / 158V @ 1mA - defines reliable turn-on threshold for overvoltage detection |
| VWM | 128V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | ≤207V @ 7.6A - clamping voltage during 10/1000μs surge, limiting stress on downstream ICs |
| PPK | 1500W - peak pulse power handling per single 10/1000μs transient event |
| IR @ VWM | <1μA - negligible standby current draw, critical for low-power battery systems |
| TJ Range | –55°C to +150°C - enables use in under-hood automotive and industrial environments |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 2.5mm creepage/clearance |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Weight: 0.210g. Meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Reverse-biased surge clamping terminal | Connected to protected line (e.g., 12V rail); marked with band; conducts only during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift across lifetime and temperature |
| ISO 7637-2 compliance | Guarantees robustness against load-dump, supply interruption, and coupled transients in vehicle ECUs |
| Fast response time <1.0ps | Enables clamping before sensitive logic or analog circuitry sustains damage from ESD events |
| Moisture sensitivity level 1 | Allows unlimited floor life without dry-pack requirements-ideal for automated SMT assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V power inputs in body control modules (BCM), lighting drivers, and infotainment head units from load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp transients before they reach PMICs or microcontrollers. Use Value: Limits peak voltage to ≤207V during 7.6A surge, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-leakage TVS connected across differential or single-ended signal lines to shunt ESD energy to chassis ground. Use Value: Maintains <1μA leakage at 128V, avoiding signal offset or gain error in precision 4–20mA loops. |
| Telecom DC Feeder Protection | Consumer USB Power Delivery Line |
Use Scenario: Shielding -48V DC telecom power feeds from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary surge arrestor on input stage of DC-DC converters powering base station radios. Use Value: Absorbs 1500W pulses without degradation, preserving system uptime in harsh outdoor deployments. | Use Scenario: Adding secondary overvoltage protection on VBUS lines in USB-C PD adapters and docking stations. IC Role / Device Role / Timing Role: Back-to-back clamping element (with bidirectional variant) or unidirectional rail clamp on output side of buck controller. Use Value: Clamps fast-rising transients from hot-plug events to ≤207V, meeting USB IF ESD immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Same 150V VWM, but 600W PPK; DO-214AA (SMB) package - smaller footprint, lower thermal mass | Limited to lower-energy transients; not suitable for ISO 7637-2 Pulse 5a (load dump) | Select SMBJ150A only for space-constrained consumer designs where 600W surge margin suffices. |
| 1.5KE150A | Through-hole TO-204AE (DO-41); same 150V rating and 1500W rating, but slower response (~1ns) and higher leakage | Requires PCB through-hole real estate; incompatible with fully SMT production | Choose 1.5KE150A only for legacy board rework or prototyping where SMT assembly is unavailable. |
Compared with SMBJ150A and 1.5KE150A, the 1.5SMC150AH provides superior surge robustness in a compact SMT package with automotive-qualified reliability and sub-1ps response-making it optimal for modern automotive and industrial power rail protection where layout density and compliance are critical.
Availability
1.5SMC150AH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom DC feeder protection requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for 1.5SMC150AH 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, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101-certified production lines.
The 1.5SMCxxAH series is part of TSC's automotive-grade SMC-package TVS family, engineered specifically for high-reliability DC power line protection in vehicles and industrial equipment subject to ISO 7637-2 and IEC 61000-4-2 stress conditions.
FAQ
What is the breakdown voltage range for the 1.5SMC150AH?
The 1.5SMC150AH has a guaranteed breakdown voltage (VBR) range of 143V to 158V at 1mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage design margins in automotive and industrial systems where the 1.5SMC150AH is deployed.
Is the 1.5SMC150AH suitable for bidirectional surge protection?
No-the 1.5SMC150AH is a unidirectional TVS diode intended for DC line protection with defined anode/cathode polarity. For bidirectional applications (e.g., AC lines or data buses), TSC offers the 1.5SMC150CAH variant. Using the 1.5SMC150AH in reverse-biased AC configurations risks permanent failure due to forward conduction during negative half-cycles.
Does the 1.5SMC150AH meet automotive qualification standards?
Yes-the 1.5SMC150AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its glass-passivated junction, moisture sensitivity level 1, and full temperature range (–55°C to +150°C) confirm suitability for under-hood and ECU-level deployment in passenger and commercial vehicles using the 1.5SMC150AH.
What is the maximum clamping voltage of the 1.5SMC150AH during a surge event?
The 1.5SMC150AH clamps to a maximum of 207V when subjected to its rated peak pulse current of 7.6A (10/1000μs waveform). This value is specified in the datasheet's Electrical Specifications table and represents the worst-case voltage seen by downstream components during standardized surge testing-critical for validating safe operating area in circuits protected by the 1.5SMC150AH.
Can the 1.5SMC150AH be used in high-humidity or outdoor environments?
Yes-the 1.5SMC150AH uses UL 94V-0 compliant molding compound and matte tin-plated leads qualified to J-STD-002 solderability and JESD201 Class 2 whisker resistance. Its DO-214AB package and glass-passivated die provide robust moisture barrier performance, supporting reliable operation in humid, coastal, or outdoor telecom and transportation applications where the 1.5SMC150AH is installed.
1.5SMC150AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC150AH FAQ
1.How can I place an order for 1.5SMC150AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150AH 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 1.5SMC150AH reliable?
The price and inventory of 1.5SMC150AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC150AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC150AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150AH?
1.5SMC150AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150AH 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 1.5SMC150AH?
For technical support, including 1.5SMC150AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150AH requirements.
6.How does Aetrix verify that 1.5SMC150AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150AH 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 1.5SMC150AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC150AH?
All 1.5SMC150AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150AH, 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 1.5SMC150AH part is unused and in its original packaging.
Return procedure for 1.5SMC150AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150AH Tags
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