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Taiwan Semiconductor Corporation SMDJ60AH
- Part No.:
- SMDJ60AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ60AH.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,432
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Product details
Overview
SMDJ60AH from Taiwan Semiconductor is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode with a 60V working stand-off voltage, 66.7–73.7V breakdown voltage at 1mA, and 96.8V maximum clamping voltage at 31.0A peak pulse current. It is AEC-Q101 qualified and designed for automotive and industrial surge protection in power supply rails and interface lines.
For engineers reviewing the SMDJ60AH datasheet, SMDJ60AH pinout, SMDJ60AH application, or SMDJ60AH equivalent, key selection criteria include its DO-214AB (SMC) package, 175°C junction temperature rating, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, and unidirectional polarity marking.
Technical Context
The SMDJ60AH operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast transient suppression with low clamping ratio (VC/VBR ≈ 1.45). Its thermal design supports 75°C/W junction-to-ambient resistance and 15°C/W junction-to-lead resistance, enabling reliable operation under repetitive surge conditions up to 6.5W steady-state dissipation.
It meets stringent automotive EMC requirements per ISO 7637-2 across all five pulse waveforms and complies with J-STD-020 moisture sensitivity level 1 - confirming suitability for lead-free reflow without popcorn cracking or delamination risks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VBR @ IT=1mA | 66.7–73.7 V - Confirmed breakdown threshold defining turn-on precision for surge detection |
| VC @ IPPM=31.0A | 96.8 V - Clamped voltage during 10/1000µs surge, limiting downstream stress to safe levels |
| PPK | 3000 W - Peak pulse power handling capability for 1ms non-repetitive transients |
| TJ max | +175 °C - Maximum junction temperature enabling high-temperature automotive under-hood use |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 7.11 × 6.22 mm footprint and cathode band polarity marking |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, UL 94V-0 flammability rating, and polarity indicated by cathode band on unidirectional devices. Weight: 0.290 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge events (e.g., reverse battery) |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential rail; avalanches into conduction when reverse voltage exceeds VBR to clamp transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control units and ADAS power domains |
| Glass passivated junction | Enhanced stability and reduced parameter drift over temperature and lifetime vs. epoxy-passivated alternatives |
| ISO 7637-2 compliance | Guaranteed immunity to load-dump, jump-start, and alternator ripple-induced transients in 12V/24V systems |
| Sub-1 ps response time | Enables protection of high-speed interfaces (e.g., CAN FD, LIN) without signal distortion or timing skew |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs against load dump pulses up to 35V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and ground to clamp surges before reaching DC-DC converters or microcontrollers. Use Value: Limits peak voltage to ≤96.8V during 3000W transients, preserving downstream components rated for ≤100V absolute maximum ratings. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Standoff protection device on 24V sensor input lines, absorbing repetitive 10/1000µs transients induced by relay coil de-energization. Use Value: Maintains <1µA leakage at 60V, ensuring accurate low-current sensing while clamping spikes to prevent false triggering or latch-up. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing PoE-powered equipment front-end circuits against lightning-induced surges on 48V DC distribution lines. IC Role / Device Role / Timing Role: Primary surge arrestor on DC input stage, coordinated with upstream fuses and downstream LC filters. Use Value: Delivers 3000W peak power handling with 96.8V clamping, compatible with IEEE 802.3bt Type 4 PoE+ voltage margins. | Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Unidirectional clamping diode across motor terminals or H-bridge outputs to absorb inductive kickback. Use Value: Withstands 300A peak forward surge (IFSM), surviving repeated motor commutation events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC60 | Lower PPK (1500W), higher VC (103V @ 22A), same DO-214AB package | Not AEC-Q101 qualified; limited to commercial-grade industrial use | Select SAC60 only if system-level surge energy is confirmed ≤1500W and automotive qualification is not required. |
| SMCJ60A | Identical electrical specs and AEC-Q101 rating; same DO-214AB package but different marking code and tape/reel packaging | No functional difference; fully interchangeable in layout and circuit behavior | SMCJ60A is a direct second-source alternative with identical performance and qualification - suitable for dual-sourcing strategies. |
Compared with SAC60, the SMDJ60AH provides double the peak power rating and automotive qualification; compared with SMCJ60A, it offers identical protection performance but differs only in manufacturer-specific traceability and reel packaging - making SMCJ60A the preferred drop-in alternative where supply chain diversification is needed.
Availability
SMDJ60AH is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC I/O modules, telecom DC power interfaces, and consumer appliance motor drive circuits requiring stable component supply across extended production lifecycles.
Supply support for SMDJ60AH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The SMDJ series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust thermal performance in surface-mount packages.
FAQ
What is the maximum clamping voltage of the SMDJ60AH under standard test conditions?
The SMDJ60AH has a maximum clamping voltage (VC) of 96.8 V at a peak pulse current (IPPM) of 31.0 A, measured using the 10/1000 µs waveform per IEC 61000-4-5. This value ensures that downstream components see no more than 96.8 V during worst-case surge events, supporting robust system-level overvoltage protection design for the SMDJ60AH.
Is the SMDJ60AH suitable for automotive applications?
Yes, the SMDJ60AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. Its 175°C maximum junction temperature, glass-passivated junction, and DO-214AB mechanical construction make it suitable for under-hood and body-control module applications where the SMDJ60AH provides certified transient immunity.
What does the "AH" suffix indicate in SMDJ60AH?
The "AH" suffix denotes a unidirectional TVS diode in the SMDJ family with AEC-Q101 qualification and halogen-free construction per IEC 61249-2-21. It distinguishes the part from bidirectional variants (e.g., SMDJ60CAH) and confirms compliance with automotive reliability and environmental standards for the SMDJ60AH.
Can the SMDJ60AH be used in bidirectional signal lines?
No - the SMDJ60AH is unidirectional and must be used with correct polarity orientation (cathode to higher potential). For bidirectional protection, the SMDJ60CAH variant is specified. Using the SMDJ60AH on AC or symmetrical signal lines risks failure during negative excursions, so proper device selection is critical for the SMDJ60AH's intended use case.
What is the thermal resistance from junction to ambient for the SMDJ60AH?
The SMDJ60AH has a typical junction-to-ambient thermal resistance (RθJA) of 75°C/W when mounted on a standard JEDEC 2-layer PCB with 1-inch² copper pad. This value supports thermal design calculations for sustained power dissipation and derating above 25°C ambient, ensuring long-term reliability of the SMDJ60AH in enclosed or high-temperature environments.
SMDJ60AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMDJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 31A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ60AH FAQ
1.How can I place an order for SMDJ60AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ60AH 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 SMDJ60AH reliable?
The price and inventory of SMDJ60AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ60AH is usually 5 days.
3.What payment methods are accepted for SMDJ60AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ60AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ60AH?
SMDJ60AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ60AH 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 SMDJ60AH?
For technical support, including SMDJ60AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ60AH requirements.
6.How does Aetrix verify that SMDJ60AH is sourced from the original manufacturer or authorized distributors?
All SMDJ60AH 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 SMDJ60AH meets industry standards.
7.What is the process for return or replacement of SMDJ60AH?
All SMDJ60AH units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ60AH, 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 SMDJ60AH part is unused and in its original packaging.
Return procedure for SMDJ60AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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