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Taiwan Semiconductor Corporation SMDJ16CAH
- Part No.:
- SMDJ16CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ16CAH.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,235
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Product details
Overview
SMDJ16CAH from Taiwan Semiconductor is a bidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 16V working stand-off voltage (VWM), 17.8–19.7V breakdown voltage (VBR), and 26.0V clamping voltage (VC) at 115.4A peak pulse current. It is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection.
For engineers reviewing the SMDJ16CAH datasheet, SMDJ16CAH pinout, SMDJ16CAH application, or SMDJ16CAH equivalent, key selection criteria include bidirectional clamping performance, 175°C junction rating, moisture sensitivity level 1 compliance, UL 94V-0 molding compound, and suitability for high-energy transients in automotive power electronics and industrial control interfaces.
Technical Context
The SMDJ16CAH is a glass-passivated, single-die bidirectional TVS diode designed for fast transient suppression in harsh environments. Its sub-1.0ps response time and 3000W peak pulse power rating enable robust immunity against lightning-induced surges and load-switching spikes per ISO 7637-2.
It operates across –55°C to +175°C junction temperature range with 75°C/W junction-to-ambient thermal resistance. The device features matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance, supporting automated placement in high-reliability PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 17.8 V / 19.7 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 26.0 V - Clamped voltage at 115.4 A peak pulse current, limiting downstream stress |
| PPK | 3000 W - Peak pulse power handling capability for 1 ms 10/1000 µs waveform |
| TJ max | +175 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| MSL | Level 1 - No floor life limitation; safe for standard reflow without dry-pack requirements |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as anode or cathode depending on polarity of transient event; no fixed polarity marking required |
| Case (cathode band absent) | Thermal and mechanical interface | DO-214AB body provides mechanical anchoring and contributes to thermal dissipation via PCB copper area |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching transients) without degradation |
| Glass-passivated junction | Enhances long-term stability and leakage current consistency under thermal and humidity stress |
| UL 94V-0 molding compound | Self-extinguishing encapsulation material meeting flammability safety requirements for enclosed systems |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load-dump transients during alternator regulation faults. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed at input filter stage to limit voltage excursion to ≤26.0 V during 3000W pulses. Use Value: Prevents damage to upstream DC-DC converters and microcontrollers by clamping transients below their absolute maximum ratings. | Use Scenario: Shielding 24V digital input modules from inductive kickback when solenoids or relays de-energize. IC Role / Device Role / Timing Role: Fast-response (sub-1 ps) surge suppressor installed across field wiring terminals to absorb 10/1000 µs energy bursts. Use Value: Maintains signal integrity and prevents false triggering in isolated input circuits without adding propagation delay. |
| Telecom Power Interface | Consumer Equipment Surge Immunity |
Use Scenario: Safeguarding PoE-powered switch ports against lightning-induced surges on Ethernet lines. IC Role / Device Role / Timing Role: Primary-level TVS on DC input rail, coordinated with secondary-side protection to meet IEC 61000-4-5 Level 4. Use Value: Enables system-level surge withstand up to 4 kV (line-earth) while preserving low-leakage operation (<1 µA @ 16 V). | Use Scenario: Hardening USB-C power delivery inputs in portable devices against ESD and hot-swap transients. IC Role / Device Role / Timing Role: Bidirectional clamping element between VBUS and GND, rated for ±15 kV contact discharge per IEC 61000-4-2. Use Value: Eliminates need for additional series impedance or RC filtering due to ultra-low clamping voltage ratio (VC/VWM = 1.625). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16CA | Same DO-214AC (SMA) package; lower PPK (400W); higher VC (26.5 V @ 11.7 A) | Not suitable for 3000W ISO 7637-2 Pulse 1; limited to lower-energy ESD/lightning events | Select only if board space constraints require smaller SMA footprint and system transients are <500W |
| ON Semiconductor SMCJ16CA | DO-214AB (SMC) package; identical PPK (3000W); slightly higher VC (27.0 V @ 113 A) | Compatible for same automotive/industrial use cases but requires validation of 1.0 V higher clamping margin | Drop-in replacement where 27.0 V clamping is acceptable and existing layout uses SMC footprint |
Compared with SMDJ16CAH, SMAJ16CA offers smaller size but insufficient energy handling for automotive load-dump, while SMCJ16CA matches package and power rating but raises clamping voltage by 1.0 V-requiring verification against downstream IC tolerances.
Availability
SMDJ16CAH is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom power interface, and consumer equipment surge immunity requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for SMDJ16CAH 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 thyristors for industrial and automotive markets.
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 clamping voltage of the SMDJ16CAH and how is it measured?
The SMDJ16CAH has a maximum clamping voltage (VC) of 26.0 V, measured at 115.4 A peak pulse current (IPPM) using a 10/1000 µs waveform per IEC 61000-4-5. This value ensures that downstream components see no more than 26.0 V during a 3000W transient event. The SMDJ16CAH maintains consistent clamping performance across its full operating temperature range from –55°C to +175°C.
Is the SMDJ16CAH unidirectional or bidirectional, and how does that affect circuit design?
The SMDJ16CAH is a bidirectional TVS diode, meaning it protects against transients of either polarity without requiring orientation during placement. Unlike unidirectional variants (e.g., SMDJ16AH), the SMDJ16CAH has no cathode band and functions identically in both directions-ideal for AC-coupled or floating DC rails. This simplifies layout and eliminates polarity-related assembly errors in the SMDJ16CAH implementation.
Does the SMDJ16CAH meet automotive qualification standards?
Yes, the SMDJ16CAH is AEC-Q101 qualified and tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for automotive electrical systems. Its 175°C maximum junction temperature, MSL Level 1 rating, and glass-passivated junction support under-hood deployment. The SMDJ16CAH also complies with RoHS and halogen-free standards per IEC 61249-2-21.
What is the thermal resistance of the SMDJ16CAH and how does it impact PCB layout?
The SMDJ16CAH has a junction-to-ambient thermal resistance (RθJA) of 75°C/W and junction-to-lead resistance (RθJL) of 15°C/W. To maintain safe operation at full 3000W pulse loading, PCB layout must provide adequate copper area-minimum 100 mm² per pad-and avoid thermal isolation. The SMDJ16CAH's DO-214AB package relies on thermal conduction through its leads and case to the board, not internal heatsinking.
How does the SMDJ16CAH compare to the SMDJ16AH in terms of electrical behavior?
The SMDJ16CAH is the bidirectional version of the SMDJ16AH unidirectional TVS. Both share identical VWM (16 V), VBR (17.8–19.7 V), and VC (26.0 V), but the SMDJ16AH includes a cathode band and only clamps in reverse bias. The SMDJ16CAH suppresses transients in both directions, making it suitable for AC signals or symmetric DC buses where polarity reversal may occur during fault conditions.
SMDJ16CAH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 115.4A
- 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)
SMDJ16CAH FAQ
1.How can I place an order for SMDJ16CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ16CAH 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 SMDJ16CAH reliable?
The price and inventory of SMDJ16CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ16CAH is usually 5 days.
3.What payment methods are accepted for SMDJ16CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ16CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ16CAH?
SMDJ16CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ16CAH 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 SMDJ16CAH?
For technical support, including SMDJ16CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ16CAH requirements.
6.How does Aetrix verify that SMDJ16CAH is sourced from the original manufacturer or authorized distributors?
All SMDJ16CAH 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 SMDJ16CAH meets industry standards.
7.What is the process for return or replacement of SMDJ16CAH?
All SMDJ16CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ16CAH, 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 SMDJ16CAH part is unused and in its original packaging.
Return procedure for SMDJ16CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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