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Taiwan Semiconductor Corporation 5.0SMDJ20AHM6G
- Part No.:
- 5.0SMDJ20AHM6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5.0SMDJ20AHM6G.pdf
- Description:
- TVS DIODE 20VWM 32.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,973
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Product details
Overview
5.0SMDJ20AHM6G from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 5000W peak pulse power at 10/1000μs, 22.2–24.5V breakdown voltage (VBR), and 32.4V clamping voltage (VC@IPP). It serves as primary overvoltage protection on DC power rails and I/O lines in automotive and industrial power supplies.
For engineers reviewing the 5.0SMDJ20AHM6G datasheet, 5.0SMDJ20AHM6G pinout, 5.0SMDJ20AHM6G application, or 5.0SMDJ20AHM6G equivalent, key selection criteria include unidirectional clamping performance, AEC-Q101 qualification, 175°C maximum junction temperature, and compatibility with automated SMT placement on 16mm × 16mm copper pads.
Technical Context
This TVS diode uses a stacked-die construction to achieve high surge capability in a compact SMC package. Its photo-glass passivated junction ensures stable VBR and low leakage (<5µA @ 20V), while fast response time (<1.0ps) enables effective suppression of ESD and lightning-induced transients.
The device operates across –55°C to +175°C and features a thermal resistance of 16°C/W (junction-to-lead) when mounted on a 16mm × 16mm PCB copper pad. Its unidirectional configuration provides forward conduction only during reverse overvoltage events, making it suitable for DC-biased signal and power line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 22.2–24.5V - defines minimum and maximum breakdown threshold under standardized test current |
| VWM | 20V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPP = 155A | 32.4V - clamped voltage during 5000W 10/1000μs surge, limiting downstream stress |
| IPP | 155A - peak impulse current supported at rated clamping voltage |
| TJ max | +175°C - enables operation in under-hood automotive and high-temperature industrial environments |
| RθJL | 16°C/W - low thermal resistance supports reliable power dissipation into PCB copper |
| αVBR | 0.099 mV/°C - temperature coefficient quantifies VBR drift over operating range |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional, cathode indicated by band. Weight: ~0.300g. Molding compound meets UL 94V-0; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path / low-side reference | Connected to system ground or negative rail; conducts during reverse overvoltage |
| Cathode | Protected line input | Connected to line under protection (e.g., 24V supply); blocks normal operation, clamps during surge |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 5000W peak pulse power | Withstands ISO 7637-2 Pulse 5a/b surges and IEC 61000-4-5 Level 4 transients without degradation |
| Fast response time <1.0ps | Clamps before transient energy couples into sensitive downstream ICs or regulators |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly processes |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
Use Scenario: 24V battery-fed ECUs exposed to load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary unidirectional TVS clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits line voltage to ≤32.4V during 155A surges, preventing damage to 36V-rated downstream components. | Use Scenario: 24V/48V industrial PLC power inputs subject to switching transients and EFT bursts. IC Role / Device Role / Timing Role: Standalone overvoltage protector on main DC bus, coordinated with fuse and MOV. Use Value: Provides sub-nanosecond response and 5000W surge handling without derating at 75°C ambient. |
| Telecom Interface Protection | Motor Drive Control Signal Line |
Use Scenario: RS-485/RS-232 data lines in outdoor base stations with induced lightning surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), absorbing residual energy. Use Value: Clamps to 32.4V within 1ps, protecting 5V-tolerant transceivers without adding capacitance-induced signal distortion. | Use Scenario: PWM gate drive lines in BLDC motor controllers subjected to inductive kickback. IC Role / Device Role / Timing Role: Localized clamp at MOSFET gate driver output to suppress VDS overshoot. Use Value: Enables use of lower-voltage gate drivers by limiting transient spikes to safe levels below 36V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | Lower peak power (600W), same DO-214AA package, VC = 32.4V but IPP = 18.5A | Not suitable for ISO 7637-2 load dump; limited to low-energy ESD/EFT | Select 5.0SMDJ20AHM6G where 5000W surge immunity is required |
| SMCJ20A | Same DO-214AB package and 5000W rating, but VBR min = 22.2V, VC = 32.4V - identical electrical specs | Functionally interchangeable; differs only in manufacturer branding and traceability | 5.0SMDJ20AHM6G and SMCJ20A are electrically equivalent with identical clamping and thermal behavior |
Compared with SMBJ20A and SMCJ20A, the 5.0SMDJ20AHM6G delivers full 5000W surge capability like SMCJ20A but exceeds SMBJ20A by >270% in peak current handling, while maintaining identical VC and thermal resistance-making it optimal for automotive and high-reliability industrial designs.
Availability
5.0SMDJ20AHM6G is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for 5.0SMDJ20AHM6G 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, serving global automotive, industrial, and consumer markets since 1979.
The 5.0SMDJxxAH series is part of TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-energy transient suppression in harsh-environment DC power systems where reliability and surge margin are critical.
FAQ
What is the clamping voltage of the 5.0SMDJ20AHM6G under maximum surge conditions?
The 5.0SMDJ20AHM6G has a maximum clamping voltage (VC) of 32.4V at 155A peak pulse current (IPP), measured using the 10/1000μs waveform. This value ensures protected circuits remain below 36V absolute maximum ratings during worst-case transients. The 5.0SMDJ20AHM6G maintains this clamping performance across its full operating temperature range of –55°C to +175°C.
Is the 5.0SMDJ20AHM6G suitable for automotive applications?
Yes, the 5.0SMDJ20AHM6G is AEC-Q101 qualified and designed for automotive use, including engine control units, body electronics, and ADAS power rails. Its 175°C maximum junction temperature, robust moisture resistance (MSL Level 1), and ability to withstand ISO 7637-2 load dump pulses make it appropriate for under-hood and chassis-mounted systems. The 5.0SMDJ20AHM6G meets all stress-test requirements defined in the AEC-Q101 standard.
What is the marking code for the 5.0SMDJ20AHM6G?
Per the manufacturer's datasheet, the 5.0SMDJ20AHM6G is marked "5PEW" on the device body. This 4-character code identifies the specific 20V variant within the 5.0SMDJxxAH family and is visible on the cathode-banded side of the DO-214AB (SMC) package. The "G" suffix in the full part number indicates green molding compound per RoHS and halogen-free compliance.
How does the thermal performance of the 5.0SMDJ20AHM6G compare to similar TVS diodes?
The 5.0SMDJ20AHM6G achieves a junction-to-lead thermal resistance (RθJL) of 16°C/W when mounted on a 16mm × 16mm copper pad-matching industry-leading SMC-package TVS devices. Its RθJA of 61°C/W reflects efficient heat spreading via PCB copper, enabling sustained operation at 75°C ambient without derating. This thermal profile is superior to smaller SMB packages and aligns with SMCJ20A-level performance. The 5.0SMDJ20AHM6G leverages stacked-die construction to maintain this performance at 5000W rating.
Can the 5.0SMDJ20AHM6G be used in bidirectional configurations?
No, the 5.0SMDJ20AHM6G is a unidirectional TVS diode and must be used with correct polarity-cathode toward the protected line. For bidirectional protection, two 5.0SMDJ20AHM6G devices may be connected anode-to-anode, but this is not recommended due to mismatched VBR tolerance and increased board space. Dedicated bidirectional parts such as 5.0SMDJ20CAHM6G are specified for AC or floating-line applications. The 5.0SMDJ20AHM6G datasheet explicitly defines it as unidirectional only.
5.0SMDJ20AHM6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 5.0SMDJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 155A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
5.0SMDJ20AHM6G FAQ
1.How can I place an order for 5.0SMDJ20AHM6G through Aetrix?
Please submit a Request for Quotation (RFQ) for 5.0SMDJ20AHM6G 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 5.0SMDJ20AHM6G reliable?
The price and inventory of 5.0SMDJ20AHM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5.0SMDJ20AHM6G is usually 5 days.
3.What payment methods are accepted for 5.0SMDJ20AHM6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5.0SMDJ20AHM6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5.0SMDJ20AHM6G?
5.0SMDJ20AHM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5.0SMDJ20AHM6G 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 5.0SMDJ20AHM6G?
For technical support, including 5.0SMDJ20AHM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5.0SMDJ20AHM6G requirements.
6.How does Aetrix verify that 5.0SMDJ20AHM6G is sourced from the original manufacturer or authorized distributors?
All 5.0SMDJ20AHM6G 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 5.0SMDJ20AHM6G meets industry standards.
7.What is the process for return or replacement of 5.0SMDJ20AHM6G?
All 5.0SMDJ20AHM6G units undergo pre-shipment inspection (PSI). If there is an issue with 5.0SMDJ20AHM6G, 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 5.0SMDJ20AHM6G part is unused and in its original packaging.
Return procedure for 5.0SMDJ20AHM6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5.0SMDJ20AHM6G Tags
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