My Inquiry
My Account
Taiwan Semiconductor Corporation SMDJ100AH
- Part No.:
- SMDJ100AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ100AH.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,308
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMDJ100AH from Taiwan Semiconductor is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 100V working stand-off voltage (VWM), 111–123V breakdown voltage (VBR), and 162V maximum clamping voltage (VC) at 18.5A peak pulse current - designed for automotive-grade ESD and load-switching surge protection in power supply rails and I/O lines.
For engineers reviewing the SMDJ100AH datasheet, SMDJ100AH pinout, SMDJ100AH application, or SMDJ100AH equivalent, key selection criteria include its AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, 1.0ps typical response time, 175°C max junction temperature, and unidirectional configuration confirmed for SMDJ100AH (not bidirectional - no CAH suffix).
Technical Context
The SMDJ100AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 111–123V breakdown range at 1mA test current. It clamps transients to ≤162V at 18.5A (10/1000μs waveform), delivering 3000W peak pulse power with <1.0ps response and glass-passivated junction for reliability.
Thermally, it features 75°C/W junction-to-ambient and 15°C/W junction-to-lead resistance, enabling sustained operation up to 175°C junction temperature. Its DO-214AB (SMC) package supports automated placement and meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 111 / 123 V @ 1 mA - guaranteed avalanche initiation range under standardized test conditions |
| VC @ IPPM | 162 V @ 18.5 A - clamped voltage during 10/1000μs transient, defining protected circuit voltage ceiling |
| PPK | 3000 W - peak pulse power handling per single non-repetitive event per JEDEC standard |
| TJ max | +175 °C - maximum allowable junction temperature, supporting under-hood automotive use |
| Response time | <1.0 ps - enables suppression of fast-rising ESD and lightning-induced transients |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 7.11 × 6.22 mm footprint and matte tin leads |
Pinout & Package
DO-214AB (SMC) package: cathode-banded end denotes cathode terminal; anode is opposite end. Matte tin-plated leads meet J-STD-002 solderability; polarity marked on body per standard diode convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode (non-banded end) | Reference/ground terminal | Typically tied to system ground or low-impedance return path for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements including HTOL, TC, HAST, and UHST |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupled noise) |
| Glass passivated junction | Enhances long-term stability and leakage performance vs. epoxy-passivated alternatives |
| Fast 1.0ps response | Enables protection against sub-nanosecond ESD events per IEC 61000-4-2 Level 4 (15 kV air / 8 kV contact) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly processes |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load-dump transients and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges above 100V. Use Value: Limits rail voltage to ≤162V during 3000W ISO 7637-2 Pulse 5a events, preventing damage to downstream DC-DC converters and microcontrollers. | Use Scenario: Shielding digital input modules from field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb coupling noise and switching spikes. Use Value: Maintains signal integrity by suppressing >1kV transients within 1ps, meeting IEC 61000-4-4 Level 4 immunity requirements. |
| Telecom DC Power Feeds | Consumer Equipment AC/DC Adapter Outputs |
Use Scenario: Safeguarding PoE-powered equipment front-ends from Ethernet cable-coupled surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48V DC feed before DC-DC regulation stage. Use Value: Clamps 10/1000μs transients to 162V at 18.5A, preserving IEEE 802.3af/at compliance and preventing latch-up in PMICs. | Use Scenario: Adding secondary surge margin to 12V/19V outputs of wall adapters used in laptops and monitors. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output to suppress residual switching noise and ESD ingress. Use Value: Delivers 3000W pulse rating without derating at +85°C ambient, ensuring robustness across global commercial temperature ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC100A | Same 100V VWM, but lower 1500W PPK and higher 200V VC @ 12.5A; TO-220AC package | Requires through-hole mounting and heatsinking; unsuitable for high-density SMT designs | Select only if board space allows TO-220 and thermal mass supports lower peak power |
| SMCJ100A | Identical DO-214AB package, same 100V VWM, but 1500W PPK and 170V VC @ 11.5A | Limited to lower-energy transients; not rated for ISO 7637-2 Pulse 5a | Choose when cost sensitivity outweighs automotive surge margin requirements |
Compared with SAC100A and SMCJ100A, the SMDJ100AH delivers 100% higher peak power (3000W), 11% lower clamping voltage (162V vs. 170–200V), and AEC-Q101/ISO 7637-2 certification - making it the only option qualified for under-hood automotive power rail protection without layout or thermal redesign.
Availability
SMDJ100AH is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMDJ100AH 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 SMDJ series is part of TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-energy transient suppression in harsh environments - emphasizing robustness, repeatable clamping, and zero degradation after repeated surge events.
FAQ
Is SMDJ100AH unidirectional or bidirectional?
The SMDJ100AH is unidirectional, as confirmed by its "AH" suffix (not "CAH") and absence of bidirectional electrical characteristics in its datasheet table. Its marking code "PGZ" and cathode band indicate polarity-sensitive placement - reverse connection would prevent proper clamping. The SMDJ100AH must be installed with cathode toward the protected line and anode to ground.
What is the forward voltage drop of SMDJ100AH at 100A?
The forward voltage drop of SMDJ100AH is 5.0 V at 100A, as explicitly specified in the Absolute Maximum Ratings table for "SMDJ100AH Devices for bipolar applications" - distinct from the 3.5 V VF of lower-voltage SMDJ10AH–SMDJ90AH variants. This value applies only during forward conduction, such as during fault conditions or miswiring.
Does SMDJ100AH meet automotive qualification standards?
Yes, the SMDJ100AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements - verified per Taiwan Semiconductor's official documentation. Its 175°C maximum junction temperature, glass-passivated junction, and moisture sensitivity level 1 further support automotive under-hood deployment.
What is the clamping voltage of SMDJ100AH at its rated peak pulse current?
The clamping voltage of SMDJ100AH is 162 V at 18.5 A peak pulse current (IPPM), measured using the standard 10/1000 μs double-exponential waveform. This value is guaranteed across temperature and ensures protected circuits remain below critical voltage thresholds during surge events.
Can SMDJ100AH replace SMCJ100A in existing designs?
No direct replacement: while both use DO-214AB (SMC) packaging, the SMDJ100AH has 3000W PPK and 162V VC, whereas SMCJ100A offers only 1500W PPK and 170V VC. Substituting SMDJ100AH may improve surge margin but requires validation of PCB thermal relief and layout compatibility with its higher energy dissipation.
SMDJ100AH 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 18.5A
- 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)
SMDJ100AH FAQ
1.How can I place an order for SMDJ100AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ100AH 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 SMDJ100AH reliable?
The price and inventory of SMDJ100AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ100AH is usually 5 days.
3.What payment methods are accepted for SMDJ100AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ100AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ100AH?
SMDJ100AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ100AH 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 SMDJ100AH?
For technical support, including SMDJ100AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ100AH requirements.
6.How does Aetrix verify that SMDJ100AH is sourced from the original manufacturer or authorized distributors?
All SMDJ100AH 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 SMDJ100AH meets industry standards.
7.What is the process for return or replacement of SMDJ100AH?
All SMDJ100AH units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ100AH, 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 SMDJ100AH part is unused and in its original packaging.
Return procedure for SMDJ100AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDJ100AH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
