My Inquiry
My Account
Taiwan Semiconductor Corporation 1KSMB62CA
.jpg)
- Part No.:
- 1KSMB62CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
1KSMB62CA.pdf
- Description:
- TVS DIODE 53VWM 85VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,004
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1KSMB62CA from Taiwan Semiconductor is a bi-directional 1000W transient voltage suppressor (TVS) in DO-214AA (SMB) package, with breakdown voltage 58.9–65.1 V, stand-off voltage 53.0 V, and clamping voltage 85.0 V at 11.8 A peak pulse current. It delivers fast response (<1.0 ps), meets ISO 7637-2 Pulse 1/2a/2b/3a/3b, and is rated for automotive-grade surge protection in power supplies and adapters.
For engineers reviewing the 1KSMB62CA datasheet, 1KSMB62CA pinout, 1KSMB62CA application, or 1KSMB62CA equivalent, key selection criteria include bi-directional clamping capability, 1000W peak pulse power rating, 53.0 V working voltage, 85.0 V max clamping at 11.8 A, and DO-214AA surface-mount compatibility with automated placement.
Technical Context
The 1KSMB62CA uses a glass-passivated silicon junction to achieve stable bi-directional avalanche breakdown across ±58.9–65.1 V, enabling symmetrical transient suppression on AC or differential signal lines. Its thermal design supports 175°C maximum junction temperature and 20°C/W junction-to-lead resistance, ensuring reliability under repetitive surge stress.
It complies with ISO 7637-2 for automotive transients (Pulse 1, 2a, 2b, 3a, 3b) and is moisture-sensitivity level 1 per J-STD-020 - suitable for standard reflow without baking. The device exhibits <1.0 µA reverse leakage at 53.0 V and 85.0 V clamping at 11.8 A (10/1000 µs waveform).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 58.9 V / 65.1 V - defines symmetric avalanche onset threshold for bi-directional surge clamping |
| VWM | 53.0 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC@IPP | 85.0 V @ 11.8 A - clamped voltage during 10/1000 µs surge, limiting downstream circuit stress |
| PPPSM | 1000 W - peak pulse power handling capacity under standardized transient waveform |
| TJ max | 175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Package | DO-214AA (SMB) - surface-mount outline with 0.110 g mass, UL 94V-0 molding, matte tin leads |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking (bi-directional symmetry means no polarity-dependent orientation; band denotes terminal identification per marking diagram). Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche terminals | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency |
| Cathode Band Marking | Terminal identification marker | Visible band identifies one terminal per DO-214AA mechanical drawing; electrically redundant in CA devices |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling |
| Sub-1.0 ps response time | Clamps transients before sensitive downstream ICs experience overvoltage stress |
| ISO 7637-2 compliance | Validated for automotive load-dump and inductive-switching surge immunity (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Eliminates pre-bake requirement for SMT assembly, reducing manufacturing cost and cycle time |
Applications
| Automotive Infotainment Power Rails | Industrial AC-DC Adapter Inputs |
|---|---|
Use Scenario: Protecting USB-C PD and HDMI power delivery circuits from battery dump and alternator surges in head units. IC Role / Device Role / Timing Role: Bi-directional TVS placed across input rails to clamp ±60 V transients before DC-DC controllers. Use Value: 85.0 V clamping ensures MCU and PMIC inputs remain below absolute maximum ratings during ISO 7637-2 Pulse 2b events. | Use Scenario: Input-stage surge suppression in 24 V industrial switch-mode adapters exposed to lightning-induced line surges. IC Role / Device Role / Timing Role: Primary-line TVS between AC rectifier output and bulk capacitor, absorbing 1000 W pulses. Use Value: 1000 W PPPSM rating handles IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) without degradation. |
| Medical Imaging Equipment Interfaces | Smart Meter Communication Ports |
Use Scenario: Shielding LVDS and RS-485 links between CT scanner subsystems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bi-directional TVS on differential pairs to maintain signal integrity while suppressing ±8 kV contact ESD. Use Value: Low 1.0 µA leakage at 53.0 V prevents DC offset drift in precision analog front-ends. | Use Scenario: Protecting PLC and RF module supply pins in AMI smart meters subjected to grid switching transients. IC Role / Device Role / Timing Role: Secondary-side TVS on 3.3 V/5 V rails after isolation, clamping coupled surges from metering transformers. Use Value: DO-214AA footprint allows compact layout adjacent to isolated DC-DC converters without compromising creepage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA (Bourns) | VBR = 60.8–67.0 V; VC = 103 V @ 9.7 A; same DO-214AA package | Higher clamping voltage reduces margin for 60 V-rated downstream components | Select when higher surge repetition tolerance is needed; verify 103 V clamping aligns with system OV thresholds |
| P6SMB68CA (Littelfuse) | VBR = 64.6–71.4 V; VC = 92.0 V @ 10.9 A; identical SMB footprint | Higher VWM (58.1 V) allows use in 56 V systems where 1KSMB62CA's 53.0 V would be marginal | Prefer for 56 V nominal rails; confirm 92.0 V clamping satisfies downstream IC abs max ratings |
Compared with SMBJ64CA and P6SMB68CA, the 1KSMB62CA offers the lowest clamping voltage (85.0 V) among 60 V-class bi-directional SMB TVS diodes, maximizing safety margin for 60 V-rated power stages while maintaining full ISO 7637-2 compliance and level-1 moisture sensitivity.
Availability
1KSMB62CA is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial AC-DC adapters, and smart meter communication ports requiring stable component supply, RoHS-compliant packaging, and traceable sourcing.
Supply support for 1KSMB62CA 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-Q200 qualified product lines.
The 1KSMBxxCA series is designed specifically for high-reliability bi-directional transient suppression in automotive and industrial power interfaces, emphasizing ISO 7637-2 compliance, automated assembly readiness, and thermal robustness.
FAQ
What is the breakdown voltage range of the 1KSMB62CA?
The 1KSMB62CA has a guaranteed breakdown voltage range of 58.9 V to 65.1 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This symmetric bi-directional specification ensures consistent clamping performance regardless of transient polarity, making it suitable for AC-coupled or floating signal lines where polarity reversal occurs.
Does the 1KSMB62CA meet automotive surge standards?
Yes, the 1KSMB62CA meets ISO 7637-2 requirements for automotive electrical disturbances, including Pulse 1 (inductive load disconnect), Pulse 2a/2b (load dump), and Pulse 3a/3b (switching transients). Its 1000 W peak pulse power rating and sub-1.0 ps response time are validated under these waveforms, supporting AEC-Q200-aligned qualification testing.
What is the maximum clamping voltage of the 1KSMB62CA and at what current?
The 1KSMB62CA has a maximum clamping voltage of 85.0 V at 11.8 A peak pulse current (10/1000 µs waveform). This value is measured under standardized conditions and represents the upper limit of voltage seen by protected circuitry during worst-case surge events, directly informing system-level overvoltage margin analysis.
Is the 1KSMB62CA compatible with lead-free reflow processes?
Yes, the 1KSMB62CA features matte tin-plated leads compliant with J-STD-002 solderability requirements and is rated moisture sensitivity level 1 per J-STD-020. It supports standard Pb-free reflow profiles (e.g., JEDEC J-STD-020) without preconditioning or baking, simplifying high-volume SMT manufacturing.
How does the 1KSMB62CA differ from unidirectional variants like 1KSMB62A?
The 1KSMB62CA is bi-directional, with symmetrical breakdown in both polarities, while 1KSMB62A is unidirectional and requires correct cathode orientation. The CA version eliminates polarity concerns in AC or differential applications and replaces two unidirectional devices in some designs, though forward voltage drop (VF) specs do not apply to bi-directional operation.
1KSMB62CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- 1KSMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 11.8A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
1KSMB62CA FAQ
1.How can I place an order for 1KSMB62CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1KSMB62CA 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 1KSMB62CA reliable?
The price and inventory of 1KSMB62CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1KSMB62CA is usually 5 days.
3.What payment methods are accepted for 1KSMB62CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1KSMB62CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1KSMB62CA?
1KSMB62CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1KSMB62CA 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 1KSMB62CA?
For technical support, including 1KSMB62CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1KSMB62CA requirements.
6.How does Aetrix verify that 1KSMB62CA is sourced from the original manufacturer or authorized distributors?
All 1KSMB62CA 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 1KSMB62CA meets industry standards.
7.What is the process for return or replacement of 1KSMB62CA?
All 1KSMB62CA units undergo pre-shipment inspection (PSI). If there is an issue with 1KSMB62CA, 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 1KSMB62CA part is unused and in its original packaging.
Return procedure for 1KSMB62CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1KSMB62CA 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…
