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Taiwan Semiconductor Corporation S12KCHM6G
- Part No.:
- S12KCHM6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S12KCHM6G.pdf
- Description:
- DIODE GEN PURP 800V 12A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,813
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Product details
Overview
S12KCHM6G from Taiwan Semiconductor is a 12A, 800V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low 1.1V forward voltage at 12A, and 300A peak surge capability - deployed in high-efficiency AC/DC converters and industrial SMPS front-ends.
For engineers reviewing the S12KCHM6G datasheet, S12KCHM6G pinout, S12KCHM6G application, or S12KCHM6G equivalent, key selection criteria include VRRM = 800V, IF = 12A, TJ(max) = 150°C, RθJL = 9°C/W, and moisture sensitivity level 1 compliance for automated SMT assembly.
Technical Context
This single-die standard recovery rectifier operates with a maximum repetitive peak reverse voltage of 800V and supports continuous forward current up to 12A at TC = 75°C. Its glass-passivated chip junction ensures stable reverse leakage (<1 µA at 25°C, <250 µA at 125°C) and robust surge tolerance (300A, 8.3ms half-sine).
Thermal performance is defined by junction-to-lead resistance of 9°C/W and junction-to-ambient resistance of 44°C/W. The device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown |
| IF | 12 A - Continuous average forward current rating at case temperature TC = 75°C |
| IFSM | 300 A - Peak non-repetitive forward surge current (8.3ms half-sine), critical for inrush handling |
| VF @ 12A | ≤1.1 V - Forward voltage drop at rated current, directly impacts conduction loss in power stage |
| TJ(max) | +150 °C - Maximum allowable junction temperature, sets thermal derating limits |
| RθJL | 9 °C/W - Junction-to-lead thermal resistance, enables accurate heatsinkless PCB thermal design |
| MSL | Level 1 (per J-STD-020) - No floor life limitation; safe for standard reflow without dry-pack requirements |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads; polarity indicated by cathode band; weight ≈ 0.270 g; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to AC input or transformer secondary side; must handle full 12A RMS and 300A surge |
| Cathode (Lead 2) | Forward current exit / reverse voltage reference | Connected to output capacitor or DC bus; cathode band marks this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of reverse leakage and breakdown voltage under thermal cycling and humidity stress |
| Low VF (≤1.1 V @ 12A) | Reduces conduction losses by ~15% vs. comparable 1000V rectifiers, improving efficiency in 200–500W SMPS |
| High IFSM (300 A) | Withstands repeated cold-start surges in offline adapters without degradation, extending system reliability |
| MSL Level 1 | Eliminates bake-out and dry-pack logistics - compatible with standard SMT lines and J-STD-020-compliant reflow profiles |
| Halogen-free (IEC 61249-2-21) | Meets RoHS and environmental compliance mandates for export-grade industrial and lighting equipment |
Applications
| Industrial SMPS Front-End | LED Driver Input Rectification |
|---|---|
Use Scenario: High-density 300–600W server PSU using bridge or single-phase rectification with active PFC. IC Role / Device Role / Timing Role: Main AC input rectifier converting 85–265VAC to high-voltage DC bus. Use Value: 800V VRRM provides 2× safety margin over 400VDC bus; 12A IF supports >500W continuous operation with minimal thermal margin. | Use Scenario: Outdoor LED streetlight driver operating in wide ambient range (−40°C to +85°C). IC Role / Device Role / Timing Role: Input-stage rectifier in flyback or buck-boost topology. Use Value: MSL Level 1 and 150°C TJ(max) ensure reliability during outdoor thermal cycling and unattended operation. |
| Universal Input Adapter | Industrial Motor Drive Auxiliary Supply |
Use Scenario: Dual-range (100–240VAC) laptop adapter with compact SMC footprint. IC Role / Device Role / Timing Role: Primary-side rectifier in quasi-resonant flyback converter. Use Value: Low VF reduces heat generation in sealed enclosure; DO-214AB allows high-current routing on 2-layer PCBs. | Use Scenario: Auxiliary 24V supply in variable-frequency drive for HVAC compressors. IC Role / Device Role / Timing Role: Isolated auxiliary rectifier feeding control logic and gate drivers. Use Value: 300A IFSM handles motor startup transients; RθJL = 9°C/W enables direct lead-frame thermal coupling to metal-core PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1208D | VRRM = 800V, IF = 12A, VF = 1.15V (typ), RθJL = 10°C/W, DO-214AB | Higher VF increases conduction loss by ~50mW at 12A; slightly lower thermal efficiency | Preferred where STMicroelectronics qualification or automotive AEC-Q101 traceability is required |
| ON Semi MUR1280CT | VRRM = 800V, IF = 12A, VF = 1.25V (max), TO-220AC package, higher RθJA | Larger footprint and through-hole mounting; unsuitable for high-density SMT designs | Chosen when board-level mechanical robustness or legacy TO-220 layout reuse is prioritized over size and automation |
Compared with STTH1208D and MUR1280CT, S12KCHM6G offers the lowest VF among DO-214AB 800V rectifiers and best MSL rating - making it optimal for space-constrained, high-volume SMT production where thermal headroom and moisture resilience are critical.
Availability
S12KCHM6G is available at Aetrix Electronics and suitable for industrial SMPS, LED drivers, universal adapters, and motor drive auxiliary supplies requiring stable component supply, consistent parametric performance, and full J-STD-020 compliance.
Supply support for S12KCHM6G 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 industrial, computing, and consumer markets since 1979.
The S12GC–S12MC series was designed specifically for high-reliability, high-current AC/DC rectification in cost-sensitive yet thermally demanding applications - emphasizing manufacturability, MSL Level 1 compatibility, and consistent parametric binning across voltage grades.
FAQ
What is the marking code for S12KCHM6G?
The marking code printed on the S12KCHM6G device body is "S12KC", indicating its 800V VRRM rating within the S12GC–S12MC family. The "HM6G" suffix denotes tape-and-reel packaging (3,000 units per reel), green compound (G), and manufacturing date/lot traceability per TSC's internal coding system.
Does S12KCHM6G support lead-free reflow soldering?
Yes, S12KCHM6G features matte tin-plated leads qualified per J-STD-002 and is fully compatible with lead-free reflow profiles (peak temperature ≤260°C). Its MSL Level 1 rating eliminates pre-bake requirements, enabling direct placement into standard SMT lines without dry-pack intervention.
What is the reverse leakage current specification for S12KCHM6G at elevated temperature?
S12KCHM6G exhibits ≤250 µA reverse leakage current at TJ = 125°C and rated VR, per its electrical specifications. At TJ = 25°C, IR is ≤1 µA - confirming stable junction integrity across its full −55°C to +150°C operating range.
Can S12KCHM6G be used in parallel configurations for higher current handling?
No - S12KCHM6G is not characterized or recommended for parallel operation. Its forward voltage variation (±5% typical) and thermal coupling limitations in DO-214AB prevent balanced current sharing. For >12A applications, select higher-rated rectifiers (e.g., S20KCHM6G) or use discrete paralleled devices with external balancing resistors and thermal monitoring.
Is S12KCHM6G halogen-free and RoHS compliant?
Yes, S12KCHM6G is both RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, satisfying environmental requirements for CE-marked industrial and lighting equipment sold in EU and APAC markets.
S12KCHM6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 12 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 800 V
- Capacitance @ Vr, F:
- 78pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S12KCHM6G FAQ
1.How can I place an order for S12KCHM6G through Aetrix?
Please submit a Request for Quotation (RFQ) for S12KCHM6G 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 S12KCHM6G reliable?
The price and inventory of S12KCHM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12KCHM6G is usually 5 days.
3.What payment methods are accepted for S12KCHM6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12KCHM6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S12KCHM6G?
S12KCHM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S12KCHM6G 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 S12KCHM6G?
For technical support, including S12KCHM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12KCHM6G requirements.
6.How does Aetrix verify that S12KCHM6G is sourced from the original manufacturer or authorized distributors?
All S12KCHM6G 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 S12KCHM6G meets industry standards.
7.What is the process for return or replacement of S12KCHM6G?
All S12KCHM6G units undergo pre-shipment inspection (PSI). If there is an issue with S12KCHM6G, 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 S12KCHM6G part is unused and in its original packaging.
Return procedure for S12KCHM6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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