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Taiwan Semiconductor Corporation S12JCHR7G
- Part No.:
- S12JCHR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S12JCHR7G.pdf
- Description:
- DIODE GEN PURP 600V 12A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,275
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Product details
Overview
S12JCHR7G from Taiwan Semiconductor is a 12A, 600V glass-passivated surface-mount rectifier in DO-214AB (SMC) package, featuring low forward voltage drop (≤1.1 V at 12 A), high surge capability (300 A IFSM), and junction temperature rating up to +150°C; it serves as the main output rectifier in high-efficiency AC/DC adapters and offline SMPS.
For engineers reviewing the S12JCHR7G datasheet, S12JCHR7G pinout, S12JCHR7G application, or S12JCHR7G equivalent, key selection criteria include repetitive peak reverse voltage (600 V), thermal resistance (9°C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and DO-214AB mechanical compatibility with automated SMT lines.
Technical Context
This single-die standard recovery rectifier uses glass-passivated PN junction technology to achieve stable reverse blocking and low conduction loss under continuous 12 A DC load. Its 600 V VRRM rating targets universal-input offline converters operating with 400 VDC bus rails.
The device exhibits 78 pF junction capacitance at 4.0 V reverse bias and 1 µA max reverse leakage at 25°C - parameters critical for EMI filtering design and light-load efficiency optimization in flyback and forward topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports 400 VDC bus designs with ≥50% safety margin against line transients |
| IF | 12 A - rated average forward current defines continuous power handling in thermally constrained SMC packages |
| IFSM | 300 A - withstands 8.3 ms half-sine surges during cold-start or output short-circuit events |
| VF | ≤1.1 V @ 12 A, 25°C - directly determines conduction loss (13.2 W max) and heatsink sizing |
| RθJL | 9 °C/W - enables direct thermal coupling to PCB copper pour or heatsink for 12 A operation |
| IR | ≤1 µA @ 25°C - ensures minimal standby power loss in no-load adapter modes |
| CJ | 78 pF @ 1 MHz, 4 V - influences high-frequency switching noise and snubber design in 65–130 kHz SMPS |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to transformer secondary or switch node; carries full load current with minimal voltage drop |
| Cathode | Output terminal for forward conduction path | Connected to output capacitor and load; polarity marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability under humid environments and repeated thermal cycling without degradation |
| J-STD-020 Level 1 moisture sensitivity | Eliminates bake requirements prior to reflow, reducing manufacturing cost and process complexity |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for Class II insulated power supplies without external potting |
| RoHS and halogen-free (IEC 61249-2-21) | Complies with global environmental regulations and enables use in green-certified end equipment |
Applications
| AC/DC Adapters | Industrial SMPS |
|---|---|
Use Scenario: 65 W universal-input wall adapter for laptops and monitors operating from 90–264 VAC input. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary voltage to regulated DC output. Use Value: Low VF (≤1.1 V) reduces conduction loss by ~15% vs. legacy 1.3 V rectifiers, improving full-load efficiency to >89%. | Use Scenario: 200 W open-frame industrial power supply for PLC I/O modules with wide ambient temperature range. IC Role / Device Role / Timing Role: Primary-side rectifier in dual-switch forward converter handling 12 A continuous output current. Use Value: RθJL = 9°C/W allows direct PCB copper thermal spreading, eliminating discrete heatsink and saving 8 mm² board area. |
| LED Drivers | Telecom Power Converters |
Use Scenario: Constant-current LED driver for outdoor street lighting with 300 VDC bus and 12 A output. IC Role / Device Role / Timing Role: Secondary-side synchronous rectification replacement in quasi-resonant flyback topology. Use Value: 300 A IFSM rating sustains repeated lightning-induced surge events without failure, meeting IEC 61000-4-5 Level 3. | Use Scenario: -48 V telecom rectifier module requiring high-reliability 12 A output with extended lifetime. IC Role / Device Role / Timing Role: Bulk rectifier in active-clamp forward converter operating at 100 kHz switching frequency. Use Value: 78 pF junction capacitance minimizes switching loss and EMI generation compared to higher-CJ alternatives, easing EMC filter design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH12S06 | 600 V VRRM, 12 A IF, but VF = 1.7 V @ 12 A; TO-220AC package | Requires heatsink mounting and through-hole assembly; unsuitable for high-density SMT layouts | Select when higher surge robustness is needed and board space permits discrete heatsinking |
| ON Semi MUR1260CT | 600 V VRRM, dual common-cathode configuration; VF = 1.25 V @ 12 A; TO-220AB package | Provides dual-diode functionality for center-tapped or synchronous rectification; not single-die equivalent | Choose only if dual-diode topology is required; not a drop-in replacement for S12JCHR7G |
Compared with STTH12S06 and MUR1260CT, the S12JCHR7G delivers lower conduction loss in compact SMT form factor, eliminates heatsink dependency via RθJL = 9°C/W, and supports automated manufacturing without pre-bake - making it optimal for cost-sensitive, space-constrained adapter and lighting designs.
Availability
S12JCHR7G is available at Aetrix Electronics and suitable for AC/DC adapters, industrial SMPS, and LED drivers requiring stable component supply with consistent parametric performance across production lots.
Supply support for S12JCHR7G 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 power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.
The S12GC–S12MC family was designed specifically for high-reliability, high-current surface-mount rectification in universal-input offline power supplies - balancing low VF, robust surge immunity, and JEDEC-compliant manufacturability.
FAQ
What is the maximum junction temperature rating for S12JCHR7G?
The S12JCHR7G has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table in the official TSC datasheet D2102. This rating enables reliable operation in enclosed, convection-cooled adapters and industrial power supplies where ambient temperatures reach +70°C. Derating curves confirm 12 A continuous current is sustainable up to +110°C case temperature, provided thermal design meets RθJL ≤ 9°C/W.
Does S12JCHR7G meet RoHS and halogen-free requirements?
Yes, the S12JCHR7G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the TSC datasheet D2102. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This makes S12JCHR7G suitable for export to EU, Japan, and China RoHS-regulated markets without material declaration exceptions.
What is the marking code for S12JCHR7G on the device body?
The S12JCHR7G is marked on the device body as "S12JC", per the ordering information and marking diagram in TSC's D2102 datasheet. The "R7G" suffix denotes tape-and-reel packaging (7-inch reel) and green compound (G), while "S12JC" identifies the 600 V variant within the S12GC–S12MC family. No additional date or factory codes are part of the base marking for this orderable part.
Is S12JCHR7G suitable for use in automotive applications?
No, the S12JCHR7G is not qualified for automotive applications. TSC's datasheet D2102 explicitly states: "The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications." It lacks AEC-Q101 qualification, automotive-grade temperature screening (-40°C to +125°C extended range), and zero-defect manufacturing controls required for automotive power systems.
What is the moisture sensitivity level (MSL) of S12JCHR7G?
The S12JCHR7G has a moisture sensitivity level of J-STD-020 Level 1, meaning it may be stored indefinitely at ≤30°C/60% RH without baking prior to reflow soldering. This eliminates pre-reflow bake cycles in manufacturing, reduces floor-life management overhead, and supports just-in-time SMT line feeding - a key advantage over Level 3+ rectifiers that require strict humidity-controlled storage and time-limited assembly windows.
S12JCHR7G 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):
- 600 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 @ 600 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
S12JCHR7G FAQ
1.How can I place an order for S12JCHR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S12JCHR7G 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 S12JCHR7G reliable?
The price and inventory of S12JCHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12JCHR7G is usually 5 days.
3.What payment methods are accepted for S12JCHR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12JCHR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S12JCHR7G?
S12JCHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S12JCHR7G 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 S12JCHR7G?
For technical support, including S12JCHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12JCHR7G requirements.
6.How does Aetrix verify that S12JCHR7G is sourced from the original manufacturer or authorized distributors?
All S12JCHR7G 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 S12JCHR7G meets industry standards.
7.What is the process for return or replacement of S12JCHR7G?
All S12JCHR7G units undergo pre-shipment inspection (PSI). If there is an issue with S12JCHR7G, 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 S12JCHR7G part is unused and in its original packaging.
Return procedure for S12JCHR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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