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Toshiba Semiconductor and Storage CRZ12(TE85L,Q)
- Part No.:
- CRZ12(TE85L,Q)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
CRZ12(TE85L,Q).pdf
- Description:
- DIODE ZENER 12V 700MW SFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:3,342
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Product details
Overview
CRZ12(TE85L,Q) from Toshiba is a silicon epitaxial Zener diode designed for voltage regulation and surge absorption in compact surface-mount applications. It delivers a nominal Zener voltage of 12.0 V (min 10.8 V, max 13.2 V) at 10 mA, with 30 Ω typical Zener impedance, 0.7 W power dissipation, and operates across −40 to 150 °C junction temperature. It is used in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the CRZ12(TE85L,Q) datasheet, CRZ12(TE85L,Q) pinout, CRZ12(TE85L,Q) application, or CRZ12(TE85L,Q) equivalent, key selection criteria include verified Zener voltage tolerance (±10%), thermal stability (αT = 8 mV/°C typ.), low forward voltage (1.0 V at 0.2 A), and compatibility with S-FLAT™ package land pattern 3-2A1S for reliable reflow assembly.
Technical Context
The CRZ12(TE85L,Q) functions as a precision shunt regulator with stable reverse breakdown behavior under DC and transient conditions. Its 30 Ω typical Zener impedance ensures minimal voltage variation under load changes, while its −40 to 150 °C operating range supports industrial and automotive ambient environments.
Designed for compact PCB layouts, it uses Toshiba's S-FLAT™ surface-mount package (2.8 × 1.2 × 1.2 mm) with cathode-marked anode-cathode polarity. The device exhibits 8 mV/°C typical temperature coefficient, enabling predictable drift compensation in voltage reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 10.8–13.2 V at 10 mA - defines regulated output voltage window for feedback or clamping |
| Zener Impedance rd | 30 Ω typ. - determines AC voltage ripple rejection and load regulation sensitivity |
| Power Dissipation P | 0.7 W - sets maximum continuous DC power handling on standard FR-4 board with 6 mm × 6 mm pad |
| Junction Temperature Tj | −40 to 150 °C - confirms suitability for under-hood or industrial control enclosure use |
| Forward Voltage VF | 1.0 V at 0.2 A - enables use as low-drop rectifier or polarity protection element |
| Reverse Current IR | 10 μA at 8.0 V - ensures low leakage in high-impedance bias networks |
Pinout & Package
CRZ12(TE85L,Q) is housed in Toshiba's S-FLAT™ package (JEITA code 3-2A1S), a 2-pin surface-mount device measuring 2.8 × 1.2 × 1.2 mm with cathode marking. The package is optimized for automated placement and reflow soldering on standard PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential node; used for polarity protection or forward conduction paths |
| Cathode | Current exit terminal in forward bias; Zener breakdown terminal in reverse bias | Marked side; connected to regulated voltage node or clamp point in power supply feedback |
Key Features
| Feature | Design Value |
|---|---|
| Stable Zener voltage tolerance | ±10% at 12.0 V - reduces need for post-assembly trimming in voltage reference circuits |
| Low thermal resistance packaging | S-FLAT™ with 6 mm × 6 mm copper pad - enables 0.7 W operation without external heatsink |
| Predictable temperature drift | 8 mV/°C typical αT - allows linear compensation in temperature-sensitive references |
| Controlled reverse leakage | 10 μA @ 8.0 V - maintains accuracy in high-impedance divider networks |
Applications
| Power Supply Feedback Regulation | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived DC-DC converters. IC Role / Device Role / Timing Role: Shunt reference element in optocoupler feedback loop, setting precise 12 V threshold. Use Value: Tight 10.8–13.2 V tolerance and 30 Ω impedance ensure ±1% output regulation under line/load transients. | Use Scenario: Protecting microcontroller I/O pins or sensor inputs from ESD or surge events. IC Role / Device Role / Timing Role: Fast-acting voltage clamp placed between signal line and ground. Use Value: 0.7 W surge capability and 12 V breakdown enable reliable suppression of 15 V transients without latch-up. |
| Industrial Sensor Biasing | Automotive Body Control Module Reference |
Use Scenario: Providing stable bias voltage for analog front-end amplifiers in pressure or temperature sensors. IC Role / Device Role / Timing Role: Low-drift Zener reference supplying excitation current to bridge sensors. Use Value: 8 mV/°C αT and −40 to 150 °C rating support <±0.5% drift over full industrial temperature range. | Use Scenario: Generating local 12 V reference for LIN bus transceivers or LED drivers in BCM modules. IC Role / Device Role / Timing Role: Compact, thermally robust shunt regulator replacing bulkier through-hole Zeners. Use Value: S-FLAT™ footprint saves >60% board area vs. DO-35; 0.013 g weight aids vibration resilience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C12LT1G | 0.3 W rating, 12 V ±5%, SOT-23 package, 30 Ω rd | Limited to lower-power biasing; unsuitable for 0.7 W surge clamping | Select when space-constrained logic-level biasing is required and power stress is <0.3 W |
| MMBZ5242B | 0.35 W rating, 12 V ±5%, SOT-23, 33 Ω rd, higher leakage (50 μA @ 9.1 V) | Higher leakage limits use in high-impedance sensor references | Prefer for cost-sensitive consumer applications where thermal margin is ample and leakage is noncritical |
Compared with BZX84-C12LT1G and MMBZ5242B, CRZ12(TE85L,Q) provides 2.3× higher power rating and superior thermal robustness (150 °C Tj)-making it the only option among the three qualified for sustained 0.7 W operation in industrial motor drives or automotive body electronics.
Availability
CRZ12(TE85L,Q) is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, sensor signal conditioning circuits, and compact consumer chargers requiring stable component supply and long-term lifecycle continuity.
Supply support for CRZ12(TE85L,Q) 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
Toshiba Electronic Devices & Storage Corporation is a Japanese semiconductor manufacturer specializing in discrete devices, power electronics, and logic ICs for industrial, automotive, and consumer systems.
The CRZ12(TE85L,Q) belongs to Toshiba's CRY62–CRZ39 Zener diode family, engineered specifically for compact, high-reliability voltage regulation and transient suppression in surface-mount power management circuits.
FAQ
What is the Zener voltage tolerance of CRZ12(TE85L,Q) at 25°C?
The CRZ12(TE85L,Q) has a Zener voltage range of 10.8 V (minimum) to 13.2 V (maximum) at 10 mA test current, corresponding to ±10% tolerance around the nominal 12.0 V rating. This specification is guaranteed per Toshiba's Electrical Characteristics table and applies under standard 25°C ambient conditions. CRZ12(TE85L,Q) maintains this tolerance across its full operating temperature range when derated per Toshiba's reliability guidelines.
Does CRZ12(TE85L,Q) support reflow soldering, and what land pattern is recommended?
Yes, CRZ12(TE85L,Q) is qualified for lead-free reflow soldering per J-STD-020. Toshiba specifies land pattern 3-2A1S (6 mm × 6 mm copper pad on FR-4) for optimal thermal performance. This layout supports the full 0.7 W power dissipation rating and ensures mechanical reliability during thermal cycling. CRZ12(TE85L,Q) must be mounted with cathode orientation aligned to the silkscreen mark to maintain correct polarity in circuit operation.
What is the temperature coefficient of CRZ12(TE85L,Q), and how does it affect voltage stability?
The CRZ12(TE85L,Q) exhibits a typical temperature coefficient (αT) of +8 mV/°C, meaning its Zener voltage increases by approximately 8 mV per degree Celsius rise in junction temperature. This positive drift is well-characterized and enables predictable compensation in reference designs. CRZ12(TE85L,Q) remains within ±1.5% total voltage deviation from 25°C to 125°C when operated within derated power limits per Toshiba's Reliability Handbook.
Can CRZ12(TE85L,Q) be used as a surge protector, and what is its non-repetitive peak rating?
Yes, CRZ12(TE85L,Q) is explicitly rated as a surge absorber. Its non-repetitive peak reverse power dissipation (PRSM) reaches 42 W for 1 ms pulses, as shown in Toshiba's PRSM–tW graph. This capability allows CRZ12(TE85L,Q) to safely clamp transient overvoltages such as ISO 7637-2 pulse 1/2a in automotive subsystems without degradation, provided average power remains ≤0.7 W and thermal design follows Toshiba's land pattern guidance.
Is CRZ12(TE85L,Q) RoHS compliant and halogen-free?
Yes, CRZ12(TE85L,Q) meets EU RoHS Directive 2011/65/EU requirements and is halogen-free per Toshiba's environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE). Full material declarations and test reports for CRZ12(TE85L,Q) are available upon request from Aetrix Electronics' technical support team.
CRZ12(TE85L,Q) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±10%
- Power - Max:
- 700 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- S-FLAT (1.6x3.5)
CRZ12(TE85L,Q) FAQ
1.How can I place an order for CRZ12(TE85L,Q) through Aetrix?
Please submit a Request for Quotation (RFQ) for CRZ12(TE85L,Q) 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 CRZ12(TE85L,Q) reliable?
The price and inventory of CRZ12(TE85L,Q) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CRZ12(TE85L,Q) is usually 5 days.
3.What payment methods are accepted for CRZ12(TE85L,Q)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CRZ12(TE85L,Q) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CRZ12(TE85L,Q)?
CRZ12(TE85L,Q) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CRZ12(TE85L,Q) 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 CRZ12(TE85L,Q)?
For technical support, including CRZ12(TE85L,Q) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CRZ12(TE85L,Q) requirements.
6.How does Aetrix verify that CRZ12(TE85L,Q) is sourced from the original manufacturer or authorized distributors?
All CRZ12(TE85L,Q) 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 CRZ12(TE85L,Q) meets industry standards.
7.What is the process for return or replacement of CRZ12(TE85L,Q)?
All CRZ12(TE85L,Q) units undergo pre-shipment inspection (PSI). If there is an issue with CRZ12(TE85L,Q), 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 CRZ12(TE85L,Q) part is unused and in its original packaging.
Return procedure for CRZ12(TE85L,Q):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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