MHZ2320BJ - Hard Drive TOSHIBA - Free user manual and instructions

Product Type	2.5-inch Hard Disk Drive
Brand	Toshiba
Model	MHZ2320BJ
Interface	SATA (Serial ATA) compliant with Revision 2.5/2.6
Form Factor	2.5-inch
Mounting Screw	M3, tightening torque 0.49 N·m (5 kgf·cm)
Mounting Orientation	Any direction
Ambient Temperature	As per Section 1.4; DE cover temperature must not exceed 60°C
Breather Hole	Must not be blocked; locate as per Figure 3.3
Handling Precautions	Use ESD wrist strap and mat; do not drop, stack, or press cover
Service Area	As shown in Figure 3.5
Connector	SATA interface with power and signal segments
Connection Force	Do not exceed 10 kgf when mating connectors
Latch Operation	Release latch before connecting/removing cable
Surface Temperature Measurement Points	See Figure 3.4 and Table 3.1
DE Cover Temperature Limit	60°C maximum
Recommended Driver	Low impact electric driver
ESD Protection	Required
Shock Absorbing Mat	Recommended
Repairability	Not user-serviceable; contact professional service
Spare Parts	Not available as spare; contact Toshiba
Maintenance	Ensure airflow; keep breather hole free
Safety	Avoid strong magnetic fields; do not press cover
Additional Notes	Refer to Fujitsu 2.5-inch HDD Integration Guidance for mounting details

Frequently Asked Questions - MHZ2320BJ TOSHIBA

What is the recommended tightening torque for the mounting screws?

The recommended tightening torque is 0.49 N·m (5 kgf·cm) for M3 screws.

Can the hard drive be installed in any orientation?

Yes, the drive can be mounted in any direction without performance issues.

What is the maximum allowable temperature on the DE cover?

The DE cover temperature must not exceed 60°C to ensure reliable operation.

What handling precautions should be taken?

Always use an ESD wrist strap and mat, avoid dropping, stacking, or pressing the cover, and keep away from strong magnetic fields.

What should I do with the breather hole?

The breather hole must not be blocked during mounting; refer to Figure 3.3 for its location.

What interface does this drive use?

The drive uses a SATA interface compliant with Serial ATA Revision 2.5/2.6.

What is the maximum force when connecting the SATA cable?

Do not apply more than 10 kgf of force when mating the connectors.

How should I connect or disconnect the SATA cable?

Always release the SATA interface latch before connecting or removing the cable to avoid damage.

Is the hard drive user-serviceable?

No, the drive contains no user-serviceable parts. Professional repair is recommended for any issues.

What type of screwdriver is recommended for installation?

Use a low impact electric driver with an M3 screw and adjustable torque to prevent damage.

USER MANUAL MHZ2320BJ TOSHIBA

CHAPTER 3 Installation Conditions

3.1 Dimensions
3.2 Mounting
3.3 Connections with Host System

This chapter gives the external dimensions, installation conditions, surface temperature conditions, cable connections, and switch settings of the hard disk drives.

3.1 Dimensions

Figure 3.1 illustrates the dimensions of the disk drive. All dimensions are in mm.

*1 The PCA and connectors are not included in these dimensions.
*2 Dimension from the center of the user tap to the base of the connector pins
*3 Length of the connector pins
*4 Dimension from the outer edge of the user tap to the center of the connector pins
*5 Dimension from the outer edge of the user tap to the innermost edge of the connector pins

Figure 3.1 Dimensions

3.2 Mounting

For information on mounting, see the "FUJITSU 2.5-INCH HDD INTEGRATION GUIDANCE (C141-E144)."

(1) Orientation

The disk drives can be mounted in any direction.

(2) Frame

The MR head bias of the HDD disk enclosure (DE) is zero. The mounting frame is connected to Signal Ground (SG).

IMPORTANT

Use M3 screw for the mounting screw and the screw length should satisfy the specification in Figure 3.2.

The tightening torque must be 0.49N·m (5kgf·cm).

When attaching the HDD to the system frame, do not allow the system frame to touch parts (cover and base) other than parts to which the HDD is attached.

(3) Limitation of mounting

Note) These dimensions are recommended values; if it is not possible to satisfy them, contact us.

Figure 3.2 Mounting frame structure

IMPORTANT

Because of breather hole mounted to the HDD, do not allow this to close during mounting.

Locating of breather hole is shown as Figure 3.3.

For breather hole of Figure 3.3, at least, do not allow its around 3 to block.

Figure 3.3 Location of breather

(4) Ambient temperature

The temperature conditions for a disk drive mounted in a cabinet refer to the ambient temperature at a point 3 cm from the disk drive. The ambient temperature must satisfy the temperature conditions described in Section 1.4, and the airflow must be considered to prevent the DE surface cover temperature from exceeding 60 °C.

Provide air circulation in the cabinet such that the PCA side, in particular, receives sufficient cooling. To check the cooling efficiency, measure the surface cover temperatures of the DE. Regardless of the ambient temperature, this surface cover temperature must meet the standards listed in Table 3.1. Figure 3.4 shows the temperature measurement point.

Technical line drawing of a rectangular electronic device with mounting holes and a labeled component (no text or symbols beyond label)

Figure 3.4 Surface cover temperature measurement points

Table 3.1 Surface temperature measurement points and standard values

No.	Measurement	point
1	DE	cover 0 °C max

Temperature

(5) Service area

Figure 3.5 shows how the drive must be accessed (service areas) during and after installation.

Figure 3.5 Service area

CAUTION

Data corruption: Avoid mounting the disk drive near strong magnetic sources such as loud speakers. Ensure that the disk drive is not affected by external magnetic fields.

Damage: Do not press the cover of the disk drive. Pressing it too hard, the cover and the spindle motor contact, which may cause damage to the disk drive.

Static: When handling the device, disconnect the body ground (500 kΩ or greater). Do not touch the printed circuit board, but hold it by the edges.

(6) Handling cautions

Please keep the following cautions, and handle the HDD under the safety environment.

- General notes

Line drawing of a hand gripping a textured surface with a chain (no text or symbols)

Wrist strap
Use the Wrist strap.

ESD mat

Line drawing of a simple table setup with a flat top and a side arm (no text or symbols)

Shock absorbing mat
Place the shock absorbing mat on the operation table, and place ESD mat on it.

Pure mechanical component diagram without any text, numbers, or symbols

Do not hit HDD each other.

Line drawing of hands using a tool to cut or mark a stack of stacked blocks (no text or symbols)

Do not stack when carrying.

Technical line drawing of a mechanical assembly with no visible text or symbols

Do not place HDD vertically to avoid falling down.

Line drawing of a hand using a tool to cut a piece of paper (no text or symbols present)

Do not drop.
Figure 3.6 Handling cautions

- Installation

(1) Please use the driver of a low impact when you use an electric driver. HDD is occasionally damaged by the impact of the driver.

(2) Please observe the tightening torque of the screw strictly. M3 …… 0.49N • m (5 kgf • cm).

- Recommended equipments

Contents		Model	Maker
	Wrist strap JX-1	200-3056-8 SUMITOMO 3M ESD
	ESD mat SKY-8A (Color Seiden Mat) Achilles
Shock	Low shock driver SS-6	500 HIOS

3.3 Connections with Host System

3.3.1 Device connector

The disk drive has the SATA interface connectors listed below for connecting external devices. Figure 3.7 shows the locations of these connectors and terminals.

Figure 3.7 Connector locations

3.3.2 Signal segment and power supply segment

Figure 3.8 shows each segment of the SATA interface connector and pin numbers.

Figure 3.8 Power supply pins (CN1)

3.3.3 Connector specifications for host system

The connector of host system for mating with the disk drive must be compliant with Serial-ATA Revision 2.5 specification. For detail of requirements about SATA interface connector, refer to the "Serial-ATA Revision 2.6."

IMPORTANT

The connection reliability per number of insertion/extractions varies with the condition of the connection with the host system. Therefore, we recommend that the customer evaluate the connector on the customer's system and select it from the connectors complying with the Serial ATA Revision 2.6 specification.

3.3.4 SATA interface cable connection

The cable that connects the disk drive to the host system must be compliant with the Serial ATA Revision 2.6 specification.

3.3.5 Note about SATA interface cable connection

Take note of the following precaution about plugging a SATA interface cable into the SATA interface connector of the disk drive and plugging the connector into a host receptacle:

IMPORTANT

When plugging together the disk drive SATA interface connector and the host receptacle or SATA interface cable connector, do not apply more than 10 kgf of force in the connection direction once they are snugly and securely in position.

IMPORTANT

Connecting/removing the cable without releasing the SATA interface Latch may lead to connector damage and the loss of the Latch function. Accordingly, be sure to connect/remove the cable while releasing the Latch.

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